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Student Book Answer Key Unit Page B Science Today Scientists predict the future of space travel Will ordinary people travel into space in the next five years? No, they won’t Trips today cost thousands of dollars Ordinary people won’t have enough money But scientists predict space travel will be cheaper in 20 years And then space tourism will grow How will tourists travel into space? I think scientists will build new spacecraft They’ll build spaceports, too A spaceport is like a station for trains, or a port for ships! Will tourists stay in space? Yes, they will People will build space hotels C F F T F T T Page B a b a b C Will will will Will will won’t Will won’t Page D My parents will build a house on the Moon We will go on vacation in space My brother will have his own spacecraft I won’t stay on Earth I will fly around the galaxy! E How will … travel Will … drive Will … go How will tourists travel in space? They’ll travel in space planes What about robots? Will robots drive the spacecraft? Hmm No, they won’t I think astronauts will drive the spacecraft Will tourists go on space trips? Yes, they will They’ll go on trips to the moon and Mars Page G Will they build a hotel on the Moon? Will it have a swimming pool? Where will people eat? Will people go on moonwalks? H will build will travel won’t be will use won’t feel ’ll play ’ll look will be I Students’ own answers Unit Page B Harry Lee is a space tourist He’s going on a three-month space mission Three months is a long time What will you if you miss your family? If I miss them, I’ll call or email There are lots of ways to communicate in space What about food? If you don’t like the food, will it be a problem? Yes, it will If I don’t eat, I’ll be hungry! But space food is good What will happen if you’re sick? That’s a good question! If I’m sick, I’ll call a doctor on Earth and I will ask for advice And what about at night? You won’t enjoy the trip if you can’t sleep I’ll count the stars if I can’t sleep There are millions of them! Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press C d e a b c Page B c e a b d Page 10 C don’t … won’t you‘re not … will float you‘re lucky … they‘ll send You‘ll go … work D … ’ll stay don’t sleep … ’ll be go … ’ll see feel … will give E What will you if you see Mars? If I see Mars, I’ll take a photo Will you be frightened if you see an asteroid? No, I won’t I’ll be excited if I see an asteroid F What will you if you see Mars? If I see Mars, I’ll take a photo! Will you be scared if you see an asteroid? No, I won’t If I see an asteroid, I’ll be excited! Page 11 H happen don’t will clean break go yes will Will 10 clean 11 Yes 12 will Hello, Luke What are you doing? I’m cleaning the spacecraft It’s a very important job in space What will happen if you don’t clean the spacecraft? Well, the computers will break, if you don’t clean them If the computers break, will we go back to Earth? Well, yes, we will Will it help if I clean them, too? Yes, it will Thank you, Harry I What will you if you see a shooting star on the way home? What will you if you get some money for your birthday? What will you if you’re bored on the weekend? What will you if you don’t feel well tomorrow? Students’ own answers Module Review Page 12 A won’t will will won’t won’t will B will visit Will people travel ’ll fly Will it be won’t be will have C gets … she‘ll buy she ‘ll look … has won’t … rains visits … she ‘ll learn goes … she ‘ll become she ‘ll discover … she looks D will explore … have find … will be is … won’t go discover … ‘ll give don’t build … won’t land C over 2,000 years ago roads Scotland the army the Romans Page 13 Page 15 E h a d e f F What will you wear if you go to a party on Saturday? What will you if you have an English test next week? Where will you go if it is sunny this weekend? What will you if you finish your homework early tonight? G Students’ own answers B to live to have to play to take to build to go Unit Page 14 B Hadrian’s Wall The Romans arrived in Britain over 2,000 years ago When they arrived, they wanted to travel around the country But the roads in Britain weren’t very good So, they decided to build new roads The people in Scotland didn’t like the Romans They didn’t want them to control Scotland So, they had many battles About 150 years later, the Roman Emperor, Hadrian, came to Britain He planned to build a high wall between Roman Britain and Scotland Why? Because he needed to keep the army in Scotland out He decided to call it Hadrian’s Wall Interesting Facts Hadrian’s Wall was 117 kilometers long and three to six meters wide At its highest point, the Wall was 3.5 meters high There were many forts, towers, and gates along the Wall These helped to stop people