+Unit+4+SectionA+(Grammar+Focus~3c)課 人教版英語七年級下冊

Don’teatinclass.SectionA(GrammarFocus-3c)Unit4目錄CONTENTS學(xué)習(xí)目標新課講解課堂小結(jié)新課導(dǎo)入當堂小練課后作業(yè)Structures:①—Don’truninthehallways.②—Whataretherules?—Wemustbeontimeforclass.③—Canweeatintheclassroom?—No,wecan’t,butwecaneatinthedininghall.④—Doeshehavetowearauniformatschool?—Yes,hedoes./No,hedoesn’t.⑤—Whatdoyouhavetodo?—Wehavetobequietinthelibrary.PAIRWORKA:Canwe…inLantianMiddleSchool?B:Yes,wecan./No,wecan’t.A:Whatelsedowehavetodo?B:Wehaveto…新課導(dǎo)入Lookatthesepicturesandwritedowntherules.Wehaveto_____________wearauniformDon’t______.

fightWehavetoeatinthe_________.

dininghall______drawonthewall.Don’tBoys_______haveshorthair.

havetoWe________cleantheclassroom.

havetoDon’truninthehallways.Don’tfight.Whatarerules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecan’t,butwecaneatinthedininghall?Canwewearahatinclass?Yes,wecan./No,wecan’t.Doeshehavetowearauniformatschool?Yes,hedoes./No,hedoesn’t.Whatdoyouhavetodo?Wehavetobequietinthelibrary.GrammarFocus1.祈使句:表示請求、命令等語氣的句子,其結(jié)構(gòu)為省去主語you的簡單句?？隙ㄆ硎咕?/p>

否定祈使句①Sitdown.②Comein.③Eatathome.④Listentomusicoutside.⑤Doyourhomeworkatschool.Don’tsitdown.Don’tcomein.Don’teatathome.Don’tlistentomusicoutside.Don’tdoyourhomeworkatschool.語法探究語法探究祈使句1.概述用于表達命令、請求、勸告、警告、禁止等的句子叫祈使句。祈使句最常用于表達命令，其主語是第二人稱you，且往往被省略，因此祈使句一般以動詞原形開頭。Goandwashyourhands.去洗洗你的手。（命令）Bequiet,please.請安靜。（請求）Practicetheguitareveryday.每天練習(xí)吉他。（建議）【妙指津】為了表達委婉的語氣，可在句首或句尾加上please。please在句尾時要用逗號與句子其他部分隔開。Don’ttalkinthelibrary,please.請不要在圖書館說話。語法探究【妙指津】表示禁止時，常用于標語、警示語的否定祈使句結(jié)構(gòu)為“No+動詞-ing形式.”或“No+可數(shù)名詞復(fù)數(shù)形式/不可數(shù)名詞.”Nosmoking.禁止吸煙。Nophotos.禁止拍照。類型句型結(jié)構(gòu)示例Do型肯定：動詞原形(+其他成分).Standup.起立。否定：Don’t+動詞原形(+其他成分).Don’tplaywithfire.不要玩火。Be型肯定：Be+表語(+其他成分).Becalm.冷靜。否定：Don’t+be+表語(+其他成分).Don’tbestupid.別犯傻。Let型肯定：Let+賓語+動詞原形(+其他成分).Let’sgoswimming.咱們?nèi)ビ斡景伞７穸ǎ篋on’tlet+賓語+動詞原形(+其他成分).Let+賓語+not+動詞原形(+其他成分).Don’tlethimgo.別讓他走。Lethimnotgo.別讓他走。2.祈使句的基本結(jié)構(gòu)語法探究情態(tài)動詞must與haveto1.must的用法意為“必須”，表示主觀的義務(wù)或必要，無人稱、數(shù)和時態(tài)的變化。以must開頭的一般疑問句，肯定回答一般用must，否定回答一般用needn’t或don’t/doesn’thaveto，意為“不必”，而mustn’t意為“禁止”，常用于否定句中。Imustgohomeontime.我必須按時回家。----Mustwecleantheclassroomnow?我們必須現(xiàn)在打掃教室嗎？----No,youneedn’t.Youcancleanitafterschool.不，你們不必。你們可以放學(xué)后打掃。意為“一定,”，表示肯定推測，用于肯定句中。ThegirlinredmustbeAlice.那個穿紅衣服的女孩一定是艾麗斯。Youmustn’tsmokehere.你不能在這里吸煙。語法探究情態(tài)動詞must與haveto1.haveto的用法haveto意為“必須；不得不”，后接動詞原形，表示客觀需要做的事情。Ihavetogetupearlyeveryday.我每天不得不早起。含有haveto或hasto的句子需要分別借助動詞do或does構(gòu)成疑問句或否定句。ThegirlinredmustbeAlice.那個穿紅衣服的女孩一定是艾麗斯。Doyouhavetoleavenow?你現(xiàn)在必須離開嗎？haveto有人稱、數(shù)和時態(tài)的變化，其第三人稱單數(shù)形式為hasto。Jennyhastodothedisheseveryday.珍妮每天不得不洗碗。Shedoesn’thavetogothere.她不用去那兒。LibraryRulesDon’ttalk.______________________________________________________Writetherulesfortheschoollibrary.Don’tlistentomusic.Don’teatordrink.Don’ttakephotos.3a【方法指導(dǎo)】：1.由圖示可知都是一些禁止類的祈使句。2.可知應(yīng)用“Don’t+動詞原形”句子。12341.Bequiet?(she/haveto/inthelibrary)Q:Doesshehavetobequietinthelibrary?A:Yes,shedoes.

3bUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.2.Eat?(he/haveto/inthedininghall)Q:________________________________?A:_____________3.Listentomusic?(we/can/inthehallways)Q:________________________________?A:_____________4.Wearahat?(we/can/intheclassroom)Q:_______________________________?A:____________Yes,hedoes.DoeshehavetoeatinthedininghallCanwelistentomusicinthehallwaysNo,wecan’t.CanwewearahatintheclassroomNo,wecan’t.3cMakeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!----Atmydreamschool,wedon’thavetocometoschooleveryday.…----Wecaneatinclass.…ReportAtmydreamschool,wedon’thaveto__________.Wecan__________________.Wecan__________________.Wedon’thaveto...1.Hehastoeatbreakfastquickly.(改為一般疑問句)_________________________________________2.Playvolleyballafterclass.(改為否定句)_________________________________________句型轉(zhuǎn)換Doeshehavetoeatbreakfastquickly?Don’tplayvolleyballafterclass.3.Wecanwearsportsshoesinclass.(改為一般疑問)

________________________________4.Don’tarrivelateforclass.(改為同義句)_______________________________5.Erichastodohishomeworkbeforesix.(對劃線部分提問)

_________________________________Canwewearsportsshoesinclass?Wemustbeontimeforclass.WhatdoesErichavetodobeforesix?Structures:①—Don’truninthehallways.②—Whataretherules?—W