1、大学英语四级分类模拟题 500 及答案解析(总分：102.50，做题时间：90 分钟)一、Part Writing(总题数：1，分数：16.50)1.On Students Quitting School For this part, you are allowed 30 minutes to write a short essay entitled On Students Quitting School by commenting on the current phenomenon: many students choose to quit school before graduation.
2、 You should write at least 120 words but no more than 180 words. （分数：16.50）_二、Part Reading Compr(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：15.00)Let us begin by saying what does not cause our dreams. Our dreams do not come from “another world.“ They are not messages from some outside source. They are not
3、 a look into the future, either. All our dreams have something to do with our emotions, fears, longings, wishes, needs and memories. But something on the “outside“ may affect what we dream. If a person is hungry, or tired, or cold, his dreams may include a feeling of this kind. If the covers on your
4、 body, such as a quilt or a blanket, have slipped off your bed, you may dream that you are sleeping or resting on the ice and snow. The material for the dream you will have tonight is likely to come from the experiences you have today. So the subject of your dream usually comes from something that h
5、as effect on you while you are sleeping (feeling of cold, a noise, a discomfort, etc.) and it may also use your past experiences and the wishes and interests you have now. That is why very young children are likely to dream of fairies, older children of school examinations, hungry people of food, ho
6、mesick soldiers of their families, and prisoners of freedom. To show you what is happening while you are asleep and how your wishes or needs can all be joined together in a dream, here is the story of an experiment. A man was asleep and the back of his hand was rubbed with a piece of absorbent cotto
7、n (药棉). He would dream that he was in a hospital and his charming girlfriend was visiting him, sitting on the bed and feeling gently his hand! There are some scientists who have made a special study of why we dream, what we dream and what those dreams mean. Their explanation of dreams, though a bit
8、reasonable, is not accepted by everyone, but it offers an interesting approach to the problems. They believe that dreams are mostly expressions of wishes that did not come true. In other words, a dream is a way of having your wishes carried out.（分数：15.00）(1).What does the author say about dreams?（分数
9、：3.00）A.One cannot predict what may happen in the future through dreams.B.Our dreams can be related to anything but past experiences.C.Our dreams are messages from some outside source.D.People with poor memories dream less than those with good memories.(2).What do we learn from the second paragraph?
10、（分数：3.00）A.When a blanket slips off your bed at night, you may feel you have nothing on at all.B.When you feel cold, you may have a dream that you are staying in freezing surroundings.C.When you feel very tired, you may fall asleep quickly without having any dreams at all.D.When you feel uncomfortab
11、le, you may have a dream that people are making noise.(3).Why are very young children likely to dream of fairies?（分数：3.00）A.They feel uncomfortable while they are sleeping.B.They have seen such fairies in their dreams before.C.They have a very strong desire to see such fairies.D.Such fairies may bri
12、ng them good luck in their examinations.(4).What influenced the man“s dream according to the experiment described in this passage?（分数：3.00）A.Both the external and internal factors.B.His fear of an operation.C.His strong wishes to see his girlfriend.D.The hospital in which he was treated.(5).The expl
13、anation of dreams that some scientists give _.（分数：3.00）A.is considered interesting, but meaninglessB.gives a good answer to the question why we dreamC.has some value, though not fully convincingD.has been proved by the findings of their studies五、Passage Two(总题数：1，分数：71.00)The word “unfriending“ ente
14、red common vocabulary only a few years ago, and since then researchers have been trying to understand why and when it happens. The answers relate to a bigger outstanding question in web science: Are online social relationships fundamentally different to physical world ties? The likes of Facebook als
15、o want to know what drives unfriending, because decaying friendships is bad for business. Up until now, the evidence suggested that unfriending on online social networks was driven mainly by too-frequent posts about polarising (两极化的) topics. Too much religion? Goodbye. Support gay marriage? Unfriend
16、. And in a recent survey of US adults, 55 percent said they unfriended people because of their offensive status updates or comments. That was the most popular reason, followed by “not knowing the person well“ (41 percent), and “tried to sell me something“ (39 percent). So far, so unsurprising. Yet D
