初中英語(yǔ)被動(dòng)語(yǔ)態(tài)專項(xiàng)練習(xí)

1、被動(dòng)語(yǔ)態(tài)一、被動(dòng)語(yǔ)態(tài)的定義英語(yǔ)中有兩種語(yǔ)態(tài)：主動(dòng)語(yǔ)態(tài)和被動(dòng)語(yǔ)態(tài)主動(dòng)語(yǔ)態(tài)表示主語(yǔ)是動(dòng)作的執(zhí)行者。如：We speak English. 句子中主語(yǔ) we 是 speak（講）這個(gè)動(dòng)作的執(zhí)行者。被動(dòng)語(yǔ)態(tài)表示主語(yǔ)是動(dòng)作的承受者。 如：English is spoken by them. 句子中主語(yǔ) English 是 speak（講）這個(gè)動(dòng)作的承受者，即英語(yǔ)被講。被動(dòng)語(yǔ)態(tài)相當(dāng)于漢語(yǔ)的 “被”字句。二、被動(dòng)語(yǔ)態(tài)的構(gòu)成英語(yǔ)的語(yǔ)態(tài)是通過動(dòng)詞形式的變化來體現(xiàn)。被動(dòng)語(yǔ)態(tài)的構(gòu)成是：主語(yǔ) +be+動(dòng)詞的過去分詞人稱、數(shù)和時(shí)態(tài)的變化是通過 be 的形式變化來表示。1、記住下面幾種時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)的構(gòu)成：一般現(xiàn)在時(shí)：主

2、語(yǔ) +am/is/are+過去分詞（ +by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）一般過去時(shí)：主語(yǔ) +was/were+過去分詞（ +by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）一般將來時(shí)：主語(yǔ) +will/shall+be+ 過去分詞（ +by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）現(xiàn)在進(jìn)行時(shí)：主語(yǔ)+am/is/are+being+過去分詞（ +by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）過去進(jìn)行時(shí)：主語(yǔ)+was/were+being+過去分詞（ +by+ 動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）現(xiàn)在完成時(shí)：主語(yǔ) +have/has+been+過去分詞（+by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）2、含有情態(tài)動(dòng)詞

3、的被動(dòng)語(yǔ)態(tài)主語(yǔ) +情態(tài)動(dòng)詞 +be+動(dòng)詞的過去分詞（ +by+動(dòng)作的執(zhí)行者）（強(qiáng)調(diào)動(dòng)作的執(zhí)行者）三、被動(dòng)語(yǔ)態(tài)的用法1、怎樣確定該用被動(dòng)語(yǔ)態(tài)？（ 1）不知道或者沒有必要說明動(dòng)作的執(zhí)行者。強(qiáng)調(diào)動(dòng)作的承受者，而不強(qiáng)調(diào)動(dòng)作的執(zhí)行者。我們?cè)谧鲱}時(shí)要注意：如果主語(yǔ)能執(zhí)行這個(gè)動(dòng)作，就用主動(dòng)語(yǔ)態(tài)；主語(yǔ)不能執(zhí)行動(dòng)作，反而要被動(dòng)作去執(zhí)行，這時(shí)就用被動(dòng)語(yǔ)態(tài)。2、用被動(dòng)語(yǔ)態(tài)要注意兩個(gè)問題（ 1）不管是把主動(dòng)語(yǔ)態(tài)變被動(dòng)語(yǔ)態(tài)還是把被動(dòng)語(yǔ)態(tài)變主動(dòng)語(yǔ)態(tài)都要保持時(shí)態(tài)一致（ 2）在主動(dòng)語(yǔ)態(tài)中 make,see,let等省 to 的在被動(dòng)語(yǔ)態(tài)中要加上 to.3、不能使用被動(dòng)語(yǔ)態(tài)的情況：（ 1 ） 不 及 物 動(dòng) 詞 不 能 用 于

