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In 1620,about half the USA was covered by forests .Today the forests have almost gone .A lot of good land has gone with them ,leaving only sand .China doesn’t want to copy the USA’s example.We’re planting more and more tress .We’ve built the “Great Green Wall ”of tress across northern pat of our country .The “Great Green Wall”is 7,000 kilometers long ,and between 400 and 1,700 kilometers wide .It will stop the wind from blowing the earth away .It will stop the sand from moving towards the rich farmland in the south .More “Great Green Wall ”are needed .Trees must be grown all over the world. “Great Green Wall ”will make the world better .
根據短文內容,選擇正確答案。
【小題1】In 1620 ,about_____ the USA was covered by forests

A.a thirdB.halfC.to thirdsD.a fourth
【小題2】 A lot of good land has gone with _____.
A.sand B.waterC.windD.forests
【小題3】 The “Great Green Wall”In China is _____long
A.7,000 kilometersB.1,700 kilometers
C.7,000 metersD.400 kilometers
【小題4】 Trees must be grown in _____.
A.ChinaB.the USA
C.some countriesD.every part of the world
【小題5】_____ will make the world better .
A.the Great WallB.Tall buildings
C.Great Green WallD.Flowers and glass


【小題1】B
【小題2】D
【小題3】A
【小題4】D
【小題5】C.

解析試題分析:
【小題1】根據In 1620,about half the USA was covered by forests .可知選B。
【小題2】根據Today the forests have almost gone .A lot of good land has gone with them。Them指代的是上文提到的the forests,故選D。
【小題3】根據The “Great Green Wall”is 7,000 kilometers long ,可知選A。
【小題4】根據Trees must be grown all over the world.可知選D。
【小題5】根據“Great Green Wall ”will make the world better .可知選C。
考點:關于環保的說明文
點評:本文首先介紹了美國的森林的森林遭到破壞后的結果,然后重點介紹了中國的北方的綠色長城工程。號召人們多植樹,保護環境,很有教育意義。

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