Unit4Topic3SectionD课件九年级英语上册

Unit4AmazingScience

Topic3Chinaisthethirdnationthatsentapersonintospace.

SectionD

TeachingaimsBytheendoftheclass1.Somewords:certain,warn,might,housework2.Somephrases:forcertain,onone’sown,sofar,besurprisedat,nolonger3.Somesentences:(1)Nooneknowsforcertain,butmostpeoplethinkthatrobotswillbepartofourlives.(2)Inafewyears,perhapsrobotswillthinkontheirown,justaspeopleusetheirbrainsandactforthemselves.(3)Onescientistwarnsthatifrobotsstarttothinkforthemselves,theywillnolongerwanttobeourservants,butourmasters.3.Keypoints:

Reviewthegrammarattributiveclauses.4.Difficultpoints：

1.Onescientistwarnsthatifrobotsstarttothinkforthemselves，theywillnolongerwanttobeourservants，butourmasters.2.Nooneknowsforcertain，butmostpeoplethinkthatrobotswillbepartofourlives.Revisioninclass毫无疑问让某人一直做某事做生意在某人的帮助下例如订货和取消订单出故障出现，产生多亏像平常一样而不是，取代打开/关掉/开大声点/关小声点ReadthroughSectionsA-Candunderstandtheunderlinedparts.GrammarAttributiveClause(I)Heisournationalherowho/thattraveledaroundtheearthinShenzhouVfor21hoursin2003.Chinaisthethirdnationthatsentapersonintospace.Moreandmorepeoplehavepersonalcomputersthat/whichareusedtoplaygamesandwatchmovies.④先行词表人用who/that,主语，宾语，表语.先行词表物用which/that,主语，宾语，表语.先行词表人或物的，用whose,即whose+n.

先行词表时间用when,状语先行词表地点用where,状语先行词表原因用why,状语

▲.1.当关系代词在从句中作主语时不能省略，作宾语时则可以省略.2.当先行词被序数词、形容词最高级修饰或是不定代词或既有人又有物时，关系代词只能用that，而不能用which.e.g.Thisisthebest

film

thatIhaveseen.3.关系代词在定语从句中作主语时，从句的谓语动词的人称和数须和先行词一致。e.g.I

don’t

like

people

who

talk

much

but

do

little.1.Sorry,wedon’thavethecoat________youneed.A.what

B.who

C.whom

D.which2.—Whatareyoudoing?

—Wearetalkingaboutthebooksandwriters________welike.A．that B．which C．who D．whom3.Doyouknowtheman________issittingbehindNancy?A.what

B.which

C.who

D.whom4.Thebook________heboughtyesterdayisveryinteresting.A./

B.why

C.when

D.what5.Ihavefoundsomepicturesofthemostinterestingplaces________youcanvisitduringthewinterholidays.A.where B.which C.what

D.that6.Mycousinisaboy______________oftenbringslotsoftrouble.7.Sallyborrowedabook______________waswrittenbyMarkTwain.8.DeepSeaisoneofthemostmovingmovies__________I’veeverseen.9.Whoisthewoman______________isrunningbytheriver?ExercisesinclassDACADwho/thatwhich/thatthatthatFunctionsAllofyoumustbeveryproud.ItprovesthatChinahasmadegreatprogressinitsspaceindustry.Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.TheInternetismakingtheworldsmaller,likeavillage.Computershelpusatworkandathome,buttheymustbeusedproperly.1a.Discussthefollowingquestionsbeforereading.Thenreadandcheck.1.Doyoulikerobots?Whyorwhynot?2.Ifyouhadarobot,whatwouldyoulikeittodoforyou?1b.Findthewordsinthepassageaccordingtothefollowingmeanings.Thefirstletterisgiventohelpyou.