4、 被 動(dòng) 語(yǔ) 態(tài) ， 如 ： happen,takeplace,last,cost,change，begin 等（2）當(dāng)直接賓語(yǔ)是反身代詞時(shí)，不能用被動(dòng)語(yǔ)態(tài)連系詞無(wú)被動(dòng)，而是用主動(dòng)形式表示被動(dòng)意義如：feel,taste,smell,sound,look當(dāng)物做主語(yǔ)時(shí)，動(dòng)詞 sell,write,wash,cut 等用主動(dòng)形式表示被動(dòng)意義，說明主語(yǔ)的性質(zhì)、特征?！緩?fù)習(xí)目標(biāo)】理解英語(yǔ)句式中的語(yǔ)態(tài)。掌握初中階段出現(xiàn)的主要時(shí)態(tài)和情態(tài)動(dòng)詞的被動(dòng)結(jié)構(gòu)及他們的用法?！菊n前準(zhǔn)備】要求學(xué)生對(duì)學(xué)過的動(dòng)詞的過去分詞( 不規(guī)則 ) 進(jìn)行記憶?！局R(shí)要點(diǎn)】當(dāng)謂語(yǔ)表示一個(gè)動(dòng)作時(shí)， 它與主語(yǔ)有兩種不同的關(guān)系。 若主語(yǔ)為動(dòng)作

5、的執(zhí)行者時(shí)，主謂之間是主動(dòng)關(guān)系，用主動(dòng)語(yǔ)態(tài)；主語(yǔ)為動(dòng)作的承受者時(shí)，主謂之間是被動(dòng)關(guān)系，用被動(dòng)語(yǔ)態(tài)。被動(dòng)語(yǔ)態(tài)是由助動(dòng)詞 be 加及物動(dòng)詞的過去分詞構(gòu)成，由助動(dòng)詞來表示不同的時(shí)態(tài)。 過去分詞的構(gòu)成分規(guī)則與不規(guī)則兩部分， 規(guī)則動(dòng)詞的過去分詞變化同動(dòng)詞的過去式，不規(guī)則動(dòng)詞的變化見書本。（一）幾種不同的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)1一般現(xiàn)在時(shí)的被動(dòng)結(jié)構(gòu)：be（isamare ）+及物動(dòng)詞的過去分詞eg:This desk is made of wood and metal.English is spoken by more and more people.2一般過去時(shí)的被動(dòng)結(jié)構(gòu)：was/were+及物動(dòng)詞的過去分詞e

6、g:A window was broken yesterday.Those tall buildings were built in 1998.3含情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)結(jié)構(gòu)：情態(tài)動(dòng)詞 +be+ 及物動(dòng)詞的過去分詞eg:The classroom must be kept clean and tidy every day.The book cant be taken out of the reading room.注意以上三種被動(dòng)結(jié)構(gòu)是初中階段的重點(diǎn)，但初中階段同時(shí)也出現(xiàn)了其他結(jié)構(gòu)。見下面。4一般將來時(shí)的被動(dòng)結(jié)構(gòu)：An English party will be held on New Years

7、 Day.Our TV set wont be mended until next Tuesday.5現(xiàn)在進(jìn)行時(shí)的被動(dòng)結(jié)構(gòu)：be（amis are ）+being+ 及物動(dòng)詞的過去分詞eg:A new school is being built.Too many trees are still being cut down.6現(xiàn)在完成時(shí)的被動(dòng)結(jié)構(gòu)：have/has + been +及物動(dòng)詞的過去分詞eg: More than thirty English songs have been taught sinceSeptember.The old man has been sent to the

8、 hospital.在初中階段還出現(xiàn)的另三種時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)，要求理解。7過去進(jìn)行時(shí)的被動(dòng)結(jié)構(gòu)：was/were + being +及物動(dòng)詞的過去分詞eg: At that time the hall was being built.8過去將來時(shí)的被動(dòng)結(jié)構(gòu)：should/would +be +及物動(dòng)詞的過去分詞eg: He said the machine would be invented soon.9過去完成時(shí)的被動(dòng)結(jié)構(gòu)：had+been+及物動(dòng)詞的過去分詞eg：When I remembered and went back for it, the bag had been taken aw