17、aniele Quercia at the University of Cambridge had doubts about whether politics and rudeness really were the most common reasons for severing Facebook ties. After all, he says, these recent studies and surveys were based on self-reported behaviour, not hard data. And more importantly, the reasons pe
18、ople gave for severing their Facebook ties are not the same factors that lead to the dissolution of offline relationships. So Quercia and his colleagues analysed the dynamics of more than 34,000 Facebook relationships to find patterns that correlated with unfriending. He presented the results at the
19、 Web Science conference in Evanston, Illinois, last month. Sure enough, a lack of similarity, especially between ages, and few mutual friendships were the dominant factors correlating with unfriending all of which mirrors the decline of physical-world relationships. Quercia also found that having a
20、mutual female friend makes unfriending less likely than sharing a male friend. Finally, Quercia also showed that personality type matters. Perhaps not surprisingly, a relationship is more likely to break if one of the people is introverted (内向的). Facebook may be a new environment, but the age-old ru
21、les of friendship apply there too.（分数：71.00）(1).Why does Facebook want to know the reason for unfriending?（分数：14.20）A.It is hard to make new friends online.B.It has interest in online relationship.C.Its user may lose trust on their friends.D.Unfriending may do harm to its business.(2).What can we le
22、arn about unfriending from the recent survey of US adults?（分数：14.20）A.A person is most likely to be unfriended if he makes offensive comments.B.Unfriending happens only when people have different religious beliefs.C.No one would make friend online with those who try to sell them something.D.People o
23、nline would like to talk with someone they are not very familiar with.(3).What would Daniele Quercia agree with?（分数：14.20）A.Politics is the most popular reasons for unfriending.B.Rudeness is the main reason for the fraction of offline relationships.C.Studies that are based on self-reported behavior
24、are not reliable enough.D.People in the surveys did not tell the truth about their reasons for unfriending.(4).The dominant factors leading to unfriending online _.（分数：14.20）A.also explain the decline of real-world relationshipsB.hint that there is no fixed pattern of unfriendingC.suggest people to
25、have mutual friends of all agesD.show that it is becoming harder to make new friends(5).What can be inferred from the last paragraph?（分数：14.20）A.Facebook is not a perfect environment for making new friends.B.Principles for friendship do not change in the online environment.C.The more friends you hav
26、e in the real life, the fewer you have online.D.Most of us do not like to make friends with introverted ones.大学英语四级分类模拟题 500 答案解析(总分：102.50，做题时间：90 分钟)一、Part Writing(总题数：1，分数：16.50)1.On Students Quitting School For this part, you are allowed 30 minutes to write a short essay entitled On Students Qui
27、tting School by commenting on the current phenomenon: many students choose to quit school before graduation. You should write at least 120 words but no more than 180 words. （分数：16.50）_正确答案：()解析：On Students Quitting SchoolMany college students have quit school in recent years. They do it for differen
28、t reasons. Some students quit school because of their poor health. A serious disease or a traffic accident may have made it impossible for them to continue their schooling. Other students may be forced to do it because their family couldn“t afford the tuition. However, there are some students who qu
29、it school out of their own choice. Some embrace a good job offer and leave school. Others may find that they cannot afford to lose the good opportunity to start their own business, so they quit school to start their career just like Bill Gates. Whatever the reason, I think college students should th
30、ink twice before deciding to quit school. After all, graduates are normally better prepared for their future than those who quit school. College education pays off in the long run.二、Part Reading Compr(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：15.00)Let us begin by saying what does not cause our dreams. O
31、ur dreams do not come from “another world.“ They are not messages from some outside source. They are not a look into the future, either. All our dreams have something to do with our emotions, fears, longings, wishes, needs and memories. But something on the “outside“ may affect what we dream. If a p
32、erson is hungry, or tired, or cold, his dreams may include a feeling of this kind. If the covers on your body, such as a quilt or a blanket, have slipped off your bed, you may dream that you are sleeping or resting on the ice and snow. The material for the dream you will have tonight is likely to co
33、me from the experiences you have today. So the subject of your dream usually comes from something that has effect on you while you are sleeping (feeling of cold, a noise, a discomfort, etc.) and it may also use your past experiences and the wishes and interests you have now. That is why very young c
