23）A（great）number of，many，a few修饰可数复数名词，其短语作主语时，谓语动词用复数；a little，much，a great deal of，a large amount of修饰不可数名词，其短语作主语时，谓语动词用单数。例如：

A large amount of（A great deal of）damage was done in a very short time.

A great deal of trouble lies before us.

A number of students have gone to the countryside to help.

with the autumn harvest.

24）（large）quantities of修饰可数 复数名词或不可数名词其短语作主语时，谓语动词一般用复数。例如：

Quantities of food （nuts） were on the table.

Large amounts of money were spent on the bridge.

25）The number+可数复数名词，the amount of+不可数名词，the quantity of+可数复数名词或不可数名词构成的短语，作主语时，谓语动词用单数，例如：

The amount of money is great.

The quantity of heat in the office has not been increased.

The quantity of books in the library is amazing.

The number of students in our school is increasing.

26）表示数量的one and a half 后，名词要用复数形式。但是其短语作主语时，谓语动词用单数形式。例如：

One and a half bananas is left on the table.

27）half of，（a）part of修饰可数名词单数及不可数名词时，谓语动词用单数；修饰可数名词复数时，谓语动词用复数。

5.名词化的形容词作主语 

28）如果主语由“the+形容词或过去分词）”结构充当时。谓语通常用复数。这类词有；the brave，the poor，the rich，the blind，the young，the old， the sick，the dead，the deaf and dumb，the oppressed，the injured， the wounded， the unemployed等；但也有少数的过去分词与定冠词连用时指个别，则用单数。例如：

The departed（死者） was a well-known engineer.

The blind study in special schools.

这类形容词或分词如果要表示个体时，就要与名词／man，person或表示人的单数连用。如：all old man，a rich person，the（a）wounded soldier

6.从句作主语 

29）由what引导的主语从句，谓语动词通常用单数；所指的具体内容若是复数意义，谓语动词一般用复数形式。例如：

What we need are doctors.

What we need is more time.

30）在复数名词引导的从句结构中，关系代词的先行词是靠近它的复数名词而不是，因此，从句中的动词应该是复数形式。例如：

This is one of the most interesting questions that have been asked.

但是，当之前有等修饰时，关系代词的先行词是，而不是靠近它的复数名词，因此从句的动词应是单数形式。例如：

she was the only one of the girls who was late for the meeting.

专题训练

1.We each _____ strong points and each of us on the other hand ______ weak points.

A. have ， have B. has， have

C. has ， has D. have， has

2.A library with five thousand books ______ to the nation as a gift.

A. is offered B. has offered

C. are offered D. have offered

3.The police _______ determined to bring back the missing boy when his family ______ almost given up all hope.

A. is， has B. are，have

C. are，has D. is， have

4.In this institution a medal together with a prize of certain sum of money _____ gains success in science and technology every two years.

A. are given to anyone

B. is given to whoever

C. are given to who

D. is given to whom

5.You should try Larry and Kevin’srestaurant because _____ the best in the city.

A. theirs is B. their’s is

C. they are D. their's are

6.Only one of the students who ____ present____ to speak at the meeting.

A. is， is B. are， are

C. are， isD. is， are

7.------______ the dollars a big sum of money to him？------ I suppose _________.

A. Are， to B. Were， to

C. Will be， toD. Is ， so

8.When and where to build the new factory ______ yet.

A. is not decided

B. are not decided

C. had not decided

D. have not decided

9.Either Tom or Jane did _____ homework in the classroom.

A. their B. theirs

C. his D. her

10.Reading magazines and novels _____ helpful.

A. is B. are

C. have D. has

11.In spring， many plants bloom， which ____ the world even more beautiful.

A. made B. make

C. makes D. have made

12.It's not you but Mr. Anderson who ___ to answer ___ the incident.

A. are， for B. were， to

C. is， for D. was，back

13.There are two books on the bookshelf. ____ of them ____ worth ______.

A. Both ， are， being read

B. All， are，reading

C. Neither， is， being read

D. Either， is，reading

14.The number of people invited ______ fifty， but a number of them ______ absent for different reasons. （MENT96）

A. were ， was

B. was， was

C. was， were

D. were ， were

15.I don't think the poor ______ poor.

A. are alwaysB. has been always

C. is always D. always are

16.Every means _______ tried butwithout much result.

A. have been B. had

C. has D. has been

17.At the meeting each man and each woman _____ praised by the manager yesterday.

A. wasB. were

C. would be D. had been

18.One and a half days _____ what I need.

A. was B. is

C. are D. were

19.Sixty percent of the work______ .

A. have been done

B. had been done

C. has been done

D. has done

20.____ neither you nor your brother interested in swimming？

A. Are B. Is

C. Do D. Does

21.Such films ____ shown yesterday ____ not worth seeing again.

A. that was， is

B. as were， are

C. as were， is

D. those were，are

22.Three fourths of the earth's surface ____ covered with water.

A. is B. are

C. was D. were

23.About 85 percent of the students ____ good，and part of them _____ interested in biology.

A. is， are B. are， are

C. are，is D. is，is

24.Politics ____ now taught in all schools.