人教課標(biāo)版高一英語(yǔ)（必修3）unit 2 gramma

人教課標(biāo)版高一必修3Unit2英語(yǔ)課件編輯pptGrammar編輯pptFindthesentencescontainingmodalverbsinthereadingpassage.Thenusuallybylunchtimetheywouldallbesold.Whatcouldhavehappened?Nothingcouldbebetter…Somethingterriblemusthavehappenedif…編輯pptHecouldnotbelievehiseyes.Perhapsheshouldgotothelibraryandfindout.Hehadbetterdosomeresearch!EventhoughhercustomersmightgetthinaftereatingYongHui’sfood…Theywouldbecometiredveryquickly.編輯pptModalverbsa.should,oughtto都可表示“應(yīng)該”。oughtto用于表示按道理應(yīng)當(dāng)，常指客觀的義務(wù)或責(zé)任，大多數(shù)情況下可用should代替，但比should語(yǔ)氣重。Ishouldhelpherbecausesheisintrouble.Yououghttotakecareofthebaby.編輯pptb.表示勸告、建議或命令時(shí)，should和oughtto可通用，但在疑問(wèn)句中常用should。oughtto的否定式為oughtn’tto或oughtnotto。Youshould/oughttogotoclassrightaway.ShouldIopenthewindow?Whatshouldwedonext?編輯pptc.should,oughtto都可表示推測(cè)。Heoughtto/shouldbehomebynow.Thisiswheretheoiloughtto/shouldbe.編輯pptshould和oughtto后面跟動(dòng)詞不定式的完成式,其肯定句表示“過(guò)去應(yīng)該做而未做”,其否定句則表示“過(guò)去不該做但做了”。Youshould/oughttohavemadethedecisionaweekago.Ishouldn’thavemadesuchafoolishmistake.多數(shù)情況下，oughtto可與should互換使用。oughtto的反意疑問(wèn)句用shouldn’t替代。注意編輯pptYououghttohavehelpedhimwithhisEnglish,________?A.won’tyouB.oughtnotyouC.shouldn’tyouD.wouldn’tyou編輯ppt2.must和havetomust的用法

1)表示主觀的義務(wù)和必要,

主要用于肯定句和疑問(wèn)句,

意思為

“必須……，得……，要……”；由must引起的疑問(wèn)句，肯定回答要用must或have

to,

否定回答要用needn’t或don’t

have

to,

意思是“不必”；

編輯pptmust的否定形式mustn’t表示禁止，意思是“不能，不許”。如：

—Must

I

finish

the

task

right

now?

我現(xiàn)在必須完成這個(gè)工作嗎？編輯ppt—Yes,

you

must.

/

Yes,

you

have

to.

是的。

(—No,youneedn’t./No,youdon’thaveto.不，不必。)Youmustn’tcomeherewithoutpermission.未經(jīng)允許，你不能來(lái)這兒。編輯ppthave

to

的用法

1)must表示一種主觀的需要，而have

to表示一種客觀的需要，意思是“不得不”。

如：

Ihavetoattendanimportantmeetingthisafternoon.今天下午我不得不參加一個(gè)重要的會(huì)議。編輯pptMotherisout,soIhavetolookaftertheshop.媽媽不在家，因此我不得不照看商店。

2)have

to

的否定形式是don’thaveto,相當(dāng)于needn’t。如：Theydon’thavetobuyacomputeratpresent.他們目前沒(méi)有必要買(mǎi)電腦。

編輯ppt【考例】Thebosshasgiveneveryoneaspecialholiday,sowe____gotoworktomorrow.(上海2007春)A.can’t B.mustn’tC.needn’t D.shouldn’t【點(diǎn)撥】考查情態(tài)動(dòng)詞。根據(jù)題意,可知這里表示“沒(méi)有必要”,故只能選C項(xiàng)。編輯ppt【考例】─Whatdoyouthinkwecandoforouragedparents?─You____doanythingexcepttobewiththemandbeyourself.(重慶2007)A.don’thavetoB.oughtn’ttoC.mustn’t D.can’t【點(diǎn)撥】根據(jù)題意“除了和他們呆在一起做你自己外,沒(méi)有必要做任何事情?！笨芍@里選擇don’thaveto表示“不必”。故選A項(xiàng)。編輯ppt3.must和needneed作情態(tài)動(dòng)詞時(shí),只能用于疑問(wèn)句和否定句。構(gòu)成否定句和疑問(wèn)句時(shí)不借助于助動(dòng)詞do。

—NeedIfinishtheworktoday?—Yes,youmust./No,youneedn’t.編輯pptb.must的肯定形式表示“必須”，否定式表示“禁止、嚴(yán)禁”。Youmustcomehere.Youmustn’ttakethebookawayfromthelibrary.編輯ppt用下列圖片造句。做適當(dāng)?shù)倪\(yùn)動(dòng)Youshoulddosomesports.編輯ppt慢慢地進(jìn)食，并有助消化。Yououghttoeatslowlyandit’sgoodfordigestion.編輯pptYoushouldhelptosetthedinnertable.編輯pptYoushouldkeepyourroomclean.編輯pptWemustlistentotheteachercarefully.編輯pptWemustn’teatinclass.編輯pptYououghttohandonthehomeworkontime.編輯pptYoushouldn’tbelateforschool.編輯pptWeshouldaskquestionactively.編輯pptWeshouldn’tmakenoiseinclass.編輯pptMakesentences1.你每天最少要練習(xí)一小時(shí)口語(yǔ)。YoumustpractisespeakingEnglishatleastanhouraday．2.我每天不得不練習(xí)一小時(shí)口語(yǔ)！IhavetopractisespeakingEnglishanhouraday!編輯ppt3.你應(yīng)該每天練習(xí)不止一小時(shí)。Yououghtto／shouldpracticeEnglishformorethananhour.4.你應(yīng)該讀一下這個(gè)。它寫(xiě)得很好。Yououghtto／shouldreadthis.It’sverygood.5.你必須讀這個(gè)。寫(xiě)得精彩極了！

