Unit;4;Inventions;and;Inventors.docx

《Unit;4;Inventions;and;Inventors.docx》由会员分享，可在线阅读，更多相关《Unit;4;Inventions;and;Inventors.docx（9页珍藏版）》请在优知文库上搜索。

1、themeatshouldbekeptinafridge,ricecanbeboiledorsteamed.thismaterialmustbehandledcarefully.text:thefirstpaperwas(make)inchinain105adbyamancalledcailun.theoldestpiecesofpaperstillexistedweremadeinabout150ad.forover500yearstheartofmakingpaperwas(limit)tochina,in610,papermakingwas(introduce)intojapan,and

2、thenintocentralasiainabouttheyear750.papermadeitsfirstappearanceinegyptinabout800butitwasnot(produce)thereuntiltheyear900.kites(know)inchinaabout3,000yearsago.theywereusedinbattlestotransportsuppliestosoldierswhowereindanger.wheelbarrows(invent)inthehandynasty,theywereusedbybuilderstocarryheavysuppl

3、ies,inabattle,wheelbarrowswereusedtocarryinjuredordeadsoldiers.gunpowder(discover)bytheChinesewhouseditformakingfireworkshundredsofyearsago.itwasprobablyintroducedintoeuropefromthemiddleeast.5. thebeautifullightscrystalglass.6. soapanimalszoil.句型转换：1. caiIuninventedpaperin105ad.（变成被动句）2. peoplegrowr

4、iceinsouthchina.（变成被动句）3. chinawillholdthe29thOlympicgames.（变成被动句）4. peoplemustlocktheirbikes.（变成被动句）5. gunpowderwasdiscoveredbytheChinese.（变一般疑问句）6. veryfewpeoplewillbekilledincaraccidentinthefuture.（变否认句）7. tea-drinkingwasfirstrecordedinchinaabout2737be.（对画线局部提问）【本讲教化信息】一.教学内容：book15unit4（ii）复习被动语

5、态，学会运用被动语态描述事物的运用，构成和功能；学会用情态动词表达疑心，确定和可能。二.本周教学重点:whiteclothesandcoloredclothesshouldnot(wash)together.schooluniformsneedn*t(wear)atalltimes.(二)情态动词：当不是很确定时，用might或may.(might比may更不确定)whoknowswhatwillhappen,youmayevenhavemarriedbythen.itmightbeatoolforcuttingthings,idon,tknow.当确定某件事是唯一的可能时，用must.itm

6、ustbesomesortoftoy.当确信不行能发生时，用CannOt.itcannotbearadiobecauseitstoobigtobearadio,pletethesentenceswithmightbe/maybe,cannotbe,ormustbe.1. thisexamtoodifficultforthestudents,idontthinktheycanfinishit.2. itabookforchildren,therearemanycartoonsinit.3. ittrue,ithinkyoumadeamistake.4. mr.smithinIondon,pari

7、szortokyo.nooneknowsforsure.5. thatjohn.heisinnewyorknow.6. didyouhearthedoorbell?itnicholas.iamexpectinghim.（三）readthedescriptionsaboutsomefamousinventors,andguesswhotheyare.1. helivedinchinainsongdynasty,printingwasinventedbyhim.whowashe?2. hewasbritish.hewasborninedinburghzScotlandin1847.hediedin

8、1922.in1876,heinventedthefirsttelephone,whowashe?3. heisChinese,hewenttoauniversityinsouthwestchinatostudyfarmingtechnology,hewascalledthefatherofhybridricew4. thesetwobrotherswereamericans.whentheywereyoung,theystartedtowonderwhybirdscouldflyinthesky.thentheystartedtomakeflyingmachines.theyfirsttri

9、edtoflyaplanein1903.5. hewasanamericaninventor,hewasborntoapoorfamilyin1847.hismothertaughthimathome,heoftenobservedthingscarefullyandhelikedtoaskquestionsaboutthem,hestudiedveryhardandmadeover1,300inventionsduringhislifetime,oneofhisfamousinventionswasthelightbulb.（四）重点词汇：1. inmanybigcitiesinthewor

10、ld,theoveruseofcarsisthoughttobeoneofthemajorcausesofairpollution.over+名词/形容词，表示过多，过于theover-loadtruckcausedaseriousroadaccident.shealwaysworksovertime,soshehastoleaveherbabycaredforbyhermother.bethoughttobe被认为，被看作sheisthoughttobethetopstudentinourclass.janeisthoughttobebusypreparingfortheexam.2. ho

11、weverwearealsowarnednottoaskforprettycolors,becausethecarwillcomeingrayonly.warnnoonewarnedhimofthedanger.iwarnedhernottogetclosetothedogbutshewouldnzthearofit.3. otherexpertsaresurethatthefuturewillbehappy,besurethat.iamsurethatsmokingwillhurtyou.areyousurethatjohnwillcomethisafternoon?4. ifgasisin

12、shortsupply,thesupercarwillrunonwater.beinshort.thecheaperitis,thebetter,i,mshortofmoney.on靠hefindsitdifficulttoliveonhissalary.theylivemostlyonvegetablesfromtheirgarden.5. asarule,softfruitslikestrawberries,etc,aredifficulttofreeze.asarule一般来说，通常是asarule,shegoesoutearlyeveryeveninglookingforwork.as

13、arule,wegethomeat6.6. eout开花，出版，退色，计算出来thismagazinecomesoutmonthly.someflowershavebeguntocomeout.iwashedtheshirttwicebuttheinkstillhasntcomeout.7. observe视察iobservedaletteronthetable.didyouobserveanythingstrangeinthatbo/sbehavior?课堂练习i.单项选择。1. haveyoueverthiskindofmooncakes?a.eatb.eatsc.eatingd.eate

14、n2. theknivesareusedcuttingthings.a.inb.toc.ford.of3. theyareusedforthestyleofashoe.a.changeb.changesc.changingd.changed4. -mustistayathome,mum?-no,youa.needn,tb.mustn,tc.don,td.maynot5. sheaskedthemthingsabout.a.nottolitterb.don/tlitterc.notlitterd.nolitter6. imnotsurehewillcomebackhometomorroworno

15、t.a.whenb.whatc.whetherd.where7. look,thesebedinosaureggsbecausetheyarethebiggestofall.a.mustb.canc.shouldd.may8. -iwastoldtotakeumbrellawithme.-oh,no.lookatthesky.it,ssunnyandrain.a.mustb.can,tc.mayd.neednzt9. thelightintheofficeisoff.theteacherbetherenow.a.mayb.cantc.mustntd.must10. thiskindofsweaterismadecotton.a.byb.withc.ofd.fromii.完成句子：1 .警察阻挡孩子们在街上玩耍。thepolicemanstoppedthechildreninthestreet.2 .去年他去日本学医。lastyear,hewenttojapan.3 .她每天早起以便能读英语。sheget