九年級(jí)英語全冊Unit7Teenagersshouldbeallowedtochoosetheirownclothes語法透視含情態(tài)動(dòng)詞的被動(dòng)語態(tài)素材人教新目標(biāo)版(new)

1、unit 7 teenagers should be allowed to choose their own clothes【語法透視】:含情態(tài)動(dòng)詞的被動(dòng)語態(tài)1。含情態(tài)動(dòng)詞的被動(dòng)語態(tài)的基本結(jié)構(gòu)為“情態(tài)動(dòng)詞+be+及物動(dòng)詞的過去分詞”。many trees should be planted on the mountains。 應(yīng)該在樹上植許多樹。students should be allowed to go to school by bike.應(yīng)該允許學(xué)生們騎自行車上學(xué).2.把含情態(tài)動(dòng)詞的主動(dòng)句變成被動(dòng)句，即把“情態(tài)動(dòng)詞+動(dòng)詞原形”改為“情態(tài)動(dòng)詞+be+過去分詞”，此時(shí),作主語的要用動(dòng)詞承受

2、者。we should clean the classroom every day。 the classroom should be cleaned every day. 3。句式的轉(zhuǎn)換(1）否定句:在情態(tài)動(dòng)詞后加not就行。these books cant be read for children。 這些書孩子們不能讀。(2）一般疑問句：直接將被動(dòng)語態(tài)的陳述句的情態(tài)動(dòng)詞提到的句首。should ann be allowed to wear her own clothes? 應(yīng)該允許安選擇自己的衣服嗎?(3)特殊疑問句：由疑問詞加上含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)的一般疑問句構(gòu)成。when must m

3、y homework be handed in? 我的作業(yè)必須何時(shí)交？4.對(duì)含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)的一般疑問句的回答, 一般應(yīng)保留原句中的情態(tài)動(dòng)詞，但must表示“必須”時(shí)，其否定回答用neednt。should my homework be finished today？ 我的作業(yè)應(yīng)在今天完成嗎？-yes, it should。/no, it shouldnt。 是的，應(yīng)在今天完成./不，不應(yīng)在今天完成。must the room be cleaned right now? 房間必須馬上打掃嗎？yes， it must。/no, it neednt. 是的，必須立即打掃。/不，不必立即打掃。

4、典例題解例1teenagers should to choose their own clothes. a。 allow b。 to allow c. be allowed d。 allowed解析c。主語teenagers是動(dòng)作allow的承受者，再根據(jù)should確定要用情態(tài)動(dòng)詞的被動(dòng)語態(tài)，即“情態(tài)動(dòng)詞+be+過去分詞.例2-what should we do first if we want to develop our village？a lot of new roads ， i think. a. have to build b. must build c. have built d

5、. must be built解析d。new roads是動(dòng)作build的承受者，應(yīng)用被動(dòng)語態(tài)。含must的情態(tài)動(dòng)詞的被動(dòng)語態(tài)為“must+be+情態(tài)動(dòng)詞。例3this kind of food_cool, clean and dry according to the instruction。 a。 should be carried b. must be put c. should be placed d。 must be kept解析d。根據(jù)句意，主語food是動(dòng)作的承受者,用被動(dòng)語態(tài)，而空格后的cool是形容詞，而“keep+某物+形容詞”意為“使保持狀態(tài)”,故選d。例4smoking

6、_ in public places, so dont smoke here。 a。 allows b. is allowed c. doesnt allow d。 isnt allowed解析d.主語smoking是動(dòng)作allow的承受者，排除a和c。由so dont smoke here可知這兒禁止吸煙，故選d.語法精練 i. 用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空。1。how many magazines _（can borrow） in your library every week？2.in many countries， teenagers under 18 _(should not al

7、low） to go into internet bars。 3。some people think trees _（should plant） on tree planting day only. 4。the flowers _（must water) every day. 5。a dictionary _（can use） in the exam。 ii。同義句轉(zhuǎn)換，每空一詞。1.students should clean their classroom every day。 their classroom _ _ _ every day. 2。can you mend this radi

8、o？_ this radio _ _？3。we should not allow fifteenyear-olds to work at night. fifteen-yearolds _ _ _ to work at night。 4.who should be asked to volunteer at your local school? who should _ _ to volunteer at your local school?5.they grow tea in the southeast of china. tea _ _ in the southeast of china.

9、 iii.根據(jù)漢語提示，完成下列句子.1。many tall buildings _（可以看見)everywhere in our city. 2.all the work _(應(yīng)該做） as soon as possible。 3。waste-paper _(不應(yīng)該扔）here. 4._rice_(能種植) in winter？5。_the letters _(必須打) this afternoon?參考答案i.1.can be borrowed 2.shouldnt be allowed 3.should be planted 4.must be watered 5.can be used

10、 ii.1.should be cleaned 2.can， be mended 3。shouldnt be allowed 4.you ask 5。is grown iii.1.can be seen 2。 should be down 3.shouldnt be thrown 4.can， be grown 5.must， be typed 尊敬的讀者：本文由我和我的同事在百忙中收集整編出來，本文檔在發(fā)布之前我們對(duì)內(nèi)容進(jìn)行仔細(xì)校對(duì)，但是難免會(huì)有不盡如人意之處，如有疏漏之處請指正，希望本文能為您解開疑惑,引發(fā)思考。文中部分文字受到網(wǎng)友的關(guān)懷和支持，在此表示感謝！在往后的日子希望與大家共同進(jìn)步，成長。this article is collected and compiled by my colleagues and i in our busy schedule. we proofread the content carefully before the release of this article, but it is inevitable that there will be some unsatisfactory points. if there are omissions, please correct them. i hope this art