Giáo án Tiếng Anh 8 unit 16: Inventions

Giáo án Tiếng anh lớp UNIT 16 : INVENTIONS Lesson : Section: - Getting started - Listen and read I Aim Practice reading for details about the development of paper and how to produce chocolate II Objective By the end of the lesson , Ss will be able to know the origin of paper and talk about the process of producing something III Teaching aids: Posters , cassette , realia , chart , pictures , grid chart PROCEDURE I / Warm up : Quiz – Who did it ? - Divide the class into teams - Tell Ss the team raising theirt hands first will have the right to answer the question - Inform the questions “ Who was the inventor of ? or “ Who invented .? • Suggestions : Steam engine -> Thomas Savery built the first steam engine in 1698 and later Watt improved it Light bulb - > HumphryDavy , an English scientist , in 1800 Giáo viên: Nhã Ca Sewing machine -> Issac Meritt Singer ( 1850 ) Aqualung -> Jacques – Yves Cousteau in 1943 Telephone -> A Graham Bell  Lead into the new lesson II / Pre- reading : Introduce the topic of the passage reading and some new words to Ss Pre- teach Vocabulary : - to remove use a flowchart and Vietnamese to - to crush elicit words - to liquefy 1-> 2-> 3-> - to grind - to manufacture = to produce - a process – manufacturing process - a mold ( realia / picture ) - conveyor belt ( picture ) + Have Ss copy in their note books • Checking vocabulary : Slap the board Open predictions : - Set the scene “ Tim jones , Hoa,s American pen pal , is visiting a chocolate factory with his class and his teaher Mrs Allen Now , guess who will show them around the factory and what they will learn from the visit ? - Ask ss to work in groups to predict - Collect their predictions and write them on the board III / While- reading : Checking the their predictions - Play the tape and ask Ss to listen while reading the dialogue ( times ) - Have them correct their predictions and give feedback Giáo viên: Nhã Ca 2 Matching : - Ask ss to match the half sentences - Play the tape again ( times ) and have Ss compare their answer with their pictures - Call on Ss to give their answers for the class - Give feedback and correct Answer Key : E a) The beans are cleaned before being cooked D b) Mr Roberts thought Tim and Sam were going to touch the button C c) After cooking , the cooa bean smell like chocolate F d) Sugar is one of the ingredients in chocolate B e ) Mrs Allen warned Sam to leave some chocolate for others A f) A sample of chocolate is given after visitors have toured the factory => Call on some pairs to read the dialogue in front of class - Correct mistakes if any - Get ss to write the full sentences in their exercise notebooks IV / Post - reading : Grid : - Put the grid on the board and have Ss copy - Ask ss to read the dialogue again and fill in the grid chocolate manufacturing process Answer Key : The beans are washed , weighed and cooked The shells are removed The beans are crushed and liquefied Cocoa butter , sugar , vanilla and milk are added Giáo viên: Nhã Ca The mixture is ground , rolled and pound into the molds - Call on some pairs to go the board to write their answers - Give feedback and correct Rewrite the grid using sequence markers ( First , next , then , finally ) V/ Homework : Learn by hear new words and write two line for each one Copy the write in their notebooks Do the exercises in the workbook Prepare the next lesson Giáo viên: Nhã Ca UNIT 16 : INVENTIONS Lesson : Section: - SPEAK + LISTEN I Aim Futher practice in using the passive II Objective By the end of the lesson , Ss will be able to talk about the inventions using the passive III Teaching aids: tables PROCEDURE I / Warm up : : Bingo - Get Ss to brainstorm a list of 10 words and write them on the board foreman process , manufacture , remove , crush , liquefy , grind , pour , mold , conveyor belt - Ask ss to choose any words and copy them into their paper - Call out the words until someone has ticked all of his / her words and shouts “ Bingo “ II / Pre- speaking : Introduce the topic of the speaking and some new words to students Pre-teach Vocabulary : - Have ss study the meanings of the inventions using Vietnamese Facsimile Reinforced concrete Microphone Loudspeaker Giáo viên: Nhã Ca 5 Helicopter * Checking vocabulary : Which words Grammar Awareness - Ask ss to read the dialogue / 148 again and pick out all of the passive sentences - Call on Ss to give their answer - Have ss review the passive in the present and past simple tenses Answer Key : This is where the cocoa beans are stored ( present simple ) That button can not be touched ( passive with model ) The beans are washed , weighed and cooked here After the shells are removed into molds III / While- Speaking : Practice : Word- Cue Drill - Have Ss read the model dialogue on 149 - Let Ss know what they are going to : Ask and answer questions about the inventions to fill in the missing information - Ask ss to look at the tables on 150 and 156 and model the exchanges , using a good student - Have Ss work in pairs , one looks at the table / 150 and the other / 156 - Ask Ss to ask and answer the questions orally then fill in the missing information - Go around and assist Ss if necessary - Call on some pairs to demonstrate the exchanges - Give feedback and correct - Have Ss copy the complete table Invention Printing Press Bicycle Date 1810 1816 Inventor Friedrich Koenig Karl D Sanerbronn Giáo viên: Nhã Ca Nationality German German Facsimile Sewing machine Reinforced 1843 1845 1849 Alexander Bain Elias Howe F.J Monier English American French concrete Microphone X-ray Loudspeaker Helicopter Color TV 1878 1895 1924 1939 1950 D.E Hughes Wilhel Konarad C.W.Rice Igor Sikorsky Peter Carl Gold American German American American American mark Optical fiber 1955 Narinder Kapany Laser 1958 Gordon Gould IV / Post - speaking : Making reports German American - Model and have Ss repeat Example : The Printing Press was invented by Friedrich Koenig in 1810 - Ask Ss to use the complete table to report what they have found V / Pre-listening : Introduce the topic of the listening and some new words to students Pre-teach vocabulary : - Procedure (n) ( Translation ) - Pulp (nu) -> What is used to make paper ? - Vat (n) ( picture / drawing ) - to drain = to make something empty or dry by removing all the liquid from it ) - Roller (n) ( picture ) - Roll (n) ( realia ) => Have Ss copy VI / While -listening : Gap fill ( Listen ) - Inform the topic : Paper – making process Giáo viên: Nhã Ca - Have Ss read the sentences - Play the tape or times and ask ss to fill in the gaps with the words they catch - Ask ss to compare their answers with their partners - Call on Ss to give their answers Answer Key : simple same two hundred left rollers - Call on some Ss to read the complete sentences in front of class VII / Post - reading : Ordering Prediction ( Listen ) - Ask ss to read the sentences (a-> g ) carefully and guess the order - Ask Ss to work in groups to predictions - Collect their predictions and write their predictions on the board - Play the tape again and ask Ss to listen - Call on Ss to give their correction - Give feedback and correct : Answer key : c Paper pulp was placed in the vat d Paper pulp was mixed with water a The water was drained e The pulp fibers were poured out g The pulp was conveyed under the rollers f The fibers were smoothed and pressed dry b The paper was put on a roll => Call on some Ss to read the complete sentences aloud - Get them to copy their notebooks VIII/ Homework : Learn by heart new words and write two lines for each one Giáo viên: Nhã Ca Use the information in the table to write 12 sentences in the notebooks Prepare the next lesson Giáo viên: Nhã Ca UNIT 16 : INVENTIONS Lesson : Section: - Read I Aim Listening and reading for information about paper making & inventions II Objective By the end of the lesson , Ss will be able to fill in the gaps and order sentences from listening III Teaching aids: cassette , , chart , pictures PROCEDURE I / Warm up and pre-teach : Brainstorming Microwave Household Appliances ( May be write the names of the things in Vietnamese )  Remark and introduce some new words in English : - Microwave (n) : vi sóng - Vacuum (n) : máy hut bụi - Toaster (n) :máy nướng bánh mì - Have Ss copy * Checking vocabulary : Bingo - Get Ss to brainstorm a list of 10 new words and write them on the board Giáo viên: Nhã Ca 10 IV / Homework : Learn by heart all the things they have learnt and copy in their notebooks Do the exercises in the workbook Prepare the next lesson Giáo viên: Nhã Ca 12 UNIT 16 : INVENTIONS Lesson : Section: - Write I Aim Futher practice in using the sequence markers II Objective By the end of the lesson , Ss will be able to use the sequence markers to describe a manufacturing procedure III Teaching aids: cassette , pictures , cardboards PROCEDURE I / Warm up : Jumbled words - Put the cardboards with jumbles words on the board - Inform the topic : words related to papermaking procedure : lppu = pulp llreor = roller moreer = remove darni = drain berif ver = fibre - Ask each group to write their answer on a piece of paper to hand in => Lead in the new lesson II / Pre - writing : Introduce the topic of the writing and some new words to students Pre-teach vocabulary : - a log ( n) : a thick piece of wood that is cut from a tree - to flatten = to make sth become flat - to refine = lọc , làm tinh khiết Giáo viên: Nhã Ca 13 - chemically ( adv ) = treated in a chemical process => Have Ss copy * Checking vocabulary : What and where Gap fill : - Ask ss to read the text / 152 and fill in the gaps with the right sequence markers to describe the procedure of paper - making - Ask Ss some question to check if they understand the text + What is cut into chips ? + What are chips mixed with before they are crushed to heavy pulp ? + Why is the pulp passed through rollers ? + What is the last step in paper – making ? - Call on some ss to read the completed sentences