40.（2007山東）Please remain __________ until the plane has come to a complete stop.
A. to seat B. to be seated C. seating D. seated
答案：D
解析：seat是及物動(dòng)詞，后常接反正代詞作賓語。表示“坐下”時(shí)，常用be seated。remain和be一樣都是系動(dòng)詞，后接動(dòng)詞+ed形式，表示“在飛機(jī)完全停下來前要坐在自己的座位上”。

41.（2007安徽）John received an invitation to dinner, and with his work __________, he gladly accepted it.
A. finished B. finishing C. having finished D. was finished
答案：A
解析：“with+復(fù)合結(jié)構(gòu)”在句中表示狀態(tài)或說明背景情況，常作伴隨、方式、原因、條件等狀語，該結(jié)構(gòu)由“名詞(代詞)+不定式、形容詞、副詞、介詞短語，動(dòng)詞+ing形式，動(dòng)詞+ed形式等”構(gòu)成?！皐ith+名詞+動(dòng)詞+ed形式”強(qiáng)調(diào)名詞是動(dòng)詞+ed動(dòng)作的承受著或動(dòng)作已發(fā)生。his work與finish是被動(dòng)關(guān)系，用過去分詞作賓語補(bǔ)足語，表示工作被完成了。

42.（2007安徽）— Robert is indeed a wise man.
— Oh, yes. How often I have regretted __________ his advice.
A. to take B. taking C. not to take D. not taking
答案：D
解析：regret后接動(dòng)詞+ing校內(nèi)公示作賓語，表示后悔已經(jīng)做某時(shí)。根據(jù)所提供的情景可判斷出，表示“好多次我都后悔沒聽他的勸告”。所以要用動(dòng)詞+ing形式的否定式。regret后接不定式作賓語表示“為……抱歉，遺憾”。

43.（2007北京）He is a student at Oxford University, __________ for a degree in computer science.
A. studied B. studying C. to have studied D. to be studying
答案：B
解析：根據(jù)he與study的關(guān)系可判斷出要用動(dòng)詞+ing形式作狀語，表示主動(dòng)。

44.（2007福建）Jenny hopes that Mr. Smith will suggest a good way to have her written English __________ in a short period.
A. improved B. improving C. to improve D. improve
答案：A
解析：have sth. done表示“使某時(shí)被做”，根據(jù)written English與improve的關(guān)系可判斷出要用動(dòng)詞-ed形式作賓語補(bǔ)足語，表示“使她的英語書面表達(dá)得到改善”。

45.（2007福建）— Come on, please give me some ideas about the project.
— Sorry. With so much work __________ my mind, I almost break down.
A. filled B. filling C. to fill D. being filled
答案：B
解析：根據(jù)work與fill的關(guān)系可判斷出要用動(dòng)詞-ing形式作賓語補(bǔ)足語，表示“工作的事占滿了我的頭腦”。

46.（2007湖南）“Things __________ never come again!” I couldn’t help talking to myself.
A. lost B. losing C. to lose D. have lost
答案：A
解析：根據(jù)things與lose的關(guān)系可確定用動(dòng)詞+ed形式作定語，表示被動(dòng)，意為“丟失的東西”。

47.（2006上海）Russ and Earl were auto mechanics __________ the same pay, but Earl had more ambition.
A. to earn B. to have earned C. earning D. earned
答案：C
解析：本題考查非謂語動(dòng)詞。根據(jù)句意“Russ和Earl都是汽車修理工，賺的錢一樣多，但是Earl更有抱負(fù)”，分詞earning在句中修飾auto mechanics，原句的意思相當(dāng)于“Russ and Earl were auto mechanics who earn the same pay…”，所以C選項(xiàng)為正確答案。

48.（2006上海）The mother felt herself __________ cold and her hands trembled as she read the letter from the battlefield.
A. grow B. grown C. to grow D. to have grown
答案：A
解析：本題考查非謂語動(dòng)詞。本句的句意為“當(dāng)母親讀著戰(zhàn)場(chǎng)上的來信時(shí)，覺得渾身發(fā)冷……”。在感覺動(dòng)詞和使役動(dòng)詞后，要用省略to的動(dòng)詞不定式作賓語補(bǔ)足語，所以A選項(xiàng)為正確答案。

49.（2006上海）__________ automatically, the e-mail will be received by all the club members.
A. Mailed out B. Mailing out C. To be mailed out D. Having mailed out
答案：A
解析：本題考查非謂語動(dòng)詞。當(dāng)分詞作狀語時(shí)，究竟用現(xiàn)在分詞還是過去分詞，取決于分詞與邏輯主語的關(guān)系，根據(jù)句意“這封電子郵件自動(dòng)發(fā)出后，俱樂部所有成員都會(huì)收到”，作狀語的分詞短語和它的邏輯主語the e-mail之間為動(dòng)賓關(guān)系，所以應(yīng)該用過去分詞形式，A選項(xiàng)為正確答案。