8. Large quantities of meat________ sold in that store at the present time.

A. are being　　　　　　　　　　　　　　　　　 B. is being

C. will be　　　　　　　　　　　 　　　　　　　　D. is

[解析]选A。考查主谓一致和被动语态。quantity作主语时, 应视quantity本身单复数形式而定, 排除B、D两项, 由时间状语at the present time( 现在) 排除C项。

7. -Why do you look so worried?

-My computer broke down and my work_______ unfinished since.

A. was left　　　　　　　　　　　　　 B. has left

C. left　　　　　　　　　　　　　　　　 D. has been left

[解析]选D。考查时态和语态。由答句中的since可知应用现在完成时, 故排除A、C两项, 因my work与leave之间为被动关系, 故选D项。

6. Large quantities of water________ for irrigation.

A. is needed　　　　　　　　　　 B. has needed

C. are needed　　　　　　　　　 D. need

[解析]选C。句意: 灌溉需要大量的水。a quantity of/quantities of无论修饰不可数名词还是修饰可数名词复数, 作主语时, 谓语动词取决于quantity的数。large quantities为复数, 谓语动词用复数；且water与need之间为动宾关系, 用被动语态。因此选C。

5. Harry Potter,　 together with his friends, ______ that it is not always easy to do what is right.

A. learns　　　　 B. learn　　　　　 C. learned　　　　　 D. have learned

[解析]选A。考查主谓一致和时态。当主语后出现together with/with/as well as等介词短语时, 谓语动词的数与介词短语前的主语保持一致。故排除B、D两项；根据后面从句时态可知应用一般现在时态。

4. More than a dozen students in that school_______ abroad to study foreign language last year.

A. sent　　　　　　　　　　　　　　　　 B. were sent

C. had sent　　　　　　　　　　　　 D. had been sent

[解析]选B。句意: 去年那个学校的至少十二名学生被送到国外去学习外语。last year去年, 为一般过去时的时间状语, 排除C、D两项；另外句子主语students与send之间为动宾关系, 且more than+ 可数名词复数作主语, 谓语动词用复数。综上所述, 选B。

3. Each soldier and each sailor_______ a rifle.

A. are given　　　　　　　　　 　B. was given

C. being given　　　　　　　　 D. were given

[解析]选B。句意: 每位士兵和海员发了一杆来复枪。each. . . and each. . . 连接两个单数名词作主语, 谓语动词用单数；且soldier和sailor与give之间为动宾关系, 因此选B。

2. -Why did you leave that position?

-I________ a better position at IBM.

A. offer　　　　　　　　　　　　　　　 B. offered

C. am offered　　　　　　　　　　 D. was offered

[解析]选D。句意: --你为什么辞职? --我在IBM找到了一个更好的职位。I和offer之间为动宾关系, 用被动语态；且did为过去式, 因此选D　 。

1. He will stop showing off,　 if no notice______ of him.

A. is taken　　　　　　　　　　　　 B. will be taken

C. taken　　　　　　　　　　　　　　 D. has taken

[解析]选A。句意: 如果没人注意他, 他会停止炫耀自己。主句为将来时, 条件状语从句用一般现在时表将来。另外, notice和take之间为动宾关系, 因此选A。

12. -Is this a really difficult problem to deal with?

-Yes,　 it is a special situation we do not_______ very often.

A. come about　　　　　　　　　　　　　 B. come across

C. come up 　　　　　　　　　　　　　　　　D. come out

[解析]选B。句意: --这真的是一个难题吗? --是的, 这是一个不常遇到的难题。come about发生；come across理解；偶然遇见某人或某事；碰见；come up长出；出版；发生；come out出现；露出；开花；传出；透露；说出, 讲出, 选B。

Grammar

11. All possible means_______ . However,　 nothing can _______Jack from adventuring in that mysterious forest.　

A. has tried; stop　　　　　　　　　　　　　　　 B. has been tried; keep

C. have tried; keep　　　　　　　　　　　　　 D. have been tried; prevent

[解析]选D。考查主谓一致。句意: 千方百计也无法阻止杰克到密林中去探险。由means短语修饰名词作主语, 谓语根据意义一致原则可知, every means谓语动词用单数；all means谓语动词用复数。