leaving Today, thousands of visitors go to Hadrian’s Wall every year and try to imagine how the Romans lived Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Page 16 C c a b a c b D to write to bring to use What project are you doing, Sara? Well, I’d like to write about Easter Island Do you have any books about Easter Island? Yes, but I forgot to bring them today That’s OK Would you like to use the computer? Yes, please F to be to travel to discover to stop to find to see Page 17 G to go to see to make to put to happen to save to preserve to H Students’ own answers Unit Page 18 The Lost City of the Cloud People One day, a group of villagers were in the mountains of Peru They loved exploring the rainforest and discovering new things Suddenly, they heard a sound like water There wasn’t a lake near them Perhaps there was a river They found a path and started walking along it They went a long way, but they didn’t mind feeling tired They were curious about the sound Suddenly, they came out of the rainforest and saw a beautiful place There was a huge waterfall, and lots of flowers and plants They found ruined buildings, statues, and rock paintings It was a lost city, and it was over 1,000-yearsold Historians and archeologists soon came and began exploring the city What was this mysterious place? At last, they finished digging and examining the ruins And then they understood that this was the home of the Chachapoya tribe Chachapoya means “Cloud People” Today, people from all over the world enjoy visiting the lost city of the Cloud People C Numbers from top down: Page 19 B ✓ ✓ ✓ C coming looking drawing playing digging telling Page 20 D learning reading to be digging up to visit reading E studying to find traveling to go visiting F working being to to find trying Do you like working as an archeologist? Yes, I And I love being in Peru What are you planning to next? I’d like to find the Lost City of Atlantis Is Atlantis a real place? I don’t know But I’d enjoy trying to find it! Page 21 H to have working building looking having living to live finding to find 10 to solve I Students’ own answers Module Review Page 22 A to be to travel to work to visit to send B watching reading looking going coming C ✓ ✗ ✓ ✗ ✗ ✓ Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press D to shopping eating to go to visit to drive to see Page 23 E to explore to find enjoyed moving mind began promised going to tell 10 examining F Students’s own answers Unit Page 24 B Hi! I’m Paul and I’m going on a threemonth chocolate tour in Europe I’m starting my adventure in August First, I’m travelling by train to an old town in Spain called Xàbia There’s a chocolate festival there and I can’t wait to try all the different kinds of chocolate! There’s a chocolate museum there, too In September, I’m flying to Budapest in Hungary I’m meeting a friend there, and we’re going to Budapest’s Chocolate and Candy Festival This festival is famous for chocolate, of course It’s also famous for its other tasty treats, such as vanilla, honey, and sweet drinks Finally, in October, I’m going to a chocolate festival in Perugia, in Italy My friend isn’t coming with me He’s going to a cheese festival in France I’m not flying to Perugia I’m driving I want to see the beautiful mountains The festival in Perugia is one of the largest chocolate festivals in Europe There are chocolate displays, chocolate tasting days, and even chocolate sculpting C ✓ ✓ ✓ Page 25 B F P F F P P C a a b b b Page 26 D Are … having are Are … going aren’t ’re not are … going ’re going Are we having a school trip this year? Yes, we are Are we going to the science museum? No, we aren’t We’re not going to a museum this year Where are we going? We’re going to a chocolate factory Wow! That sounds good E is opening ’re offering ’re having ’m visiting ’re taking F The bus isn’t leaving at 8:00 It’s leaving at 8:30 A teacher isn’t giving a tour A guide is giving a tour The aren’t having chocolate for lunch They’re having sandwiches for lunch The guides aren’t tasting the chocolate The children are tasting the chocolate Page 27 G ’re having ’s happening ’s going ’s buying ’m meeting ’re coming ’re making ’m using ’re ordering 10 watching H Students’ own answers Unit Page 28 B Would you like to see the dessert menu? Yes, please Hmm … I’d like a fruit salad, please Certainly, Sir Would you like some ketchup with that? Er … No, I wouldn’t! How about some chili powder? What? No, thank you! Why are you asking me this? It’s the latest fashion It’s called food combining What’s that? It’s when you put two very different types of food together What kind of foods? It’s things like strawberries and pepper, or coffee and salt Or … and this is my favorite, ketchup ice cream with nuts and bananas Would