人教版新目标八上Unit 2 SectionB 2a-2e.ppt

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1、Unit2Howoftendoyouexercise?黑河二中王冬梅SectionB2a-2eLet’sdoasurvey.watchTVgotothemoviesplaycomputergamesexerciseorplaysportsusetheInternetgocampinginthecountrySo,about...percentofthestudentsinourclassusually...2a15%45%20%90%fifteenpercentforty-fivepercenttwentypercentninetypercent基数词

2、+percent表示“百分之……”Howoftendoyou...?一次两次三次三十次oncetwicethreetimesthirtytimestime次，次数。基数词（≥3）+times表示“……次”Readthepassagecarefullyandcompletethepiechartbelow.______%everydayExercise______%3or4timesaweekUseoftheInternet______%everyday______%4-6timesaweek______%1-3timesaweek______%noex

3、ercise1020152045902b______%4-6timesaweekWatchTV______%1-3timesaweek______%everyday851322cReadthearticleagainandanswerthequestions.1.Whatpercentofthestudentsdonotexerciseatall?__________________________________2.WhatpercentofthestudentsusetheInterneteveryday?_____________________

4、_____________Ninetypercentofthestudents.Twentypercentofthestudents.3.HowoftendomoststudentswatchTV?_________________________________Whatdotheyusuallywatch?_________________________________4.Whatdoesthewriterthinkisthebestwaytorelax?_______________________________Why?____________

5、______________________MoststudentswatchTVeveryday.Theyusuallywatchsports,gameshowsarethemostpopular.Becauseit’shealthyforthemindandthebody.Throughexercise.5.DoyouthinkthestudentsinNo.5arehealthy?_________________________________Whyorwhynot?_______________________________________

6、____________________________________________________________No,Idon’tthinkso.BecausemoststudentsuseInternetorwatchTVontheirfreetime.Theydon’tlikeexercising.It’sunhealthy.【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。Twentypercentofthemeatisinthef

7、ridge.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.(√)2dAccordingtothearticleandthepiecharts,writesentenceswiththepercentagesusing,always,usuallyorsometimes.1.90%：___________________________________

8、_________________2.85%:________________________