1.totellsomebodyaboutdangeroraboutsomethingbadthatmayhappen2.tomakesomethinghappenorappear3.apersonwhoispaidtodohouseworkforafamily4.sureandconfident,withoutanydoubts5.usedtosaythatsomethingmaybetrue,butyouarenotsure_______arnauseervantertainerhaps1.Doyouthinkrobotswillbepartofourlivesinthefuture?Why?2.Robotsareconsideredtobeourservants,aren’tthey?3.Doyouthinkrobotscanthinkoractforthemselves?4.Whydoesthetitlehaveaquestionmark?Yes.Actuallythey’vealreadybeenpartofourlives.No.Asahumanbeing,weshouldshowourrespecttoeverythingintheworldnotonlytootherhumanbutalsotothosewhoarealiveornot.No.Becausetheyhavenothouhts.Becausenooneknowstheanswerforcertainnow.1cRead1aagainanddiscussthequestionswithyourpartner.LanguagePoints1.forcertain=forsure“确切、肯定、无疑”，通常用于表达主语对某事物了解、知晓的肯定程度大。e.g.Iknowforcertaintha

tMikeisathome.becertain/sureof确信，深信

becertain/sureto必然；一定

benotcertain/surewhether...不能确定是否......

makecertain/sure(of,that)把......弄清楚，把......弄确凿，保证2.causev.导致，引起/n.原因causesb.sth.给某人带来....../引起......causesb.todosth.导致某人去做某事3.allthetime一直LanguagePointsintime意为“及时”，强调正好赶上事先约定的时间，没有迟到；ontime意为“准时”，指按计划做某事，强调不迟到，不早不晚。fromtimetotime意为“时常；有时”，相当于sometimes4.befriendlytosb.意为“对某人友好”，相当于bekindtosb.5.workfor“为......工作”workon从事于workout解决（问题）6.surprise（名词），意为“惊奇；惊讶”（动词），意为“使惊奇，使感到意外”e.g.Tooursurprise，hepassedtheexam.e.g.Itsurprisedmetoseemanypeoplethere.▲surprised（形容词），意为“感到惊奇的”，主语是人。surprising（形容词），意为“令人惊讶的”，主语是物。LanguagePointsLanguagePointsEg:Wearetryingtowarnchildrenofthedangerofsmoking.Myteacherwarnedmenottobelateagain.Thenoticewarnspeopleagainstswimmingintheriver.Iwarnedhimthatplayingwithfirewasdangerous.10.thinkforoneself独立思考11.nolonger=not……anylonger不再,表示时间上不再发生。nomore=not……anymore不再,表示数量或次数上不再发生。Eg:Youarenolongerachild.=Youaren'tachildanylonger.Pleasedon’tgothereanymore.12.treat（及物动词），意为“看待；当作”，treat...as把……看作……Eg:Youcan'ttreatyourenemyasfriends.你不能把敌人当作朋友。LanguagePointstreat（及物动词），意为“请客；招待”，treatsb.todosth.意为“请某人吃......”e.g.Shetreatedustosomedeliciouschicken.她请我们吃美味的鸡肉。1.确切、肯定、无疑2.一定能做某事3.在几年后4.独自5.警告某人不做某事6.警告某人当心某事7.对……吃惊8.把……看作9.一直10.不再11.到目前为止;迄今为止13.为......工作Exercisesinclass1.forcertain=forsure2.becertain/sureto3.inafewyears=inafewyears’time4.onone’sown=byoneself=alone5.warnsb.nottodosth.=warnsb.againstdoingsth.6.warnsb.about/ofsth.7.besurprisedatsth.8.treatsb.as=regardsb.as9.allthetime10.nolonger=notanylonger/nomore=not…anymore11.sofar12.causesb.todosth.13.workforExercisesinclass1.

HowdoesMr.Whitegetonwithhisstudents?

Verywell.Healways____them___hisownchildren.A.treats…to

B.treats…as

C.treats…for

D.treats…on2.ThemeetingwillbeheldinSeptember,butnobodyknowsthedate_______.A.forcertain

B.withpleasure

C.inall D.atlast3.Withtherapid________ofrobots,perhapsrobotswillthinkontheirownbrains.A.develop

B.development

C.increase

D.industry4.—Whatwillourfuturebelike?

—_______knows,Ithink.A.None B.Neither C.Noone D.Someone5.—Doyouknowthatwoman______iswearingareddress?—SheismyChineseteacher.A.who

B.which

C.what

D.this6.Theleaderwarnedus________thesamemistakeagain.A.make B.tomake C.nottomake D.notmake7.Mike_____hishometownsincehewasyoung.Asaresult,helikestothinkanddothings___.A.hasleft;byhimselfB.hasbeenawayfrom;onhisownC.hasleft;himselfD.hasleft;onhisown8.Hewas______mygreatprogress.“Ican’timagine!”heaidagainandagain.A.interestedin B.interestedtoC.surprisedat D.surprisedfo9.Theteacherwarnedus_____thedangerahead.A.toB.ofC.i