Bài ôn tập Unit 9,10,11- lớp 12

ĐỀ CƯƠNG ÔN TẬP UNIT 9, 10, 11 LỚP 12
I. Choose the words with the different pronunciation of the underlined
part.
1. A. dune B. tune C. future D. until
2. A. desert B. insert C. teacher D. certain
3. A. slow B. down C. show D. swallow
4. A. hide B. ivory C. decline D. continent
5. A. remained B. explored C. separated D. traveled
II. Choose the word which is stressed differently form the rest.
1. A. species B. destroy C. extinct D. reduce
2. A. comprise B. sandy C. circle D. northern
3. A. incredible B. Canadian C. fascinating D. amazingly
4. A. survive B. distinct C. wildlife D. support
5. A. serious B. extinction C. endangered D. performance
III. Choose the best answer:
1. A _________ is a landscape or region that receives very little
precipitation.
A. dune B. desert C. sandy area D. shrub land
2. A(n) ________ is a book that someone writes about their own life.
A. biography B. autobiography C. romance D. historical novel
3. Deserts take ________ one-third of the Earth’s land surface.
A. over B. on C. up D. after
4. After three hours of climbing, we finally reached the ________ of the
mountain.
A. crest B. steep C. corridor D. foot
5. ________ books are ones in which the story is told or illustrated with
pictures.
A. Comic B. Thriller C. Romance D. Science
6. A novel is usually divided into several _______.
A. sections B. units C. chapters D. passage
7. Dry salt lakes _________ 70 kilometers long and 15 kilometers wide

lie between long dunes.
A. to B. with C. of D. up to
8. The thriller was so exciting that I couldn’t ________.
A. let it down B. look it up C. pick it up D. put it down
9. 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
10. _________ air and water are the resources of illness in many big
cities nowadays.
A. Clean B. Polluted C. Contaminated D. B&C
11. The film was boring ________ I left in the middle.
A. but B. so C. however D. or
12. Parents ________ find that they cannot understand the way their
children are now being taught.
A. may B. have to C. might D. A&C
13. You could fly to Athens; ________, it’s not the only way.
A. however B. so C. therefore D. but
14. We can’t go out tonight _________ we haven’t got any money.
A. although B. because C. therefore D. but
15. The African elephant ________ become extinct.
A. may B. must C. mustn’t D. needn’t
16. You _______ go on the beach when the tide's coming in. It's very
dangerous.
A. must B. have to C. needn't D. mustn't
17. George has good knowledge of vocabulary. __________, he
pronounces well.
A. Although B. However C. Besides D. But
18. I can't find my purse anywhere; I _______ it at the office.
A. must leave B. must have left
C. must be leave D. must have been leaving

19. Passengers _______ smoke until the signs have been switched off.
A. mustn't B. can't C. needn't D. mightn't
20. You _________ do all the exercises. Ten sentences will be enough.
A. mustn't B. can't C. needn't D. mightn't
21. There is still much to discuss. We shall, ________, return to this item
at our next meeting.
A. however B. so C. therefore D. but
22. Cars have become much more complicated. _______, mechanics need
more training than in the past.
A. however B. so C. therefore D. but
23. _______ the film was very interesting, I left in the middle.
A. But B. Although C. However D. Or
24. Governments have ________ laws to protect wildlife from over
hunting.
A. enacted B. enforced C. required D. prohibited
25. Many plant and animal species are in danger of _________.
A. extinct B. extinction C. extinctive D. extincting
26. The Simpson Desert was named ________ the President of the South
Australian Branch of the Royal Geographical Society of Australia.
A. to B. as C. after D. in
27. These beautiful dresses _________ by my mother.
A. can make B. can be make C. can made D. can be made
28. I don’t ________ take the exam again.
A. need to B. have to C. need D. A&B
29. Deforestation is destroying large areas of tropical rain forest.
A. changing B. raising C. becoming D. damaging
30. Toxic chemicals from factories are for one of the serious factors that
leads wildlife to the _________ of extinction.
A. wall B. fence C. verge D. bridge
31. It’s a school rule, all the pupils _________ wear a uniform.

A. have to B. might C. must D. need
32. Before eating, _________ thoroughly with soap and clear water.
A. you should wash your hands B. your hands should be washing
C. you need washing your hand D. your hands need washed
33. The fire _________ by lightning.
A. must cause B. must be causing
C. must have caused D. must have been caused
34. According to present law, the authorities can be give poachers a
severe ________.
A. punish B. punishable C. punishment D. punishing
35. In 1989, a ban was given on all international trade in ivory.
A. action B. contamination C. destruction D. prohibition
36. People have hunted animals ________ food, hides, and ivory.
A. on B. for C. in D. with
37. John was not here yesterday. Perhaps he was ill.
A. John needn’t be here yesterday because he was ill
B. Because of his illness, John should have been here yesterday
C. John might have been ill yesterday, so he was not here.
D. John must have been ill yesterday, so he was not here.
38. This book is not really ________. It is a waste of money buying it.
A. inform B. information C. informative D. informatively
39. Sometimes it is ________ to find suitable books for our children.
A. difficult B. difficulty C. difficultly D. difficulties
40. ________ is the protection of environment and natural resources.
A. Survival B. Commerce C. Conservation D. Extinction
41. Chemical wastes from factories are _________ that cause serious
damage to species habitats.
A. pollutes B. pollutants C. pollutions D. polluters
42. Although we are aware _________ the importance of environment,
we still overexploit it

A. from B. on C. for D. of
43. A ________ is the story of a person’s life written by somebody else.
A. romance B. fiction C. biography D. science
44. It was such a great book that I couldn’t put it _________.
A. on B. off C. out D. down
45. Over 15,500 species (8,300 plant species and 7,200 animal species)
are now considered ________ risk ________ extinction.
A. at/ of B. on/ in C. for/ with D. in/ at
46. Biologists have introduced a global list of endangered and vulnerable
animal species.
A. rare and precious B. small but invaluable
C. weak and easily hurt D. strong and unusual
47. My sister was used to reading a novella before bedtime as she was
young.
A. a romance book B. a funny story C. a long story D. a short novel
IV. Rewrite each sentence, beginning as shown, so that the meaning
stays the same.
1. She couldn’t get to work because it was snowing.
 It was snowing ___________________________________________
2. Is it necessary for me to bring my umbrella?
Do I have _______________________________________________?
3. You are not allowed to cross the area.
 You mustn’t _____________________________________________.
4. Although I tried to persuade her, I didn’t succeed.
 I tried to persuade her, ____________________________________.
5. I can’t come to your wedding because I’m too busy.
 I’m too busy, ____________________________________________.
6. It wasn’t necessary for me to go to work yesterday.
 I didn’t ________________________________________________.
7. To use this telephone, insert a coin in this opening.

 To use this telephone, a coin should _________________________.
8. Children must not play football in the street. It’s dangerous.
 Football _________________________________. It’s dangerous.
9. The secretary will have to send these letters urgently.
 These letters ___________________________________________.
10. He is intelligent. He can’t answer this question, however.
 Although _______________________________________________.
11. You are not allowed to drive on the right in England.
 You mustn’t __________________________________________________.
12. There’s no need for you to clean the house again.
You don’t _______________________________________________.
13. He tried his best, but he didn’t succeed in finding a good job.
 Although _______________________________________________.
14. It wasn’t necessary for John to book a table in advance.
 John didn’t _____________________________________________.
15. It’s possible Mary didn’t remember the appointment.
 Mary __________________________________________________.