Question

【题目】 The energy which the sun radiates(辐射) goes in every direction. But only a minute part of it falls on the earth. Even so, it radiates power of about 5,000,000 horsepower per square mile per day. The sun gives us as much energy every minute as mankind uses in a year. At present, we use this energy indirectly, and it is our final source of power.

Coal(煤) represents the chemical action of the sun on green plants thousands of years ago. Water power results from the rain formed by vapor when water changes into gas under the sunshine. Even windmills(风车磨坊) operate because of air current(流) starts moving by the different heating effects of the sun in different places.

Someday, through chemistry or some types of solar engine, we should use this great source of energy more directly. Already a scientist has worked out an engine, surprisingly doing well, in which the sun’s rays are concentrated through mirrors on water to create steam.

【1】What do the underlined words “a minute” mean in this passage?

A.一分钟B.一点点C.片刻D.一份笔记

【2】How much energy does the sun radiate every ten square miles per day?

A.About 5,000,000 horsepowerB.About 208,333 horsepower

C.About 100,000,000 horsepowerD.About 50,000,000 horsepower

【3】Which of the following statement is not true, according to the passage?

A.Even windmills turn because of the sun.

B.The sun produces enormous energy for man to make use of.

C.Someday man will be able to use 100% of the solar energy that gets to the earth.

D.The sun produces different heating effects in different places.

【4】This passage is mainly about _______.

A.water powerB.our final source of power

C.how water power is producedD.the amount of solar energy that can be used

Answer 1

【答案】

【1】B

【2】D

【3】C

【4】D

【解析】

本文是一篇说明文，主要说的是太阳给地球带来的巨大能量，而人类对此的利用却不多，未来通过化学或某种太阳能引擎，也许人类可以更加直接地使用这一巨量的能源。

【1】题意：文章中画线单词“a minute”是什么意思？

词句猜测题。根据原文第1段The energy which the sun radiates(辐射) goes in every direction. But only a minute part of it falls on the earth可知，太阳向四面八方散发出能量，但是只有一小部分属于地球。短语a minute part of在句中意为“一小部分”，a minute可意为“一点点”，B选项符合题意，故选B。

【2】题意：太阳每十平方英里每天辐射多少能量？

细节理解题。根据原文第1段Even so, it radiates power of about 5,000,000 horsepower per square mile per day可知，太阳每天每平方英里的辐射功率约为5000000马力/平方英里。题目问的是每十平方英里每天的辐射量，故原文数值应乘以10，D选项About 50,000,000 horsepower“大约50000000马力/平方英里”符合题意，故选D。

【3】题意：根据本文内容，下面哪个说法是不正确的？

细节理解题。根据原文第2段Even windmills(风车磨坊) operate because of air current(流) starts moving by the different heating effects of the sun in different places可知，太阳照射到地球表面，地球表面各处受热不同，产生温差，从而引起大气的对流运动形成风，而风则推动了风车磨坊扇叶的转动，A选项Even windmills turn because of the sun“即使风车也会因为太阳而转动”说法正确，可排除。根据原文第1段The sun gives us as much energy every minute as mankind uses in a year可知，太阳每分钟给我们的能量和人类一年所用的能量一样多，B选项The sun produces enormous energy for man to make use of“太阳产生巨大的能量供人类利用”说法正确，可排除。根据原文第2段Even windmills(风车磨坊) operate because of air current(流) starts moving by the different heating effects of the sun in different places可知，太阳照射到地球表面，地球表面各处受热不同，产生温差，从而引起大气的对流运动形成风，D选项The sun produces different heating effects in different places“太阳在不同的地方产生不同的加热效果”说法正确，可排除。根据原文第3段Someday, through chemistry or some types of solar engine, we should use this great source of energy more directly可知，随着技术的发展，也许未来人们可以更直接地使用太阳能，C选项Someday man will be able to use 100% of the solar energy that gets to the earth“总有一天，人类将能够利用到达地球的100%的太阳能”说法错误，故选C。

【4】题意：这篇文章主要是关于__________。

主旨大意题。通读全文可知，本文主要内容说的是太阳给地球带来的巨大能量，而人类对此的利用却不多，未来通过化学或某种太阳能引擎，也许人类可以更加直接地使用这一巨量的能源。D选项the amount of solar energy that can be used“可利用的太阳能数量”符合题意，故选D。