考前必看：2021年考研英语工学类阅读理解模拟题及答案（二十二）

发布时间：2020-10-12

2021年考研初试备考还有最后的近三个月时间，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。

“The creation of the PC is the best thing that ever happened，” said Bill Gates at a conference on “digital dividends” in 2000. He even wondered if it might be possible to make computers for the poor in countries without an electric power grid. The answer is yes， and things are going even further. Villagers in a remote region of Laos that has neither electricity nor telephone connections are being wired up to the Internet.

Lee Thorn， the head of the Jhai Foundation， an American-Lao organisation， has been working for nearly five years in the Hin Heup district. The foundation has helped villagers build schools， install wells and organise a weaving co-operative. But those villagers told Mr Thorn that what they needed most was access to the Internet. To have any hope of meeting that need， in an environment which is both physically harsh and far removed from technical support， Mr Thorn realised that a robust computer was the first requirement.

He therefore turned to engineers working with the Jhai Foundation， who devised a machine that has no moving， and few delicate， parts. Instead of a hard disk， the Jhai PC relies on flash-memory chips to store its data. Its screen is a liquid-crystal display， rather than an energy-guzzling glass cathode-ray tube——an exception to the rule that the components used are old-fashioned， and therefore cheap. (No Pentiums， for example， just a 486-type processor.) Mr Thorn estimates that， built in quantity， each Jhai PC would cost around $400. Furthermore， because of its simplicity， a Jhai PC can be powered by a car battery charged with bicycle cranks——thus removing the need for a connection to the grid.

Wireless Internet cards connect each Jhai PC to a solar-powered hilltop relay station which then passes the signals on to a computer in town that is connected to both the Lao phone system (for local calls) and to the Internet. Meanwhile， the Linux-based software that will run the computers is in the final stages of being “localised” into Lao by a group of expatriates in America.

One thing that the new network will allow villagers to do is decide whether it is worth going to market. Phon Hong， the local market town， is 30km away， so it is worth knowing the price of rice before you set off to sell some there. Links farther afield may allow decisions about growing crops for foreign markets to be taken more sensibly——and help with bargaining when these are sold. And there is also the pleasure of using Internet telephony to talk to relatives who have gone to the capital， Vientiane， or even abroad.

If it works， the Jhai PC and its associated network could be a widespread success. So far， the foundation has had expressions of interest from groups working in Peru， Chile and South Africa. The prototype should be operational in Laos this December and it， or something very much like it， may soon be bridging the digital divide elsewhere as well.

注(1)：本文选自Economist;9/28/2002， p76， 2/3p， 1c;

注(2)：本文习题命题模仿对象2003年真题text 2第1题(1)，2002年真题text 4地1、2题(2，4)，text 3第4题(5)，1998年真题text 2第4题(3);

1. The author begins his article with Bill Gate‘s words to________.

[A] show the great prospect of the PC in improving people‘s life

[B] catch people‘s attention to the importance of the PC

[C] reveal a project that creates miracle

[D] prove the PC can do things even beyond imagination

2. From the second paragraph， we learn that_____________.

[A] villagers are isolated from the outside world

[B] Lee‘s work is to improve the life of people living in the countryside

[C] the harsh environment keeps Lee from doing better job

[D] engineers have moved to far-away towns due to the poverty of the villages

3. Which of the following is NOT a feature of Jhai PC?

[A] delicateness

[B] practicality

[C] simplicity

[D] low cost

4. Which of the following statements is true according to the text?

[A] The Jhai PC has no expensive parts.

[B] The Jhai PC is powered by solar energy.

[C] The project has gained support from non-resident Laotians.

[D] The software that runs the Jhai PC is a local product.

5. We can draw a conclusion from the text that___________.

[A] Mr. Thorn‘s project may produce a far-reaching influence

[B] the Jhai PC is revolutionizing the PC industry

[C] South Africa is as poor as Laos

[D] digital divide is something caused by pc and network

答案：ABACA

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。

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主归心、肝经的药物是
A.开窍药
B-活血药
C.安神药
D.补血药

答案：B,C,D

解析：

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心脏射血能力增加时
A.动脉血压升高 B.中心静脉压降低
C.两者都有 D.两者都无

答案：C

解析：

心脏射血能力增加时，每搏量增加，使动脉血庄升高，心室余血减少，敌中心：静脉压降低。

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原发性肝细胞癌
A.癌胚抗原阳性 B.甲胎蛋白阳性
C.酸性磷酸酶增高 D.碱性磷酸酶和酸性磷酸酶均增高

答案：B

解析：

常考临床检验值与肿瘤的关系如下表：

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列举问卷设计中封闭式题目的三种答案格式，并各设计一个完整的题目。

答案：

解析：

⑴是否式。
示例：你是班主任吗？
A.是 B.否
(2)单项选择式。
示例：你最喜欢下列哪一类体育活动？
A.球类 B.田径 C.游泳 D.体操 E.武术 F.其他
(3)多项选择式。
示例：你比较喜欢看哪些电视节目？（限选三项）
A.新闻类B.影视剧类 C.体育类D.广告类 E.谈话类 F.歌舞类G.少儿类 H.其他
(4)量表式（等级式〉。
示例：我觉得我在班里很重要。
A.非常符合 B.比较符合 C.不太符合 D.非常不符合
(5)排序式。
示例：请将下列行为依其对科学素质的重要程度由高到低排序，并把排序结果写在 左边的括号内。
()能坚持观察活动。 ()能将所学的科学知识用于生活实际。 ()能动手进行科技制作。 ()能识别迷信与伪科学的谬误。 ()能从自己身边做起，参与科学知识的普及活动。 【评分说明】只要考生答出上述5种格式中的3种并举例恰当，即可得满分。每种格 式答出名称给2分，视举例情况再酌情给1~3分。

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