9、ay by someone.（二）被動(dòng)語(yǔ)態(tài)的用法1當(dāng)我們不知道誰(shuí)是動(dòng)作的執(zhí)行者，或者沒有必要指出誰(shuí)是動(dòng)作的執(zhí)行者時(shí)。eg:The old woman was hit when she crossed the street.The apples will be picked next week.2當(dāng)以動(dòng)作的承受者為談話的中心時(shí)。eg: My glasses were broken by my little son.The road must be swept by Class Two.（三）主動(dòng)語(yǔ)態(tài)變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí)應(yīng)注意的幾個(gè)問題。1在hear, see, watch, listen to, lo

10、ok at, feel等感官動(dòng)詞及make, have, let等使役動(dòng)詞的主動(dòng)語(yǔ)態(tài)中，后面接不帶to的不定式。但這些詞變被動(dòng)語(yǔ)態(tài)后， 后面接的不定式須帶to,(let通常不用被動(dòng)語(yǔ)態(tài) )eg: Mum made Bill go to bed early.Bill was made to go to bed early.They watched the children sing that morning.The children were watched to sing that morning.2帶雙賓語(yǔ)的主動(dòng)語(yǔ)帶變被動(dòng)語(yǔ)態(tài)時(shí)，可以把其中一個(gè)賓語(yǔ)變?yōu)楸粍?dòng)結(jié)構(gòu)中的主語(yǔ)， 另一個(gè)賓語(yǔ)保留在謂語(yǔ)

11、后面，多數(shù)是把間接賓語(yǔ)變?yōu)楸粍?dòng)結(jié)構(gòu)的主語(yǔ)。eg:a. Someone will give me a call tomorrow morning.I will be given a call tomorrow morning.A call will be given (to) me tomorrow morning.b. I bought my son a new bike last year.My son was bought a new bike last year.A new bike was bought for my son last year.注意：直接賓語(yǔ)變?yōu)楸粍?dòng)語(yǔ)態(tài)的主語(yǔ)時(shí)， 間

12、接賓語(yǔ)要為某個(gè)介詞( 如：to 、for) 的賓語(yǔ)，介詞 to 可省掉 ( 如例 a), 介詞 for 不能省略 ( 如例b) 。3當(dāng)一個(gè)含有復(fù)合賓語(yǔ) ( 賓語(yǔ) +賓語(yǔ)補(bǔ)足語(yǔ) ) 的句子變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí)，只能把賓語(yǔ)變?yōu)楸粍?dòng)結(jié)構(gòu)的主語(yǔ)，而賓語(yǔ)補(bǔ)足語(yǔ)不動(dòng)。eg: They told him to help me.He was told to help me.We hear her singing a new song.She was heard singing a new song.4動(dòng)詞短語(yǔ)變被動(dòng)語(yǔ)態(tài)時(shí)，短語(yǔ)中的介詞或副詞不能省略。eg: You must take care of your bo

13、oks.Yours books must be taken care of.May I try on the coat?May the coat be tried on?5有些動(dòng)詞的主動(dòng)形式表示被動(dòng)意義。如：cook( 做飯 ) 、print(印刷) 、sell( 讀) 、miss( 丟失 ) 、build( 建造 ) 、copy( 抄寫 ) 等，它們的進(jìn)行時(shí)態(tài)就表示被動(dòng)意義。eg: My bike is missing.This kind of sweat is selling well.再如有些不定式表示性質(zhì)和可能性的形容詞hard, easy, possible等或用于 too.to,

14、enoughto 結(jié)構(gòu)中也表達(dá)被動(dòng)意義。eg: The problem is too hard to work out.The air is bad to breathe.又如在某些動(dòng)詞( 詞組 ) 中，用動(dòng)詞 -ing 形式作賓語(yǔ)，表示被動(dòng)含義。eg: The Tianzi Mountain is worth seeing.【典型例題解析】例 1 The tree _down last night.A. cut B. is cut C. was cut D. cuts解析在該句中，由動(dòng)作的承受者 tree作主語(yǔ)，因此要用被動(dòng)語(yǔ)態(tài)，故先排除 A、D；從 last night看應(yīng)用一般過去時(shí)的被

