數(shù)詞

1.As a result of destroying the forests, a large _______ of desert _______ covered the land.

A.number;has B.quantity;has

C.number;have D.quantity;have

2._______ people in the world are sending information by e-mail every day.

A.Several million B.Many millions

C.Several millions D.Many million

3. _______ of the land in that district _______ covered with trees and grass.

A.Two fifth; is B.Two fifth; are

C.Two fifths; is D.Two fifths; are

4.Paper produced every year is _______ the world's production of vehicles.

A.the three times weight of B.three times the weight of

C.as three times heavy as D.three times as heavier as

5. With the help of the German experts, the factory produced _______ cars in 1993 as the year before.

A.as twice many B.as many as twice

C.as twice as many D.twice as many

6. Mr.Smith _______ me to buy several _______ eggs for the dinner.

A.asked; dozen B.suggested; dozens of

C.had; dozen D.persuaded; dozens

●答案解析

1.答案:B

解析:a large number of后接復(fù)數(shù)名詞,不能作為答案.desert是單數(shù),要填has.

2.答案:A

解析:如果在million前有具體數(shù)字或several等詞時(shí),要用單數(shù)形式.many一般不與million等數(shù)詞連用,表示"數(shù)百萬(wàn)",英語(yǔ)為millions of.

3.答案:C

解析:分?jǐn)?shù)的分子用基數(shù)詞,分母用序數(shù)詞表示.如果分子大于1,序數(shù)詞后加-s.分?jǐn)?shù)和百分比作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞的形式取決于分?jǐn)?shù)和百分?jǐn)?shù)后的名詞.句子中的主語(yǔ)land是單數(shù),謂語(yǔ)動(dòng)詞要用is covered.

4.答案:B

解析:把表示倍數(shù)的詞放在the weight of前,意思是"……重量的三倍".其他三個(gè)選項(xiàng)的形式都是錯(cuò)誤的.

5.答案:D

解析:把表示倍數(shù),幾分之幾,百分之幾的詞放在as…as或形容詞比較級(jí)的前面.

6.答案:A

解析:在dozen前有具體數(shù)字或some, several等詞時(shí),要用單數(shù).have 后接不帶to的動(dòng)詞不定式或現(xiàn)在分詞作賓語(yǔ)補(bǔ)足語(yǔ).