Bài tập trắc nghiệm tiếng Anh lớp 12

wear to the wedding? 
	A	B	C	D
39. You had better to tell her the truth or she'll get angry with you. 
	A	B	C	D
40. Many superstitions and symbols are connected for Halloween. 
	A	B	C	D
Choose the item (A, B, C or D) that bes.t completes the following sentences.
One of the greatest advantages of robots is that they can work in situations that are dangerous or harmful for human workers. For example, the continuous smell of paint has a harmful effect on painters, but it doesn't "bother" a robot. Robots can work in nuclear power plants and in undersea research stations that might be dangerous for humans. Already, robots are working in the plastics industry and in chemical and industrial equipment industries. One of the most common uses of robots is still in automobile factories. They can do the heavy, unpleasant, or dangerous work. These kinds of industrial robots are not usually "mobile". The work they need to do is brought to them, like cars on an assembly line, for example. 
The robot industry is a big business. By the middle of the 1990s, Japan' led the world in robot production with more than 71,000 industrial robots at work. Both the United States and Japan, as well as other countries, continue to develop more advanced robots. Robots can now be made to perform more complex jobs. Robots can make decisions while they are working and learn from their mistakes. Robots can now see with TV camera "eyes." They can easily hear and can even speak using a voice made by a computer. But it is difficult to make a robot "understand." Thinking. and understanding are very human qualities. The robots of the future will probably be very complex. They will be able to perform many humanlike tasks. Robots and other technology will make the future a very interesting place!
41. We can infer from the passage that by the middle of the 1990s__________.
	A. only Japan had used robots in production 
	B. Japan and the USA were the only countries to use robots 
	C. some countries had used robots in industrial production 
	D. Japan led the world in production thanks to robots 
42. Which of the following are robots NOT be able to do? 
	A. To speak using a voice made by a computer 
	B. To think and understand 
	C. To make decisions at work 
	D. To learn from mistakes 
43. According to the passage, which of the following is NOT true about the robots of the future? 
	A. They will probably be very complicated.
	B. They will be able to do humanlike tasks. 
	C. They will contribute to making the future more interesting. 
	D. They will replace human workers in all kinds of work. 
44. Which of the following is closest in meaning to the word "bother" in the first paragraph? 
	A. cancel	B. change	C. upset	D. terminate
45. Which of the following can be the opposite of the word "mobile" in the first paragraph? 
	A. stationary 	B. movable	C. unthinkable 	D. repairable
Choose the word or phrase (A, B, C, or D) that best fits each space in the following passage. 
We know that there is no life on Mars. The Viking robot missions to the Red Planet proved that. The mission was (46)________to one man for the most part. Percival Lowell, a rich American businessman, suggested that Mars contained life. He was fascinated by Mars. He spent 23 years studying it. He was so (47)________involved in the search for Martian life that he built his own laboratory. It housed a huge telescope. At 7,000 feet (2.13km) (48)________sea level in a dry climate, it was a perfect site to view Mars. Lowell believed that he saw a network of lines (49)________Mars. He also thought that the lines were built by intelligent life. There was also the chance that water was on the planet. He drew many maps in his notebooks. His idea (50)________the public's attention. People soon believed that life on Mars could exist. 
46.	A. due 	B. because 	C. except 	D. instead 
47. 	A. deep 	B. deeply 	C. depth 	D. deepen 
48.	A. on 	B. over 	C. above 	D. up 
49.	A. cross 	B. crossing 	C. to cross 	D. crossed 
50.	A. made 	B. achieved 	C. absorbed 	D. drew 
------THE END------
UNIT 9: DESERTS
Choose the word whose underlined part is pronounced differently from that of the others:
1.	A. circle	B. center	C. census	D. cancel
2.	A. area	B. arise	C. arrange	D. arrive
3. 	A. dessert	B. desert	C. deserve	D. prefer
4.	A. roughly	B. tough	C. enough	D. though
5.	A. gently	B. germ	C. gear	D. gene
Choose the word or phrase (A, B, C or D) that best completes each of the following sentence. 
