数词
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后接复数名词,不能作为答案.desert是单数,要填has.
2.答案:A
解析:如果在million前有具体数字或several等词时,要用单数形式.many一般不与million等数词连用,表示"数百万",英语为millions of.
3.答案:C
解析:分数的分子用基数词,分母用序数词表示.如果分子大于1,序数词后加-s.分数和百分比作主语时,谓语动词的形式取决于分数和百分数后的名词.句子中的主语land是单数,谓语动词要用is covered.
4.答案:B
解析:把表示倍数的词放在the weight of前,意思是"……重量的三倍".其他三个选项的形式都是错误的.
5.答案:D
解析:把表示倍数,几分之几,百分之几的词放在as…as或形容词比较级的前面.
6.答案:A
解析:在dozen前有具体数字或some, several等词时,要用单数.have 后接不带to的动词不定式或现在分词作宾语补足语.
