(2)________ this medicine, you will be all right .

　　 　 (3)________ this medicine, it will cure you of your illness.

　　　　 A. To take　 B. Take　　 C. Taking　 D. If you take

辨析：(1)题的答案为B，and 连接两个并列分句，前面的祈使句此时相当于一个条件从句。再如：

Go through the gate and you’ll find the entrance to Bear Country on the other side.(SEFC, SB2A ,P1)

(2004湖北)______ straight on and you’ll see a church. You won’t miss it.

A.　 Go　　　　 B. Going　　　 C. If you go　　　 D. When going　　　 (A)

(2000春招)______ some of this juice ----perhaps you’ll like it.

A .Trying　　 B. Try　　 C. To try　　　　 D. Have tried　　　 (B)

(2001上海春招))_______ blood if you can and many lives will be saved.

A. Giving　　 B. Give　 C. Given　　　　 D. To give　　　　 (B)

注意：若前面句意明确时，还可以省略动词，只用名词形式。如：

(1999上海)One more week, ________ we will accomplish the task.

A. or　　　　 B. so that　　 C. and　　 D. if　　　　　　　　 (C)

另外，若是相当于否定的条件从句，则用 or 连接。如：　　

Hurry up, or you’ll be late.(= If you don’t hurry up, you’ll be late.)

(2)题的答案为C或D，选C时，现在分词短语做状语。再如：

(2000上海)He sent me an e-mail, _______ to get further information.

A. hoped　 B. hoping　 C. to hope　　 D. hope　　　　　　　 (B)

(3)题的答案为D，if引导条件状语从句。再如：

(NMET2000) The WTO cannot live up to its name_______ it does not include a country that is home to one fifth of mankind.

A. as long as　　 B. while　　 C. if　　　 D. even though　　　　 (C )

注意：(3)题不能选C，因为逻辑主语不一致。

　　　 　 (2)He has made a suggestion that the English test _______ until next Wednesday.

　　　　 A. put off　 B. be put off　　 C. will put off　　 D. will be put off

辨析：(1)题的答案为D， that引导同位语从句。

(2)题的答案为B， that也引导同位语从句，但是当前面的名词意义为“命令、请求、建议”(如advice, suggestion, proposal, requirement, request, order等)时，从句中必须用虚拟语气形式。

　　 　 (2) This is ______ film (that) I’ve ever seen.

　　　 　 A. a better　　 B. the better　 C. a best　　 D. the best

辨析：(1)题的答案为A，比较级形式表示最高级的含义。再如：

(NMET1996) How beautifully she sings! I have never heard ______.

A. the better voice B. a good voice C. the best voice D. a better voice　 (D)

(1997上海) –Are you satisfied with her answer?

　　　　　 --Not at all. It couldn’t have been ________.

A. worse　　 B. so bad　　　　 C. better　　　 D. the worst　　　 (A)

(NMET2002) Boris has brains. In fact, I doubt whether anyone in the class has ____IQ.

A. a high　　　 B. a higher　　 C. the higher　　 D. the highest　　 (B)

(2)题的答案为D。最高级。

　　　 (2)It is the first time (that)we ______ the film.

　　 　 (3)It was for the first time that we _____the film.

　　　 A. see　　 B. saw　　　　 C. have seen　　 D. will see

辨析：(1)题的答案为B，用虚拟语气，全句意思为“我们早该看一场电影了。” (2)题的答案为C，要用现在完成时(到现在为止)。全句意思是“我们是第一次看这部电影。”再如：

(NMET1992) “Do you know our town at all?”

“No, this is the first time I _____ here.”

A. was　　　 B. have been　 C. came　　　 D. am coming　　　　　　 (B)

(3)题答案为B，强调句式。

　　 　　 (2) “You missed the early bus yesterday morning.” “______”.

　　　 　 (3) I promised to buy him a pen and ______.

