2019-2020學(xué)年高中英語Unit4WildlifeProtectionSectionBLearningaboutLanguage課件新人教版必修2

Unit4WildlifeprotectionSectionB

LearningaboutLanguage單元語法現(xiàn)在進行時的被動語態(tài)一、構(gòu)成肯定式：主語+am/is/are+beingdone.否定式：主語+am/is/arenot+beingdone.一般疑問式：Am/Is/Are+主語+beingdone?特殊疑問式：疑問詞+am/is/are+（主語+）beingdone?二、用法（1）表示說話時正在進行的被動動作。（2）表示現(xiàn)階段正在進行的被動動作，說話時不一定在進行。（3）表示一種經(jīng)常性的被動行為，常與always，constantly，frequently等表示頻度的副詞連用，帶有贊賞或厭惡等感情色彩。（4）表示按計劃或安排將要發(fā)生的被動動作（僅限于少數(shù)及物動詞）。三、注意事項（1）一些表示狀態(tài)、心理活動、擁有、存在等的動詞，如have，want，need，love，realize等，一般不用于進行時，因而也沒有進行時的被動語態(tài)，而常用一般現(xiàn)在時的被動語態(tài)表示此刻或目前主語正承受謂語動詞表示的動作。瑪麗，過來，有你的電話。Mary，comehere.You’rebeingwantedonthephone.（×）Mary，comehere.You’rewantedonthephone.（√）（2）少數(shù)動詞用于現(xiàn)在進行時態(tài)，用主動形式表示被動含義，如print，cook，fry，hang等。（3）“be+in/on/under+名詞”常含被動意義，可代替現(xiàn)在進行時的被動語態(tài)。（4）因為被動語態(tài)的基本結(jié)構(gòu)為bedone，不少學(xué)生誤將現(xiàn)在進行時的被動語態(tài)結(jié)構(gòu)“am/is/are+beingdone”寫成一般現(xiàn)在時的被動語態(tài)結(jié)構(gòu)“am/is/are+done”。瞧，這條道路正在建設(shè)中。Look!Theroadisbuilt.（×） Look!Theroadisbeingbuilt.（√）晚宴正由克里斯蒂娜準備著。ThedinnerispreparedbyChristina.（×）ThedinnerisbeingpreparedbyChristina.（√）四、句型轉(zhuǎn)換現(xiàn)在進行時的被動語態(tài)與現(xiàn)在分詞的被動式beingdone均可表示正在進行的被動動作，因此它們之間可以相互轉(zhuǎn)換?！粽`區(qū)警示非謂語動詞的被動形式，表達不同時間的被動意義，作用也不一樣。tobedone：不定式的被動形式，表將來和被動beingdone：現(xiàn)在分詞的被動形式，表進行和被動havingbeendone：現(xiàn)在分詞完成式的被動形式，表完成和被動練習(xí)一單句語法填空(1)Look!Thebaby_____________（take）careofbyheraunt.(2)［詞匯復(fù)現(xiàn)］Anewhouse___________________（decorate）outsideourschoolatpresent.(3)Anewlibrary_____________（build）here.Theyhopetofinishitnextmonth.(4)Hi，I’mAlice.Lookatthisphoto—asnowman_____________（make）byme.(5)Atpresentanewhome_____________（build）forpandas.(6)Isthebridge_____________（repair）now?isbeingtaken

isbeingdecorated

isbeingbuiltisbeingmade

isbeingbuilt

beingrepaired(7)Toourdelight，manyendangeredspecies__________________（protect）bythegovernmentnow.(8)Manyinterestingexperiments_______________（carry）outthesedays.(9)Sinceyourbike_______________（repair），youcanusemine.(10)Daisyhasfoundthatalotofantelopes_______________（hunt）andkilledforthewoolbeneaththeirstomachsnow.

(11)Thenewgenerationofcomputers，withartificialintelligence，__________________（develop）andperfectednow.arebeingprotected

arebeingcarried

isbeingrepaired

arebeinghunted

arebeingdeveloped(12)［2017·江蘇卷］Hehurriedhome，neveroncelookingbacktoseeifhe__________（follow）.(13)—Idon’tsupposethepoliceknowwhodidit.—Well，surprisinglytheydo.Amanhasbeenarrestedand__________________（question）now.(14)—Haveyouhandedinyourschoolworkyet?—Yes，Ihave.Iguessit_______________（grade）now.(15)—What’sthatnoise?—Oh，Iforgottotellyou.Thenewmachine_______________（test）.wasbeingfollowed

isbeingquestioned

isbeinggraded

isbeingtested練習(xí)二單句寫作(1)Thesebirds__________________（正在被保護）wellhere.(2)Thesportsmeeting__________________（正在被舉辦）inourschool.(3)Howmanybuildings__________________（正在被修建）inthetown?(4)Thegiantmachine__________________（被拆卸）atthemomentanditwillbefixedupinthenewworkshopinthenearfuture.(5)Theclassroom__________________（被裝飾）withballoonsandflowersrightnowandthestudentsarepreparingfortheNewYearparty.arebeingprotected

isbeingheldarebeingbuiltisbeingtakenapart

isbeingdecorated

(6)Itisreportedthatmanyanewhouse__________________（正在被建造）atpresentinthedisasterarea.(7)He______________________（總是受到表揚）bytheteacher.(8)Thewindowofourclassroom__________________________（經(jīng)常被打破）.(9)Thesumthesecomputerswillcostus__________________（正在計算中）.(10)Withthepopulationincreasing，moreland__________________（需要）.isbeingbuiltisalwaysbeingpraised

isfrequentlybeingbroken

isbeingcalculated

isneeded

練習(xí)三句型轉(zhuǎn)換(1)請告訴我此刻正在舉行的會議的有關(guān)情況。Pleasetellmesomethingaboutthemeetingbeingheldnow.=Pleasetellmesomethingaboutthemeeting________________________.(2)我發(fā)現(xiàn)國旗正在升起。Ifindthenationalflagisbeingraised.=Ifindthenationalflag____________.(3)電腦現(xiàn)在正在使用中。Thecomputerisinusenow.=Thecomputer_____________now.whichisbeingheldnow

beingraised

isbeingused(4)近來這些高科技產(chǎn)品正在展出中。Thesehigh-techproductsareondisplaythesedays.=Thesehigh-techproducts__________________thesedays.(5)此刻，那座城堡正遭到襲擊。Thecastleisunderattackatthemoment.=Thecastle__________________atthemoment.arebeingdisplayed

isbeingattacked(6)這條公路正在修建/建造中。Thehighway