you like to try something like that? No, thank you I think I’d like the check, please C Would wouldn’t Would would Page 29 B A T A A T T C to eat … wouldn’t like … would like to … thank you like … Yes Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Page 30 D d c b a E Yes, please I’m very hungry ✓ No, I wouldn’t I don’t like fish ✓ No, thank you I prefer strawberry ✓ Would you like to see the menu? Yes, please I’m very hungry Would you like to try today’s special? It’s fish No, I wouldn’t I don’t like fish Would you like some chocolate ice cream? No, thank you I prefer strawberry F Would you like to try the soup? Would you like some ketchup? Would you like an orange? Would you like to have a piece of bread? Page 31 G Would would to thank Yes you don’t Would would H Students’ own answers Module Review Page 32 A b b c c b a B ’m going ’re taking ’re visiting ’re finding ’m entering are going ’m traveling ’m starting C Would you like to Would you like Would you like to Would you like Page 33 D doing going making Would please E Students’ own answers Unit Page 34 B Graffiti-Knit the City The next time you’re walking in a city, you may see something fun! It’s a new type of street art, or graffiti It’s bright and colorful, but you don’t need paint to it You need wool, and you need to be able to knit This new art is called yarnstorming, and you can it anywhere You can decorate trees, buildings, statues, cars or anything else with knitting! Artists put gloves and scarves on statues and huge covers on phone booths In London, somebody knitted the characters from Alice in Wonderland to celebrate the new film Someone else once huge, knitted hearts from a statue in Piccadilly Circus So, where did yarnstorming begin? Some people believe it began in a small town somewhere in the U.S It quickly became popular in other countries Luckily, yarnstorming isn’t vandalism, and it isn’t bad for the environment That’s because it’s easy to take the knitting off The knitters even tie notes to their work and tell people to keep the knitting C e d f c b a Page 35 B a ✓ b ✓ a ✓ a ✓ C something Someone anyone someone something anywhere Page 36 D something anything anywhere somewhere something E anything something Somewhere something anywhere anyone Are you doing anything over the weekend? Yes! I’m doing something really fun! I’m going on a trip with my aunt Where are you going? Somewhere in a park What does your aunt do? Well, she’s an artist She paints, but she also does green art What’s that? It’s when you make something from plants or other natural things Lucky you! That sounds great I’m not going anywhere and I’m not seeing anyone Come with me! You can some art, too! F somewhere anything something somewhere anyone everything Page 37 G anything anywhere something somewhere H something anything somewhere anyone anyone someone I Students’ own answers Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Unit Page 38 B Once there was a young artist called Mia She wanted to be famous One day, she was coming out of an art gallery with her sketches when she saw somebody outside A woman was painting a building It was a very beautiful picture and Mia stopped to look Then she realized the woman was a famous artist called Camila Blake “Ah,” said Camila, when she saw Mia with her sketches “You’re an artist, too.” “But I’m not brilliant like you,” Mia replied “People don’t want my paintings.” “Show me your work,” said Camila “I’ll give you an art lesson.” So, Mia began painting Camila gave her advice and helped her with her work After a while, a man stopped by Mia’s painting “I’d like to buy that for my wife,” he said “Shall I bring it to your house later?” Mia offered She was happy It was her first sale “Thank you,” said the man And he gave Mia his address Mia began a new painting, and soon, more people came They looked at her paintings and her sketches, and they wanted to buy them all At the end of the day, there were no more of Mia’s pictures “Now you’re a successful artist!” said Camila “Come on Let’s celebrate! I’ll buy you some cake.” C C C M M C Page 39 B b c d a C d c b a Page 40 D Shall Shall ’ll E Shall ’ll ’ll Shall I don’t have any paints Shall I buy you some when I go to the store? Yes, please My computer’s not working I’ll lend you my laptop Thanks, Dad I can’t find a good picture of the Mona Lisa I’ll find something for you Thanks, Josh I’m doing a sketch, but I can’t get the smile right Shall I help you? No, thanks, Katie Practice makes perfect G Shall … get ’ll draw Shall … paint ’ll get Page 41 H Shall … mix ’ll mix ’ll make Shall … get ’ll take I Students’ own answers Module Review Page 42 A c a b a c B anywhere somewhere anyone anything something anything something anyone C Shall ’ll ’ll Shall Page 43 D somewhere