Give feedback and correct Answer Key : First Then Next After this Then Finally Ordering Pictures - Have Ss look at the pictures / 153 - Ask ss to think of the process of chocolate – making and put the pictures in the correct order - Call on some pairs to give their answers - Ask Ss to listen to check if their answers are correct or not - Read the statements aloud 1.d The fruit harvest is fermented for to days to kill the beans and turn them brown a The beans are dried in the sun e The beans are cleared in special machines c The beans are roasted to bring out the chocolate flavor Giáo viên: Nhã Ca 14 b They are shelled and ground to produce chocolate liquor f The liquor is made into chocolate candy or cocoa powder - Give feedback and correct Answer Key : -2 - -1- 5- III / While - writing : - Ask Ss to rearrange the sentences / 153 according to the ordered pictures - Call on Ss to give their answer Answer key : 1.d a e c b f - Have Ss use the sequence makers to link the sentences together in a paragraph - Go around and help Ss if necessary - Call on some Ss to read their writing for the class - Give feedback and correct => Have Ss copy - Call on some Ss to read the complete sentences aloud IV / Post- writing : Write from the following sets of words and phrases , complete which together describe the process of making Ice - cream You can make all the necessary changes and additions a) First / basic ingredients / be pored / tank b) Then / be mixed / thorough ( hoàn toàn , kĩ lưỡng ) c) Next / mixture / be cooled and piped / freezing tank d) Then / be beaten until smooth / and nuts or fruits / added e) After this / be packed / containers f) Finally / be kept / refrigerated room until / hard - Ask ss to work in groups - Collect their writings to show in front of class - Correct mistakes and ask them to copy in their notebooks Giáo viên: Nhã Ca 15 V / Homework : Learn by heart all new words and copy in their notebooks Rewrite their writings in their notebooks Prepare the next lesson Giáo viên: Nhã Ca 16 UNIT 16 : INVENTIONS Lesson : Section: - Language Focus I Aim Futher practice in using the passive II Objective By the end of the lesson , Ss will be able to change active sentences into passive ones and write WH – questions in the passive III Teaching aids: cardboards PROCEDURE I / Warm up : : Pelmanism - Inform the topic : Infinitive - Past participle - Didive the class into teams Infinitive Past participle Write Written Draw Drawn Sell Sold Win Won Run Run II / Language focus : Presentation : * Pre teach vocabulary : - to run a business / company = to be in charge of something - around the corner = very near - due to =because of Giáo viên: Nhã Ca 17 - flood (n) Ex: There might be flood when it rains heavily for days - Zipper ( Realia ) - Xerograph ( translation ) + Have Ss copy • Checking vocabulary : Run a business Xerograph Slap the board Around the corner Flood Due to Zipper - Have Ss review how to change an active sentences into a passive one Practice : 2.1 Language focus : - Have Ss exercise / 154 - Call on some Ss to give their answers orally for the class - Get some Ss to go to the board and write the sentences - Give feedback and correct Answer Key : a) The document was typed by Mrs Quyen b) The computer was repaired by Mr Nhan c) The picture was drawn by Ba Giáo viên: Nhã Ca 18 d) The lights were turned off by Hoa e) The cake was baked by Lan 2.2 Language focus : - Have Ss exercise - Ask Ss to compare their answers - Call on some ss to give their answers orally then ask them to go to the board and write the sentences - Give feedback and correct Answer Key : a) was awarded b) won c) ran d) was run / was sold e) was closed or closed 2.3 Language focus : - Have Ss exercise - Go through the underlined words with Ss before have them write questions Eg : a) The zipper -> What b) Maize -> What in the 16th century -> When c) by Lewis Waterman -> Who d) in Hungry -> where e) in coping machines -> in which machine - Have some ss to give their answers in front of the class - Give feedback and correct `Answer Key : a) What was invented by W.L Judson in 1893 ? Giáo viên: Nhã Ca 19 b) What was brought into Vietnam by Phung Khac Khoan ? When was maize brought into Vietnam ? c) Who invented the fountain pen ? When was the fountain pen invented ? d) Where was the ballpoint pen invented ? e) In which machine is xerography widely used ? 2.4 Language focus : - Ask Ss to use the pictures and the word cues to write a description of how white rice is produced in the traditional way , using the sequence markers - Have Ss complete the sentences orally first - Ask Ss to write the paragraph in their exercise notebook - Monitor while Ss are writing and help them if necessary - Call on some Ss to read their writing - Give feedback and correct First , the rice crop is harvested , Then the rice plants are threshed Next ( After this ) , the rice grains are husked in the mill to produce brown rice After this , the bran is removed in the mortar and it is finally winnowed to produce white rice III / Homework : Change the sentences in language focus into the active Ex : W.L Judson invented the zipper in 1893 Redo the exercises ( 1,2,4 ) in their notebooks Prepare the next lesson Giáo viên: Nhã Ca 20 UNIT 16 : CONSOLIDATION Lesson : Section: - Language Focus I Aim Futher practice in using the passive II Objective By the end of the lesson , Ss will be able to summarize the basic knowledge they have learnt in the second semester III Teaching aids: Cardboards , posters PROCEDURE =.