11情態動詞（Modalverb）情態動詞canmay

wouldcouldmustshouldmightwillneedoughttocan表示請求，允許，現在的能力和猜測。

________Igonow?(請求)You_____parkyoucarhere.(允許)She_____speakthreelanguages.(現在的能力)Thenews_____notbetrue.(猜測)can,could,may,might的主要用法ReadandrememberLookandsayCan/Maycancancan

could表示比can更客氣的請求,把握不大的猜測。還可能表示過去的能力,但不指已經做過的某事的能力。

________Ismokehere?(請求比can更客氣)You_______beright,butIdon’tthinkyouare.(把握不大的猜測)Whenhewasyoung,he______work24hourswithoutrest.(過去的能力)ReadandrememberCouldcouldcouldLookandsaymay/might的主要用法may表猜測，意為“可能，也許”，可能性不如must。通常用于肯定句和否定句中。may還可以表示允許。Readandremember2.我可能是對的。ImaygotoAmerica.1.我可能去美國。Youmayberight.3.我能開窗嗎？是的，你可以。MayIopenthewindow?Yes，youmay.Lookandsayeg.---WhereisAnne?---Idon’tknow.Shemightbeintheclassroom.

Readandremembereg.Shesaidthathemighttakeherdictionary.might表可能發生或有可能性，其可能性比may小.

might為may的過去時態，表過去的“可能”和“允許”，多用于間接引語。may/might的主要用法：1)I_________(shall/will)seeyoutomorrow.2)We________(shall/will)gotoCenturyParkthisSunday.

shall/should/oughtto的主要用法：Readandremembershall/willShallshallshall/will1)_____(Shall/Will)wedance?2)Let’sgotohaveapicnic,_____(shall/will)we?Shall與第一人稱I,we連用表將來。Shall用于第一人稱征求對方的意愿。Lookandchooseanoiseinthelibraryintheclassroom45theschooluniform3Lookandsay2.用于表示推測的詞，意謂“可能”。如：Theyshouldarrivesoon.3.shall的過去時態,如：Weaskedifweshouldhelpher.(should否定式是shouldnot或其縮寫形式shouldn’t.)should是情態動詞，意為“應該”，表示應該做某種事情，或者表示現在應承擔某種責任或義務，有時表示一種推測。ReadandrememberMedicineforMrLeeMrLeeshould/oughtto…MrLeeshouldn’t/oughtn’tto…GivesomeadvicetoMrLee.LookandsayMedicineforMsJonesMsJonesshould/oughtto…MsJonesshouldn’t/oughtn’tto…GivesomeadvicetoMrsJones.LookandsayMedicineforMrCollinsMrCollins…GivesomeadvicetoMrCollins.Lookandsay★oughtto后接動詞原形，表責任或義務，譯為“應該，應當”.★oughtto可用于否定句,其否定形式可縮略為oughtn’t.oughtto一般認為與should意思相近,其主要用法如下：Readandremembereg.Yououghttogotoseethedoctor.Weoughttostartatonce.eg.Yououghtnottosmokesomuch.Yououghtnot(oughtn’t)tosmokesomuch.must/haveto的主要用法eg.1)Wemustobeyrules.2)Hemustkeepquietinthelibrary.must表必須，必要。mustnot/mustn’t譯為“不應該”。eg.1)Youmustn’twastewater.2)MayItakethisbookout?No,youmustn’t.(不，不行。)Readandremembereg.---MustIgotomorrow?---Yes,_________________./No,you____________________.Readandremembermust/I’mafraidsoneedn’t/don’thavetoLookandsaymust用于一般疑問句時，其肯定答語應用。Yes,youmust或I’mafraidso,其否定答語應No,youneedn’t或No,youdon’thaveto.1Mum:Wouldyoulikesome________________?Kitty:No,thanks.Idon’tlike__________.I’dratherhavesome___________________.2Mum:_____________________________________?Kitty:Yes,please._________________________.colacolaorangejuiceWouldyoulikesomericedumplingsIlikericedumplingsLookandsay3Mum:_____________________________________?Kitty:Yes,please._________________________.4Mum:_____________________________________?Kitty:__________________________________________________________________________.WouldyoulikesomedumplingsIlikedumplingsWouldyoulikesomemooncakesNo,thanks.Idon’tlikemooncakes.I’dratherhaveahamburger.LookandsayI________haveameetingtomorrowafternoon.will,would的主要用法：would是will的過去式。Readandrememberwill表將來意圖。will表示意愿。willYouneed’thelpme.I______doitmyself.willTheyaskedusifwe______gotherefirstnextday.wouldwould可表婉轉請求,語氣較will委婉。eg.1)Ineedtobuyeggseveryweek.2)Heneedstotakethemedicinethreetimesaday.3)Maryneededtocomeyesterday.4)Doessheneedtotakeherraincoat?need的主要用法：Simon,you______doyourhomeworktoday.Leaveitfortomorrow.needn’ttoB)notneedto C)don’tneed D)don’tneedtoReadandremember★need作為實義動詞時，后帶to的動詞不定式，有現在時第三人稱詞尾-s,過去分詞-ed.Lookandchooseeg.1)Heneedn’tgotothepartythisevening.2)Needhegooutfordinner?You________worryaboutdifficulties.Wewillallhelpyou.A)needn’tB)needn’ttoC)don’tneed D)notneedReadandremember★need作為情態動詞,后接動詞原形，多用于否定句和疑問句中。Lookandchooseeg.Needhetellyouwhattodo?疑問句的否定回答：No,youneedn’t.疑問句的肯定回答：Yes,youmust.-Mum,todayisFriday.MustIfinishmyhomeworknow?-No,you______.Youmayhavearestfirstandfinishittomorrow.A)mustn’t B)can’t C)maynot D)needn’tReadandrememberLookandchoose★need作為情態動詞使用時不用在肯定句中，在肯定句中要用must,haveto,oughtto,should等來表示。12行為動詞（Actionverb）行為動詞情態動詞后必須加行為動詞（或加助動詞表示猜測）。Readandremember英語中動詞可以分為：實意動詞和非實意動詞。一般實意動詞，也稱為行為動詞。行為動詞可以分為及物動詞和不及物動詞，可以單獨作謂語。非行為動詞包括各類助動詞，如情態動詞，系動詞和do，did等等，不能獨立構成謂語。比如：hit是實意動詞，因為“打”是作為一個真實動作而存在，must，can等不是實意動詞，本身并沒有真實的動作存在，要加上實意動詞后才能構成謂語。Readandremember一般,根據不同時態，行為動詞相應地在肯定，否定和疑問句中要與be動詞，do/does/d