[外语类试卷]大学英语四级(完形)练习试卷2及答案与解析.doc
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1、大学英语四级(完形)练习试卷 2及答案与解析 一、 Part V Cloze (15 minutes) Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the ONE that best fits into the passage. 0 Mars is not, it seems, the dry old planet we once believed it to be.
2、Astronauts who are【 C1】 _to go there in the next decade may find plenty【 C2】 _water to slake(消除 )their thirst. And with water present the【 C3】 _of finding some sort of life on Mars are【 C4】 _brighter. This is the view of 40【 C5】 _all over the world who have been analyzing【 C6】 _of pictures and other
3、 scientific【 C7】 _obtained by robot explorers in the sixties and seventies. To begin with, scientists thought the Red Planet was as【 C8】 _as the Moon with dust storms swirling over vast sandy【 C9】 _. But now the picture is very different with mountains and valleys carved by【 C10】 _glaciers and torre
4、ntial rivers rushing and rumbling deep underground. In a report on the【 C11】 _of the Martian pictures Dr. Michael Car of the U.S. Geological Survey comments, “I am【 C12】 _theres lots of water on Mars.“ Any surface water will be in the【 C13】 _of ice. But it could【 C14】 _explorers having to take so mu
5、ch fresh【 C15】 _with them. The report says【 C16】 _Mars probably had a warmer climate in ages【 C17】_due to its axis having been more steeply tilted towards the Sun. 【 C18】 _convincing signs of plant or animal life have been【 C19】 _by instruments soft. landed on Mars,【 C20】 _only the immediate vicinit
6、y of landing vehicles could be examined. 1 【 C1】 ( A) expected ( B) hoped ( C) required ( D) eager 2 【 C2】 ( A) to ( B) of ( C) more ( D) in 3 【 C3】 ( A) chances ( B) openings ( C) occasions ( D) opportunities 4 【 C4】 ( A) quite ( B) very ( C) much ( D) more 5 【 C5】 ( A) biologists ( B) geologists (
7、 C) sociologists ( D) psychologists 6 【 C6】 ( A) lots ( B) quantifies ( C) thousand ( D) thousands 7 【 C7】 ( A) tidings ( B) news ( C) intelligence ( D) information 8 【 C8】 ( A) peaceful ( B) quiet ( C) lifeless ( D) dead 9 【 C9】 ( A) deserts ( B) mountains ( C) seas ( D) rivers 10 【 C10】 ( A) energ
8、etic ( B) great ( C) massive ( D) mighty 11 【 C11】 ( A) diagnosis ( B) syntheses ( C) analysis ( D) analyses 12 【 C12】 ( A) convinced ( B) guaranteed ( C) believed ( D) proved 13 【 C13】 ( A) appearance ( B) mould ( C) form ( D) shape 14 【 C14】 ( A) help ( B) save ( C) carry ( D) prevent 15 【 C15】 (
9、A) water ( B) ice ( C) food ( D) vegetable 16 【 C16】 ( A) what ( B) if ( C) how ( D) that 17 【 C17】 ( A) pass ( B) past ( C) ago ( D) before 18 【 C18】 ( A) Not ( B) No ( C) Nor ( D) Never 19 【 C19】 ( A) detected ( B) touched ( C) seen ( D) felt 20 【 C20】 ( A) probably ( B) perhaps ( C) supposed ( D)
10、 although 20 The Internet has become a commonplace for us. While【 C1】 _the Internet, we should not【 C2】 _the alarm bells sounding in our ears, reminding us of keeping【 C3】 _for on-line crimes. Last year, the Melissa and Explore Zip virus caused chaos【 C4】 _the Internet. Last week the “I love you“ bu
11、g played havoc【 C5】 _the world. What will be the next? No one knows. Many on-line crimes are not so different to【 C6】 _seen in real world, the spreading of fake data, cheating and blackmail,【 C7】 _property rights infringements and privacy violations. But computer hackers also create new forms of cri
12、me【 C8】 _the Internet changes the world into a “global village“. With the【 C9】 _of e-business, on-line crimes could not only cause great damage to【 C10】 _, but could also threaten the【 C11】 _of national political, economic and cultural orders. The【 C12】 _legal system in most countries【 C13】 _weak wh
13、en dealing with on-line crimes,【 C14】 _to the sophisticated technology involved. For this reason, many countries are considering【 C15】 _Internet laws to curb on-line crimes. In China,【 C16】 _there are millions of Internet surfers, it is more important to formulate new laws and rules on network secur
14、ity than to【 C17】 _the existing ones. When drafting and【 C18】 _new laws, China should also【 C19】 _the relations between protecting network security【 C20】 _the sound development of Internet. 21 【 C1】 ( A) surfing ( B) operating ( C) reaching ( D) exploring 22 【 C2】 ( A) neglect ( B) overlook ( C) omi
15、t ( D) ignore 23 【 C3】 ( A) guard ( B) careful ( C) alert ( D) aware 24 【 C4】 ( A) in ( B) on ( C) inside ( D) with 25 【 C5】 ( A) over ( B) on ( C) across ( D) through 26 【 C6】 ( A) which ( B) that ( C) them ( D) those 27 【 C7】 ( A) intellectual ( B) intelligence ( C) knowledge ( D) cultural 28 【 C8
16、】 ( A) until ( B) before ( C) as ( D) alter 29 【 C9】 ( A) blossom ( B) gloom ( C) blooming ( D) booming 30 【 C10】 ( A) persons ( B) individuals ( C) country ( D) society 31 【 C11】 ( A) equality ( B) peace ( C) security ( D) safety 32 【 C12】 ( A) current ( B) todays ( C) nowadays ( D) contemporary 33
17、 【 C13】 ( A) proving ( B) proves ( C) prove ( D) proven 34 【 C14】 ( A) owe ( B) as ( C) thanks ( D) due 35 【 C15】 ( A) shaping ( B) founding ( C) formulating ( D) setting 36 【 C16】 ( A) that ( B) which ( C) where ( D) when 37 【 C17】 ( A) date ( B) accelerate ( C) upgrade ( D) update 38 【 C18】 ( A) i
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