大学英语四级真题部分的答案解析.docx

1、大学英语四级真题部分的答案解析大学英语四级真题部分的答案解析Questions 47 to 56 are based on the following passage.When we think of green buildings, we tend to think of new ones the kind of high-tech, solar-paneled masterpieces that make the covers of architecture magazines. But the U.S. has more than 100 million existing homes,

2、and it would be 47. G） incredibly wasteful to tear them all down and 48. K） replace them with greener versions. An enormous amount of energy and resources went into the construction of those houses. And it would take an average of 65 years for the 49. J） reduced carbon emissions from a new energy-ef

3、ficient home to make up for the resources lost by destroying an old one. So in the broadest 50. L） sense, the greenest home is the one that has already been built. But at the same time, nearly half of U. S. carbon emissions come from heating, cooling and 51. H） powering our homes, offices and other

4、buildings. You cant deal with climate change without dealing with existing buildings, says Richard Moe, the president of the National Trust.With some 52. D） exceptions, the oldest homes tend to be the least energy-efficient. Houses built before 1939 use about 50% more energy per square foot than tho

5、se built after 2000, mainly due to the tiny cracks and gaps that 53. E） expand over time and let in more outside air.Fortunately, there are a 54. O） vast number of relatively simple changes that can green older homes, from 55. F） historic ones like Lincolns Cottage to your own postwar home. And effi

6、ciency upgrades (升级) can save more than just the earth; they can help 56. I） protect property owners from rising power costs.注意：此部分试题请在答题卡2上作答。A) accommodations B) clumsy C) doubtful D) exceptions E) expand F) historic G) incredibly H) powering I) protect J) reduced K) replace L) sense M) shifted N)

7、 supplying O) vast2011年6月大学英语四级真题Questions 47 to 56 are based on the following passage.The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.While elderly people 47 N） tend to sleep for fewer hours than they did when they were younger, this has

8、 a(n) 48 L） negative effect on their brains performance and they would benefit from getting more, according to research.Sean Drummond, a. psychiatrist (心理医生) at the University of California, San Diego, said older people are more likely to suffer from broken sleep, while younger people are better at

9、sleeping 49 H） efficiently straight through the night.More sleep in old age, however, is 50 B） associated with better health, and most older people would feel better and more 51 A） alert if they slept for longer periods, he said.“The ability to sleep in one chunk (整块时间) overnight goes down as we age

10、 but the amount of sleep we need to 52 J） function well does not change,” Dr Drummond told the American Association for the Advancement of Science conference in San Diego.“Its 53 F） definitely a myth that older people need less sleep. The more healthy an older adult is, the more they sleep like they

11、 did when they were 54 O） younger. Our data suggests that older adults would benefit from 55 E） continuing to get as much sleep as they did in their 30s. Thats 56 G） different from person to person, but the amount of sleep we had at 35 is probably the same amount as we need at 75.”注意：此部分试题请在答题卡2上作答。

12、A) alert I) formallyB) associated J) functionC) attracting K) mixedD) cling L) negativeE) continuing M) sufficientF) definitely N) tendG) different O) younger47. tend to 固定搭配；表示“倾向于；”符合句意；48. 空格后是effect， 前面是a(n)， 由此可见，该处需要填入一个形容词；题目给出的形容词有negative, sufficient, younger；根据前后语意，填入negative最为恰当，表示“少的睡眠时间

13、对大脑的活动有负面的影响。”49. 根据推测，该处应该填入一个副词，题目给出的副词有efficiently, definitely, formally；前面提到，老年人在睡觉的时候更容易被打断，而后面用while提出一个对比的概念，年轻人相比起来能获得更_ 的睡眠；综合起来，选用efficiently（最有效率的）最为准确。50. be associated with 固定搭配；表示“与联系在一起”；本句话表示“更多的睡眠通常都与健康度联系在一起”；51. 先看整句话的含义，“如果他们能睡更长的时间，他们的感觉应该会更好以及”那么，该处应该填入一个褒义词，选择alert比较恰当，表示“更加警觉

14、，机灵”；52. 根据判断，此处应该填入一个动词，剩下的动词有cling, function；整句话的意思是“当我们上了年纪的时候，我们一觉睡到天亮的能力下降了，但是，我们需要的睡眠量并没有改变；”空格后的单词是well， cling 在这里并不合适，一般与to连用；选用function 最为适合；53. 作者在首段已经提出这个观点是一个myth，那么显而易见最后一段中出现的myth是作为一种强调手段，应填入definitely；54. 空格的前面是 when they were， “当他们年轻的时候”；应填入younger；55. 本句的意思是“我们的数据显示老年人将从获益；”空格的后面是“

15、得到和他们在三十多岁的时候能得到的睡眠一样多”；根据上下文意思，该处应填入“continuing”；56. different from 固定搭配；表示“和不同”；2010年12月大学英语四级真题Questions 47 to 56 are based on the following passage.What determines the kind of person you are? What factors make you more or less bold, intelligent, or able to read a map? All of these are influenced

