2011年6月英语四级全真预测试卷及答案详解(3)_第5页

　　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] on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on Answer Sheet 2 with a single line through the center.

　　An adult giraffe's head is about six feet above its heart. This means that to 67 enough blood up to the brain the circulatory 68 must be strong enough to keep the blood at very high pressure.

　　Biologists have known for some time that giraffes solve this problem by having 69 high blood pressure, about 70 that of human beings. But an international team of biologists began to 71 about this. If giraffes have such high blood pressure, they should have a 72 problem with swelling in their legs and feet. Why don't giraffes have swollen feet?

　　Giraffes should have 73 problem, too. Every time they bend heads 74 to drink, the blood should 75 to their heads and have a hard time 76 back up (when the head is down) to the heart. How come giraffes don't black out when they drink?

　　The answer to the 77 feet problem, the researchers found, is that giraffes have 78 the researchers call a "natural anti-gravity suit". It 79 out that the skin and other 80 in their legs and feet are 81 stiffer and tougher than those of other 82 . As a result, the blood vessels in the leg cannot swell.

　　Therefore, the blood has nowhere to go but back to the heart. What about blood rushing to the head 83 the giraffe bends down to drink? The researchers found that the giraffe's jugular vein, which 84 blood from the head back to the heart, has lots of one-way valves in it. In the giraffe's neck, there are lots of muscles that flex and relax repeatedly as the animal moves its head and sucks 85 drinking water. By squeezing the valved jugular vein, they 86 blood moving back to the heart even while the animal is drinking.

　　67. [A] bring [B] produce [C] transfer [D] pump

　　68. [A] structure [B] system [C] function [D] organism

　　69. [A] unusually [B] generally [C] uncomfortably [D] commonly

　　70. [A] half [B] multiple [C] double [D] pair

　　71. [A] investigate [B] wonder [C] undertake [D] learn

　　72. [A] terrible [B] unreliable [C] unsolvable [D] advisable

　　73. [A] other [B] some [C] others [D] another

　　74. [A] up [B] down [C] toward [D] aside

　　75. [A] crush [B] brush [C] push [D] rush

　　76. [A] following [B] returning [C] plowing [D] pouring

　　77. [A] healthy [B] swollen [C] dreary [D] radical

　　78. [A] what [B] where [C] that [D] those

　　79. [A] reveals [B] indicates [C] figures [D] turns

　　80. [A] tissues [B] vessels [C] pores [D] organs

　　81. [A] many [B] very [C] much [D] less

　　82. [A] giraffes [B] animals [C] people [D] creatures

　　83. [A] whenever [B] whatever [C] however [D] wherever

　　84. [A] reflects [B] releases [C] receives [D] carries

　　85. [A] in [B] up [C] to [D] from

　　86. [A] permit [B] prevent [C] retain [D] keep

　　Part VI Translation (5 minutes)

　　Directions: Complete the sentences on Answer Sheet 2 by translating into English the Chinese given in brackets.

　　87. Living in the desert has many problems, ________________________(缺水并不是惟一的问题).

　　88. The production ________________________ (增加到每月500吨)by the end of this month.

　　89. Some children put much emphasis ________________________(有足够的钱以便到外面去痛快享受).

　　90. Please ________________________(不要忘记让你姐姐到超市买一些牛排).

　　91. The students now ________________________ (宁愿上网，也不愿意到图书馆去看书).

2010年6月大学英语四级考试全真预测试卷三答案详解

　　Part I Writing

　　Dear Mark,

　　You will never guess what I am going to tell you in this letter. I have received the letter of admission from Harvard University. This means I am going to do my doctor degree program this fall in America. After years of hard work, I know have finally realized my dream of being able to work in the most advanced laboratory in the world with the most outstanding top scientists in the field of genetic engineering.

　　I am now very busy preparing for this trip of utmost importance in my life. I spend most of my time improving my oral and aural English. You know I have a good command of written English. In fact, I have written my papers in English, some of which have been published abroad already. But my listening and speaking ability of English is far behind. I am afraid that this poor command of listening and speaking will hinder the effective communication once I am abroad. Can you just suggest any good way of improving my oral English skills quickly? I am a bit anxious recently.

　　Anyway, I will try my best.

　　Hope to hear from you soon!

　　Yours,

　　Li Ming

　　Part II Reading Comprehension (Skimming and Scanning)

　　1. N 本题考察文章的大意，可在做完后面9题后再解答。本文主要介绍有关 robot races 比赛的情况，而不是比赛的优点和缺点，故题干表述错误。

　　2. N 由原文第二段首句可知，most robots barely managed to get off the starting line，这就说明比赛并不算成功，故题干表述错误。

　　3. N 根据题干中的信息词 this year's race 和 the Grand Challenge 定位原文第四段 No surprise, then, that 43 teams... 可知题干表述错误。

　　4. Y 根据题干中的信息词 The Pentagon's Defense Advanced Research Projects Agency (DARPA) 定位原文，可知题干表述正确。

　　5. Y 根据题干中的信息词 the aim of the Grand Challenge 定位原文，发现答案在小标题 Unknown Course 下第一段，可知题干表述正确。

　　6. N 小标题 Smart Money 下第一段明确指出 Neither Ghostrider nor It Came From the Garage made the final cut at this week's qualifying races，可知题干是错误的。

　　7. NG 问中并未提及谁最终获得得了大奖。

　　8. rugged, real-life conditions。本题内容是关于跑道(course)上设置的障碍物(obstacles)的，可推知答案在小标题 Unknown Course 下，其中第五段给出了答案。

　　9. Ghostrider。答案在小标题 Ghostrider 下第四段。预读题干发现 only 这种绝对化表达，在阅读文章时要格外留意。

　　10. Stanley。答案在全文倒数第三段末句。此题仍然考查了 only这种绝对化表达。