七年級英語Electricity課件

Unit4ElectricityReadingelectricityn.電electriciann.

電工ThereisaproblemwiththeelectricityinTom’sflat.Anelectricianhascometodealwithit.

electrica.電的

electricstormelectricshock

electricala.電氣科學的electricalapparatus電器electricalengineer

WordsandexpressionsinReadingAWhatdoyouknowabout:changev/n.變化Wecan’tseeelectricity,butwecanchangeitintoenergy.GreatchangeshavetakenplaceinShenzhensince1980.changeablea.Theweatherischangeableontopofthemountain.n.找頭；〔找回的〕零錢Hereisyourchange.energyn.

Youngpeopleusuallyhavemoreenergythantheold.

年輕人通常比老年人有活力。

energetica.1.Heisanenergeticboy;heenjoyssports.

2."Themoretheyoungstudentsworked,themoreenergetictheybecame."

這些年青學生們越干越有勁。abaccccontainpolitelyinawayflowstrick:v/n

戲弄,欺騙It’swrongtotrickothers.=It’swrongtofoolothers=It’swrongtoplaytricks(atrick)onothers.=It’swrongtoplayjokes(ajoke)onothers2.

atlast=intheend=finallyIfinishedmyworkatlast.Ifinishedmyworkintheend.Ifinishedmyworkfinally.3.flowthrough

Elctricityflowsthroughawire.It’slikewater,inaway.

WordsandexpressionsinReadingB:

4.looklike=belike

1.Helookslikehisfather.=Heislikehisfather.2.----What’shelike?=Whatdoeshelooklike?----Heisshortandfat.5.inaway(partly)在某種程度上,稍稍Inaway,Iagreewithhim.Someofhisideasarerightbytheway

Bytheway,canyoutellmewhenwewillleave?intheway

Thetableisintheway.Pleasemoveit.ontheway

Onthewaytoschool,IsawKen.inthisway

Ihavecollectedmanystampsinthisway.

6.

explainv.explanationn.Canyouexplainittome?=Canyougiveanexplanationaboutittome?7.formv.組成＆n.形式1.Mikeformedafootballteaminhisclasswithhisclassmateslastterm.2.Wecanchangeitintodifferentformsofenergy.3.Shehasatallgracefulform.她有著高大優(yōu)雅的外形。

8beconnectedto1.Thewiresinourflatareconnectedtocablesburiedunderthestreet.2.HongKongandShenzhenareconnectedbyLuohuBridge.connectv.1.〔常與to,with連用〕連接；結合；連結Willyouconnectthiswiretothetelevision?你把這根電線和電視機連上好嗎？2.接通ConnectmewithBeijingUniversity.給我接北京大學。9buryv.buriedburied

Whenpeopledied,theyareusuallyburied.

10.

cablen.電纜wire:n.電線Computersareconnectedwitheachotherbymeansofcables.11.containv.包含；容納；裝有Beercontainsalcohol.啤酒含有酒精。Theenvelopcontainssomephotosofherfamily.Phrases:1.轉化,變成2.戲弄某人3.最后4.看上去很傻5.流經(jīng)6.某種意義上7.看電纜聯(lián)結在一起8.電燈泡9.撓頭10.不同形式的能量11.發(fā)電站

changeintotricksbatlastlookfoolishflowthroughinawaybeconnectedtocablesalightbulbscratchone’sheaddifferentformsofenergyapowerstationme=BennyIt=electricityit=electricityThey=cablesThey=batterieswirecablestreetpowerstationYesIwasabletotrickDaisyatlastNOWecan’tseeelectricity,butwecan

changeitintodifferentformsofenergyNOWhoislookingfoolishnow,BennyListeningUnderstandingthemainpointsofadialogueThereisaproblemwiththeelectricityinBenny’sflat.Anelectriciancametodealwiththisproblem.ListentotheconversationbetweentheelectricianandBenny’smother.Findoutwhichthingswereonoroffwhentheelectricitystopped,andcircleONorOFFnexttotheobjects.Beforeyoulisten,makesureyouknowthefollowingwords:Vacuumv.用真空吸塵器清掃properlyadv.正確地,恰當?shù)豂ronv.熨,燙平plugn.插頭

lightsairconditionerfridge

kettlewashingmachinetelevisionvacuumcleanerricecookeriron★Language情態(tài)動詞情態(tài)動詞不能單獨作謂語動詞，后接其它動詞原形做謂語，沒有人稱和數(shù)的變化。表示能夠或不能做某事用can或can’tAbirdcanfly.Fishcan’tlivewithoutwater.2.告訴人們必須或禁止做某事用must或mustn’t

