初中英语人教版八年级上册unit 2 section b (2b-2e).ppt

Unit2Howoftendoyouexercise?SectionB(2b2d),2b.Readthearticleandcompletethepiechart.,_%1-3timesaweek,_%4-6timesaweek,_%noexercise,_%everyday,_%3-4timesaweek,_%everyday,_%4-6timesaweek,_%everyday,_%1-3timesaweek,15,45,20,20,90,10,85,13,2,Exercise,UsetheInternet,WatchTV,2C.Readthearticleagainandanswerthequestion.,1.Whatpercentofthestudentsdonotexerciseatall?2.WhatpercentofthestudentsusetheInterneteveryday?3.HowoftendomoststudentswatchTV?Whatdotheyusuallywatch?4.Whatdoesthewriterthinkisthebestwaytorelax?Why?5.DoyouthinkthestudentsatNo.5arehealthy?Whyorwhynot?.,Twentypercentofthestudentsdonotexerciseatall.NinetypercentofthestudentsusetheInterneteveryday.MoststudentswatchTVEveryday.TheyusuallywatchGameshowsonTV.Thewriterthinksthebestwaytorelaxisthroughexercise.Itshealthyforthemindandthebody.No,Idontthinkso.Becauseonlyfifteenpercentofthestudentsexerciseeveryday,butNinetypercentofthestudentsusetheInterneteverydayandeighty-fivepercentofthestudentswatchTVeveryday?,2D.Accordingtothearticleandthepiecharts,writesentenceswiththepercentagesusingalways,usuallyorsometimes.,1.90%:_2.85%:_3.45%:_4.10%:_5.13%:_6.2%:_,NinetypercentofthestudentsalwaysusetheInternet.Eighty-fivepercentofthestudentsalwayswatchTV.Forty-fivepercentofthestudentsusuallyexercise.TenpercentofthestudentsoftenusetheInternet.ThirteenpercentofthestudentsusuallywatchTV.TwopercentofthestudentssometimeswatchTV.,重点词汇,;percent;意为“百分之）没有复数形式，与名词连用时后面需要of,其结构为“数次+percentof+名词”作主语时，谓语动词的数要与of后面的名词的数保持一致。Suchas:Eighty-fivepercentofthestudentsalwayswatchTV.*Fifteenpercentofthewaterispolluted.;Although:用作连词，意为“虽然，尽管，即使”，引导让步状语从句=though两者在大多数情况下可以通用。Although引导的从句，即可位于主句之前，也可在之后。位于主句之前可用逗号隔开Althoughthough与but不可用于同一个句子中。用Althoughthough就不能用but反之也然。Suchas:Althoughmyuncleisold,helooksverystrongandhealthy*Myuncleisold,buthelooksverystrongandhealthy.我的叔叔虽然老了，但他看上去很健壮。,重点短语,：Herearetheresults.意为“以下就是结果”。这是一个倒装句表强调。Here在此不是地点副词，be之后是名词be（isare)在前，若是代词则be（isare)在后。当表示“什么的结果”用theresult(s)ofSuchas：Hereheis!是他！Wearewaitingfortheresultofthematch.我们正在等比赛的结果。：Theanswerto意为“什么的答案”Suchas：Icouldntfindtheanswertothequestion.我找不到这个问题的答案。：ItisgoodtorelaxbyusingtheInternet.通过上网来放松是好的。句子结构类型为：It+be+adj.+todosth.意为“做某事是怎么样的”。It为形式主语，后面的动词不定式短语为真正的主语。目的是为了避免头重脚轻。,Sumup,频率副词与频率副词短语的使用（位置）：频率副词（always，usually，often，sometimes，hardlyever，never）在实意动词之前，be动词，助动词,情态动词之后。频率副词短语(onceaweek,twiceamonth,threeorfiveayear,onetothreeaweek)一般在句末：日常行为习惯常用“whathowoften”来提问。What+dodoes+主语+do+在某时？某人在某时做什么？Howoften+dodoes+主语+do某事？某人做某事多久一次？：percent;意为“百分之：Although:用作连词，意为“虽然，尽管，即使”：It+be+adj.+todosth.意为“做某事是怎么样的”。,作业：用下表中其中两个活动来询问Howoftendoyoudotheseactivities?来Makeapiechart.下节课展示。,playcomputergamesreadbooksgoshoppingdrawpicturesplaysports,Howoftendoyou.?Namesofstudents1-3timesaweek4-6timesaweekeveryday,A:Howoftendoyouplaycomputergames?B:Iplaycompu