阅读理解：阅读下列短文，从每题A、B、C、D四个选项中，选出一个最佳答案。In1620abouthalftheUSAwascoveredbyforests．Todaytheforestshavealmost

Question

阅读理解：阅读下列短文，从每题 A 、 B 、 C 、 D 四个选项中，选出一个最佳答案。

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 trees ． We've built the " Great Green Wall" of trees across northern part 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 Walls" are needed ． Trees must be grown all over the world ． Great Green Walls will make the world better ．

根据短文内容，选择正确答案

（    ） 1 ． In 1620 about ______ the USA was covered by forests ．

A ． a third    B ． half    C ． two thirds    D ． a fourth

（    ） 2 ． A lot of good land has gone with ______ ．

A ． sand       B ． water   C ． wind          D ． forests

（    ） 3 ． The Great Green Wall in China is ______ long ．

A ． 7 000 kilometers  B ． 1 700 kilometers   C ． 7 000 meters  D ． 400 kilometers

(    ) 4 ． Trees must be grown in ______.

A ． China      B ． the USA     C ． some countries    D ． every part of the world

(    ) 5 ． ______ will make the world better ．

A ． The Great Wall       B ． Tall buildings

C ． Great Green Walls    D ． Flowers and grass

Answer 1

1B  2D  3A  4D  5C