34、hildren are likely to dream of fairies, older children of school examinations, hungry people of food, homesick soldiers of their families, and prisoners of freedom. To show you what is happening while you are asleep and how your wishes or needs can all be joined together in a dream, here is the stor
35、y of an experiment. A man was asleep and the back of his hand was rubbed with a piece of absorbent cotton (药棉). He would dream that he was in a hospital and his charming girlfriend was visiting him, sitting on the bed and feeling gently his hand! There are some scientists who have made a special stu
36、dy of why we dream, what we dream and what those dreams mean. Their explanation of dreams, though a bit reasonable, is not accepted by everyone, but it offers an interesting approach to the problems. They believe that dreams are mostly expressions of wishes that did not come true. In other words, a
37、dream is a way of having your wishes carried out.（分数：15.00）(1).What does the author say about dreams?（分数：3.00）A.One cannot predict what may happen in the future through dreams. B.Our dreams can be related to anything but past experiences.C.Our dreams are messages from some outside source.D.People wi
38、th poor memories dream less than those with good memories.解析：解析 第 1 段最后一句提到，梦不是对未来的预测，所以人不能通过梦对未来进行预测，故答案为 A 项。第 3 段第 1 句指出，梦可能涉及过去的经历，故 B 项错误。第 1 段最后一句提到，梦不是来自外部世界的信息，故 C 项错误。第 2 段第 1 句虽提到梦与记忆有关，但并未说记忆力不好的人做的梦少，故D 项也有误。(2).What do we learn from the second paragraph?（分数：3.00）A.When a blanket slips o
39、ff your bed at night, you may feel you have nothing on at all.B.When you feel cold, you may have a dream that you are staying in freezing surroundings. C.When you feel very tired, you may fall asleep quickly without having any dreams at all.D.When you feel uncomfortable, you may have a dream that pe
40、ople are making noise.解析：解析 第 2 段第 3 句指出，一个人如果饿了，或者累了，或者觉得冷，他的梦里也许就会包含这类感觉。接着第 4 句举了睡觉的时候身上盖的被子掉了会梦见在冰雪上睡觉或休息这样一个例子加以说明。B 项与文意相符，故为答案，同时排除 A、C 和 D 在文中找不到依据。(3).Why are very young children likely to dream of fairies?（分数：3.00）A.They feel uncomfortable while they are sleeping.B.They have seen such fair
41、ies in their dreams before.C.They have a very strong desire to see such fairies. D.Such fairies may bring them good luck in their examinations.解析：解析 第 3 段提到，梦与人的心愿和兴趣有关。接着举了小孩子可能会梦见小精灵，稍大一点的孩子会梦见考试等例子。由此可以推断，小孩子肯定是有强烈想见到小精灵的愿望，故答案为 C 项。(4).What influenced the man“s dream according to the experiment
42、described in this passage?（分数：3.00）A.Both the external and internal factors. B.His fear of an operation.C.His strong wishes to see his girlfriend.D.The hospital in which he was treated.解析：解析 第 4 段举例旨在说明“睡着时发生的事情”与“心愿或需求”是怎样一起融入梦境的、在这个例子中，有人用药棉摩擦实验者的手属于“睡觉时正在发生的事情”，即外部因素，而实验者梦到女朋友来看他则属于“心愿或需求”，即内部因素。
43、由此可知，实验者的梦境受到外部和内部因素的共同影响，故答案为 A、C 过于片面。(5).The explanation of dreams that some scientists give _.（分数：3.00）A.is considered interesting, but meaninglessB.gives a good answer to the question why we dreamC.has some value, though not fully convincing D.has been proved by the findings of their studies解析：
44、解析 最后一段第 2 句指出，科学家们对梦的解释，尽管有合理之处，但还没有被普遍接受。C项“有一定价值，但不是完全令人信服”与文意一致，故为答案。五、Passage Two(总题数：1，分数：71.00)The word “unfriending“ entered common vocabulary only a few years ago, and since then researchers have been trying to understand why and when it happens. The answers relate to a bigger outstanding q
45、uestion in web science: Are online social relationships fundamentally different to physical world ties? The likes of Facebook also want to know what drives unfriending, because decaying friendships is bad for business. Up until now, the evidence suggested that unfriending on online social networks w
46、as driven mainly by too-frequent posts about polarising (两极化的) topics. Too much religion? Goodbye. Support gay marriage? Unfriend. And in a recent survey of US adults, 55 percent said they unfriended people because of their offensive status updates or comments. That was the most popular reason, foll
47、owed by “not knowing the person well“ (41 percent), and “tried to sell me something“ (39 percent). So far, so unsurprising. Yet Daniele Quercia at the University of Cambridge had doubts about whether politics and rudeness really were the most common reasons for severing Facebook ties. After all, he
48、says, these recent studies and surveys were based on self-reported behaviour, not hard data. And more importantly, the reasons people gave for severing their Facebook ties are not the same factors that lead to the dissolution of offline relationships. So Quercia and his colleagues analysed the dynam
49、ics of more than 34,000 Facebook relationships to find patterns that correlated with unfriending. He presented the results at the Web Science conference in Evanston, Illinois, last month. Sure enough, a lack of similarity, especially between ages, and few mutual friendships were the dominant factors correlating with unfriending all of which mirrors the decline of physical-world