Shall anyone anything ’ll E I’m bored I’ll go to the park with you I’m tired I’ll clean the car I can’t find my pen I’ll lend you mine I can’t my homework I’ll help you Unit Page 44 B If you go to Bodie, in California, you will see a ghost town There are houses, but nobody lives there, and everything is broken and old There are stores, but they are empty, and no one works inside If you explore the buildings, you’ll see mice everywhere You’ll see snakes and lizards, too And if you go outside, you may see a mountain lion or a bear But there are no people in the town So, where did they go? In the 1870s, a man discovered gold in the Sierra Nevada Everybody heard about the gold, and many people came to find it They built gold mines, and then they built a town They called the town Bodie, and they lived there and looked for gold But by the 1940s, there was nothing left in the mines The gold was gone, and everybody went Today, Bodie is an historical place and a tourist attraction It’s closed in the winter because of the terrible wind and snow But in the summer, thousands of visitors come They try to imagine what life was like in the Wild West all those years ago C nobody Everything No one everywhere Everybody nothing Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Page 45 B ✓ ✓ ✓ C no one nobody nothing nowhere no one Everything Page 46 D a b a c b E nothing No one Everyone Everyone Everything No one F What’s your town like? It’s boring There’s nothing to do! What about the cafe? It’s boring No one goes there! What about your friends? What they think? Everyone thinks it’s boring What’s your town like? I like it! Everyone is friendly Everything is fun! No one is bored! H There are ghost towns everywhere! They’re all around the world Craco is a beautiful, medieval village in the south of Italy Once it was a busy and successful town Everything was happy there No one wanted to leave! But then, in 1963, everywhere suddenly moved to a different town! They took everything they had, and they didn’t go back What happened? Why did they leave? They left because there were many earthquakes and landslides The village became too dangerous to live in Page 47 I somewhere nothing no one Everywhere everything nowhere Everyone nothing J Students’ own answers Unit 10 Page 48 B Jack’s school was closed for the day “I’m very busy at work today,” said Jack’s mom to his dad “He can go to work with you, can’t he?” Jack’s dad was a town planner, and he had an important meeting that day But he said, “OK.” Then he asked Jack, “You will be good, won’t you?” “Yes, I will,” said Jack “I’m always good!” “And you won’t talk in the meeting, will you?” “No, I won’t.” He smiled A driver drove them to the office in a long, black car Jack looked out the window The town looked gray “This town is ugly, isn’t it?” said Jack “Yes, it is,” said Jack’s dad, but he wasn’t really listening “People don’t like it, they?” Jack’s dad didn’t look up At the meeting, people were talking about the plans for a new town “We’re building houses, hospitals, stores, and offices,” said a woman “It’ll be just like this town,” said Jack’s dad And he was happy with that “No!” said Jack “Nobody likes this town Build a new and colorful town! Paint the houses blue and red Plant flowers! You can it, can’t you?” “Yes, we can!” said everyone in the room Even Jack’s dad looked excited And so they built a new town They painted the houses blue and red, and they built a beautiful park, and a movie theater They called the movie theater “Jack’s theater’’, and painted it purple and green C d f a c e b Page 49 B a a b b a b Page 50 C b d e c f a D Yes, I am Yes, it is No, they don’t E You’re from Brasilia, aren’t you? Yes, I am That’s the capital of Brazil, isn’t it? Yes, it is They don’t speak Spanish there, they? No, they don’t They speak Portuguese G isn’t he aren’t we is it will it don’t you don’t we Module Review Page 52 A everyone nothing Everywhere nobody Everybody B no one no one no one everywhere everyone C aren’t you isn’t it hasn’t he will you you won’t you Page 53 D aren’t Everyone didn’t somewhere Everywhere E isn’t it aren’t you aren’t you F Students’ own answers Page 51 H aren’t you you didn’t you isn’t it didn’t they I You like being a town planner, don’t you? Brasilia has a lot of tall buildings, doesn’t it? You don’t like old towns, you? They speak Portuguese in Brazil, don’t they? J–K Students’ own answers Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Unit 11 Page 54 B Great Discoveries Some great things happen by accident This is the story of penicillin Alexander Fleming was Scottish He was a scientist in the early twentieth century At that time, he was working hard on different ideas He was studying bacteria because he knew it was dangerous for humans