Unit13SectionA(grammar-4c)課件人教版九年級英語全冊

Unit13We’retryingtosavetheearth.SectionA(grammar-4c)ToreviewtheuseofPresentprogressive,usedto,Passivevoice,PresentperfectandModalverbs.Tomasterthembydoingsomeexercises.

不同種類的污染2.河底3.把垃圾扔到河里4.在……中起作用5.在中國南部6.對……有害7.在……頂部8.海洋生態(tài)系統(tǒng)differentkindsofpollutionthebottomoftheriverthrowrubbishintotheriverplayapartinI.Checkifyourememberthesephrases.insouthernChinabeharmfulto

atthetopof…theocean’secosystemII.Translation.1.這不僅殘酷還對環(huán)境有害。Thisisnotonlycruel,butalsoharmfultotheenvironment.2.鯊魚處于海洋食物鏈的頂部。3.許多人相信魚翅對健康有好處。Sharksareatthetopofthefoodchainintheocean’secosystem.Alotofpeoplebelievethatsharkfinsaregoodforhealth.Wearetrytosavetheearth.PresentprogressiveTheriverusedtobesoclean.usedtoTheairisbadlypolluted.PassivevoiceNoscientificstudieshaveshownthatsharksfinsaregoodforhealth.PresentperferctWeshouldsavethesharks.ModelverbsGrammarFocus現(xiàn)在進行時:Presentprogressive結(jié)構(gòu):be(am/is/are)+v.-ing形式標(biāo)志詞：Look,Listen,now,rightnow…e.g.

Listen!Theboyissinging.It’salwaysraininghere.(抱怨情緒)定義：表示說話時(瞬間)正在進行的動作,也表示目前或現(xiàn)階段正在進行的動作，或說話者的強烈情感。v.-ing形式(現(xiàn)在分詞)的構(gòu)成：a.一般情況下在動詞詞尾加-ing。b.以不發(fā)音的e結(jié)尾的動詞，去掉e加-ing。c.以一個輔音字母結(jié)尾的重讀閉音節(jié)，雙寫最后一個字母，再加-ing。usedtodosth.

過去常常做某事(而現(xiàn)在不做了)1)否定句式：didn’tusetodosth.2)一般疑問句式：Did+主語+usetodosth.?3)附加疑問句式：…,didn’t+主語?e.g.Heusedtoeatsharkfinsoup.Hedidn’tusetoeatsharkfinsoup.Heusedtoeatsharkfinsoup,didn’the?usedtodo&beusedtodoingLet’sreview.被動語態(tài)表意功能講話者不知道動作的執(zhí)行者，不必或不便說出動作的執(zhí)行者（這時可省掉by引導(dǎo)的短語）借助被動的動作突出動作的承受者為了更好的安排句子，用于修辭當(dāng)動作的執(zhí)行者是無生命的事物時，需用被動語態(tài)用法有些動詞習(xí)慣被動語態(tài)，如born,report,say等Let’sreview.被動語態(tài)結(jié)構(gòu)一般時進行時完成時時態(tài)現(xiàn)在am/is/are+過去分詞過去was/were+過去分詞將來will/shallbe+過去分詞過去將來would/shouldbe+過去分詞現(xiàn)在am/is/arebeing+過去分詞過去was/werebeing+過去分詞現(xiàn)在have/hasbeen+過去分詞過去hadbeen+過去分詞將來will/shallhavebeen+過去分詞過去將來would/shouldhavebeen+過去分詞Let’sreview.被動語態(tài)結(jié)構(gòu)不同結(jié)構(gòu)的被動語態(tài)肯定句式被動語態(tài)的基本結(jié)構(gòu)是：主語+be動詞+過去分詞+其他。否定句式被動語態(tài)的基本結(jié)構(gòu)是：主語+be動詞+not+過去分詞+其他。一般疑問句式被動語態(tài)的基本結(jié)構(gòu)是：Be動詞+主語+過去分詞+其他。特殊疑問句被動語態(tài)的基本結(jié)構(gòu)是：特殊疑問詞+be動詞+主語+過去分詞+其他。get+過去分詞這個要強調(diào)動作的發(fā)生，基本結(jié)構(gòu)是：主語+get+過去分詞+其他。有情態(tài)動詞的被動語態(tài)基本結(jié)構(gòu)是：主語+情態(tài)動詞+be+過去分詞+其他。Joe:_____youever_____(take)partinan

environmentalproject?Ken:Yes,Ihave.I_____(help)withaClean-Up

Daylastyear.Itwas_________(consider)

thebiggestclean-upprojectthiscityever

________(have).

Fillintheblankswiththecorrectformsoftheverbsinbrackets.4aHavetakenhelpedconsideredhadhadtookthinkcametryingwaitFillintheblankswiththeappropriatemodalverbsfromthebox.People______________thinkthatbigthings_____________bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you________________saveelectricitybyturningoffthelightswhenyouleavearoom.You________________alsousereusablebagsinsteadofplasticbags.may/mightmust/havetocan,would,could,haveto,should,must,may/mightcan/could/shouldcan/could/shouldhavetocan/could/shouldcan/couldcan,would,could,haveto,should,must,may/mightcan/couldcan/could/wouldMakealistofthingsthatpeoplecandotohelptheenvironmentanddiscussyourlistwithyourpartner.usepublictransportation(n.交通運輸)turnoffthelightswhenyouleavearoomtakeyourownshoppingbagswhenyougoshoppingdon’tusedisposable(adj.

一次性的)itemslikedisposablecutlery(n.餐具),cameras,etc.reducetheuseofairconditionersinsummergrowmoreplants…

用方框中詞的適當(dāng)形式完成下面的句子。(1)Ithinkit’s____tomakesuchayoungboyworkallday.(2)Thepoorfishermancan’t_____hischildren’seducation.(3)Ithinkthegovernmentmustdevelop_____toprotectenvironment.(4)Eatingtoomuchjunkfoodis_______yourhealth.(5)Hecanusedifferent_______toworkouttheproblem.method,cruel,harmful,afford,lawcruelaffordlawharmfulmethodII.單項選擇。1.—Areyougoingto_____anyoftheevents?—Yes.Maybelongjumpandhighjump.

A.takepartin B.join C.attend D.joinin2.Ican’tafford____himanexpensivebirthdaypresent. A.tobuy B.buying C.forbuying D.buy3.—Rememberto____thelightswhenyouleavetheroom.—OK.Iwill. A.turnon B.turndown C.turnup D.turnoff4.Thegirlalwayshassomemoneyto___snacks. A.spend B.payfor C.take D.cost5.—Look!_____boysareplayingonthe

playground.—Yes._____themisabout200. A.Thenumberof;Anumberof B.Thenumberof;Thenumberof C.Anumberof;thenumberof D.Anumberof;Anumberof用所給詞的適當(dāng)形式填空。1.Theoldmanused_____(be)ateacher.2.Weshould_____(clean)theroomeveryday.3.Look!Tom_________(sleep)inhisroom.4.Lotsoftrees__________(plant)onthehill

everyyear.5.He_________(live)herefor20years.tobecleanissleepingareplantedhaslivedIII.根據(jù)漢語提示完成句子。1.我們必須采取行動來阻止他們。

Wemust___________tostopthem.2.我從沒聽說過這個人。