初中英语人教版七年级下册unit 4 Section B 2a---2c .ppt

Unit4Donteatinclass.,本节课的主要内容,1.完成4单元单词的解析及教授。2.完成4单元的语法及知识点的讲解。3.听写三单元的笔记。,本节课的重难点,1.祈使句的用法。2.belatefor=arrivelatefor3.must的用法。4.inclass与intheclass5.辨析wear,puton,bein6.bring与take的区别。7.bequiet/keepquiet8.practice的用法。9.help的用法。10.onschoolnights,11.辨析toomany,toomuch与muchtoo12.relax的用法。13.strict的用法。14.remember的用法。15.follow的用法。16.keep的用法。17.learn的用法。,1.祈使句:定义：表示请求、命令、建议、警告等语气的句子。结构：肯定：Do型：以动词原形开头的。Be型：Be+名词/形容词。Let型：Letsb.dosth.(Letsb.notdosth.)eg:Standup.Closethedoor.Givemesomefood.Bequiet!,否定句：Do型和Be型在句首加Dont。eg:Dontforgetme.Dontbelateforschool.Let型否定式有两种：Dont+let+宾语+动词原形+其他Let+宾语+not+动词原形+其他eg:Dontlethimgo.=lethimnotgo.有些可用no开头，用来表示禁止性的祈使句。Nosmoking!禁止吸烟Nofishing!禁止垂钓,Beagoodstudent.Letmehelpyou.Donttalkinclass.Dontarrivelateforclass.Practice:不要在走廊里跑。不要在教室里吃东西。你必须在餐厅吃。不要在课堂上听音乐。我们可以在外面听音乐。不要打架。,2.arrivelatefor=belatefor“做某事迟到”Dontarrivelateforschool.=Dontbelateforschool.3.must是情态动词，后面加动词原形。当must用于否定句时，mustnt意味“千万不要，禁止”，而不表示“不必”。eg.Youmustntbelateforschool.以must开头的一般疑问句，做肯定回答还用must,做否定回答要用neednt或donthaveto,而不用mustnt.eg.MustIcleantheroom?No,youneednt./No,youdonthaveto.,4.ontime:准时intime：及时.eg:Wemustarrivethereontime.Atlast,wereachedthefactoryintime.5.inclass表示“在课上，上课时”intheclass表示“在这个班”类似的用法有：inhospital住院，inthehospital在医院attable吃饭，atthetable在桌子旁6.wearahat(P20)辨析wear,puton,bein,wear是及物动词，意为“穿，戴”，表示状态eg.HewearsablackT-shirt.puton意为“穿，穿上”，强调穿的动作eg.Itscoldoutside,putonyourcoat.bein+颜色/衣服，意为“穿着.颜色的衣服”eg.Sheisinred.7.bring与take的区别。bring“带来，拿来”，指从别处带到说话者所在的地方，bringsth.tosp.“把某物带到某地”eg.Pleasebringyourbooktome.take“带走，拿走”，指从说话者所在的地方带到远处去，takesth.tosp.“把某物带去某地”eg.Pleasetakeyourbooktoschool.,take.away把.带走8.Oh,wealsohavetobequietinthelibrary.(P20)bequiet=keepquiet保持安静9.practicetheguitar(P22)practicesth.练习某事/某物practicedoingsth.练习做某事eg.IoftenpracticemyEnglishinthemorning.Hepracticesplayingthepianoeveryday.10.dothedishes=washthedishes清洗餐具,11.helphismommakebreakfast(P22)helpsb.dosth.帮助某人做某事eg.Heoftenhelpsmecleantheroom.helpsb.withsth.帮助某人做某事eg.Ioftenhelphimwithhislessons.12.onschoolnights在上学期间的晚上(P22)13.Therearetoomanyrules.(P23)辨析toomany,toomuch与muchtoo,toomany+可复表示“太多.”，eg.Therearetoomanyflowersinthegarden.toomuch+不可数名词表示“太多.”eg.Ihavetoomuchhomeworkthisevening.muchtoo+adj./adv.表示“太.”eg.Thislittleboyismuchtoofat.14.Atschool，wehavemorerules(P23)more意为“更多的”，此处是many的比较级，修饰可数名词复数。同时也是much的比较级，可修饰不可数名词。eg.ShehasmorebooksthanI.Heboughtmoremilk.,15.Afterdinner,Icantrelaxeither.(P23)辨析relax,relaxing和relaxedrelax是动词，意为“使放松”eg.Playinggamesalwaysrelaxesme.relaxing是形容词，修饰物，意为“令人放松的”eg.Thisfilmisveryrelaxing.relaxed是形容词，修饰人，意为“感到轻松的”eg.Heisrelaxedafterlisteningtomusic.16.either表示“也”，用于否定句中eg.Idontlikeappleseither.,too表示“也”，用于肯定句和疑问句eg.Ilikeapplestoo.Doyoulikeapplestoo?17.Iknowhowyoufeel.(P23)本句中howyoufeel是宾语从句，做know的宾语。如果一个完整的句子在复合句中充当宾语，那么这个句子就叫宾语从句。注意宾语从句必须用陈述语序。eg.Hedoesntknowwherethepostofficeis.HetoldmewhatIshouldread.,18.Parentsandschoolsaresometimesstrict,butremember,theymakerulestohelpus.(P23)(1)strict是形容词，意为“严格的，严厉的”，bestrictwithsb.对某人要求严格bestrictinsth.对某事要求严格eg.Sheisastrictteacher.Myparentsarestrictwithme.Ourteacherisstrictinourhomework.,(2)remember表示“记住”，反义词forgetremembertodosth.记得要去做某事，说明事情还没有做。eg.Remembertotelephoneme.rememberdoingsth.记得做过某事，说明事情已经做过。eg.Irememberseeingherinthecity.中考链接Remember_thebooktothelibrarywhenyoufinish_it.A.toreturn;toreadB.returning;readingC.toreturn;readingD.returning;toread,19.Wehavetofollowthem.(P23)follow做及物动词，意为“遵循，遵守”followtherules遵守规则eg.Weshouldfollowthetrafficrules.followsb.todosth.跟随某人做某事eg.Ifollowedhimtothestation.20.Ihaveto/mustkeepmyhairshort.(P24)keep+宾语+宾语补足语(adj.)使.保持某种状态eg.Wemustkeeptheroomclean.,21.becauseIhaveto/mustlearntoplaythepiano.(P24)learntodosth.学会做某事eg.Wemustlearntodriveacar.learnfrom.向.学习eg.WeshouldlearnfromLeiFeng.learn.byoneself自学eg.HelearnsFrenchbyhimself.用于某些谚语中Itsnevertoooldtolearn.第三人称：宾格+self/selves其余人称：形物+self/selves(反身代词）,Homework,1.熟读4单元单词并记忆，家长听写一遍。批阅并督促改错。2.背诵4单元笔记。3.完成4单元练习册习题。,1.Howdoyougettoschool?Igettoschoolonfoot.Iwalktoschool.2.HowfarisitfromAtoB?About3kilometers.3.Howlongdoesittakeyoutoschool?4.Ittakes/tooksb.+时间todosth.Ittakesmeanhourtodomyhomework.5.hundred:有具体数字不加S，没有具体