Unit6SectionAGrammarFocus4c课件人教版英语九年级全册

Unit6Whenwasitinvented?SectionA(GF—4c)What’sthemostpopulardrinkintheworld?(afterwater)

Teawasfirstdrunkabout5,000yearsago.boilingdrinkingwatertealeavesteasetRetellthestory考考你Whenwasteafirstdrunk?Whowasteainventedby?

ShenNong

ItwasinventedbyaChineserulercalledShenNong．RetellthestoryHowwasitinvented?

boilingwateroveranopenfireproduceda

nicesmell

tastedthebrownwater

—tea

Itwasinvented

byaccident.

fellinto…and

remained…

Tom

breaks

thewindow.

（主动语态）①

②

③Thewindow

isbroken

byTom.（被动语态）③

②

①英语的谓语动词有两种语态主动语态被动语态（前者表示句子的主语为动作的发出者，后者表示句子的主语为动作的承受者。）

从以上对比可以看出，主动句中的主语Tom在被动句中变成了短语byTom，主动句中的宾语thewindow变成了被动句中的主语。口诀：主变宾，宾变主，by短语后面跟，谓语动词变被动，

be后过分来使用。构成助动词be+及物动词的过去分词

be

+

vt.p.p.ManypeopleEnglishspeakEnglish.isspokenbymanypeople.当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者时，或者只需强调动作的承受者时，要用被动语态。何时使用被动语态？被动语态：主语是动作的承受者.一般现在时：

am／is／are+

vt.p.p.

构成：be

+vt.p.p.一般过去时：

was／were

+vt.p.p.情态动词：must

(can/could/may)+be

+vt.p.p.

构成：be

+vt.p.p.

shall/willbebegoingtobe一般将来时：+vt.p.p.现在进行时：

be(am/is/are)+being

+vt.p.p.mustplantThetreeThegroundbecoveredwithmustbe

planted

ontheground.willbe

covered

with

inafewyears’time.

trees

digTheearthThefoodeatupisbeingdug

now.hasbeen

eatenup

already.Oralpractice-主动句改被动句

Oralpractice--1.Changeeachsentenceintopassivevoice:Acar

knockedhimdownyesterday.Twodoctorsandtennursesmakeupthemedicalteam．WhenIgotthere,theywerecuttingupafallentree．Hewasknockeddownbyacaryesterday．Themedicalteamismadeupofbytwo…．Afallentreewasbeingcutup,whenIgotthere.4)We’llputontheplaynextSunday．5)Workersarebuildinganewteachingbuildinginourschool．

6)Theyhadcompletedtherailwaybytheendoflastyear．TheplaywillbeputonnextSunday．Anewteachingbuildingisbeingbuiltbyworkersinourschool．Therailwayhadbeencompletedbytheendoflastyear．2.Somebodystolemycamerafrommyhotelroom.Mycamerawasstolen(bysomebody)frommyhotelroom.3.Wheredidyoutakethesephotos?Wherewerethephotostaken(byyou)?4aRewritethesentencesusingthepassivevoice.4.Ourparentsadvisedusnottogooutalone.5.Differentwriterstranslatedthebookintodifferentlanguages.Wewereadvisednottogooutalone(byourparents).Thebookwastranslatedintodifferentlanguages(bydifferentwriters).1.You____________tothepartylastnight, weren’tyou?Whydidn’tyougo?2.Theearthquakehappenedallofasudden, butluckilythevillagers_____________to asafeplace.wereinvitedeat,like,invite,tell,lock,ring,break,bringwerebrought4bCompletethesentenceswithcorrectformsoftheverbsinthebox.句子主语you与invite之间存在被动关系。villagers与bring之间存在被动关系

n.地震adj.突然（的）

bebroughttosp.luck-lucky-luckily3.Thedoor___________whenwearrived,sowe______thebell.4.Thestudents___________nottoeator drinkinclass,butRuby______therulewhenshestartedeatingabiscuitinscience class.5.Thecookies__________bythehungrykidsinlessthan20minutes,andtheyreally_____ them.waslockedrangbrokeweretoldwereeatenlikedthedoor与lock之间为被动关系；而we与ring之间则为主动关系；其他各题相同。

n.饼干n.曲奇饼v.锁上，锁住；n.锁；Thetelephone______________(invent)byAlexanderGrahamBell.He__________(born)in1847.Mr.Bell________(work)ontheinventionofthetelephonewithThomasWatson.wasbornwasinventedworkedDecidewhetheractiveorpassiveformsshouldbeusedinthesesentence.Writethecorrectformsintheblanks.4cthetelephone与invent之间存在被动关系；Mr.Bell与work之间是主动关系。In1875,Mr.Bell_________(learn)howtosendmusicalnotesthroughaninstrumentsimilartoatelephone.Finally,thetelephone_____________(invent)in1876.Thefirstsentencethat_________(say)onthetelephonebyMr.Bellwas“Mr.Watson,comehere;Iwanttoseeyou.”Todaythetelephone________(use)aroundtheworld.learnedwasinventedwassaidisusedMr.Bell与learn之间为主动关系。adj.音乐的n.器械；工具ExerciseⅠ.单项选择

1.---TodayChineseisbecomingmoreandmorepopular.---It_______inmanyschoolsaroundtheworld.A.teachesB.isteachingC.hastaughtD.istaughtD2.We_______toclosethewindowsbeforeweleftthelab.A.tellB.toldC.aretoldD.weretold3.---

DidyouhearthatwaterinTaiLakesmeltterrible?---

Yes.Infact,it_______.That'sallbecauseofthepeopleandthefactoriesaround.A.pollutedB.waspollutedC.haspollutedD.willpolluteDB

用所给动词的适当形式填空。

1.Thepizzawas______(make)byme.Wouldyouliketohavesome?2.TheGrea