Unit6TVprogrammes第4課時(shí)GrammarLearningobjectives1.Touseif-clausetotalkabouttheresultofapossibleaction.2.Touseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.3.Beabletolearntobeagoodlistenerandrespondtotheteacher’sinstructionsactively.LeadinEnjoyasong:IfYouAreHappyIfyouarehappyandyouknowit,clapyourhands.(主句)Ifyouarehappyandyouknowit,stompyourfeet.(主句)Ifyouarehappyandyouknowit,shouthooray.(主句)Ifyouarehappyandyouknowit,doallthree.(主句)Let’sreview1.Thefilmstar_______(die)inhishouseandnoonecouldtellthereasonofhis_______(die).2.Childrenallenjoy_________(watch)TVprogrammes.3.Sheisaveryactivegirl.Herhobbiesincludehikingand___________(photo).4.Doyoulikethefilm________(direct)byZhangYimou?5.Two_________(thousand)workerswillattendthemeeting.用所給詞的適當(dāng)形式填空。diedwatchingdeathphotographydirectedthousand

Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Ifyouenjoysolvingmysteries,youmightlikethisfilm.

Let’slearnHavealookifweatherpermitswewillgototheparktomorrowIf-clause(從句)Mainclause（主句）If-clause(一般現(xiàn)在時(shí))Main-clause(一般將來(lái)時(shí))=Main-clause(一般將來(lái)時(shí))If-clause(一般現(xiàn)在時(shí)),Ifweatherpermits,wewillgototheparktomorrow.=wewillgototheparktomorrowifweatherpermits.Let’slearn1.如果主句含有will時(shí)，從句通常用一般現(xiàn)在時(shí),主句用一般將來(lái)時(shí)，即“主將從現(xiàn)”原則。2.如果主句中含有may,can,might等情態(tài)動(dòng)詞時(shí),從句通常用一般現(xiàn)在時(shí)。小結(jié)Let’slearnLet’sdoCompletethesentenceswiththecorrectformsoftheverbsinbrackets.IfI____(go,willgo)totheReadingClubthisafternoon,I_____________(donothave,maynothave)anytimetowatchTV.2.IfSimon_____(gets,willget)homelate,he__________(misses,willmiss)hisfavouritecartoon.3.IfAmy__________(completes,willcomplete)allherhomeworkquickly,she___________(watches,willwatch)thechatshow.gomaynothavegetswillmisscompleteswillwatch4.IfDaniel________(takes,willtake)partinthegameshow,he_________(wins,mightwin)aprize.5.IfSandy_______(finds,willfind)aprogrammeinteresting,she_____________(introduces,willintroduce)ittous.takesmightwinfindswillintroduceLet’sdoDad:Whatwillabeardoifit’sindanger?Millie:Ifabear(1)____________,it(2)___________people.Dad:

Whatwillapolarbeardoifit’shungry?Millie:Ifapolarbear(3)______________,it(4)_________fishfromthewater.Dad:Whatwillelephantsdoifthey’rethirsty?Millie:Ifelephants(5)_____________,they(6)_______until

theyfindariver.isindangerwillattackishungrywillcatchattackcatchhuntliveprotectwalkarethirstywillwalkLet’sdoDad:Whatwilltigersdoiftheyliveinthewild?Millie:Tigers(7)___________fortheirownfoodifthey(8)______________.Dad:Whatwilltigersdoiftheyhavebabies?Millie:Tigers(9)__________asafamilyifthey(10)____________.Dad:Whatwillmalewolvesdoifthere’sdanger?Millie:Malewolves(11)____________theirfamiliesifthere(12)___________.willhuntliveinthewildwilllivehavebabieswillprotectisdangerLet’sdoLet’slearn1.Unlessyoutakemorecare,you’llhaveanaccident.

2.Mybabysisternevercries

unlesssheishungry.

3.Don’tpromiseanythingunlessyou’re100percentsure.

Havealookunlessyouworkhardyou’llfailinEnglishunless-clause(從句)Mainclause（主句）unless-clause(一般現(xiàn)在時(shí))Main-clause(一般將來(lái)時(shí))=Main-clause(一般將來(lái)時(shí))unless-clause(一般現(xiàn)在時(shí)),Unlessyouworkhard,you’llfailinEnglish.=You’llfailinEnglishunlessyouworkhard.Let’slearnunless作連詞，意為“如果不，除非”，在句中引導(dǎo)條件狀語(yǔ)從句，相當(dāng)于if...not。與if一樣，unless引導(dǎo)的條件狀語(yǔ)從句常用一般現(xiàn)在時(shí)態(tài)表示將來(lái)。unless引導(dǎo)的從句既可以放在主句之前，也可以放在主句之后。當(dāng)從句位于主句之前時(shí)，常用逗號(hào)與主句隔開。小結(jié)Let’slearnThesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.→Thesituationwillcontinueifhumans________(not)stophuntingthemfortheirfurandbones.2.Unlessitrainstomorrow,wearegoingtoplayfootballinthepark.→Ifit_______(not)raintomorrow,wearegoingtoplayfootballinthepark.donot將下列句子用if...not進(jìn)行改寫doesnotLet’sdoAtriptoafilmandTVstudioUnlesstheweatherreportsaysitisgoingtorain,_________________________________________cyouwillnothavetotakeanumbrellawithyou.dunlessthetrafficisveryheavy.fyouwilltravelarounditwithatourguide.aunlessyoutakeyourownfoodwithyou.byouwillnotneedtotaketheminibusinthestudio.eunlessyouhavelittleinterestinit.Let’sdo2.Wewillarriveatthestudioaround9:30a.m._________________________________________dunlessthetrafficisveryheavy.fyouwilltravelarounditwithatourguide.aunlessyoutakeyourownfoodwithyou.byouwillnotneedtotaketheminibusinthestudio.eunlessyouhavelittleinterestinit.Let’slearn3.Unlessyoualreadyknowthestudioverywell,_________________________________________fyouwilltravelarounditwithatourguide.aunlessyoutakeyourownfoodwithyou.byouwillnotneedtotaketheminibusinthestudio.eunlessyouhavelittleinterestinit.Let’slearn4.Youwillbuyyourlunchattherestaurantsinthestudio_________________________________________aunlessyoutakeyourownfoodwithyou.byouwillnotneedtotaketheminibusinthestudio.eunlessyouhavelittleinterestinit.Let’slearn5.Unlessyouaretired,_________________________________________byouwillnotneedtotaketheminibusinthestudio.eunlessyouhavelittleinterestinit.Let’slearnWhyarewildanimalsindanger?Whatcanwedotohelpthem?Theyareindangerbecausethesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones…thesituationwillcontinueunless...IfIam

ateacher,I

willask

mystudentstoprotectthem.IfIam

awriter,Iwill…IfIam…adoctor,asinger,apoliceman,anactor(演員),adirector(導(dǎo)演),abusinessman(商人),aphotographer(攝影師)…Discussion

DrillsSummaryif條件句

if

“如果”,引導(dǎo)條件狀語(yǔ)從句，主句用一般將來(lái)時(shí)，從句則用一般現(xiàn)在時(shí)。主句是祈使句或含有情態(tài)動(dòng)詞，從句也用一般現(xiàn)在時(shí)。unless條件句unless引導(dǎo)的條件句，表示強(qiáng)烈的否定。翻譯為“除非……”“非……不可”。條件狀語(yǔ)從句主要由if或unless引導(dǎo)Exercise1.Theywon’tgettothecinemabefore