16、 by the interaction of your genes and the environment in which you were 47. M) raised . The study of how genes and environment interact to influence 48. L) psychological activity is known as behavioral genetics. Behavioral genetics has made important 49. E) contributions to the biological revolution

17、, providing information about the extent to which biology influences mind, brain and behavior.Any research that suggests that 50. A) abilities to perform certain behaviors are based in biology is controversial. Who wants to be told that there are limitations to what you can 51. B) achieve based on s

18、omething that is beyond your control, such as your genes? It is easy to accept that genes control physical characteristics such as sex, race and eye color. But can genes also determine whether people will get divorced, how 52. N) smart they are, or what career they are likely to choose? A concern of

19、 psychological scientists is the 53. I) extent to which all of these characteristics are influenced by nature and nurture(养育), by genetic makeup and the environment. Increasingly, science 54. J) indicates that genes lay the groundwork for many human traits. From this perspective, people are born 55.

20、 G) essentially like undeveloped photographs: The image is already captured, but the way it 56. H) eventually appears can vary based on the development process. However, the basic picture is there from the beginning.注意：此部分试题请在答题卡2上作答。A abilities I extentB achieve J indicatesC appeal K proceedsD comp

21、laints L psychologicalE contributions M raisedF displayed N smartG essentially O standardH eventually47. raise在这里的意思是“养育”，the environment in which you were raised 意思是“你成长的环境”。48. psychological activity意思是“心理活动”，全句意思是“研究基因和外部环境如何相互作用影响人心理活动的学科被称为行为遗传学”。49. “make contributions to”为固定搭配，意为“为做贡献”。50. “a

22、bility to ”意思是“做某事的能力”，在此处，全句意思是“任何一篇宣称人类做出某种行为的能力是基于生物学的研究都是有争议的”。51. limitations to what you can achieve意思是“对你所能达到的水平的限制”。52. 此处需填一个形容词，而且用来形容人，根据题意，smart符合题意，表示“机灵，可爱”。53. 此处填extent，主要是因为后面有to，“to the extent ”译为“的程度”。54. indicate 意思是“表明，显示”。全句意为“越来越多的科学(现象)表明基因对人类很多特征有基础作用”。55. essentially 的意思是“实

23、际上，本质上”。全句意为“从这个角度来讲，人一出生，本质上就像是还没洗出来的照片：相已经照了，但是最终会呈现多少就在于显影的过程了”。56. eventually 副词，意思是“最终，最后”。2011年12月大学英语四级真题Passage OneBoys schools are the perfect place to teach young men to express their emotions and are more likely to get involved in activities such as art, dance and music, according to rese

24、arch released today.Far from the traditional image of a culture of aggressive masculinity in which students either sink or swim, the absence of girls gives boys the chance to develop without pressure to conform to a stereotype, the US study says.Boys at single sex schools were said to be more likely

25、 to get involved in cultural and artistic activities that helped develop their emotional expressiveness, rather than feeling they had to conform to the boy code of hiding their emotions to be a real man.The findings of the study go against received wisdom that boys do better when taught alongside gi

26、rls.Tony Little, headmaster of Eton, warned that boys were being failed by the British education system because it had become too focused on girls. He criticized teachers for failing to recognize that boys are actually more emotional than girls.The research argued that boys often perform badly in mi

27、xed schools because they become discouraged when their female peers do better earlier in speaking and reading skills.But in single-sex schools teachers can tailor lessons to boys learning style, letting them move around the classroom and getting them to compete in teams to prevent boredom, wrote the

28、 studys author, Abigail James, of the University of Virginia.Teachers could encourage boys to enjoy reading and writing with specifically boy-focused approaches such as themes and characters that appeal to them. Because boys generally have more acute vision, learn best through touch, and are physica

29、lly more active, they need to be given hands-on lessons where they are allowed to walk around. Boys in mixed schools view classical music as feminine and prefer the modern genre in which violence and sexism are major themes, James wrote.Single-sex education also made it less likely that boys would f

30、eel they had to conform to a stereotype that men should be masterful and in charge in relationships. In mixed schools, boys feel compelled to act like men before they understand themselves well enough to know what that means, the study reported.57. The author believes that a single-sex school would

31、_.A force boys to hide their emotions to be “real man”B help to cultivate masculine aggressiveness in boysC encourage boys to express their emotions more freelyD naturally reinforce in boys that traditional image of a man58. It is commonly believed that in a mixed schools boys _.A perform relatively

32、 better B grow up more healthilyC behave more responsibly D receive a better education59. What does Tony Little say about the British education system?A It fails more boys than girls academically B It focuses more on mixed school educationC It fails to give boys the attention they needD It places more pressure on boys than on girls60. According to Abigail James, one of