He wanted to find a way to destroy it So he grew bacteria in small, round glass dishes called “petri dishes” He did experiments and tried to find an answer But he wasn’t successful He didn’t know what to Like all scientists, Fleming wore a long, white lab coat and he worked in a laboratory full of equipment But Fleming wasn’t the cleanest scientist in the world One day, when he left to go on vacation, he didn’t clean his petri dishes When he came back, he noticed some interesting, green mold growing on one of his dishes He studied it through his powerful, silver microscope and saw that the mold was killing the bacteria He was amazed He knew he could use the mold to fight bacteria in humans Years later, his ideas were successful Today, penicillin saves millions of lives C small, round long, white interesting, green powerful, silver Page 55 B Opinion: beautiful fantastic ugly Size: large big small Age: old modern new Shape: triangular square round Color: red yellow blue Material: wooden cotton glass C Students’ own answers D b b Page 56 E huge, modern large, round, glass great, new fantastic, black and white ugly, green F Helen They’re building a big, new science laboratory at our school A scientist from Denmark is coming to open it Mom That sounds good Helen But I’ve only got an old, gray, cotton lab coat Can I have a new one? Mom Yes, of course Helen And can I have a silver, new microscope for my birthday? Mom All right, Helen Helen Thanks, Mom I want to be a famous scientist one day I want to discover a new, fantastic idea G little, old, gray beautiful, green tiny, brown huge, old, black H Where did you live when you were a child? We lived in a little, old, gray house in the countryside I loved exploring the beautiful, green fields and finding out things Were you always interested in science? Yes, I was I did experiments in a tiny, brown shed in our garden Did you have a lab coat? Well, no, I didn’t But I had a huge, old, black coat It was my father’s and I loved it! Page 57 J They’ve got great, new science books She’s got a lovely, white lab coat It’s a fantastic, large, modern building He’s an interesting, young scientist K long, rectangular, wooden smart, green, cotton small, white, plastic amazing, silver big, black and white fantastic, new Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press L Students’ own answers Unit 12 Page 58 B Did you use to eat your vegetables? When you were small, did your parents use to say, “Eat your vegetables, or you won’t grow!”? Did you use to listen to them? Or did you use to hide your vegetables under your plate? Today we may not always like our carrots and our peas, but we know they’re good for us and make us healthy But many years ago, people didn’t use to know that there were vitamins and minerals in their food They often became sick, and they didn’t know why One of the first people to think about food and health was a man called Dr James Lind He became a doctor on a ship in 1747 At that time, sailors used to go on long sea voyages, and they often caught a disease called scurvy In those days, they didn’t use to have refrigerators So, they used to eat a lot of dried meat and bread, but no fruit or vegetables Dr Lind thought that the sailors’ diet was the reason for scurvy He started to experiment He decided to give the sailors some fruit to eat He gave them limes and they recovered from their sickness Two hundred years later, scientists discovered that limes are full of Vitamin C, which keeps us healthy Dr Lind’s experiment was the beginning of our understanding of how food can make us healthy C T T T F T F Page 59 B a a b a C use to used to didn’t use to used to use to Page 60 D Students’ own answers E use to No, I didn’t use to Yes, I did use to No, I didn’t Did you use to Yes, I did F Did you use to swim in the sea? Did you use to eat a lot of chocolate? Did you use to like bananas? Page 61 G use to be use to use to eat used to play used to ride didn’t use to like didn’t use to get up used to be H She didn’t use to watch TV She watches TV now She didn’t use to ride a bike She rides a bike now She didn’t use to love ice cream She loves ice cream now She used to go to bed early She doesn’t go to bed early now She used to have a lot of colds She doesn’t have colds now I Students’ own answers Module Review Page 62 A ✓ ✗ He wants to wear a nice, green, cotton coat ✓ ✓ ✗ He likes growing ugly, yellow mold in petri dishes B interesting, green fantastic, tiny, silver large, green, plastic fascinating, new large, pink, cotton C use to like used to have use to enjoy didn’t use to like used to love used to have use to learn used to learn Page 63 D d b g h f c E Students’ own answers Unit 13 Page 64 B I’m talking to Ana and Lucy They run a school magazine