UnitFourTopicTwoSectionC課件仁愛英語九年級上冊

Unit4AmazingScience

Topic2I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.

SectionC

Teachingaims1.Knowledgeaims：Wordsandphrases:Wordsandphrases:storm,weigh,journey,excitement,generally,limit,benamedaftersb.,as…as…,atadistanceof…,Ittakes…todosth.Sentences:Itsdiameteris53%aswideasthatoftheearth.

YoucantellwhichplanetisMarsbecauseitisbright,redinthenightsky.

ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.

IttakesaspaceshipabouteightmonthstoreachMarsfromtheearth

IthasbeentwodayssincewelandedonMars.2.Skillaims:

Letstudentsusethefuture

passivevoiceinlistening,speakingandwriting.3.Keypoints:

Grammar:theFuturePassiveVoice4.Difficultpoints：

Itsdiameteris53%aswideasthatoftheearth.

IthasbeentwodayssincewelandedonMars.1.到火星的太空飛行2.參加，加入3.去太空旅行，遨游太空4.新的事物6.長大7.掌握一些基本的電腦技術8.在舞臺上9.比起……更喜歡……10.對……感到激動12........的形狀14.知道，了解Revisioninclass1.語法：

被動語態(tài)1)一般將來時的被動語態(tài)，其結構為：willbe+動詞的過去分詞.也可以用作“begoingtobe+及物動詞的過去分詞”，表示“計劃、打算、安排的事將被執(zhí)行”。e.g.Theoperationisgoingtobehadintheafternoon.Hewillbemetatairportbyhisfriend.WillanEnglishcontestbeheldnextSaturdayafternoon?Youwillnotbeallowedtogooutifyoudon’tfinishyourhomework.2)一般現(xiàn)在時態(tài)被動語態(tài)is/am/are+doneeg.ManyspaceshipsaresentintospacebyChina.3)一般過去時態(tài)被動語態(tài)was/were+doneeg.SpaceshipVwassentintospacein2003.4).有情態(tài)動詞的被動語態(tài)，結構為“情態(tài)動詞+be+及物動詞的過去分詞”。e.g.Treescanbeplantedinspring.Revisioninclass1a.Readandunderstand.

LookatthepicturesandpredictwhichstatementsaretrueaboutMars.Thenreadthepassagequicklyandchecktheanswers._____1.Marslookslikearedball._____2.ThetemperatureonMarsisveryhigh._____3.Marsismuchlargerthantheearth._____4.Marsistoofarawayforustoreach.TFFF1bRead1aagainandwritedowntheinformationaboutMars.DiameterColorShapeClimateGravityDistancefromthesun53%aswideasthatoftheearth

redandorangeaball

duringspringandsummer:strongstormstemperature:between-138℃and28℃abouttwo-fifthsasstrongasitisonearthabout228millionkilometersNo.Becauseduringspringandsummer,thesurfaceofMarsiscoveredbystrongstorms.AndThetemperatureonMarsisbetween-138℃and28℃.Theairhasonly0.13%oxygen.

1c.Discussthecrazyquestionswithyourpartnerandstateyourreasons.

Yes.ThetemperatureonMarsisbetween-138℃and28℃.Theairhasonly0.13%oxygen.

No.Becausetheairhasonly0.13%oxygen.

Yes.BecauseThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.

LanguagePoints1.name（動詞），意為“命名，給......取名”，后接雙賓語，構成：namesb./sth.+名稱。e.g.TheynamedtheirsonBruce.name...after...意為“給......取名”。e.g.WenamedChina’sfirstlunarprobeafterChang’e.benamedafter...

“（被）以......命名”，是被動語態(tài)的形式。e.g.China’sfirstlunarprobewasnamedafterChang’e.2.as...as...意為“和......一樣”，中間接形容詞或副詞的原級。否定式為notas...as...，意為“不如......那樣......”3.goaround意為“環(huán)繞，繞著”4.distance（可數(shù)名詞），意為“距離”distant（形容詞），意為“遙遠的”

LanguagePoints

atadistanceof意為“相隔”；atadistance意為“在遠處”5.cover...with...意為“把......用......蓋住”e.g.Anncoveredherfacewithherhands.becoveredwith=becoveredby“被......覆蓋著”e.g.Thegroundiscoveredwith/bythickleaves.②cover（可數(shù)名詞），“封皮，封面”6.weigh（及物動詞），意為“重，有多重”e.g.Thelargestoneweighsover10tons.

weight（不可數(shù)名詞），意為“重量；分量”e.g.What’syourweight？=Howmuchdoyouweight？7.ttakes+主語+sometimetodosth.做某事花了（主語）多長時間。

LanguagePoints8.worth（形容詞），意為“值得，有......價值的”，常用短語有：①beworthdoingsth.意為“值得做某事”e.g.Theplaceisworthvisiting.②beworth+錢意為“值多少錢”e.g.Thepictureisworth30￥.③beworth+名詞意為“值得......”e.g.Idon’tthinkit’sworthourwork.9.倍數(shù)的表達法A+be+倍數(shù)+as+adj./adv.原級+as+BA+be+倍數(shù)+adj./adv.比較級+than+Be.g.Itsdiameteris53%aswideasthatoftheearth.=Itsdiameteris53%widerthanthatoftheearth.