Youmusthandinyourhomeworkatonce.Youmustn’ttalkloudlyinpublic.3.表示請求或允許做某事may或can

MayIcomein?CanIopenthedoor?4.談論該做或不該做某事用should,oughtto或shouldn’t,oughtnotto

Sheshoulddoherhomeworkfirst.Theyoughttofinishtheworkontime.theyoughtnottobelateforschool.★★★Notes:1、can和beableto的區(qū)別:beableto有人稱數(shù)和時態(tài)的變化。Icancometomorrow.Iwillbeabletocometomorrow.2、在答復must的疑問句時，否認答復常用needn’t或don’thaveto表示不必，而不用mustn’t。Mustwestayhere?No,youneedn’t.(No,youdon’thaveto.)3、mustbe表示肯定的猜測，意為“一定……”can’tbe表示否認的猜測，意為“不可能……”Shemustbeanurse.Isawherinthelibraryjustnow.Shecan’tbehere.4、musthavedone也表示肯定的猜測，意為“一定做過……”Theymusthavecleanedtheroom.It’ssoclean.他們一定清掃過房間了，它這么干凈。Ⅰ.用適當?shù)那閼B(tài)動詞填空：。1.__________youswim?2.We___________operatethemachinelastweek,butwecanoperateitnow.3.Don’tworry.You_____returnmethisbooktomorrow.4.Hesaidifhe_________askmeanotherquestion.5.Mygrandmaisill.You_____talksoloudlyhere.6.Ican’tplaywithyou.I__________finishmyhomeworkfirst.7.I__________getupearlytomorrow.8.______________youpleaseopenthewindow?

Cancouldn’tmaycouldcan’tmustmustCould9.Nobody___________livewithoutair.10._________hespeakChinese?Yes,alittle.11.Thebook_________bereturnedbeforeSaturday.12.__________Icomein?Yes,please.13.You________giveupsmokingatonce.It’sbadforyoureyes.14.Excuseme._________Iaskyouaquestion?15.__________youtellmewherethestationis?16.______Ifinishtheworknow?No,you_________.You_____doitthisevening.17.MayIuseyoure-dictionary?Sorry,you_________.Iamusingitnow.18.Lookattheground.It’sverywet.It_______haverainedlastnight.canCanmustCan/MaymustMay/CanCan/CouldMustneedn’tcan/maycan’tmust同義句改寫:1.Youmustcleanyourroomyourself.You__________________cleanyourroomyourself.2.Shecandancebeautifully.She________________________dancebeautifully.3.Washyourfaceatonce.You_______washyourface________.4.Tomcouldn’tfindhisbag.He________not________________tofindhisbag.5.Everyoneoughttobehereontime.Everyone_____________________hereontime.

haveto

isableto

must

were

abletoshouldbe

immediately

Fillintheblankswiththewordsgivenintheirproperforms:1.TheweatherinLondonis____________.(change)2.Pleasewaitformeatthemain_______tothemuseum.(enter)3.Airis___________.(visible)4.Thescientistsfoundsomemummies_______underthepyramids.(bury)5.Canyou________ittomeagain?Ican’tunderstandit.(explanation)6.Idon’tfeellike_________footballinthestreet.(play)7.Ipreferthiskindofcloth.Itfeels________.(smoothly)8.A:Hemustbeintheoffice.B:He_______bethere.Isawhimtalkingtohisfriendintheclassroomjustnow.(can,may,must)

changeableentranceinvisibleburiedexplainplayingsmoothcan’t9.Therainstoppedusfrom_____