Youmustreadthis.It’smarvelous!編輯pptPleasechooseaproperphraseandaccordingtothesituationscompletethesentencesbyusingshould(not)orought(not)to.1.Lisaneedsachange.She_______________________________.2.Mysalaryisverylow.You______________________.should/oughttotakeafewdaysoffshouldlookforanewjob編輯ppt3.Nickalwayshasdifficultygettingup.He___________________________________.4.Whatabeautifulview!You__________________.5.Billy’sroomisn’tveryinteresting.He______________________________________.oughtnotto/shouldn’tgotobedsolateshouldtakeaphotoshouldn’t/oughtnottousehercarsomuch編輯pptChoosesuitablemodalverbsbelowtocompletethefollowingdialogues.ought/oughtn’ttoshould/shouldn’tmustn’tneedn’t(don’t)havetowillcan/can’t1Sam:HowcanIgrowthinner,Mum?Mum:Well,you_______eatfoodwithplentyoffibrethathelpsyoudigestbetter.Andyou_____stopdrinkingcolaoreatingsweetfood.havetoshould編輯pptSam:DoesitmeanI_________eatmyfavouritefriedchickenanymore?Mum:Notexactly,ifyoulovefriedchicken,you______giveitup.Justeatitlessoften.You______________________________worrytoomuch:alittlefriedchicken____doyougood!shouldn’tneedn’tdon’thaveto/needn’t/shouldn’twill編輯ppt2Doctor:Youaresickbecauseyou’veeatenpoisonousmushrooms.Wheredidyougetthem?Lucy:Ipickedthemintheforest.Iknowwe_______eatfreshvegetables.Doctor:Oh,butyou_______eatthemuntilyou’resuretheyarenotpoisonous.Lucy:Thankyou,doctor.I’llbemorecarefulnexttime.havetomustn’t編輯ppt3Charles:IwishIcouldseethingsclearlyinthedark.Tom:Eatingcarrots_______helpyouseebetter.You_______eatsomeeveryday.oughttoshould編輯ppt1._______todiscusssomethingwithsomeonesothatyoucanmakeadecisiontogether2._______tochangefoodthatyouhavejusteatenintosubstancesthatyourbodycanuse練習(xí)坊I.根據(jù)下列英文解釋寫(xiě)出所缺的單詞。consultdigest編輯ppt3.______alongpointedorangevegetablethatgrowsundertheground4.__________containingpoisonorproducingpoisoncarrotpoisonous編輯ppt1.Foralongtime,I’vebuiltmybusinesswithpeoplewhoare________(精力旺盛的),creative,andhappyabouttheirwork.2.Thisrichfooddoesn’t_____(消化)easily.energetic digest根據(jù)下列各句句意及所給單詞的漢語(yǔ)提示,寫(xiě)出各單詞的正確形式。編輯ppt3.Thedishofboiledbeefand_____(胡蘿卜)tastesgood.4.Anincreasingnumberofpeopleare_________(請(qǐng)教)theiraccountantsaboutthetaxlaws.5.Thismedicineis_________(有毒)iftakeninlargequantities.carrotconsultingpoisonous編輯pptmust;oughtn’tto;don’thaveto;couldn’t;mustn’t;needn’t;can’t;havetoII.用所給的情態(tài)動(dòng)詞填空。1.You_______________________goonworkingbecauseyoulooksotirednow.2.Theweatherturnedouttobefineyesterday.I_______havehadthetroubletocarrymyumbrellawithme.oughtn’tto/don’thavetoneedn’t編輯pptmust;oughtn’tto;don’thaveto;couldn’t;mustn’t;needn’t;can’t;haveto3.Ifyouearnmorethan￡5,000,you_______paytax.4.You_______playnow!Youshallfinishyourhomeworkfirst!5.Iknowthingsarehardwithyou,butyou_____________trytogetoverthedifficulties.havetomustn’tmust/haveto編輯pptmust;oughtn’tto;don’thaveto;couldn’t;mustn’t;needn’t;can’t;haveto6.Ididn’tseeheratthemeetingthismorning;she_____________havespokenatthemeeting.couldn’t/can’t編輯ppt1.Ithoughtyou__likesomethingtoread,soIhavebroughtyousomebooks.A.mayB.mightC.wouldD.must2.Whereismypen?I____it.A.mightloseB.wouldhavelostC.shouldhavelostD.musthavelost高考鏈接編輯ppt3.Ididn’thearthephone.I__asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen編輯ppt4.--IsJohncomingbytrain?--Heshould,buthe__not.Helikesdrivinghiscar.(2002高考題）

A.mustB.canC.needD.may5.Ithasbee