> Introduce the contents of the lesson to students I / Grammar : 1/ Câu bị động Câu bị động sử dụng nhằm để nhấn mạnh vào hành động tân ngữ không nhấn mạnh vào hành động chủ ngữ câu chủ động be + P2 Phương pháp chuyển đổi từ câu chủ động sang câu bị động - Đưa tân ngữ câu chủ động lên làm chủ ngữ Trong trường hợp có tân ngữ ( trực tiếp, gián tiếp), muốn nhấn mạnh vào tân ngữ người ta đưa lên làm chủ ngữ ( thưòng tân ngữ gián tiếp làm chủ ngữ) Ví dụ: I gave him a book hay I gave a book to him Giáo viên: Nhã Ca 21 Trong câu book tân ngữ trực tiếp, him tân ngữ gián tiếp, ta đổi: He was given a book by me - Thời động từ câu bị động phải tuân theo thời động từ câu chủ động - Đặt by + tân ngữ đằng sau tất tân ngữ khác - to be made, to be made of làm - vật làm thứ nguyên vật liệu This table is made of wood - to be made from: làm - vật làm thứ nguyên vật liệu trở lên - to be made out of: làm ( dùng cho thực phẩm) This cake is made out of flour, egg, butter and sugar - Mọi biến đổi thời thể nhằm vào động từ to be, phân từ giữ nguyên (xem công thức đây.) Simple present hay simple past am is are + [verb in past participle] was were Chủ động : Hurricanes destroy a great deal of property each year Subject present complement Bị động : A great deal of property is destroyed by hurricanes each year singular subject be past participle Chủ động : The tornado destroyed thirty houses Subject Giáo viên: Nhã Ca past complement 22 Bi động : Thirty houses were destroyed by the tornado plural subject be past participle present progressive hay Past progressive am is are + being + [verb in past participle] was were Chủ động : The committee is considering several new proposals Subject present progressive complement Bị động : Several new proposals are being considered by the committee plural subject auxiliary be past participle Chủ động : The committee was considering several new proposals Subject past progressive complement Bị động : Several new proposals were being considered by the committee plural subject auxiliary be past participle present perfect hay Past perfect has have + been + [verb in past participle] had Chủ động: The company has ordered some new equipment subject present perfect complement Bị động : Some new equipment has been ordered by the company Singular subject auxiliary be past participle Chủ động : The company had ordered some new equipment before the strike began Giáo viên: Nhã Ca 23 subject past perfect complement Bị động : Some new equipment had been ordered by the company before the strike began Singular subject auxiliary be past participle Động từ khiếm khuyết (modal) modal + be + [ verb in past participle] Chủ động : The manager should sign these contracts today Subject modal + verb complement Bị động : These contracts should be signed by the manager today Subject modal be past participle modal + perfect modal + have + been + [ verb in past participle] Chủ động: Somebody should have called the president this morning Subject modal + perfect complement Bị động : The president should have been called this morning 2/ Mệnh lệnh thức trực tiếp Mệnh lệnh thức trực tiếp câu mà người lệnh cho người khác làm việc Nó có please trước Chủ ngữ hiểu you Sử dụng dạng đơn giản động từ (Nguyên thể bỏ to) Ví dụ: Close the door Open the window Leave the room Pay your rent Please turn off the light Be quiet Dạng mệnh lệnh thức phủ định thành lập nhờ cộng thêm don’t trước động từ Giáo viên: Nhã Ca 24 Don’t close the door Please don’t turn off the light Don’t open the window, please ( Please đứng đầu cuối câu mệnh lệnh thức làm cho câu trở nên lịch hơn) Mệnh lệnh thức gián tiếp Thường dùng với động từ sau: to order to ask to tell sb to sth ( not to sth ) to say Ví dụ: John told Mary to close the door Jack asked Jill to turn off the light The teacher told Christopher to open the window Please tell Jaime to leave the room John ordered Bill to close his book The policeman ordered the suspect to be quiet Lưu ý: Đuôi Let’s , shall we Ví dụ: Let’s go out for lunch, shall we? Khác với let us câu mệnh lệnh thức Ví dụ: Giáo viên: Nhã Ca 25 Let’s go now (chúng ta thôi) khác với Let us go, please ( xin đi) II / Exercises : - Ask ss to the exercises : The exercises in the workbook : Ex 1/96 Ex / 96 Ex / 94 Practical Workbook : Ex II / 189 - Call on some Ss to to go the board to write them - Correct and give feedback III/ Homework : Redo the exercises in their notebooks Ask ss to review to prepare the test Giáo viên: Nhã Ca 26