241.How can you keep fit ______ you smoke so much?

A．as B．while C．when D．for

答案 C

242.一Do you mean we are almost running out of food?

一Yeah. ______ the canned and frozen foods are used up

A．as soon as B．as far as C．as much as D．as well as

答案 A

243.—Shall I ______ the raincoat?

—No hurry. Leave it ______ it is. It looks like rain.

A. put on; there B. put on; where

C. put away; in the place D. put away; where

答案 D

244.______ we can’t remove our troubles in life for ever, we can leave them behind when we are on vacation.

A. When B. While C. Unless D. Until

答案 B

245.How did you get there on time ______ you left here so late?

A．when B．while C．even if D．as if

答案 A

246.Forceful measures have been taken for the reconstruction，but it maybe sometime ______，we see an entirely new Wenchuan

A before B when C，since D．until

答案 A

247.How long do you suppose it is ______ he arrived there?

A.when B.before C.after D.since

答案 D

248._____ you told me, I heard nothing of what had happened.

A. Unless B. Until C. After D. When

答案 B

249.______ most people support the ban，some doubt whether it is the best way to solve traffic jams．

A．Unless B．When C．If D．While

答案 D

250.Never hesitate to contact us— ______ you have any items that are puzzling you.

A. because B. unless C. while D. when

答案 D

251.—Jennifer，would you take a picture for us?

—Sorry，______ I take pictures，they usually come out dull.

A.before B.until C.when D.since

答案 C

252.As long as I can remember，______ I called，his wife would answer the phone.

A.however B.whenever C.whatever D.whichever

答案 B

253.______ ，I could not memorize the text.

A.However hard did I try B.However hard I tried

C.However I tried hard D.However I had tried hard

答案 B

254.—It is hard to find a jod today.

—I might at least get some work experience ______ I don’t get a good job.

A.so that B.in case C.now that D.even if

答案 D

255.—Our holiday cost a lot of money.

—Did it? Well，that doesn’t matter ______ you enjoyed yourselves.

A.unless B.as far as C.as long as D.until

答案 C

256.The project won’t carry on ______ we can get financial aid from the government.

A.unless B.though C.whether D.until

答案 A

257. I don't think Maria will be disappointed at the news，but I will see her ______ she is.

A.as if B.so that C.in case D.even though

答案 C

258.If you want to do the job once more，you’d better be more careful ______ you make mistakes.

A.where B.in case C.so that D.when

答案 B

259.If I were rich，I should help them out. ______，I can do nothing.

A.As is often the case B.As is it

C.As the case is often C.As it is

答案 D

260.The influence of automobile extends throughout the economy ______ the car is so important to American people.

A.then B.as C.so D.which

答案 B