大学英语四级考试试题及答案解析三十九.docx

1、大学英语四级考试试题及答案解析三十九大学英语四级考试试题及答案解析(三十九)一、Writing （本大题1小题每题106.0分，共106.0分。 For this part, you are allowed thirty minutes to write a composition . You should write at least 100 words, and base your composition on the outline (given in Chinese) below: ）第1题 Directions: For this part, you are allowed 30 m

2、inutes to write a short essay entitled On Reacting to Disastrous Events. You should write at least 120 words following the outline given below.1人总会碰到一些灾难 2有人走不出灾难的阴影 3你如果遇到灾难会怎么做On Reacting to Disastrous Events【正确答案】：On Reacting to Disastrous Events1One time or another,one might encounter disastrous

3、 events such as earthquakes,snow-storms,and traffic accidents.2Serious disasters claim lives and cause heavy losses,and can leave lasting effects on ones minds. 3How should we react to disasters?4First I think it is reasonable to accept them.5No one expects disasters,but if they come,they are there,

4、and we must accept them as they are.In this way it might become easier for US to recover from the shock they bring to us.6Second,Ill concentrate on what I can do to relieve the bad effect of the disaster.7We cannot undo what is done,but we can make things a little better with our efforts.8Besides,co

5、ncentrating on what we can do helps US forget the huge pains we feel about the disaster本题分数： 106.0 分 【答案解析】1紧扣提纲中的第1点，说明灾难的普遍性。注意用例子说明什么是disaster。 2灾难的影响，对应提纲中的第2点。 3用特殊疑问句引出文章的主题，是常用写作技巧。对应提纲中的第3点。 46First，Second引出两种应对办法。心理上接受事实，行动上做力所能及的事以减轻灾难造成的负面影响。 5是4的扩展句，说明4的合理性。 78是6的扩展句，说明6的合理性。 写作指南 本文重点应该

6、落在题目“应对灾难”上，重点写“如何应对”。提纲的1，2两点可以简略介绍，一笔带过。第3点是重点，要详细说明。 考生是否考虑过“应对灾难”的话题呢?碰到这个话题，要如何解答? 范文从心理上和行动上给出应对办法，是展开思路的好办法。这样的题目不仅考查英语写作能力，也考查我们对新鲜话题的应变能力。只有平时多积累素材、多练习，才能庖丁解牛，游刃有余。否则，语言能力再好也会成为“无米之炊”，写不出好文章来。二、Cloze（共20小题,共70.0分）There are 20 blanks in the following passage. For each blank there are four ch

7、oices 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 centre. 第1题 Did Grandma seem forgetful at the holiday parties last month? It could be time to put

8、her on a diet. Sharply(1) calories(卡路里) improves memory in older adults,according to a new study. Research on the benefits of an extremely low-calorie diet(2) back to the 1930s, when scientists found that rats lived(3) to twice as long when they ate less than control animals. And how about in human?

9、 To fill that(4) , scientist Agnesand her colleagues at the University of Muenster(5) 50 healthy elderly subjects. The(6) volunteer was 60 years old and overweight. The researchers(7) assigned the volunteers to one of three groups. Twenty people were instructed to reduce their daily calorie(8) by 30

10、%, while still eating a(9) diet. Another 20 were told to keep their calorie intake the same but increase their(10) ofunsaturated(不饱和的 ) fatty acids. The(11) 10 volunteers did not change their diets. After 3 months, all of the volunteers (12) a memory test in which they were shown 15 words and asked

11、how many they could remember after 30 minutes.(13) average,those in the calorie-restriction group showed a 20%(14) over their baseline memory scores taken before they started their diets. Subjects in the other two groups showed(15) or no improvement. Our study(16) provides some of the first(17) on t

12、he impact of calorie restriction on memory in the elderly, but this study has to be(18) up now, Floel noted. Her team plans to(19) larger studies to determine exactly(20) calorie restriction enhances memory.AreducingBdecliningCburningDincreasing【正确答案】：A【本题分数】：3.5分【答案解析】考查动词辨义。根据上一句提到的on a diet“节食”，可

13、推断此处应选择含有“减少”含义的词，A和B都含有“减少”的意思，但decline指“谢绝；衰退”，不合句意，故选A。第2题 AfetchesBswellsClengthensDstretches【正确答案】：D【本题分数】：3.5分【答案解析】考查动词辨义及短语识别。空格后的内容为时间，因而选用stretch“延续；伸展”。fetch后接具体事物；swell指体积膨胀；lengthen后接具体长度。第3题 AupBunderCforDsince【正确答案】：A【本题分数】：3.5分【答案解析】考查短语识别。up to表示“多达”，符合句意。其他选项不与to搭配。第4题 AvanityBvaca

14、ncyCvacationDposition【正确答案】：B【本题分数】：3.5分【答案解析】考查名词辨义。根据上一句的提问，可推断该研究还没有在人类身上进行过，fill that vacancy表示“填补空白”，故B正确。A“自负；虚荣心”，C“假期”和D“位置”均不合句意。第5题 AregisteredBhiredCrecruitedDenrolled【正确答案】：C【本题分数】：3.5分【答案解析】考查动词辨义。该空所在句的subjects指“对象”，即科学家“招收”的实验对象，recruit表示“招收”，符合句意。register指“登记，注册”；hire指“招聘”，多用于工作方面；en

15、roll指“入学；招纳新成员”，而此处只是招收研究对象，不是招收新的科学家，故不选。第6题 AtallestByoungestCaverageDoldest【正确答案】：C【本题分数】：3.5分【答案解析】考查语义逻辑。文章并没有将这些实验对象分别比较，这里只是指一个平均数值，应选C。第7题 ApurposefullyBbasicallyCrandomlyDaccordingly【正确答案】：C【本题分数】：3.5分【答案解析】考查语义逻辑。由于这是一项实验研究，故为保证实验合理、科学，理应将研究对象随机分组，因而“随机”更符合逻辑，故选C。purposefully“有目的地；蓄意地”，basically“基本地；从根本上说”，accordingly“照着；相应地”。第8题 AinduceBinsertCinputDintake【正确答案】：D【本题分数】：3.5分【