A. So I did　　　　 B. So did I　　 C. I did so　 D. I so did

辨析：(1)题的答案为B， So did I 表“我也同样如此”。

(2)题的答案为A， So I did 表“我的确如此/是这样”。再如：

(2002上海)--- You forgot your purse when you went out.

--- Good heavens, _______.

A. so did I　　　 B. so I did　　　 C. I did so　　 D. I so did　　　　　 (B)

(3)题答案为C， I did so表“我(按别人的要求或自己的许诺)那么做了”。

　　　　 (2)______ his wife was there, I said nothing about it.

　　　　 (3)______ his wife there, I said nothing about it.

　　　　 A. Because　　 B. With　　　 C. Because of　　 D. for

辨析：(1)题选C,-ing形式复合结构his wife’s being there做Because of的宾语

(2)题选A, Because引导原因状语从句

(3)题选B, With 后接复合宾语，做原因状语。再如：

(2004北京) ______ two exams to worry about, I have to work really hard this weekend.

A. With　　 B .Besides　　 C .As for　　 D .Because of　　　　 (A)

(NMET2000)_______ production up by 60﹪, the company has had another excellent year.

A. As　　　　　　 B. For　　　　　 C. With　　　　 D. Though　　　 (C)

　　　　 (2)_______ he said so made us very surprised.

　　　　 A. That　　 B. What　　 C. If　　　 D. Whether

(1)题答案为B， what引导主语从句，在从句中做said的宾语。再如：

(2002上海)______ she couldn’t understand was _______ fewer and fewer students showed interest in her lessons.

A. What, why　　 B. That, what　　 C. What , because　　 D. Why, that　　 (A)

(NMET1996) ______ we can’t get seems better than ______ we have.

A. What, what　 B. What, that　 C. That, that　 D. That, what　　　　　 (A)

(2)题答案为A 。That 引导主语从句，在从句中不充当任何成分(said的宾语是 so)。

　　　　 (2) I’m thinking of _________ we can do more for the people.

　　　　 A. if　　 B. that　 C. what　　 D. how

(1)题答案为C，what引导宾语从句，在从句中做do的宾语。再如：

(2003春招) People have heard what the president has said; they are waiting to see ______ he will do,

A. how　 B. what　　 C. when　　　 D. that　　 (B)

(2002春招) ---I thinking it’s going to be a big problem.

　　 ---- Yes, it could be.

　　 ----I wonder _______ we can do about it.

A. if　　 B. how　　 C. what　　　 D. that　　　 (C)

(2)题答案为D，how引导宾语从句，在从句中做状语。再如(do的宾语是 more) ，另外，if(是否)引导宾语从句不做介词的宾语。

　　　　 (2) I don’t know _______ they are getting on well with their studies.

　　　 A. what　 B. that　 C. how　　 D. whether

辨析：(1)题答案为C，意为“学习进展怎样”。

(2) 题答案为D，意为“学习是否进展好”。

　　　　 (2) You can give the book to ________ you like.

　　　　 (3) You can give the book to ________ likes it. .　　　 (4) You can give the book to ________ of them likes it

　　　　 (5) I’ll try my best to help him, _______ turns to me for help.

　　 　 A. whoever　　 B. whomever　 C. who　 D. whichever　 E. no matter who

辨析：(1)题答案为C。who引导宾语从句。在从句中做主语。

(2)题答案为B。whomever (=anyone who)引导宾语从句，在从句中做宾语。

(3)题答为A。whoever(=anyone who) 引导宾语从句，在从句中做主语。再如：

(NMET1999)______ has helped to save the drowning girl is worth praising.

A. Who　　 B. The one　 C Anyone　 D. Whoever　　 (D)　

(4)题答案为D, whichever强调一定范围之内的选择。再如：

(2000上海春招)Eat ______ cake you like and leave the others for _____ comes in late.

A. any, who　 B. every, whoever　 C. whichever, whoever　 D. either, whoever (C)

(5)题答案为A或E，此时whoever = no matter who,引导让步状语从句。