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1、完形填空专项练习：1A "dark horse "is one that shows unexpected racing speed and comes in first, 1 the experts said he had little chance of winning. In politics, an 2 candidate (候选人) for office who 3 a nomination(提名)or election is called a "dark horse". British Prime Minister Benjamin Disr
2、ael is believed to 4 the first to use the phrase. In his novel, "The Young Duke ", published in 1831, Disrael described a horse race and told how the two top choices fell 5 ,while "a dark horse "which had never been thought of rushing past the grandstand (看台)in a sweeping triumph
3、. From racing to politics was a short step. As a political phrase, “dark horse ” 6 for the first time in the national Democratic Party congress of 1844. The "dark horse" was James Knox Polk who became the llth President of the United States. Polk had been the leader of the House of Represe
4、ntatives from 1835 to 1839. He had 7 been Governor of the state of Tennessee. But as a national leader, he was considered a political 8 . Nevertheless, he 9 won the Democratic nomination and was elected 10 .Martin Van Buren of New York, A former President, seemed sure of getting the nomination. But
5、he opposed making the territory of Texas part of the United States as mother state. He was 11 it because there was slavery in Texas. Van Buren did not want another slave state in the Union. As a result, he 12 support among those Democrats who supported slavery. At the 1884 congress, Van Buren could
6、not get enough votes to win the nomination. The congress got into 13 . Therefore, the Democratic leaders decided that the only wise thing would be to run a "dark horse ", 14 who could unite the party. And so, one of the party leaders, George Bancroft, proposed the name of James Knox Polk.
7、He won, and the party 15 behind him, And he defeated his opponent , Henry Clay of the Whig Party. 16 the 1844 congress, the "dark horse "candidates became an established fact of national political life. One historian said, "The invention of the dark horse was 17 a remarkable product o
8、f our professional politics. "This made 18 possible for party leaders to choose candidates who were not tied to certain ideas. Therefore, they represented 19 and had developed 20 enemies.1. A. so B. even though C. so that D. as if2. A. unknown B. famous C. popular D. known3. A. accepts B. looks
9、 forward to C. refuses D. wins4. A. be B. being C. been D. have been5. A. about B. behind C. asleep D. back6. A. happened B. appeared C. used D. was come about7. A. as well B. either C. also D. too8. A. somebody B. everybody C. anybody D. nobody9. A. difficultly B. successfully C. surprisingly D. ea
10、sily10. A. President B. a President C. the President D. the governor11. A. for B. against C. in favor of D. in favor with12. A. won B. received C. lost D. wasted13. A. votes B. help C. efforts D. money14. A. a horse B. a man C. an animal D. an organization15. A. laughed B. succeeded C. won D. united
11、16. A. After B. Since C. Before D. Because17. A. in itself B. of itself C. for itself D. by itself18. A. one B. it C. that D. this19. A. anything B. nothing C. something D. everything20. A. quite a few B. a lot of C. few D. little2It is an usual sunny afternoon in the village of Midwich, England. It
12、 seems not 1 any afternoon in the village, but all of a sudden, 2 and animals lose consciousness. 3 they awake, all of the women of child-bearing age have become pregnant (怀孕的). This is an episode from a 1960 science fiction story. The women in the story 4 birth to children that have the 5 appearanc
13、e. They 6 have blond hair and “strange eyes”. 7 the children grow, they run around the village in a pack, 8 the same clothing and hairstyles, stating at everyone 9 . 10 one child learns is also known by the others immediately. Villagers begin to 11 their belief that the children all have "one m
14、ind." In this story, the children are 12 by some unexplained force from outer space. But this story 13 40 years ago 14 predicted the arrival of a recent method of genetic engineering cloning. Cloning is the genetic process of producing copies of an individual. Will the genetic copies of a human
15、 really have "one mind" as 15 in this story? This situation is so strange 16 us that we do not know what will 17 of it. 18 with this new situation, people have 19 to find out how to 20 it.1. A. dislike B. unlike C. alike D. like2. A. people B. women C. men D. youths3. A. Then B. When C. Si
16、nce D. And4. A. send B. make C. take D. give5. A. pretty B. same C. ugly D. funny6. A. every B. both C. themselves D. all7. A. If B. For C. As D. So8. A. having on B. wearing C. in D. with9. A. lonely B. bravely C. impolitely D. patiently10. A. Which B. While C. Where D. What11. A. express B. wonder
17、 C. select D. argue12. A. given B. produced C. created D. taken out13. A. written B. being written C. to be written D. writes14. A. sometimes B. anyway C. somehow D. anyhow15. A. describes B. described C. describe D. describing16. A. for B. at C. with D. to17. A. happen B. occur C. appear D. become1
18、8. A. Faced B. Compared C. Covered D. Filled19. A. not B. yet C. till D. though20. A. do with B. deal with C. make D. settle3Workers aren't allowed to go into a huge underground computer center 1 they step up to a machine that 2 a quick picture of the tiny blood vessels(管) inside their eyes. If
19、the machine can't 3 the picture with images in its computer, the worker is 4 by security (安全) guards. Each person has his own pattern of blood vessels in his or her eyes. And unlike a key, the pattern can't be 5 . Old -fashioned keys and locks may soon be things of the past. High-tech securi
20、ty devices(装置) are being 6 at military bases, computer centers, nuclear plants and banks. Companies that 7 the machines say they'll someday be used in people's homes and cars. Already, a Japanese firm has fixed devices that 8 people's fingerprints in 360 new homes. The machines open the
21、doors only for the 9 of the houses. The new security devices are selling well because thieves and spies are getting better at breaking 10 buildings and computers that are protected by 11. Since 12 can steal or copy a fingerprint or eye pattern, the new machines are 13 . 14 new machines recognize voi
22、ce patterns. Two American companies use voice-recognition machines to keep an eye on their computers. Inexpensive voice-recognition machines may someday 15 locks on cars. The doors would open only for the owners. The devices would 16 the owners 17 $ 270. Although the up-to-date devices are 18 , scie
23、ntists must still solve a(n) 19 problem. How wi11 a boy borrow his dad's car without borrowing dad's 20 ?1. A. if B. even if C. until D. after2. A. take B. give C. draw D. show3. A. match B. fit C. compare D. share4. A. caught B. killed C. beaten D. stopped5. A. borrowed B. missed C. stolen
24、D. bought6. A. fixed B. dealt with C. repaired D. checked7. A. buy B. sell C. make D. copy8. A. remember B. store C. count D. recognize9. A. makers B. buyers C. sellers D. owners10. A. through B. in C. into D. out11. A. computers B. security devices C. cameras D. keys and locks12. A. nobody B. every
25、body C. anybody D. somebody13. A. safe B. unusual C. helpful D. useful14. A. Other B. Another C. More D. Others15. A. take place of B. replace C. take place D. place back16. A. pay B. spend C. take D. cost17. A. up to B. as few as C. as much as D. as little as18. A. amazing B. cheap C. expensive D.
