Unit+4+Period+3++Grammar 牛津译林版英语八年级下册

译林版初中英语译林版八年级下册Unit4Period3Grammar新课导入FreeTalk1.Whatdoyouknowabout“must”,“mustn't”,“haveto”and“don'thaveto”?2.Canyouknowtheirsimilaritiesanddifferences(相同点和不同点)?12能熟悉并能正确运用本课时的重点单词和短语。能掌握“疑问词+动词不定式”的用法。3能掌握must和haveto的用法。1.Themathsproblemwasnotdifficult,buthedidn'tknow______.A.whattodoit B.howtodoit C.howtodo D.todowhat2.Mymotherwasill.I______stayathometolookafterher.A.must B.hadto C.could D.can3.—Whosebookisthis?—It______beourGeographyteacher's.Yousee,hisnameisonit.A.can't B.can C.mustn'tD.must预习检测BBD4.—HasJimknownthebadnews?—Notyet.We'rethinkingabout______totellhimaboutit.A.whyB.what C.which D.how5.—Ihavehadafantastictimehere.Butit'stimetosaygood-byenow.—Really?Letmecallataxiforyouifyou______leavenow.A.havetoB.areableto C.hadbetter D.needn'tDA知识梳理LanguagePoints1.Thestudentsaskedtheirteacherwhentohandintheirwork.学生们问老师什么时候交作业。handin上交，递交e.g.Time'sup.Stopwritingandhandinyourpapers.时间到了。不要再写了，把试卷交上来。2.Youcanwriteanythingaboutyourbook—whatthebookisabout,whatyouthinkofitandsoon.你可以写任何关于你的书的东西——这本书是关于什么的，你对它的看法等等。andsoon

……等等e.g.Ilikeplayingbasketball,soccerball,volleyball,ping-pongandsoon.我喜欢打篮球、足球、排球、乒乓球等。3.Youmustreturnthebooksontime.你必须按时归还书。ontime准时，按时e.g.Shealwayspaysherbillsontime.她总是按时支付账单。“疑问词+动词不定式”的用法Wecanuseaquestionwordwithato-infinitiveafteraverb.我们可以在动词后面加上“疑问词+动词不定式”。Milliehasdecided

whattoread.Danieldidnotsay

whototalkto

aboutthisbook.Simonforgot

whentomeet

hisfriends.Kittycannotdecidewhichtochoosefirst.Sandyiswonderingwheretoaskforhelp.Amydoesnotknowhowtowritethereport.总结一:谓语V.

+疑问词+todoAllquestionwordscanbeusedinthisway,exceptwhy.所有疑问词都可以这样使用，除了why。√×Suzywillexplainwhytorecommendthisbook.Suzywillexplainwhysherecommendthisbook.Wecanuseaverb+objectbeforeaquestionwordwithato-infinitive.我们可以在“疑问词+动词不定式”结构前用动词+宾语。MrWuadviseduswhichtochooseasafter-schoolactivities.Thestudentsaskedtheirteacherwhen

tohandintheirwork.Millieshowedus

whattodonext.Danieltaughthimself

howtouseacomputertodraw.Don'tforgetto

tellyourmumwheretomeet

you.adviseaskdecidediscussfindoutforgetknowlearnremembersayshowteachthinkunderstandwonder总结二：谓语V.+宾语sb.+疑问词+todoWecanuseanounafterwhat,which,whose,howmanyandhowmuch.我们可以在what,which,whose,howmanyandhowmuch后面用名词。Theyarediscussingwhichcolortopaintthewalls.Youcanaskyourparentshowmuchmoneytotakewithyou.总结三：谓语V.+疑问词+n.（名词）+todoWecanalsouseanadjectivelikesureorclearbeforeaquestionword.我们也可以在疑问词前使用形容词，如sure或clear。Suzywasnotsurewhotoaskforhelp.Areyouclearwhentomeetatthegatetomorrow?总结四：形容词+疑问词+todoAmyandDanielaretalkingabouttheirReadingWeek.Completetheirconversation.Usethecorrectquestionwordsandto-infinitives.howwhatwhenwherewhichwhoaskforfindhandinreadtravelwriteaboutAmy:MrWuhasrecommendedsomanyinterestingbooks.Haveyoudecided(1)____________first,Daniel?Daniel:Yes.IwanttoreadBlackBeautyfirst.ButIdon'tknow(2)___________thebook.Amy:YoucantryourschoollibraryorSunshineLibrary.Oh,didyouknowPeterisreadingAroundtheWorldinEightyDays?Hewantstofindout(3)____________aroundtheworldinsuchashorttime.whichtoreadwheretofindhowtotravelDaniel:Wow,that'samazing!Bytheway,canyoutellme(4)______________ourbookreport?Amy:BeforenextFriday.I'mstillnotsure(5)_________________inthereport.Daniel:Youcanwriteanythingaboutyourbook—whatthebookisabout,whatyouthinkofitandsoon.Youshouldreadsomereviewsaboutthebookbeforewriting.Amy:Thankyou.Anyway,Iknow(6)______________helpwithwriting.MrWuisalwaystheretohelpus.whentohandinwhattowriteaboutwhotoaskfor通过以活动小结通过以上的活动，我们学习了“疑问词+动词不定式”的用法：我们可以用“疑问词+动词不定式”结构做动词的_____，疑问词不包括____；该结构前除了动词还可以是___________和_______。宾语why动词+宾语形容词探究二must和haveto的用法Weusemustandhavetotosaythatitisnecessarytodosomething.我们用must和haveto来表示做某事是必要的。Weusemustwhenthespeakerfeelsthatsomethingisnecessary.当说话者认为某事是必要的时，我们使用must。“Imustrunawayfromthem,”Gulliverthought.Weusehavetowhenthesituationmakessomethingnecessary.当情况需要某事时，我们使用haveto。Ihavetousethemtoreachtheboxonthefridge.Shehastotakeherdaughterfromschoolintheafternoon.Weusemustnotto

saythatsomethingisnotallowed.我们用mustnot来表示某事是不允许的。Youmustnotsmokeinthelibrary.Weusedonothavetotosaythatitisnotnecessarytodosomething.我们用donothaveto表示不需要做某事。Wedonothavetogotoschoolatweekends.Tip:Havetohasdifferentforms.hastohadtowillhavetohave/hasgottoTip:mustnot=mustn'tdonothaveto=don'thavetoAmyistellinghercousinShirleysomelibraryrules.Completewhatshesayswithmust,mustnot,havetoordonothaveto.You(1)_____keepquietinthelibrary.You(2)_____keepthebookscleanandtidy.You(3)_______draworwriteonthebooks.You(4)_______eatordrinkinthelibrary.You(5)_____returnthebooksontime.Ifyouwanttokeepthemlonger,you(6)______renewthem.You(7)____________bringyourstudentcardeverytimeyougotothelibrary,butremembertobringyourlibrarycard.mustmustmustn'tmustn'tmusthavetodon'thaveto活动小结通过以上的活动，我们学习了must和haveto的用法：must表示______的义务和必要，其否定形式是________；haveto表示_______的需要，其否定形式是___________。主观mustnot客观donothaveto当堂检测一、选词填空。1.I___________

work

hard

at

my

lessons.2.I

___________

look

after

mother

at

home.Because

she

is

ill.3.We____________waitforhim.Hehasleft.4.You____________swimhe