【正文】 so he ________(attend)your lecture.解析　can39。t(couldn39。t)have done表示對過去的否定性推測，意為“不可能”。所提供的情境My sister met him at the Grand表示他不可能參加講座。答案　couldn39。t have attended10．He hesitated for a moment before kicking the ball，otherwise he ________(score)a goal.解析　根據(jù)otherwise可以判斷出要用虛擬語氣表示過去發(fā)生的事要用would have scored。答案　would have scored11．Oh，I39。m not feeling well in the ________(eat)so much fried chicken just now.解析　just now是表示過去的時間狀語。情態(tài)動詞在表示過去發(fā)生的事時，必須用“情態(tài)動詞＋have＋過去分詞的形式”。答案　shouldn39。t have eaten12．A left－luggage office is a place where bags ________ be left for a short time，especially at a railway station.解析　句意：行李寄存處是能夠暫時存放行李的地方，尤其是在火車站。此處用can表示可以、能夠。答案　can13．Keep up good state of mind even if you ________ fail plenty of times.解析　考查should的用法。should用在if或even if引導(dǎo)的表示條件的從句中，表示一件事聽起來可能性很小，但也不是完全沒有可能，相當(dāng)于“萬一”的意思，從句謂語由should加動詞原形構(gòu)成，主句不一定用虛擬語氣。答案　should14．—It39。s the office！So you ________ know eating is not allowed here.—Oh，sorry.解析　從前后文可知，此處是一種很肯定的推測。答案　must15．But for the help of my English teacher，I ________(win)the first prize in the English Writing Competition.解析　此處虛擬語氣表示與過去事實相反，句子謂語動詞用would/should/could/might＋have done結(jié)構(gòu)，根據(jù)句意要用否定含義，本句的條件是由介詞短語(but for)表達(dá)的。答案　would not have won16．There ________ be any difficulty about passing the road test since you have practised a lot in the driving school.解析　根據(jù)經(jīng)驗或慣例對某一情況進(jìn)行推測，用should或ought to，常譯成“按理應(yīng)該……”或“可能會……”。shouldn39。t是其否定形式。答案　shouldn39。t17．—Is John ing by train.—He should，but he ________ likes driving his car.解析　e，go，leave，start等趨向動詞的進(jìn)行時表示將來時，所以答語是對這一將來動作做出的推斷。may not“可能不，不一定”，根據(jù)he likes driving his car可以看出John可能乘火車來，也可能自己開車來。答案　may18．It is hard for me to imagine what I would be doing today if I ________(fall)in love，at the age of seven，with the Melinda Cox Library in my hometown.解析　根據(jù)句意和I would be doing可以判斷這是虛擬語氣。at the age of seven是表示過去的時間狀語，if從句中的謂語要用had not fallen，表示對過去情況的假設(shè)。答案　had not fallen19．You can39。t imagine that a well－behaved gentleman ________ be so rude to a lady.解析　should用于表示感情，意向等句中的that從句，表示“竟然……，居然……”，出乎意料。答案　should20．What would have happened ________(walk)，as far as up to the river bank.解析　因為主句的謂語動詞用了would have happened，所以從句的謂語動詞要用過去完成時。在虛擬語氣中，如果條件狀語從句中的if省略，該句要倒裝。答案　had Bob walked farther(或if Bob had walked farther)實戰(zhàn)演練與答案解析填入情態(tài)動詞的恰當(dāng)形式或根據(jù)括號所提供的詞填入情態(tài)動詞恰當(dāng)?shù)慕Y(jié)構(gòu)。1.I should have been there, but I ____________ find the time.2.Helen _______ go on the trip with us, but she isn’t quite sure yet.3.Tom, you ___________ not leave all your clothes on the floor like this!4.You can’t imagine that a well behaved gentleman _____________ be so rude to a lady.5.It has been announced that candidates_____________ remain in their seats until all the papers have been collected.6.Lucy doesn’t mind lending you her dictionary.She ____________. I’ve already borrowed one.7.John, look at the time. _______________ you play the piano at such a late hour?8.__________ this book be yours?No, it ____________ not be mine. It ___________ be his.9.As a girl, she ____________ get up at six every day.10.__________ he to clean the classroom after school?11.You ____________ be tired after the long trip, aren’t you?12.What’s the name?Khulaifi. __________ I spell that for you?13.You _____________________ (see) the film, haven’t you?14.You _____________________ (talk) on the phone at that time, for I couldn’t get through.15.They _____________________ (miss) the plane, or perhaps they have been prevented from ing for some reason.16.______________ you pass the college entrance examinations!17.He had known the matter before you told him, so you _____________________ (not tell) it to him.18.I did not call to make any airline reservation but I ________________.19.The light is out. They _______________________ (not work) now.20.My cat is really fat.You _____________________ (not give) her so much food.答案：1. couldn’t2. may3. mustn’t4. should5. shall6. needn’t7. Must8. Can。 can’t。 must 9. would 10. Ought11. must12. shall have seen14. must be talking 15. might/might have missed 16. May 17. needn’t have told18. should have19. can’t be working20. shouldn’t have given