Question

短文改錯題

At one time American cut trees wildly. In 1620

1．________

about half the USA. were covered by forests and by

2．________

1850 one third of the forests have almost disappeared

3．________

a lot of good land Today, too many trees are

4．________

still been cut throughout the world. To keep the

5．________

balance of the nature, China built a “Great Green Wall”

6．________

of millions trees across its northern part in the 1970's,

7．________

it stops the wind blowing the earth away and the desert

8．________

moved towards the rich farmland in the south.

9．________

More and more good land appears every year.

10．________

Answer 1

答案：
解析：

1．America－－Americans　　Amrican是可數(shù)名詞，此處應用其復數(shù)形式。 　　2．were－－was　　half the USA作為一個整體，動詞應用單數(shù)形式。 　　3．hay－－had　　時間狀語是by 1850，用過去完成時。 　　4．a lot前加with disappear表示“消失”是不及物動詞，后接with表示“帶著”。本句意思是“到1850年，幾乎三分之一的森林和許多農(nóng)田消失了”。 　　5．been－－being　　這里是現(xiàn)在進行時的被動語態(tài)，應用“be being＋過去分詞”形式。 　　6．去掉the nature為不可數(shù)名詞，表泛指不用冠詞。 　　7．millions后加of millions of表示“數(shù)以百萬計的”是一短語，后接名詞的復數(shù)形式。 　　8．it－－which　　此處關系代詞which既引導一個非限制性定語從句，又在從句中作主語。該非限制性定語從句修飾先行詞Great Green Wall。 　　9．moved－moving與blowing并列。 　　10．√