复习必看:考研初试英语历年真题(2021-09-10)

发布时间:2021-09-10


2022年考研初试时间已经确定,相信各位小伙伴也将进行更为紧张的复习。在最后阶段,除了教材复习之外,适当的试题练习也是非常重要的。下面,51题库考试学习网为大家带来考研初试英语科目部分历年真题,一起来看一看。

SectionⅠ Use of English

Directions:

Read the following text. Choose the best word(s) for each numbered blank and mark [A],[B], [C] or [D] on the ANSWER SHEET. (10 points)

Why do people read negative Internet comments and do other things that will obviously be painful? Because humans have an inherent need to 1 uncertainty, according to a recent study in Psychological Science. The new research reveals that the need to know is strong that people will 2 to satisfy their curiosity even when it is clear the answer will 3 .

In a series of experiments, behavioral scientists at the University of Chicago and the Wisconsin school of Business tested students’ willingness to 4 themselves to unpleasant stimuli in an effort to satisfy curiosity. For one 5 , each participant was shown a pile of pens that the researcher claimed were from a previous experiment. The twist? Half of the pens would 6 an electric shock when clicked.

Twenty-seven students were told with pens were electrified; another twenty-seven were told only that some were electrified. 7 left alone in the room. The students who did not know which ones would shock them clicked more pens and incurred more shocks than the students who knew that would 8 . Subsequent experiments reproduced this effect with other stimuli, 9 the sound of fingernails on a chalkboard and photographs of disgusting insects.

The drive to 10 is deeply rooted in humans, much the same as the basic drives for 11 or shelter, says Christopher Hsee of the University of Chicago. Curiosity is often considered a good instinct—it can 12 new scientific advances, for instance—but sometimes such 13 can backfire. The insight that curiosity can drive you to do 14 things is a profound one.

Unhealthycuriosity is possible to 15 , however. In a final experiment, participants who were encouraged to 16 how they would feel after viewing an unpleasant picture were less likely to 17 to see such an image. These results suggest that imagining the 18 of following through on one’s curiosity ahead of time can help determine 19 it is worth the endeavor. Thinking about long-term 20 is key to reducing the possible negative effects of curiosity,”Hsee says. In other words, don’t read online comments.

1.A.ignore B.protect C.discuss D.resolve

2.A.refuse B.seek C.wait D.regret

3.A.rise B.last C.hurt D.mislead

4.A.alert B.expose C.tie D.treat

5.A.trial B.message C.review D.concept

6.A.remove B.deliver C.weaken D.interrupt

7.A.Unless B.If C.When D.Though

8.A.change B.continue C.disappear D.happen

9.A.such as B.rather than C.regardless of D.owing to

10.A.disagree B.forgive C.discover D.forget

11.A.pay B.food C.marriage D.schooling

12.A.begin with B.rest on C.lead to D.learn from

13.A.inquiry B.withdrawal C.persistence D.diligence

14.A.self-deceptive B.self-reliant C.self-evident D.self-destructive

15.A.trace B.define C.replace D.resist

16.A.conceal B.overlook C.design D.predict

17.A.choose B.remember C.promise D.pretend

18.A.relief B.outcome C.plan D.duty

19.A.how B.why C.where D.whether

20.A.limitations B.investments C.consequences D.strategies

以上就是51题库考试学习网为大家带来的全部信息,希望能给大家一些帮助。51题库考试学习网提醒:在最后阶段,我们除了复习之外,调整应试心态也是非常重要的。另外,小伙伴们如果还有其他关于考研信息的疑问,也可以留言咨询。



下面小编为大家准备了 研究生入学 的相关考题,供大家学习参考。

将病毒RNA的核苷酸顺序的信息,在宿主体内转变为脱氧核苷酸顺序的过程是

A.复制
B.转录
C.反转录
D.翻译
答案:C
解析:

在信号检测实验中,如果实验结果以下表方式呈现,则击中率是

A.f1/(f1+f2)
B.f1/(f1+f3)
C.f1/(f2+f4)
D.f1/(f3+f4)
答案:A
解析:
当信号(SN)出现时,被试报告为“有”,以y/SN表示。我们把这个判定的概率称为击中率,以PYSN)表示。击中率=击中次数/信号总次数。信号总次数=击中次数+漏报次数。

己知A股票的期望收益是10%,方差是16%; B股票的期望收益是15%,方差是24%;在相关系数分别为1和-1时,请分别设计合适的投资组合,并结合作图分析作答

答案:
解析:
当相关系数为1时,则有

此时从M到N的投资组合都是有效的。 当两者的相关系数为-1时,有最小方差的投资组合为: VAR = 0. I62 x r2 + 0. 252 x ( 1 - r)2 + 2 x r x (1-r) x 0. 16 x 0. 25 当方差垠小时取到r=0. 6此时有VAR:=0,存在无风险收益。

此时的有效投资组合为AN。

可与血红蛋白结合,防止血红蛋白丢失的是

A.运铁蛋白
B.铁蛋白
C.铜蓝蛋白
D.结合珠蛋白
答案:D
解析:

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