[外语类试卷]大学英语四级改革适用(阅读)模拟试卷307及答案与解析.doc
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1、大学英语四级改革适用(阅读)模拟试卷 307及答案与解析 Section A 0 Hungry prehistoric hunters, not climate change, drove elephants to extinction during the Pleistocene era (更新世 ), new research suggests. At least 12 kinds of elephants【 C1】 _to wander about the African, Eurasian, and American continents. Today, only two【 C2】 _
2、of elephants are left in South Asia and Africa. One theory for this dramatic death holds that rapid climate shifts at the end of the most recent major ice age, some 10,000 years ago,【 C3】 _vegetation and broke up habitats (栖息地 ), causing the death of those unable to adapt to the new conditions. Anot
3、her【 C4】 _blames prehistoric humans, whose improved weapons and hunting techniques allowed them to wipe out whole herds of elephants. To help【 C5】 _the debate, archaeologist Todd Surovell of the University of Wyoming, and colleagues tested two assumptions. If humans caused the elephant extinction, S
4、urovell reasoned, the timing of the die-off in【 C6】 _regions should match human expansion into those regions. On the contrary, if the extinction was【 C7】_to climate change, elephants should remain in regions【 C8】 _colonized by humans and would only begin to die off once climate change occurred. The
5、team tested both theories by analyzing where and when elephants were killed. In all, the study included 41 archaeological sites on five continents. The researchers found that, as humans【 C9】 _out of Africa, they left a trail of dead elephants behind them. The creatures disappear from the fossil reco
6、rd of a region once it became colonized by humans. Modern elephants survived in rerfuges【 C10】 _to humans, such as tropical forests, says Surovell. A. uninviting B. migrated C. declined D. due E. memorial F. specific G. already H. casually I. hypothesis J. endurance K. resolve L. polish M. altered N
7、. used O. species 1 【 C1】 2 【 C2】 3 【 C3】 4 【 C4】 5 【 C5】 6 【 C6】 7 【 C7】 8 【 C8】 9 【 C9】 10 【 C10】 10 Better think twice before choosing a password for emails, online bank accounts and airline tickets. Passwords that show no imagination or【 C1】 _are easy(捕获物 ) for information pirates (劫掠者 ), a new
8、US study says. A(n)【 C2】 _analysis of 28,000 passwords recently stolen from a popular US website and posted on the Internet【 C3】 _that people often do the easy thing. It found that 16 percent took a first name as a password,【 C4】 _their own or one of their childrens, according to the study published
9、 by Information Week. Another 14 percent relied on the easiest keyboard【 C5】 _to remember such as “1234“ or “12345678.“ For those using English keyboards, “QWERTY“, was popular. Likewise, “AZERTY“【 C6】 _with people with European keyboards. Five percent of the stolen passwords were names of televisio
10、n shows or stars popular with young people like “hannah,“【 C7】 _by singer Hannah Montana. “Pokemon,“ “Matrix,“ and “Ironman“ were others. The word “password,“ or easy to guess variations like “passwordl,“ accounted for four percent. Three percent of the passwords expressed【 C8】 _like “I dont care,“
11、“Whatever,“ “Yes“ or “No.“ There were【 C9】 _choices “Iloveyou“ and their opposite “Ihateyou.“ Robert Graham, of the company Errata Security, which did the analysis and published the conclusions, advises that to better protect against cyber【 C10】 _: “choose a password that is longer than eight charac
12、ters with one capital letter and one symbol.“ A. invasion B. critical C. combinations D. attitudes E. furnished F. uniqueness G. reveals H. scored I. generally J. liberates K. emotional L. statistical M. conversely N. principle O. inspired 11 【 C1】 12 【 C2】 13 【 C3】 14 【 C4】 15 【 C5】 16 【 C6】 17 【 C
13、7】 18 【 C8】 19 【 C9】 20 【 C10】 20 The French division of McDonalds has run advertisements that included a surprising【 C1】 _: Kids shouldnt eat at McDonalds more than once a week. The advertisements,【 C2】 _information from specialists, aim to show that “McDonalds meals are part of a balanced weekly d
14、iet,“ said Euro RSCG, the agency that came up with the ads, which appeared this spring, mostly in French womens magazines. Alongside quotes from specialists addressing【 C3】 _and diets for children, the ads described how McDonalds hamburgers are made of 100 percent real beef and cooked on a grill fre
15、e of【 C4】 _oil. One ad placed in Femme Actuelle in April quoted a nutritionist who said, “theres no reason to【 C5】 _fast food, or visit McDonalds more than once a week“ The McDonalds Corp., based in Oak Brook, Ill., said in a statement Wednesday that it “strongly【 C6】 _“ with the nutritionist quoted
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