第三課時(shí)SectionA(GrammarFocus～4c)besupposedtodosth.中的to是動(dòng)詞不定式符號(hào)，其后要跟動(dòng)詞原形；be隨主語(yǔ)的人稱、數(shù)和時(shí)態(tài)的變化而變化。1．besupposedtodosth.意為“應(yīng)該做某事”，它可以表示勸告、建議、義務(wù)、責(zé)任等，相當(dāng)于情態(tài)動(dòng)詞should。eg：Everyoneissupposedtowearaseatbeltinacar.每個(gè)人在坐車(chē)時(shí)都應(yīng)該系安全帶。2．其否定形式為：benotsupposedtodosth.，常用于口語(yǔ)中，意為“不被許可/不應(yīng)該做某事”。eg：Youarenotsupposedtosmokeonthebus.你不應(yīng)該在公交車(chē)上抽煙。3．其一般疑問(wèn)句形式為：Be＋主語(yǔ)＋supposedtodo＋其他？eg：WasLucysupposedtolockthedoorwhenshelefttheclassroom?當(dāng)露西離開(kāi)教室時(shí)，她應(yīng)該鎖門(mén)嗎？4．其特殊疑問(wèn)句形式為：特殊疑問(wèn)詞＋be＋主語(yǔ)＋supposedtodo＋其他？eg：Whatarewesupposedtodotosavewaterinourdailylife?在日常生活中，我們應(yīng)該做什么來(lái)節(jié)約用水？5．was/weresupposedtodosth.相當(dāng)于shouldhavedonesth.表示過(guò)去本應(yīng)該做某事但并沒(méi)有做。eg：Thetrainwassupposedtoarrivehalfanhourago.火車(chē)本該在半小時(shí)之前到達(dá)?！咀⒁狻勘硎靖鶕?jù)規(guī)定或傳統(tǒng)習(xí)慣，人們應(yīng)該做某事的時(shí)候，besupposedtodo和beexpectedtodo兩者可以互換。但是beexpectedtodo比besupposedtodo的主觀性更強(qiáng)。eg：Sheisexpectedtobeagooddoctor.她有望成為一名好醫(yī)生?！癐tis＋adj.＋todosth.”為固定句型，其中it是形式主語(yǔ)，真正的主語(yǔ)是動(dòng)詞不定式(短語(yǔ))。因?yàn)閯?dòng)詞不定式(短語(yǔ))作主語(yǔ)相對(duì)較長(zhǎng)，為了避免頭重腳輕，所以用it作形式主語(yǔ)?！就卣埂?．“Itis＋adj.＋forsb.todosth.”意為“對(duì)某人來(lái)說(shuō)做某事是……的”。此句型中的形容詞常用于表示事物的特征和特點(diǎn)，如easy,hard,difficult,interesting,important,impossible等，用來(lái)說(shuō)明后面的動(dòng)詞不定式。eg：It'shardformetoansweryourquestion.對(duì)我來(lái)說(shuō)回答你的問(wèn)題很難。2．“Itis＋adj.＋ofsb.todosth.”意為“做某事某人是……的”。此句型中的形容詞常用于表示人物的性格和品德，如good,kind,nice,clever,polite等，用來(lái)說(shuō)明of后的sb.。eg：It'sverykindofyoutohelpmewithmyEnglish.你幫助我學(xué)習(xí)英語(yǔ)真是太好了。一、用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空。1．Hewassupposed____________(come)tothemeeting,buthedidn't.2．Whatweretheysupposed___________(do)inthefaceofdanger?3．Wearenotexpected___________(arrive)latewhenwehaveameeting.4．It'sconvenient____________(take)abustogotoschool.5．Itisgoodforpeople_____________(walk)afterdinner.to

cometo

doto

arriveto

taketo

walk二、按要求完成下列句子。6．Parentsshouldtelltheirchildrenwhatgoodmannersare.(改為同義句)Parents___________________________telltheirchildrenwhatgoodmannersare.7．Maryissupposedtowearadress.(改為一般疑向句并作肯定回答)—______________________________________wearadress?—Yes，__________________．8．Heissupposedtobeanexpertinthisfield.(改為否定句)He__________________________tobeanexpertinthisfield.aresupposedtoIsMarysupposedtosheisisnotsupposed9．Tohandinourhomeworkontimeisnecessary.(改為同義句)_______________________________________________ourhomeworkontime.10．Studentsaresupposedtogreet

the

teacherswhenclassesbegin.(對(duì)畫(huà)線部分提問(wèn))_____________________students

____________________________whenclassesbegin?It'snecessarytohandinWhataresupposedtodo三、根據(jù)漢語(yǔ)意思完成下列句子。11．你應(yīng)該找份兼職工作多賺點(diǎn)錢(qián)。You___________________________findapart-timejobtomakemoremoney.12．期望你更努力地學(xué)習(xí)。You____________________________studyharder.13．對(duì)我來(lái)說(shuō)，學(xué)好化學(xué)很困難。________hard_______me_______________________chemistrywell.14．犯這樣的錯(cuò)誤你真是太粗心了。It'scareless_______you_________________suchmistakes.15．人們不應(yīng)該在公交車(chē)上大聲講話。People_____________________________________speakloudlyonthebus.aresupposedtoareexpectedtoIt'sfortolearn/studyoftomakearenotsupposedto一、根據(jù)句意及漢語(yǔ)提示寫(xiě)單詞。1．Inwinter,thereisusuallylotsofsnowinthe__________(北方的)areasofourcountry.2．Youmusttakeyour_____________(護(hù)照)ifyouwanttotravelabroad.3．Don'tforgetto____________(敲)atthedoorbeforeenteringthemeetingroom.4．Summerismyfavorite___________(季節(jié)).Icangoswimmingwithmyfriends.5．Theboystoppeddrawingonthe_____________(黑板)whentheteachercamein.6．Couldyougototheofficeandgetmesome___________(粉筆)now?Ineedtowriteonthenoticeboard.northernpassportknockseasonblackboardchalk二、根據(jù)漢語(yǔ)意思完成下列句子。7．邁克買(mǎi)了兩本書(shū)，但是一本也不值得讀。Mikeboughttwobooks，butneitherofthemis_______________________．8．你去年參觀的城市在那個(gè)國(guó)家的東海岸嗎？Isthecitythatyouvisitedlastyearonthe______________________ofthecountry?9．桌子上有一些臟東西，請(qǐng)把它們擦掉。Therearesomedirtythingsonthetable,please__________________________．10．學(xué)習(xí)一些餐桌禮儀是重要的。Itisi