人教版新目标八上Unit 2 SectionB 2a-2e.ppt

Unit2Howoftendoyouexercise?,黑河二中王冬梅,SectionB2a-2e,Letsdoasurvey.,watchTVgotothemoviesplaycomputergamesexerciseorplaysportsusetheInternetgocampinginthecountry,So,about.percentofthestudentsinourclassusually.,2a,15%45%20%90%,fifteenpercent,forty-fivepercent,twentypercent,ninetypercent,基数词+percent表示“百分之”,Howoftendoyou.?,一次两次三次三十次,once,twice,threetimes,thirtytimes,time次，次数。基数词（3）+times表示“次”,Readthepassagecarefullyandcompletethepiechartbelow.,_%everyday,Exercise,_%3or4timesaweek,UseoftheInternet,_%everyday,_%4-6timesaweek,_%1-3timesaweek,_%noexercise,10,20,15,20,45,90,2b,_%4-6timesaweek,WatchTV,_%1-3timesaweek,_%everyday,85,13,2,2c,Readthearticleagainandanswerthequestions.,1.Whatpercentofthestudentsdonotexerciseatall?_2.WhatpercentofthestudentsusetheInterneteveryday?_,Ninetypercentofthestudents.,Twentypercentofthestudents.,3.HowoftendomoststudentswatchTV?_Whatdotheyusuallywatch?_4.Whatdoesthewriterthinkisthebestwaytorelax?_Why?_,MoststudentswatchTVeveryday.,Theyusuallywatchsports,gameshowsarethemostpopular.,Becauseitshealthyforthemindandthebody.,Throughexercise.,5.DoyouthinkthestudentsinNo.5arehealthy?_Whyorwhynot?_,No,Idontthinkso.,BecausemoststudentsuseInternetorwatchTVontheirfreetime.Theydontlikeexercising.Itsunhealthy.,【注意】percent做主语时，谓语动词的数要根据其后面的名词来确定。e.g.Fiftypercentoftheapplesarebad.50%的苹果都坏了。Twentypercentofthemeatisinthefridge.20%的肉都在冰箱。,注意：although引导的从句不能与but连用。尽管他离家很早，但是他还是迟到了。Althoughhelefthomeearly,buthewaslate.()Althoughhelefthomeearly,hewaslate.(),2d,Accordingtothearticleandthepiecharts,writesentenceswiththepercentagesusing,always,usuallyorsometimes.,1.90%：_2.85%:_3.45%:_,Eighty-fivepercentofthestudentsalwayswatchTV.,NinetypercentofthestudentsalwaysusetheInternet.,Forty-fivepercentofthestudentsusuallyexercise.,4.10%:_5.13%:_6.2%:_,TenpercentofthestudentssometimesusetheInternet.,ThirteenpercentofthestudentssometimeswatchTV.,TwopercentofthestudentssometimeswatchTV.,2e,Chooseoneofthesefreetimeactivitiesorthinkofyourown.Thenaskyourclassmateshowoftentheydothisactivityandmakeapiechart.,1-3ti