LanguagePoints10.worth（形容詞），意為“值得，有......價值的”，常用短語有：①beworthdoingsth.意為“值得做某事”e.g.Theplaceisworthvisiting.②beworth+錢意為“值多少錢”e.g.Thepictureisworth30￥.③beworth+名詞意為“值得......”e.g.Idon’tthinkit’sworthourwork.11.searchfor:表示沒有“被搜索的對象”只有“尋找的目標”。e.g.Allnighttheysearchedforthelostboy.search…for…表示搜查某一對象的目的是要找到什么,強調有具體的目標。e.g.ShesearchedmanyshopsforJim’sgift.

LanguagePointssearch意為“在……搜查”或“搜身”,是個及物動詞，后面直接跟“被搜查的對象”。如：Mr.Smithsearchedeveryroominthehouse.12.Itis(hasbeen)+一段時間+since。e.g.Itisalongtimesincetheyleft.=Ithasbeenalongtimesincetheyleft.

HiKangkang,Ithasbeentwodays_________(since,from)welandedonMars.It_________(cost,took)usmorethantwoyearsto_________(reach,get)here.Generally,thejourneywentwell,butthelivingconditionswere_______(quiet,quite)badduringthejourney.Wehadtoproducemostofthefoodinthespaceship.______________(What’smore,What’sworse),ourwatersupplieswereverylow.Wehadtolimittheuseofwaterduring_________(those,these)days.Sowehadashowereverysixweeks.Wewillspendanothersevenhundredandsixty-threedaysonMars.__________(How,What)alongtime!Ioftenmissthefamily,buttheexcitementofbeingonMarsisworthit!Wishmeluck!Yours,UncleStephensincetookgetquiteWhat’sworsethoseWhatRead2andanswerthequestions.(1)Whoisthise-mailfromandto?ItisfromUncleStephentoKangkang.

(2)Howlongdidittakethemtogetthere?Morethantwoyears.(3)Dideverythinggowellduringthejourney?No,itdidn’t.

3a.Writebackane-mailtoUncleStephenforKangkangandaskhimformoreinformationaboutMars.Thelistmayhelpyou.clothing

foodanddrinksweather

transportation…3bWorkinpairs.Checkyourpartner’se-mailanduseyourknowledgeofMarstoanswerthequestionsforUncleStephen.DearUncle,I’mverygladtoreceiveyoure-mail,andIknowthatthelivingconditionswerequitebadduringyourjourney.IaminterestedintheinformationaboutMars.Canyoutellmemoreaboutit?HowabouttheweatheronMars?Isitverycold?Whatkindoftransportationdoyouusethere?Iamlookingforwardtoyoure-mail!Goodluck!

Yours,

KangkangRevisioninclass1.太……以致于不能……3.以……命名4.和……一樣……5.圍繞……轉6.相隔……遠的地方7.被覆蓋……9.離……近12.值得(做)某事13.自從...有多久1.too...to...2.looklike3.benamedafter4.as+adj./adv.+as...6.atadistanceof...7.becoveredby/with...8.Ittakessb.sometimetodosth.9.becloseto...10.searchfor11.what'sworse=evenworse12.beworth(doing)sth.13.Itis(hasbeen)+一段時間+sinceRevisioninclass1.Themoongoesaroundtheearth______adistanceofabout380,000kilometers.A.is

B.for

C.with

D.at2.It______alongtimesincewereachedBeijing.A.are

B.was

C.hasbeen

D.hadbeen3.—Don’tthrowaboutyournewspaper!—Sorry,I’mbusynow.Theywill_____later. A.collect B.becollect

C.becollected

D.collected4.It______methreehourstofinishthework.A.spends B.takes

C.costs

D.pays5.Manytreesandflowers_____inourschoollastyearandtheymadeourschoolabeautifulgarden.A.haveplanted

B.areplanted

C.wereplanted D.willbeplanted6.----IsMarsbiggerthanearth?----No.It’sabout______theearth.A.asbigas