called Chatter Tell me, was it difficult to start a magazine? Yes, it was We had to work hard But now the magazine is popular, and it’s really fun! Lots of young people would like to start a school magazine Do you have any advice? First, you must talk to the teachers at your school That’s right You mustn’t start before your school gives you permission What happens after that? You should find an editor, writers, and photographers The editor has the most important job What does the editor do? He or she has to make all the decisions and decide what to include Then you can think about cost and design You need to think about the cover, the number of pages, and the kind of articles you want And the title is important It doesn’t have to be really original, but it has to be interesting! Short titles are usually best And then you can start work? Yes! Do interviews, write stories, take photos, and create the magazine When you’re happy with it, print lots of copies, and sell them! Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press C ✓ ✗ ✓ ✗ ✓ ✗ Page 65 B ✓ ✓ C mustn’t must must don’t have to have to Page 66 D b a c a b b E have must must mustn’t don’t have F We have to print the next magazine tomorrow But we need one more story I know You must an interview tomorrow Who with? Johnny Step has a new film He’ll be at the theatre You must go there Will you come with me? I’m sorry, I can’t! I mustn’t leave my computer I’ve got a lot to You don’t have to work on the computer all day! Yes, I And we need that story! All right I’ll it! H has to must write has to has to look must think doesn’t have to take Page 67 I have have to must don’t mustn’t J Excuse me, Johnny My name’s Hugo Can I ask you some questions? No, I’m sorry I have to be at the theater in ten minutes and I have to meet some reporters before that Please, Johnny! It’s for our school magazine We must have a good story for tomorrow! You don’t have to stay long All right You can ask me three questions But you can’t ask me more than that I mustn’t be late for the show! L have to don’t have to have to must / have to mustn’t M Students’ own answers Unit 14 Page 68 B Have you seen this monkey? A monkey called Sabrina has escaped from Fleetside Zoo The zoo has informed the emergency services, and they have started a search for Sabrina They are looking in local parks and gardens Fleetside Zoo has been open for 25 years, and thousands of visitors go there every year There is a large monkey enclosure at the zoo, and Sabrina is a very popular monkey there She is ten-years-old and has been at Fleetside for eight years Everyone wants to see Sabrina back at the zoo “We’re all very worried,” said one keeper at the zoo “This is the first time we have lost an animal Sabrina is a lovely monkey She eats a lot and sleeps a lot I don’t think she will hurt anyone.” “We have spoken to a number of people,” said one police officer “But they haven’t seen her We think Sabrina has gone to the park Monkeys like trees and open spaces.” If you have seen a monkey, please contact the zoo C Numbers from top down: Page 70 B started been been given escaped found C ✗ ✓ ✓ ✓ ✗ ✓ Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press D Nero’s keeper I’ve looked after Nero for ten years I’ve worked with other animals too, but lions are my favorite I love Nero He sleeps all the time because he’s very old and tired He’s gentle, too I haven’t see him angry before He hasn’t hurt anyone before This is the first time he has escape E been seen eaten bought taken escaped Page 71 F haven’t lost haven’t worked haven’t seen have seen haven’t found has looked G has returned haven’t seen haven’t worked hasn’t done hasn’t had has been H–I Students’ own answers Module Review Page 72 A a b c c a b B must mustn’t don’t have to don’t have to must C has become have started haven’t done has opened hasn’t eaten has given 10 D have done have been have swum have become haven’t written I have done have worked haven’t been Page 73 E climbed has have done haven’t have must don’t mustn’t 10 begun F Students’ own answers Unit 15 Page 76 Page 74 B Community paramedics live in the local area They get to accidents first and look after patients until the ambulance arrives We interviewed Lucy Reynolds about her job as a community paramedic Have you trained as a nurse or a doctor? No, I haven’t Community paramedics aren’t trained like that Have you learned first-aid? Yes, I have I carry first-aid equipment with me I’ve taken a training course, too Have you ever driven an ambulance? No, I haven’t I’ve never driven an ambulance My brother, John, is an ambulance driver so of course he drives an ambulance Has he been at the same emergency as you before? No, he hasn’t He works in a different town So, what you when you arrive