Exercise 2: Choose the best option 1.. A / an _______ species is a population of an organism which is at risk of becoming extinct.. endangerment 3.Only a few of the many species at risk
Trang 1GRADE 12 UNIT 9
Exercise 1: so, but, therefore, however
1 The wind was howling outside, _it was warm and comfortable indoor
2 The highway was under construction, _we had to take a different route to work
3 You could fly via Singapore; _, this isn't the only way
4 There is still much to discuss We shall, _, return to this item at our next meeting
5 It isn't that he lied exactly, he did tend to exaggerate
6 I thought the plane would be delayed; , I bought a lot of magazines to read
7 Jackson was going to study all night, he declined our invitation to dinner
8 We thought the figures were correct. , we have now discovered some errors
9 Cars have become much more complicated , mechanics need more training than in the past
10 We arrived at the theater late the play had not yet begun We were quite surprised
11 Prices have been rising It is unlikely, , that this increase will continue
12 The bread was old and stale, Martha ate it anyway
13 The holiday had been a complete disaster We, decide to fly home early if we could
14 He failed the exam, _he had to do the job he didn't like
15.The expedition hoped to climb the mountain by August. bad weather could be a
hindrance
Exercise 2: Choose the best option
1 I want to work as an interpreter in the future, , I am studying Russian at university
a but b so c however d therefore
2 I am going shopping for food this evening I do not have to go at the weekend
a so b but c however d moreover
3 When she got the news from her family, she could not do anything, cry
4 We live in the same building we have hardly seen each other
5 I went to buy a Rolling Stones CD the shop didn't have it
6 Anna needed some money, , she took a part-time job
a furthermore b moreover c however d therefore
7 Julie has a guitar she plays it really well
8 My fingers were injured my sister had to write the note for me
9 The concert was cancelled we went to a nightclub instead
10 He is only sixteen, and , he is not eligible to drive a car
a nevertheless b but c therefore d however
11 Maria tried to read a novel in French the book was too difficult for her to understand
a so that b therefore c but d and
12 To get from Vancouver to Victoria, you can fly, you can ride the ferry
13 I bought a bottle of wine we drank it together
14 The waiter was not very nice, , the food was delicious
a however b but c so d and so
15 _ hard he worked, he could earn enough money to support the family
a But b However c Therefore d Whatever
Trang 2UNIT 10
1 "Would you like to go with me to the Williams' wedding next month?" "I'm not sure
I _be too busy with school work."
2 A / an _ species is a population of an organism which is at risk of becoming extinct
a dangerous b endanger c endangered d endangerment
3.Only a few of the many species at risk of extinction actually make it to the lists and obtain legal _
a protect b protection c protective d protector
4.Probability of extinction depends _ both the population size and fine details of the population
demography
5 15,589 species (7,266 animal species and 8,323 plant species) are now considered _ risk _ extinction
6 It is found that endangered species are often concentrated in areas that are poor and densely populated, such
as much of Asia and Africa
a disappeared b increased c threatened d reduced
7 _ is the existence of a wide variety of plant and animal species living in their natural environment
a Biodiversity b Conservation c Globe d Individual
8 She _ be ill I have just seen her playing basket ball in the school yard
9 Peter has been working for 10 hours He _ be very tired now
13 When I was on holiday last summer, I was going to beach every day
A B C D
14 It was raining but I took an umbrella
A B C D
15 Our teacher came in when we are talking noisily
A B C D
16 Pollution is one of the main causes of species extinct
A B C D
III Choose the best answer to complete the following sentences.
17 The Red List is a special book that provides names of … animals
a rare b protected c special d endangered
18 ……is the natural environment in which a plant or animal lives
a place b habitat c habitant d environment
19 Sue isn’t usually here … weekends She goes away
a at b of c in d for
20 You …keep it secret or they will kill you
a may b must c can d need
21 The life … of a rhinoceros in the wild is about 40 years
a time b age c span d duration
22 She has kept some pets
Some pets ……… ………
23 It was cold, but I didn’t put on my coat ( however)
………
24 Mary came to class late because it rained heavily
If………
25 You are not allowed to use my motorbike (mustn’t)