15、動(dòng)語(yǔ)態(tài)，因此答案為 C。例 2 The village _these years.A. changes B. is changed C. has been changed D. has changed解析change 可作及物動(dòng)詞也可作不及物動(dòng)詞。在該句中作“變化”解時(shí)是不及物動(dòng)詞，不能變被動(dòng)語(yǔ)態(tài)，所以先排除B、C；再?gòu)臅r(shí)間狀語(yǔ)看，要用現(xiàn)在完成時(shí)，所以答案為D。例 3 The classroom is very dirty. It _at once.A. must sweep B. must be swept C. must swept D. must be sweep解析這是一句含有情態(tài)動(dòng)詞

16、的被動(dòng)語(yǔ)態(tài)結(jié)構(gòu)，其結(jié)構(gòu)為：情態(tài)動(dòng)詞+be+及物動(dòng)詞的過去分詞，故符合要求的答案只有B。例 4 Miss Lin said something _into her bag. A. was put B. will put C. is put D. put解析這是一個(gè)復(fù)合句，something 在賓語(yǔ)從句中作主語(yǔ)，它是動(dòng)作的承受者，因此put 要用被動(dòng)語(yǔ)態(tài)，先排除B、D；而主句的謂語(yǔ)動(dòng)詞是一般過去時(shí)， 從句的時(shí)態(tài)也要變一般過去時(shí)，則答案為 A。例 5In the old days, the workers were made_over 12 hoursa day.A. work B. worked

17、C. to work D. to be work解析make 等一些使役動(dòng)詞或感官動(dòng)詞在主動(dòng)語(yǔ)態(tài)中，動(dòng)詞不定式不帶 to, 但在被動(dòng)語(yǔ)態(tài)的句子中要帶to, 所以答案為 C?！具x講例題】例 6 Howmany English songs _in your class since last term?A. taught B. were taught C. have taught D. have been taught解析English songs在句子中作主語(yǔ)，是teach 的承受者，要用被動(dòng)語(yǔ)態(tài)，又從時(shí)間狀語(yǔ)看要用現(xiàn)在完成時(shí)，現(xiàn)在完成時(shí)的被動(dòng)結(jié)構(gòu)為： have/has + been+ 過去分詞，

18、因此答案為D。例 7 -The meeting _in the meeting - room. You cant find the headmaster there.A. is held B. is being held C. was held D. will be held解析meeting 是該句動(dòng)作的承受者，它作主語(yǔ)，此句應(yīng)為被動(dòng)語(yǔ)態(tài)，而從后面一句可以看出謂語(yǔ)要用現(xiàn)在進(jìn)行時(shí)。因此這句應(yīng)為現(xiàn)在進(jìn)行時(shí)的被動(dòng)結(jié)構(gòu)。故答案為B?！菊n內(nèi)追蹤練習(xí)】(B)1 _ rice _in your country?A. Does, grow B. Is, grown C. Does, grown D. Is,

19、 grow (D)2 The boy _before his parents arrived. A. would be operated B. was operatedC. has been operated on D. had been operated on(A)3 -Its Toms birthday next Sunday. Dont forget.-A present _him.A. has been bought for B. has been boughtC. has bought D. has bought for(C)4 There is something wrong wi

20、th my watch. I thinkitneeds_.A. repaired B. repair C. repairing D. to be repair(C)5 Near our school a new park _built up by the end ofthis year.A. has been B. was C. will be D. will have been(B)6 A strangeman was seen _ the shop witha heavy bag.A. come out of B. to come out ofC. came out of D. to co

21、me out【復(fù)習(xí)小結(jié)】、牢記動(dòng)詞的四種變化形式。、弄清各種被動(dòng)結(jié)構(gòu)，重點(diǎn)掌握一般現(xiàn)在時(shí)，一般過去時(shí)和含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)，注意使用被動(dòng)語(yǔ)態(tài)的幾種常出現(xiàn)的特殊情況。、中考時(shí)注意選詞填空的綜合應(yīng)用?！菊n外鞏固練習(xí)】1將下列句子改為被動(dòng)語(yǔ)態(tài)，并根據(jù)情況保留或去掉動(dòng)作的執(zhí)行者1)They will say nothing more about this matter.2)They have made some flowers of silk.3)He wrote a poem.4)The students are planting some trees and flowers.5)They are