at the scene? Well, we talk to the patient We find out what happened We ask them questions about their health and we give them first-aid Have you ever worked in a disaster zone in a different country? No, I haven’t I’ve never done that, but I’d like to try that in the future I’d like to help people in other countries I’d like to make a difference Two questions use ever C d c a e b Page 75 B c a d b C A Have … been A Has … arrived A Have … received B have B hasn’t B have Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press D Have you seen Have you heard Has the storm arrived Have the people left Has the reporter told F ever never ever never G Have you ever been in a natural disaster? No, I haven’t I’ve never been near anything like that But my brother, Jim, is a news reporter He’s been to lots of places Has he ever been in an earthquake? He’s never been in an earthquake, but he’s been close to a tornado That was scary Page 77 I Have you ever seen a tornado? No, I’ve never seen a tornado Has Jim ever been in an earthquake? No, he’s never been in an earthquake J Have you ever been Have you ever seen Have you ever helped ’ve taken Have you ever saved ’ve never done K Have you ever been in an earthquake? No, I haven’t Have you ever seen a hurricane? Yes, I have It was in the Caribbean Have you ever helped people in a disaster zone? Yes, I have I’m a news reporter, but I’ve taken a first-aid course Have you ever saved someone’s life? No, I haven’t I’ve never done that, but I’ve helped doctors and nurses They a fantastic job M Have you ever climbed a volcano? Have you ever seen a tornado? Have you ever been in a thunderstorm? Have you ever been in an earthquake? Have you ever given first aid? Have you ever met a reporter? 11 N Students’ own answers Unit 16 Page 78 B Hi, Nada! How are you? I’m OK, but have you heard about the tornado in Florida? No, I haven’t I’ve just got home from school I haven’t turned on the TV yet Why? The National Weather Service has just issued a tornado watch What does that mean? It means there might be a tornado The weather conditions are right Have you prepared the house yet? We haven’t bought any extra food yet Mom and Dad have already closed the shutters on the windows And I’ve just put some new batteries in my flashlight We’ve had tornados here before, so we know what to It sounds scary It’s OK What’s the weather like in England? It’s sunny Lucky you! Well, I’ll call you tomorrow and let you know what happened OK Good luck! C yet already yet just Page 79 B ✗ ✓ ✗ ✓ ✓ ✗ C just yet yet yet just just Page 80 D yet already yet just just Have you turned on the TV yet? There’s a program about hurricanes in Jamaica Oh, that program’s been on before I’ve already seen it three times Well, I haven’t seen it yet My friend, Grace, is visiting her aunt in Jamaica, so I’d like to watch it OK I’ll watch it again Where’s Joe? He’s interested in extreme weather I think he’s just come in I’ve just heard someone go upstairs E just yet already yet yet F I’ve just spoken to Grace Has she arrived in Jamaica yet? Yes, she’s already been there for three hours Has she arrived at her aunt’s house yet? No, she hasn’t left the airport yet Page 81 G Has Grace arrived at her aunt’s house yet? She’s just had her dinner She hasn’t emailed Kate yet She’s already heard about the hurricane H ’ve just come ’ve already eaten haven’t had a hurricane yet ’s already bought have already left has already ended haven’t stopped yet have just finished I Students’ own answers Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Module Review Page 82 A c b a b a c B e b f c a d C I haven’t seen the news yet Has the storm started yet? The rain has just begun We haven’t heard the thunder yet My brother has already lost his umbrella I’ve just seen lightning Page 83 D Have you heard haven’t seen Has it started yet ’ve just seen ’ve never made haven’t done ’ve already done haven’t eaten yet E never yet hasn’t ever have F Have you ever seen snow? Have you ever run in the rain? Have you ever heard thunder? Have you ever been in a hurricane? Have you ever seen a tornado? Students’ own answers 12 Unit 17 Page 84 B Earlier, Sam interviewed tree expert, Scott Hill, to find out about the amazing Giant Redwood trees in California How long have you been interested in trees? Well, I’ve been interested in trees since I was a child We lived near a forest when I was a little boy I loved climbing trees and finding out about them How long have you lived in California? I’ve lived here for a year I’ve been interested in the Giant Redwoods since I arrived What is special about them? They’re the tallest trees in the world and can grow to more than 100 meters How long they live? They usually live between 500 and 700 years, but they can live