九年級英語Unit7TeenagersshouldbeallowedtochoosetheirownclothesPeriod2SectionA1a_2d導(dǎo)學(xué)案.docx

Unit 7 Teenagers should be allowed to choose their own clothes【學(xué)習(xí)目標(biāo)】1、 語法：含有情態(tài)動詞的被動語態(tài)2、 重難點： 能聽懂含有情態(tài)動詞的被動語態(tài)結(jié)構(gòu)的句型。學(xué)會談?wù)撜Z序和不允許做的事情?！绢A(yù)習(xí)合作探究】1、I dont think sixteen-year-olds should be allowed to drive.(1)sixteen-year-olds 名詞，意為：16歲的青少年，相當(dāng)于sixteen-year-old boys and girls辨析 sixteen-year-olds sixteen-year-old 與 sixteen years oldsixteen-year-olds 16歲的青少年 n 在“基數(shù)詞-名詞（單數(shù)）-形容詞”結(jié)構(gòu)中，形容詞后加-s 表示一類人或事物 Sixteen-year-olds should be allowed to go out at night.sixteen-year-old 十六歲的 是由“基數(shù)詞-名詞（單數(shù)）-形容詞”構(gòu)成的復(fù)合形容詞，在句中通常作前置定語，修飾名詞。My pen pal is a sixteen-year-old boy.sixteen years old 十六歲， 用來描述人的年齡，常句中用作表語。My brother is sixteen years old.(2) allow ( to let sb do sth ) vt 意為：允許，準(zhǔn)許，常用于以下結(jié)構(gòu)中： allow sb to do sth 允許某人做某事 The teacher allowed him to go into the classroom. allow doing sth 允許做某事 We dont allow smoking in public places. be ( not ) allowed to do sth (不)被允許做某事 Passengers are not allowed to smoke.2、Sixteen-year-olds should be allowed to get their ears pierced.【解析1】should be allowed 是情態(tài)動詞的被動結(jié)構(gòu)，它是由“情態(tài)動詞+be+及物動詞的過去分詞”構(gòu)成。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)。把含情態(tài)動詞的主動句變成被動句，即把“情態(tài)動詞+動詞原形”改為“情態(tài)動詞+be+過去分詞”，此時，作主語的要用動詞承受者。We should clean the classroom every day. The classroom should be cleaned every day. 該結(jié)構(gòu)的句式轉(zhuǎn)換：1.否定句：在情態(tài)動詞后加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：直接將被動語態(tài)的陳述句的情態(tài)動詞提到的句首。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)動詞的被動語態(tài)的一般疑問句構(gòu)成。When must my homework be handed in? 我的作業(yè)必須何時交？4.對含有情態(tài)動詞的被動語態(tài)的一般疑問句的回答， 一般應(yīng)保留原句中的情態(tài)動詞，但must表示“必須”時，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。【解析2】get ones ears pierced：打耳洞（此處get 為使役動詞，相當(dāng)于make或者h(yuǎn)ave,意為“使，讓”）get/ have+ 賓語+ 過去分詞：“使某事被做”或“讓某人做某事”Youd better go and get your hair cut. Its too long.【形成性檢測】I. 單項選擇。1) _should not be allowed to go out at night.A.Twelve-years-old B.Twelve-year-oldsC.Twelve year oldD.Twelve years olds2) I _to have a part-time job.A.am not allowB.not allow C.dont allowD.am not allowed3) The teachers think students should _ to their homework with friends.A. are allowedB. are allowing C. be allowedD. be allowing4) He cant speak English, I cant, _. A. tooB.either C. alsoD. neither5) My father stopped smoking a year ago.A. liked smokingB. gave up smokingC. gave in smokingD. began smoking6） This 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 kept7) Did you have anyone _ the trees?Yes, I had the trees _. A. to water; water B. to water; watered C. water; to be watered D. water; wateredII. 英漢互譯1. 這在博物館里是不允許的。_.2. 我認(rèn)為16歲的孩子不應(yīng)被