22、 to open up a new business next week.6)Children couldn t have done all this damage.7)All of us will see him off at the airport.8)They feed the tigers at the zoo three times a day.9)You must hand in your homework before five.10)People say that she is a good teacher.2. 用所給動(dòng)詞的正確形式填空1)English _ (speak)

23、in many countries.2)Information in short-term memory _ (can, not, keep) verylong.3)After that, one of the lights _ (turn off) and the rat had towait for a short time.4)Just a few years ago, tomatoes _ (believe) to have magicalpowers, making people who ate them fall in love.5)It is said new copies of

24、 the book _ (print) now.6)The old house _ (pull) down next month.7)In the old days, the children _ (take care of) by the motherbecause she did not work outside the house.8)Needless to say, the second list of words _ (can, remember)more easily than the first one.9)She _ (send) to another village when

25、 I got there.10)The teacher said that we _ (give) another chance some timenext month if we failed in the exam.第三講【課外鞏固練習(xí)答案】1將下列句子改為被動(dòng)語(yǔ)態(tài)1)Nothing more will be said about this matter.2)Some flowers of silk have been made by them.3)A poem was written by him.4)Some trees and flowers are being planted by

26、 the students.5)A new business is to be opened up next week.6)All this damage couldn t have been done by children.7)He will be seen off at the airport by all of us.8)The tigers at the zoo are fed three times a day (by them).9)Your homework must be handed in before five (by you).10)It is said that sh

27、e is a good teacher. (That she is a goodteacher is said by them.)2. 用所給動(dòng)詞的正確形式填空1)is spoken2)cannot be kept3)was turned off4)were believed5)are being printed6)will be pulled7)were taken care of8)can be remembered9)had been sent10)would be given初中英語(yǔ)被動(dòng)語(yǔ)態(tài)專項(xiàng)練習(xí)() 1 The Peoples Republic of China _ on Octo

28、ber 1, 1949.A. found B. was founded C. is founded D. was found() 2 English_ in Canada.A. speaks B. are spoken C. isspeaking D. is spoken() 3 This English song_ by the girls after class.A. often sings B. often sangC. is often sang D. is often sung() 4 This kind of car _ in Japan.A, makesB. made C. is

29、making D. is made() 5 New computers _ all over the world.A. is used B. are using C. are used D. have used( )6. Our room must _ clean. A. keep B. be kept C. to be kept D. to keep() 7. -Id like to buy that coat.-Im sorry. _.A. it sold B. its selling C. Its been sold D. ithad been sold() 8. A new house

30、 _ at the corner of the road.A. is building B. is being built C. been built D. be building()9.The key _ on the table when I leave.A. was left B. will be left C. is left D. has been left() 10.Doctors _ in every part of the world.A. need B. are needing C. are needed D. will need()11. His new book_ nex

31、t month.A. will be published B. is publishing C. is being published D.has been published() 12. Japanese _ in every country.A. is not spokenB. are spokenC. is speakingD.is notspeaking() 13. These papers_yet.A. have not written B. have not been writtenC. has not written D. has not been written() 14.Th

32、e sports meet _ be held until next week.A. didnt B.wont C. isnt D. doesnt() 15. -My shoes are worn out.A. Cant they be mended? B. Let me have a look at it.C. How much do they cost? D. Cant they mended?() 16. _ the watch been repaired yet? I badly need it.A.Does B. Has C. Is D. Are() 17. _ these desk

33、s be needed?A. Will B. Are C. Has D. Do() 18. Why _ to talk about it yesterday?A. didnt a meeting hold B. wasnt a meeting heldC. wasnt held a meeting D. a meeting wasnt held() 19. Who was the book_?A. write B. wrote C. writtenD.written by() 20. Where _ these boxes made?A. was B. were C. is D.am()21.

