Unit7SectionAGrammarFocus-4c課件人教版英語九年級全冊

Unit7Teenagersshouldbeallowedtochoosetheirownclothes.SectionA(GrammarFocus~4b)英語中有兩種語態(tài)：主動語態(tài)和被動語態(tài)。主動語態(tài)：表示主語和謂語之間是______關(guān)系

被動語態(tài)：表示主語和謂語之間是________關(guān)系

主動被動We

cleantheclassroomeveryday.Theclassroomiscleanedbyuseveryday.

英語的語態(tài)是通過動詞形式的變化表現(xiàn)出來的。1.Myshirtsaremade

ofcotton.2.Teaisgrown

bypeopleinHangzhou.3.Thezipperswereinventedin1893.4.Thefridgewassold

atalowprice.一般現(xiàn)在時的被動語態(tài)一般過去時的被動語態(tài)被動語態(tài)的結(jié)構(gòu)為：be+動詞的過去分詞be有時態(tài)和人稱的變化Idon'tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren'tseriousenough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?

No,Idon'tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemaybeallowedtotakesomephotosifwedon'tuseaflash?Ifyoudon'tuseaflash,thenitmaybeOK.

GrammarFocus含有情態(tài)動詞的被動語態(tài)情態(tài)動詞+be+動詞過去分詞Weare

allowedtochooseourownclothes.shouldWebeallowedtochooseourownclothes.●含有情態(tài)動詞的主動句變?yōu)楸粍泳鋾r，主要遵循如下三點：(1）主動句中的賓語變?yōu)楸粍泳渲械闹髡Z；(2）主動句中的謂語變?yōu)椤扒閼B(tài)動詞＋be＋及物動詞的過去分詞”;(3）主動句中的主語變?yōu)榻樵~by的賓語，放在謂語之后

,

by的賓語?？墒÷?。含有情態(tài)動詞的主動句與被動句之間的轉(zhuǎn)換:

主語謂語賓語主語謂語介詞+賓語can/couldmay/mightwill/wouldshall/shouldmustoughtto1.情態(tài)動詞無時態(tài)和

人稱的變化；2.情態(tài)動詞后接動詞

原形。情態(tài)動詞句式結(jié)構(gòu)示例肯定句主語+情態(tài)動詞+be+及物動詞的過去分詞(+by…)Teenagersshouldbeallowedtogoshopping.否定句主語+情態(tài)動詞+not+be+及物動詞的過去分詞(+by…)Thewordcan’tbeusedinthissentence.一般疑問句情態(tài)動詞+主語+be+及物動詞的過去分詞(+by…)?Musttheworkbefinishedtoday?特殊疑問句特殊疑問詞+被動語態(tài)的一般疑問句？Whatshouldhebeaskedtodo?含情態(tài)動詞的被動語態(tài)句子結(jié)構(gòu)含情態(tài)動詞的被動語態(tài)易錯點主語+情態(tài)動詞+not+be+done+其他內(nèi)容.易錯點一：表達否定時，“not”接在情態(tài)動詞后。Paperandwater

wastedbypeople.A.willbenotB.willnotbeC.shouldbenotD.shouldnotbe2.In2050,2G

usedintheworld.A.willbenotB.willnotbeC.shouldbenotD.shouldnotbe易錯點二：情態(tài)動詞+

主語+be+done+其他內(nèi)容?疑問句中，情態(tài)動詞后緊跟主語。判斷下列句子是否正確？正確（T）錯誤（F）Shouldclassroombecleanedbystudents?Mustbemyroomcleanedbymyselfnow?Shouldbefoodwastedbypeople?Canthehomeworkbefinishedtomorrow?Canbemoonseenatnight?TFFTF含情態(tài)動詞的被動語態(tài)注意事項注意事項一：Thelittledogmustbelookedafterwell.

那只小狗必須得到很好的照顧。

一些動詞短語用被動語態(tài)時，動詞短語應視為一個整體，而不能丟掉其中的介詞或副詞。注意事項二：Ioftenseetheoldmanruninthemorning.→Theoldmanisoftenseentoruninthemorning.

我經(jīng)?？匆娔莻€老人早晨跑步。make，see，watch，hear，notice，feel等使役動詞和感官動詞在主動語態(tài)中與省略to的動詞不定式連用，但變?yōu)楸粍诱Z態(tài)后，必須加上to。注意事項三：Thepearstastenice.那些梨味道很好。look,sound,taste,smell等系動詞用主動結(jié)構(gòu)表被動意義。

注意事項四：Thebooksellswell.這本書賣得很好。不及物動詞與狀語連用，用以表示主語的品質(zhì)和狀態(tài)。常見的此類動詞有：cut，sell，read，write，fill，cook，lock，wash，drive，keep等。

含情態(tài)動詞的被動語態(tài)的“發(fā)生”takeplace不及物動詞短語發(fā)生；出現(xiàn)；舉行（某事）按計劃進行或按計劃發(fā)生happen不及物動詞發(fā)生常指具體事件的發(fā)生，特別指那些偶然的或未能預見的“發(fā)生”takeplace和happen沒有被動語態(tài)

情態(tài)動詞被動語態(tài)肯定句：否定句：一般疑問句：句子結(jié)構(gòu)易錯點主+情態(tài)動詞+be+done+其他主+情態(tài)動詞+not+be+done+其他情態(tài)動詞+主+be+done+其他1.表達否定時，“not”接在情態(tài)動詞后。2.疑問句中，情態(tài)動詞后緊跟主語。summary1.—What'sthemeaningoftheactivity“Let'sSave”？—Papershouldn't________ineverydaylife.A.waste B.wastedC.bewastedD.iswasted2.—Thetrafficistoobusy.Wehavetodriveslowly.—Ithinkmorenewroads________inourcity.A.shouldbebuiltB.shouldbuiltC.havebuiltD.build中考鏈接3.

Somepeoplethinktrees___________onTreePlantingDayonly.A.shouldplant B.shouldbeplantedC.shouldbeplant D.shouldbeplanting

Idon'tthinksixteen-year-oldsshould

beallowedtodrive.Iagree.Theyaren'tseriousenough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?

No,Idon'tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemay

beallowedtotakesomephotosifwedon'tuseaflash?Ifyoudon'tuseaflash,thenitmaybeOK.

GrammarFocusshould(not)

beallowedto

(不)應該被允許做…

TotalkaboutrulesTalkaboutschoolruleswith

“should(not)

beallowedto

”Don’tarrivelateforschool.

=Students

shouldnotbeallowedto

arrivelateforschool.Don’tlistentomusicintheclassroom.

=Studentsshouldnotbeallowedtolistentomusicintheclassroom.Talkaboutschoolruleswith

“should(not)

beallowedto

”Don’tfightwithothers.

=Studentsshouldnotbeallowedto

fightwithothers.Talkaboutschoolruleswith

“should(not)

beallowedto

”

=Studentsshouldnotbeallowedtocheat.Don’tcheat.Talkaboutschoolruleswith

“should(not)

beallowedto

”

=Studentsshouldnotbeallowedto

sleepinclass.Don’tsleepinclass.Talkaboutschoolruleswith

“should(not)

beallowedto

”Idon'tthinksixteen-year-oldsshould

beallowedtodrive.Iagree.Theyaren'tseriousenough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?

No,Idon'tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemay

beallowedtotakesomephotosifwedon'tuseaflash?Ifyoudon'tuseaflash,thenitmaybeOK.

GrammarFocusTotalkaboutopinions“同意”

Iagree;Ican’tagreemore;Iapprove;Youareright;Ihavethesameideawithyou;ofcourse;Ith