被動語態(tài) 課件

被動語態(tài)

被動語態(tài)的基本構(gòu)成：

be+動詞的過去分詞（be+done)

1.一般現(xiàn)在時

am/is/are+done

Wecleantheclassroomeveryday.Theclassroomiscleanedbyuseveryday.Heputonacoat.Acoatwasputonbyhim.

2.一般過去時

was/were+doneHemadethekite.Thekitewasmadebyhim.3.一般將來時

shall/will/begoingto+bedone

Theywillplanttreestomorrow.Treeswillbeplantedbythemtomorrow.Heisgoingtowritealettertohismother.Aletterisgoingtobewrittentohismotherbyhim.4.現(xiàn)在完成時

has/have+beendoneJimhasfinishedthework.TheworkhasbeenfinishedbyJim.

5.含有情態(tài)動詞的被動語態(tài)can/may/must/should+bedoneIcanfindhim.Hecanbefoundbyme.被動語態(tài)的用法1.不知道動作的執(zhí)行者是誰。這塊手表是中國制造的。ThiswatchismadeinChina.2.沒有必要指出動作的執(zhí)行者每年都應(yīng)該種更多的樹。Manytreesshouldbeplantedeveryyear.3.需要強調(diào)或突出動作的承受者。世界上越來越多的人說漢語。Chineseisspokenbymoreandmorepeopleintheworld.4.句子的主語是動作的承受者。許多房屋被沖走了。Manyhouseswerewashedawaybytheflood.主動語態(tài)變被動語態(tài)的方法

（主語）（賓語）主動語態(tài)：動作的執(zhí)行者+謂語動詞的主動形式+動作的承受者被動語態(tài)：動作的承受者+謂語動詞的被動形式+動作的執(zhí)行者（主語）（賓語）說明：（1）要將主動句里的賓語變?yōu)楸粍泳渲械闹髡Z，若主動句中的賓語為人稱代詞，要將賓格變成主格。（2）把主動句中的主語變?yōu)楸粍泳渲械馁e語，主格變賓格，并由by引導(dǎo)。（3)謂語動詞變成相應(yīng)的被動形式。補充部分1.主動結(jié)構(gòu)表被動意義open，lock，write，read，sell，wash，cut，burn，drive等詞作不及物動詞時，它們的主語為物，可以用主動語態(tài)表被動意義。Thiskindofshirtsellswell.2.

look,sound,taste,smell等系動詞用主動表被動意義。例：Itsmellswonderful.Mooncakestastedelicious.3.在beworthdoing中，doing表被動意義。例：Thisbookisworthreading.4.want/need/require+doing=want/need/require+tobedone

例：Mybikeneedsrepairing.=Mybikeneedstoberepaired.

我的自行車需要修理。課堂練習（一）改寫句子1.Weplanttreesinspringeveryyear._________________byusinspringeveryyear.2.Shepostedtheletteryesterday.____________________byheryesterday.3.MrTurnergavemeabirthdaypresent._______________abirthdaypresentbyMr.Turner.5.Youmayhandinyourhomeworktomorrow.______________________________byyoutomorrow.6.Sheisgoingtowritealetter.__________________________byher.TreesareplantedTheletterwaspostedIwasgivenYourhomeworkmaybehandedinAletterisgoingtobewritten

1.Ifcitynoises____fromincreasing,people____shouttobeheardevenatdinner.

A．a(chǎn)renotkept;willhaveto

B．a(chǎn)renotkept;have

C．donotkeep;willhaveto

D．donotkeep;haveto

2.Thefifthgenerationcomputers,____andperfectednow.

A.developedB.havedeveloped

C.arebeingdevelopedD.willhavebeendeveloped

3.---____thesportsmeetmightbeputoff.

---Yes,italldependsontheweather.

A．I'vebeentold

B．I'vetold

C．I'mtold

D．Itold

ACA4.Ineedonemorestampbeforemycollection___.

A.hascompleted

B.completes

C.hasbeencompleted

D.iscompleted

5.Rainforests___andburnedatsuchaspeedthattheywilldisappearfromtheearthinthenearfuture.

A.cut

B.arecut

C.arebeingcut

D.hadbeencut

6.Thenewbridge___bytheendoflastmonth.

A.hasbeendesigned

B.hadbeendesigned

C.wasdesigned

D.wouldbedesigned

7.