for up to 2,000 years They are very strong, so fire, disease, and insects don’t kill them Are they protected under the law? Yes It’s been illegal to damage the trees for almost 100 years That’s because people cut thousands of them down for their wood C child year Giant Redwoods 100 years Page 85 B ✓ ✗ ✓ ✓ ✗ ✗ C since for since for for Page 86 D I’m Henry I’ve lived in California since I was a baby I’m twenty-two now I haven’t known Scott since long But he’s been my friend for he arrived We both like trees! I’ve wanted to go to the Amazon rainforest for a long time I’m really interested in the Kapok Tree there I’m going to the Amazon rainforest on July 30th I’ll tell you all about it! E Henry has been in Brazil for five days He’s been in the Amazon rainforest since Tuesday He’s seen lots of animals since he arrived He hasn’t studied any trees since he got there G How long have you been a rainforest guide? How long has your family lived in the rainforest? How long have you been a rainforest guide? I’ve been a guide for many years How long has your family lived in the rainforest? My family has always lived in the rainforest Page 87 H How long have you studied the Kapok Tree? How long has this tree been in the forest? How long have tourists visited this part of the forest? I ’ve been … for ’ve been … since haven’t written … since ’ve seen … since ’ve met … since ’s lived … for hasn’t been … for haven’t eaten … since J Students’ own answers Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press Unit 18 Page 88 B Not all reefs are made of coral Since the 1970s, people have made artificial reefs with metal objects which include old trains, cars, airplanes, refrigerators, boats, and even bridges These wrecks make artificial reefs Coral reefs are important for sea life Thousands of different species live and grow on them Sadly, fishing, tourism, and global warming have damaged them The new metal reefs make homes for marine life, like plants, shellfish and other fish So, fishermen move away from the fragile coral reefs and begin fishing in the new places Artificial reefs attract divers who like to explore them There are all kinds of artificial reefs around the world In 2001, people sank a huge ship off the coast in Florida In 2008, they dropped forty New York City subway cars into the ocean Some marine biologists and conservationists don’t agree with artificial reefs They think they pollute the sea What you think? C T T T F T F Page 89 B My aunt has lived in Australia since 2004 ✓ ✓ Last year, she took some amazing underwater photos ✓ C has has visited went explored saw 13 Page 90 D started went painted looked has already written have worked have said E f a d b e c F Yesterday, in science class I learnt about coral reefs Coral reefs have existed for millions of years My dad’s seen lots of coral reefs He started diving as a child because he lived by the beach I’ve gone diving with my dad a few times We saw amazing fish last summer We went to the Red Sea last year It was a great vacation and I didn’t want to go home Page 91 G When Jason deCaires Taylor was a child, he lived in Europe and Asia He enjoyed diving in the coral reefs of Malaysia He loved the sea and nature He loved art too, so he studied art in college Jason has done many things in his life When he left college, he became a diving instructor He also became an artist and a photographer H has created made went have had created I Students’ own answers Module Review Page 92 A for since since for since since for for B Lucy has been in California for six months She has been at her new school since January She has made lots of friends since she started She hasn’t emailed her old friends for two days Her dad has worked in a forest since they arrived C How long have you lived in California? How long have you known your new friends? How long have you lived in your new house? How long have you studied English? How long has your dad had his new job? How long has he been interested in forests? Page 93 D arrived went was ’ve had ’ve read ’ve heard E for since saw done swam F Students’ own answers Oxford Discover Grammar  Student Book Answer Key  © Oxford University Press 14 ... everywhere Everybody nothing Oxford Discover Grammar Student Book Answer Key © Oxford University Press Page 45 B ✓ ✓ ✓ C no one nobody nothing nowhere no one Everything Page 46 D a b a c b E nothing... Brazil, don’t they? J–K Students’ own answers Oxford Discover Grammar Student Book Answer Key © Oxford University Press Unit 11 Page 54 B Great Discoveries Some great things happen by accident... ’ve heard E for since saw done swam F Students’ own answers Oxford Discover Grammar Student Book Answer Key © Oxford University Press 14

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