6. They made an aerial survey; that is, they made a survey_________.
	A. by ship 	B. by plane 	C. on foot 	D. by telescope 
7. Hummock grasses grow in loose sand on the crest. 
	A.side 	B. bottom 	C. top 	D. inside 
8. Eight kilometers is_________ equivalent to five miles. 
	A. exactly 	B. roughly 	C. rarely 	D. precisely
9. Older people_________ a large proportion of those living in poverty. 
	A. comprise 	B. consist 	C. compose	D. compound 
10. She has the windows open, _________it is cold outside. 
	A. however 	B. therefore 	C. athough 	D. so 
11. There is still much to discuss. We shall, _________, return to this item at our next meeting. 
	A. therefore 	B. moreover 	C. although 	D. so that 
12. The sea was dangerous, _________we didn't go out for a swim. 
	A. since 	B. but 	C. so 	D. as 
13. The new trains have more powerful engines and are; _________, faster. 
	A. therefore 	B. however 	C. nevertheless 	D. nonetheless 
14. It was cold and wet. _________, Paul put on his swimming suit and went to the beach. 
	A. Although 	B. Therefore	C. However 	D. Because 
15. I had no choice_________sign the contract. 
	A. despite 	B. but 	C. without 	D. unless
16. You can dress_________you like. 
	A. whatever 	B. therefore 	C. however 	D. nevertheless 
17. _________hard he tried, he couldn't open the door. 
	A. Therefore 	B. However 	C. Although 	D. Despite 
18. We took a map with us_________. 
	A. so that we would get lost 	B. so that we wouldn't get lost 
	C. so that we won't get lost 	D. in order to get lost 
19. We'll buy everything you produce_________it’s reasonable. 
	A. provided 	B. so 	C. only 	D. except
20. Sunglasses come_________many different colors, shapes, and strengths. 
	A. with 	B. from	C. by	D. in
21. You are expected_________the safety regulations of the school. 
	A. know 	B. to know 	C. knowing 	D. being known 
22. _________ his father, he is a biologist. 
	A. Like 	B. Alike 	C. The same	D. As 
23. Everyone_________happy at the last meeting. 
	A. are 	B. were 	C. was 	D. is 
24. Did you paint it yourself or did you_________ it painted? 
	A. make 	B. do 	C. have 	D. ask 
25. We_________drive fast; we have plenty of time. 
	A. can't 	B. needn't 	C. mustn't 	D. oughtn't 
26. If you_________there what would you have done?, 
	A. were 	B. had been 	C. would be 	D. would have been 
27. They'll be able to walk across the river_________. 
	A. if the ice will be thick enough 	B. unless the ice is thick enough 
	C. if the ice is thick enough 	D. when the ice will be thick enough 
28. Please call if you're going to arrive_________. 
	A. as late 	B. late 	C. lately 	D. later than 
29. Nobody knew that Uncle Ben was coming to see us. He arrived_________. 
	A. unexpecting	B. unexpected 	C. unexpectedly 	D. expectantly 
30. 'He is back already.' 'He_________very early.' 
	A. should have started 	B. must have started 
	C. shouldn't have started 	D. can't have started 
31. We expected that our team_________, but it didn't. 
	A. will win the game 	B. can win the game 
	C. would win the game 	D. will be winning the game 
32. You can see the details_________the computer screen. 
	A. in 	B. on 	C. at 	D. by 
33. Don't walk too fast. I can't keep_________you. 
	A. on to 	B. on with 	C. up to 	D. up with 
34. Rita is not used _________on her own. 
	A. for living 	B. to live 	C. with living 	D. to living 
35. He bought a ticket_________. 
	A. and his brother did either 	B. but his brother didn't, too 
	C. and so his brother bought 	D. and so did his brother 
Choose the underlined part in each sentence that needs correcting: 
36. A study of the difference between synthetic and natural vitamins are needed.
	A	B	C	 D
37. You must take quickly the test in order to finish in time.
	A	B	C	D
38. Most vacationers can't stand traveling in packed cars or stay in dirty hotel rooms. 
	A	B	C	 D
39. That's the best exhibition I've never seen. 
	A	B	C	D
40. Jack is looking for another job for he says he is really fed up of doing the same thing every day. 
	A	B	C	D
Read and choose the letter (A, B, C or D) that best completes the tasks that follow: 
The size and location of the world's deserts are always changing. 
Over millions of years, as climates change and mountains rise, new dry and wet areas develop. But within the last 100 years, deserts have been growing at a frightening speed. This is partly because of natural changes, but the greatest desert makers are humans. 
In developing countries, 90 percent of the people use wood for cooking and heating. They cut down trees for firewood. But trees are important. They cool the land under them and keep the sun off the smaller plants. When leaves fall from a tree, they make the land richer. When the trees are gone, the smaller plants die, and there is nothing but sand. Yet people must use firewood, raise animals, and grow crops in order to live. 
Humans can make deserts, but humans can also prevent their growth. 
Algeria planted a green wall of trees across the edge of the Sahara to stop the desert sand from spreading. Mauritania planted a similar wall around Nouakchott, the capital. Iran puts a thin covering of petroleum on sandy areas and plants trees. The oil keeps the water and small in the land, and men on motorcycles keep the sheep and goats away. Other countries build long canals to bring water to desert areas. 
Yet land that will probably become desert in the future equals the