26、surprising19. A. dangerous B. serious C. terrible D. ordinary20. A. face B. picture C. fingers D. voice4Every year, almost 2 million Americans are injured while they're 1 work. Every day, 240 are killed on the job. The 2 job is cutting down trees. Being a policeman is safer than many jobs, inclu
27、ding driving a truck, collecting garbage and 3 airplanes. One of the safest jobs is being a librarian. The government inspects(检查) most factories and offices. 4 have to 5 fines if their factories or offices are unsafe. In California, employers often go to prison if one of their workers is 6 because
28、a factory didn't 7 safety measures. But President Bush cut down the number of government inspectors 8 15 percent. Many people say working is less safe 9 . For women workers, the greatest danger so far is murder. Forty-two percent of all 10 who die at work were killed. Many of them work 11 clerks
29、 in stores 12 they are by themselves at night. Experts say they can protect themselves by putting the cash desk in full 13 of the street. The numbers of deaths and accidents at work don't take into 14 people who become sick from 15 that they are exposed to at work. Doctors don't know 16 some
30、 chemicals cause illness. There are no government rules for many new chemicals. Inspectors say employers 17 their backs on safety problems because they don't want to pay the bill for fixing them. They also say some workers don't want to complain about dangers because they may 18 their jobs.
31、The government should force business to improve safety. There's no 19 for workers dying or 20 in an accident that could have been prevented.1. A. in B. at C. on D. during2. A. safest B. most dangerous C. easiest D. most tiring3. A. flying B. making C. driving D. riding4. A. Officers B. Workers C
32、. Employers D. Employees5. A. give B. offer C. pay D. buy6. A. saved B. hit C. shot D. killed7. A. use B. make C. obey D. take8. A. to B. by C. from D. at9. A. as a result B. though C. at last D. therefore10. A. adults B. youths C. men D. women11. A. for B. as C. like D. to12. A. which B. that C. wh
33、ere D. why13. A. view B. look C. scene D. scenery14. A. thought B. mind C. thinking D. consideration15. A. machines B. chemicals C. air D. work16. A. because B. when C. if D. even if17. A. give B. turn C. show D. refuse18. A. lose B. miss C. give up D. save19. A. need B. reason C. time D. excuse20.
34、A. injuring B. being injured C. be injuring D. be injured5How do you draw the interest of a 4,500 kilogram elephant? You hit the elephant with a big I , according to a zoo director in California. But is that a 2 way to treat the big, friendly animals? How zoos treat their elephants has led to a scie
35、ntific 3 . Some scientists complain that zoos use 4 force to train the huge animals and get them 5 control. There are about 400 elephants in North American zoos, and wild animal parks. The 6 animals with their big trunks and ears and tusks delight children and 7 smiles from adults. 8 hasn't 9 wh
36、en an elephant has picked up a peanut quickly with its trunk from a trainer? But elephants aren't in zoos just for entertainment. Elephants are 10 in Asia and Africa, and being raised in American zoos may be 11 to keep them 12. Elephants are different from most other zoo animals because they mus
37、t be in touch with humans who take care of their feet, and 13 an elephant wants to be dominant(支配的). An elephant wants to control the 14 , not on the contrary. Elephant keepers must make the animals obey them 15 they may be attacked by the elephants. But some scientists are 16 that keepers are using
38、 too much 17 and are injuring elephants. Several zoos have recently been looked into 18 people said elephants were beaten with heavy sticks. Scientists are 19 zoos how to make elephants behave without 20 them. If they succeed, children will be entertained by elephants for many more generations.1. A.
39、 sword B. knife C. whip D. stick2. A. cruel B. kind C. surprising D. funny3. A. research B. discussion C. argument D. quarrel4. A. very much B. too much C. much too D. enough5. A. under B. in C. out of D. to6. A. stupid B. heavy C. cruel D. fast7. A. draw B. give C. show D. turn8. A. Anyone B. Whoever C. Anyone who D. Who9. A. attracted B. smiled C. be happy D. caught10. A. dying B. scarce C. short D. small11. A. important B. necessary C. impossible D. improper12. A. lively B. living C. lovely D. alive13. A. that B. because C