考前冲刺:2021年考研《英语二》模拟试题(2020-10-18)

发布时间:2020-10-18



2021年考研初试备考还有最后的两个多月时间,相信大家也都在紧张的复习当中。在复习时,多做练习题可以让我们更加了解考试内容。下面,51题库考试学习网为大家带来考研初试的一些模拟试题,正在备考的小伙伴赶紧练起来吧。

Section II Reading Comprehension

Part A

Directions:

Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points)

Text 2

There are various ways in which individual economic units can interact with one another. Three basic ways may be described as the market system, the administered system and the traditional system.

In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shorts, and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for money.

An alternative to the market system is administrative control by some agency over all transactions. This agency will issue edicts or commands as to how much of each good and service should be produced, exchanged, and consumed by each economic unit. Central planning may be one way of administering such an economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production consumption, and exchange for the whole economy.

In a traditional society, production and consumption patterns are governed by tradition: every person\\'s place within the economic system is fixed by parentage, religion and custom. Transactions take place on the basis of tradition, too. People belonging to a certain group or caste may have an obligation to care for other persons, provide them with food and shelter, care for their health, and provide their education. Clearly, in a system where every decision made on the basis of tradition alone, progress may be difficult to achieve. A stagnant society may result.

26.What is the main purpose of the passage?

[A]To outline contrasting types of economic.

[B]To explain the science of economic systems.

[C]To argue for the superiority of one economic system.

[D]To compare barter and money-exchange markets.

27.In the second paragraph, the word real in real goods could best be replaced by which of the following?

[A]High quality. [B]Concrete.

[C]Utter. [D]Authentic.

28.According to the passage, a barter economy can lead to ______.

[A]rapid speed of transactions

[B]misunderstandings

[C]inflation

[D]difficulties for the traders

29.According to the passage, who has the greatest degree of control in an administered system?

[A]Individual households. [B]Small businesses.

[C]Major corporations. [D]The government.

30.Which of the following is not mentioned by the author as a criterion for determining a person\\'s place in a traditional society?

[A]Family background. [B]Age.

[C]Religious beliefs. [D]Custom.

以上就是51题库考试学习网为大家带来的全部内容,希望能给大家一些帮助。51题库考试学习网提醒:以上内容仅为参考,在做试题练习时,小伙伴们还是要以考研大纲为准,有针对性的去做题哦。最后,51题库考试学习网预祝参加2021年考研初试的小伙伴都能取得优异的成绩。



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。

看电视的儿童需要在屏幕闪现的时间内处理声音和图像,这么短的时间仅仅可以使眼睛和耳朵能够接受信息;读书则不同,儿童可以以自己想要的速度阅读,电视图像出现的速度如此机械而无情,它阻碍了而不是提高了儿童的想象力。上述观点最可能基于下面哪个选项?

A.当被允许选择一种娱乐时,儿童会更喜欢读书而不是看电视。
B.儿童除非可以接触到电视和书,否则其想象力不会得到适当的激发。
C.当儿童可以控制娱乐的速度时,他的想象力可以得到更完全的发展。
D.儿童刚刚能理解电视上的内容时,就应教他们读书。
E.由于每个孩子都是不同的,因此孩子对不同的感官刺激的反应时不可预测的。
答案:C
解析:
共变法或者题干是有A有B,选项无A无B的支持。根据图像和声音出现的时间少,得出结论:看电视阻碍了儿童的想像力。即,如果图像和声音出现的时间足够多,儿童的想像力能够得到更完全的发展,即C。

DNA复制过程中,参与冈崎片段之间连接的酶有
A. RN

A 酶

B. DNA-polⅢ

C. DnaA蛋白

D.连接酶
答案:A,D
解析:

谷氨酰胺是
A.氨的贮存形式 B.氨的运输形式 C.氨的解毒产物 D.碱性氨基酸

答案:A,B,C
解析:
氨与谷氨酸反应生成的谷氨酰胺,在肾小管上皮细胞中通过谷氨酰胺酶的作用水解成氨(由尿 排出)和谷氨酸(被重吸收),因此谷氨酰胺既是氨的贮存形式,也是氨的解毒产物。氨在血中的运输形 式主要是谷氨酰胺:脑中的氨运输至肝的形式是谷氨酰胺;肌肉中的氨运输至肝的形式是丙氨酸+谷氨 酰胺。谷氨酰胺是中性氨基酸。

当骨骼肌做等长收缩时

A.肌梭的传入冲动增加,腱器官的传入冲动减少
B.肌梭的传入冲动减少,腱器官的传入冲动增加
C.肌梭的传入冲动不变,腱器官的传入冲动增加
D.肌梭的传入冲动减少,腱器官的传入冲动不变
答案:C
解析:

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