16. The construction of the two railway lines ________ by now.

　　A. has completed B. have completed

　　C. have been completed D. has been completed

　　[解析]the construction 作主語，謂語動詞用單數(shù)。

　　[答案]D

　　17.The company had about 20 notebook computers but only one third ________ used regularly. Now we have 60 working all day long.

　　A. is B. are

　　C. was D. were

　　[解析]分數(shù)修飾復數(shù)名詞作主語，謂語用復數(shù)。

　　[答案]D

　　18.Most of what has been said about the Smiths ________ also true of the Johnsons.

　　A. are B. is

　　C. being D. to be

　　[解析]most of what... 作主語，謂語動詞用單數(shù)。

　　[答案]B

　　19. A poet and artist ________ coming to speak to us about Chinese literature and painting tomorrow afternoon.

　　A. is B. are

　　C. was D. were

　　[解析]兩個名詞共用一個冠詞作主語，謂語動詞用單數(shù)。

　　[答案]A

　　20.The father as well as his three children ________ skating on the frozen river every Sunday afternoon in winter.

　　A. is going B. go

　　C. goes D. are going

　　[解析]as well as 連接的主語，謂語動詞采用就前一致原則。

　　[答案]C

　　21.Two hours away from the tall buildings of New York ________.

　　A. some of the world's largest bears live

　　B. lives some of the world's largest bears

　　C. do some of the world's largest bears live

　　D. live some of the world's largest bears

　　[解析]some of the world's largest bears 為句子真正的主語。

　　[答案]D

　　22.The library along with bookstores ________ reading materials. It's open from 9?00 a.m. to 4?00 p.m. on weekdays.

　　A. provides B. is providing

　　C. has provided D. provided

　　[解析]along with 作主語，謂語動詞采用就前一致原則。

　　[答案]A

　　23.The number of people in the world ________ about 6 billion and large quantities of waste ________ each year.

　　A. total; has been produced B. totals; is produced

　　C. totals; are produced D. total; are being produced

　　[解析]the number of 作主語，謂語采用單數(shù)形式;quantities of 作主語，謂語采用復數(shù)形式。

　　[答案]C

　　24.Every possible means ________ to prevent the air pollution, but the sky is still not clear.

　　A. is used B. are used

　　C. has been used D. have been used

　　[解析]means 被 every 修飾，該處為單數(shù)形式，故謂語動詞用單數(shù)。

　　[答案]C

　　25.It is reported that more than two ________ died in the accident.

　　A.hundred people B.hundreds people

　　C.hundred peoples D.hundreds peoples

　　[解析]有些考生認為 two 后面的名詞應(yīng)用復數(shù)，于是錯選B、C或D。事實上，hundred 為數(shù)詞，表示確切的數(shù)量時，用單數(shù)形式;當后面接介詞 of 表示概數(shù)時用復數(shù)形式。people 意為“人們”時本身是復數(shù)概念，若加­s則意為“民族”。因此正確答案為A。

　　[答案]A

　　26.He spoke at the meeting and said that three years in high school ________ not long.

　　A.be B.are C.is D.been

　　[解析]有些考生認為從句的主語是“three years”，謂語動詞應(yīng)用復數(shù)形式，于是錯選B。其實，表示時間、距離、溫度等單位的名詞往往被看做一個整體，其作主語時，謂語動詞應(yīng)用第三人稱單數(shù)形式，故正確答案為C。

　　[答案]C

　　27.She collected ________ I did for the Hope Project the other day.

　　A.three times as many money as B.three times much money than

　　C.three times more money than D.three times many more money

　　[解析]有些考生可能會認為A項符合倍數(shù)的表達方法，從而錯選A。事實上，money 為不可數(shù)名詞，A、D項首先被排除;B、C中都出現(xiàn)了 than，形容詞應(yīng)用比較級，所以B項不對，故正確答案為C。

　　[答案]C

　　28.In our class, Bill is the only one of the students who ________ from America.

　　A.come B.comes

　　C.have come D.are

　　[解析]有些考生認為先行詞是“students”，從句的謂語動詞應(yīng)用復數(shù)形式，從而將答案誤選為A、C或D。事實上，當 one of 前面有 the very, the only, the best 等修飾語時，其后的定語從句的謂語動詞的形式由 one 來決定，故正確答案為B。

　　[答案]B

　　29.Our headmaster and secretary of the Party branch ________ going to Beijing this evening.

　　A.be B.are

　　C.is D.will be

　　[解析]有些考生認為主語是“Our headmaster and secretary of the Party branch”，為兩個人，謂語動詞應(yīng)用復數(shù)形式，因而錯選B。其實，此處“secretary”前沒有限定詞，故此處主語是指一個人，謂語動詞用單數(shù)形式，再根據(jù)句子結(jié)構(gòu)可知此處用 is going to 表示“將要去”，故正確答案為C。

　　[答案]C

　　30.Each boy and each girl ________ to help the old man.

　　A.want B.is wanting

　　C.are wanting D.wants

　　[解析]“each+單數(shù)名詞+and each+單數(shù)名詞”作主語時謂語動詞用單數(shù)形式。再根據(jù)語境可知此處應(yīng)用一般現(xiàn)在時，故正確答案為D。句意：男孩、女孩都想幫助那位老人。

　　[答案]D