Unit3TheInternetDiscoveringUsefulStructures課件-高中英語人教版

UNIT3THEINTERNET

PeriodIIIDiscoveringUsefulStructuresStepI學(xué)習(xí)理解Lookatthepicturesandfillintheblanks.1.The2022OlympicWinterGames__________(hold)inBeijing,China,andsurroundingareas.2.Chineseathletes

(praise)fortheirwonderfulperformancesintheOlympicGames.3.Thisapp

(use)severaltimessinceIdownloadedit.wereheld

werepraised

hasbeenusedTheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.()Jan’slifehasbeengreatlyimprovedbytheInternet.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.()()()Answerthefollowingquestionandfillintheblank.?Howdoweformthepresentperfectpassivevoice?VerbformActivehave/has+v-edPassive_________________have/hasbeen+v-edCompletethesentenceswiththepresentperfectorthepresentperfectpassivevoice.havebeenproduced

hasreproduced

havebeenhelpedhasnotbeenunearthed

havebeendestroyedChangethesentencesintothepresentperfectpassivevoice.EXAMPLEThey’vebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?Changethesentencesintothepresentperfectpassivevoice.4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?EXAMPLEThey’vebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.Hasthebuttonbeenpressedyettocopythefile?Findoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.Brainstormanddiscusshowthepresentperfectpassivevoiceisused.Studythegrammar.Thepresentperfectpassivevoice現(xiàn)在完成時的被動語態(tài)現(xiàn)在完成時的被動語態(tài)的含義：

現(xiàn)在完成時的被動語態(tài)強(qiáng)調(diào)一個發(fā)生在過去的被動動作，它有三層意思。1.動作已完成，強(qiáng)調(diào)對現(xiàn)在造成的影響或結(jié)果。2.動作一直持續(xù)到現(xiàn)在。3.主語和謂語動詞之間為被動關(guān)系。

Studythegrammar.現(xiàn)在完成時的被動語態(tài)的用法

1.用于不知道動作的執(zhí)行者是誰時。2.用于動作的執(zhí)行者是泛指或不言自明時。3.用于可以說出動作的執(zhí)行者，但動作的承受者是談話中心或特別需要強(qiáng)調(diào)時。4.用于動作的執(zhí)行者不是人時。5.用于出于禮貌、委婉而避免提及自己或?qū)Ψ綍r。

Studythegrammar.現(xiàn)在完成時的主動語態(tài)變被動語態(tài):

1.只帶有一個賓語的動詞變?yōu)楸粍诱Z態(tài)時，將主動語態(tài)的賓語變?yōu)楸粍诱Z態(tài)的主語。Wehavebuiltmanyhousesinthepasttenyears.(主動)→Manyhouseshavebeenbuiltinthepasttenyears.(被動)2.帶有雙賓語的動詞，如give、send、bring、take、teach、show、tell、make、sing、write、read、sell、buy、pay、lend、pass、promise等，變?yōu)楸粍诱Z態(tài)時，可將其中一個賓語變?yōu)橹髡Z，另一個保留不動。

Wehavegivenhimabook.(主動)→Hehasbeengivenabook.(被動)→Abookhasbeengiventohim.(被動)Studythegrammar.現(xiàn)在完成時的主動語態(tài)變被動語態(tài):

3.帶有復(fù)合賓語的動詞變?yōu)楸粍诱Z態(tài)時，只能將賓語變?yōu)橹髡Z，原來的賓語補(bǔ)足語變?yōu)橹髡Z補(bǔ)足語，原來省略to的不定式作賓語補(bǔ)足語，被動語態(tài)中要用帶to的不定式。Ihavefoundhimlyingonthefloor.(主動)→Hehasbeenfoundlyingonthefloor.(被動)Studythegrammar.StepII應(yīng)用實(shí)踐Fillintheblankswiththecorrectformsoftheverbsinbrackets.Coca-Cola

(enjoy)allovertheworld.1.6billiongallons

(sell)everyyear,inoveronehundredandsixtycountries.Thedrink

(invent)byDrJohnPembertoninAtlantaasahealthdrinkon8May1886,butitwasgiventhenameCoca-Colabyhispartner,FrankRobinson,becauseit

originally

(make)fromthecocaplant.Inthefirstyear,onlyninedrinksaday

(sell).Thebusiness

(buy)byamancalledAsaCandlerin1888,andthefirstfactorywasopenedinDallas,Texas,in1895.Coca-Cola

still

(make)there.Billionsofbottlesandcans

(produce)since1895,buttherecipe_______still_________(keep)secret!DietCoke

(make)since1982,andovertheyearsmanycleveradvertisements

(use)toselltheproduct.ItiscertainthatCoca-Cola

(drink)farintothetwenty-secondcentury.hasbeen