Question

【題目】 The energy which the sun radiates(輻射) 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(風車磨坊) 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.一分鐘B.一點點C.片刻D.一份筆記

【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】

本文是一篇說明文，主要說的是太陽給地球帶來的巨大能量，而人類對此的利用卻不多，未來通過化學或某種太陽能引擎，也許人類可以更加直接地使用這一巨量的能源。

【1】題意：文章中畫線單詞“a minute”是什么意思？

詞句猜測題。根據(jù)原文第1段The energy which the sun radiates(輻射) goes in every direction. But only a minute part of it falls on the earth可知，太陽向四面八方散發(fā)出能量，但是只有一小部分屬于地球。短語a minute part of在句中意為“一小部分”，a minute可意為“一點點”，B選項符合題意，故選B。

【2】題意：太陽每十平方英里每天輻射多少能量？

細節(jié)理解題。根據(jù)原文第1段Even so, it radiates power of about 5,000,000 horsepower per square mile per day可知，太陽每天每平方英里的輻射功率約為5000000馬力/平方英里。題目問的是每十平方英里每天的輻射量，故原文數(shù)值應乘以10，D選項About 50,000,000 horsepower“大約50000000馬力/平方英里”符合題意，故選D。

【3】題意：根據(jù)本文內(nèi)容，下面哪個說法是不正確的？

細節(jié)理解題。根據(jù)原文第2段Even windmills(風車磨坊) operate because of air current(流) starts moving by the different heating effects of the sun in different places可知，太陽照射到地球表面，地球表面各處受熱不同，產(chǎn)生溫差，從而引起大氣的對流運動形成風，而風則推動了風車磨坊扇葉的轉動，A選項Even windmills turn because of the sun“即使風車也會因為太陽而轉動”說法正確，可排除。根據(jù)原文第1段The sun gives us as much energy every minute as mankind uses in a year可知，太陽每分鐘給我們的能量和人類一年所用的能量一樣多，B選項The sun produces enormous energy for man to make use of“太陽產(chǎn)生巨大的能量供人類利用”說法正確，可排除。根據(jù)原文第2段Even windmills(風車磨坊) operate because of air current(流) starts moving by the different heating effects of the sun in different places可知，太陽照射到地球表面，地球表面各處受熱不同，產(chǎn)生溫差，從而引起大氣的對流運動形成風，D選項The sun produces different heating effects in different places“太陽在不同的地方產(chǎn)生不同的加熱效果”說法正確，可排除。根據(jù)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，隨著技術的發(fā)展，也許未來人們可以更直接地使用太陽能，C選項Someday man will be able to use 100% of the solar energy that gets to the earth“總有一天，人類將能夠利用到達地球的100%的太陽能”說法錯誤，故選C。

【4】題意：這篇文章主要是關于__________。

主旨大意題。通讀全文可知，本文主要內(nèi)容說的是太陽給地球帶來的巨大能量，而人類對此的利用卻不多，未來通過化學或某種太陽能引擎，也許人類可以更加直接地使用這一巨量的能源。D選項the amount of solar energy that can be used“可利用的太陽能數(shù)量”符合題意，故選D。