34、 The flowers_often.A. must be water B. must be watered C. must watered D.must water() 22. The books may_ fortwoweeks. A. be kept B. beborrowed C. keep D. borrow() 23 The broken bike_ here by Mr Smith.A. can mend B. can mended C. can be mend D. canbemended()24.The old bridge in my hometown_ next mont

35、h.A. is going to be rebuiltB. will rebuiltC. are going to be rebuiltD. are going to rebuilt() 25. The play _ at the theatre next Sunday.A. is going to be shownB. will shownC. will showD. isshown() 26.The old stone bridge _ next week.A. is going to be rebuilt B. will be rebuild C. are going to berebu

36、ilt D. will rebuild()27. Now these magazines_ in the library for a long time.A. have kept B. are keeping C. have been keeping D. havebeen kept() 28 The pot _ for _ hot water.A. used; keeping B. was used; keeping C. is used; to keep D.are used; keep() 29. Tea _ in the south of China. A. grows B. is g

37、rown C. weregrown D. will grow() 30. The bridges_ two years ago A. is built B. built C. werebuilt D. was built. () 31. Wet clothes are often _ up near a fire in rainy weather.A. hang B. hanged C. hanging D. hung()32. The river smells terrible. People must _ dirty things intoit.A. be stopped to throw

38、B. be stopped from throwingC. stop to throwD. stop from throwing() 33. The teapot _ water.A. is filled with B. filled ofC.fulling of D. filled() 34. Old people must be looked after well and _ politely.A. speak to B. spoken C. speak D. spoken to() 35. Old people must _.A. look after well B. be looked

39、 well after C. looked well after D.be looked after well()36. Newly-born babies_in hospital.A. are taken good careB. are taken good care ofC. take good care ofD. take good care() 37. They were_ at the sudden noise.A. frightening B. frightened C. frighten D. frightens()38. These walls_stone.A. are mad

40、e of B. made ofC. are made into D. made into()39. Jane _ to sing us an American song last Saturday.A. called B. was asked C. told D. was said()40. The papers _ to them. A. were shown B. showC.shown / D. have shown()41. The coat_her sister.A. made to B. were made for C. was made for D. was madeto()42

41、. I _ five minutes to decide whether I should go or not.A. gave B. was giving C. had given D. was given()43. Good care_such things.A. should take of B. shouldbe takenC. should be taking D.should be taken of()44. She will_good care_.A. take; of B. be taken; of C. take; for you D. be taken; of you()45

42、. The teacher made him_ his homework.A. to do B. do C.did D. done()46.The boy_ streets without pay in the old days.A. was made to clean B. made cleanC. made to clean D. wasmade clean()47. These children_dance.A. were seen to B. were seen for C. were seen D. saw to()48. These stones_well.A. are fitte

43、d B. fit C. fits D. is fitted()49. The bike _ 500 yuan.A. was cost B. costed C. cost D. iscosted()50. The important meeting _ on a cold morning last year.A. washad B. was held C. held D. had()51Great changes_ in the past ten years in China.A. took place B. have taken place C. were taking place D. ha

44、dtaken place()52 You cant use the computer, it_.A. was broken down B. is wrong C. is bad D. has broken down()53 Great changes_in our country during the past 20 years.A. have happened B. happenedC. have been happened D.were happened()54 The watch has often _ down.A. sat B. lain C. broken D.fell()56 P

45、lease pass me another cup. This one_.A. is broken B. is breaking C. broke D. broken()57. The story books_ by the writer in the 1960s.A. are written B. were writtenC. are writing D. were writing()58. What time _ the door _ every day?A. does; closed B. does; close C. is; closed D. /; close()59. Can he

46、_himself?A. get dress B. get dressed C. gets dressed D. instead of()60. He fell from his bike and _.A. is hurt B. gets hurt C. got hurt D. hurt()61. Look out, please keep away from the fire, or your trouserswill_A. burnt B. burn C. burning D. get burn()62. The apple_very sweet. A. is tasted B. taste

47、 -C. tastes D.are tasting()63. You_ more beautiful in the light blue shirt. A. see B. watchC. look D. look at()64. What you said _. like a good idea. A. heard B. listened C.sound D. sounded()65. -What do you think of the TV play?-Wonderful.It isworth_ a second time.A. watching B. watched C. seen D.

48、seeing()66.How dirty the tables are! They need_.A. to clean B. clean C. cleaning D. cleaned()67.The book is worth _. A. seeing B. reading C. seen D. read()68.The boy _ off a ladder and hurt himself.a. has fallendownb. was fell downc. has fallenawayd. was fell away()69. Much attention must_ to the development of science andtechnologya. payb. to payc. be