281.It was a nice meal,______ a little expensive.

A. though B. whether C. as D. since

答案：A

282. ______ volleyball is her main focus, she’s also great at basketball.

A. Since B. Once C. Unless D. While

答案：D

283.If a lot of people say a film is not good, I won’t bother to see it, or I’ll wait ______ it comes out on DVD.

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

答案：D

284.The police officers in our city work hard ______ the rest of us can live a safe life.

A. in case B. as if C. in order that D. only if

答案：C

285.Please call my secretary to arrange a meeting this afternoon, or ______ it is convenient to you.

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

答案：A

286.One Friday, we were packing to leave for a weekend away ______ my daughter heard cries for help.

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

答案：D

287.It was April 29, 2001 ______ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.

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

答案：B

288.Frank insisted that he was not asleep ______ I had great difficulty in waking him up.

A. whether B. although C. for D. so

答案：B

289.As it reported, it is 100 years ______ Qinghua University was founded.

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

答案：D

290.No matter how ______, it is not necessarily lifeless.

A. a desert may be dry B. dry a desert may be C. may a desert be dry D. dry may a desert be

答案：B

291.He had no sooner finished his speech ______ the students started cheering.

A. since B. as C. when D. than

答案：D

292.The new stadium being built for the next Asian Games will be ______ the present one.

A. as three times big as  B.three times as big as C. as big as three times D.as big three times as

答案：B

293.______ regular exercise is very important, it’s never a good idea to exercise

too close to bedtime.

A.It    B. As     C.Although    D.Unless

答案：C

294.______ all of them are strong candidates, only one will be chosen for the post.

A. Since B. While C. If D. As

答案：B

295.He had his camera ready ______ he saw something that would make a good picture.

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

答案：C

296.To show our respect, we usually have to take our gloves off ______ we are to shake hands with.

A.whichever  B.whenever  C.whoever  D.wherever

答案：C

297.Jack wasn’t saying anything, but the teacher smiled at him ______ he had done something very clever.

A .as if  B. in case  C. while  D. though

答案：A

298.Tim is in good shape physically ______ he doesn't get much exercise.

A. if B. even though C. unless D. as long as

答案：B

知識點：考查狀語從句。

解析：句意為：“盡管Tim不經常鍛煉，但他身材很好?！鼻昂笫亲尣睫D折關系，故選B項。

299.The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.

A. once  B. when  C. if  D. unless

答案:D

知識點：本題考查省略的狀語從句的連接詞。

解析：句意應為“學校規(guī)章規(guī)定：除非有成年人陪同，否則孩子們在校期間不能出學校.”表示“除非”用unless。該句式構成了“連詞+過去分詞”結構。

300.______ you may have, you should gather your courage to face the challenge.

A. However a serious problem   B. What a serious problem  C. However serious a problem   D. What serious a problem

答案：C

知識點：讓步狀語從句

解析：根據句意“無論你有多么嚴重的問題，你都應該鼓起勇氣面對挑戰(zhàn)”，而however表讓步時其順序應是：however + 形容詞 + 主語 + 謂語。however做連接副詞，相當于no matter how,后接形容詞或副詞，意為“無論、不管” ，引導讓步狀語從句，其序為“however+形容詞、副詞+主語+謂語”。