《八年级上册Unit2 第四课时（SectionB2a-2e）》课件

SectionB2a-2eUnit2Howoftendoyouexercise?八年级上册RJ初中英语1.Newwords:

result,percent,online,television,although,through,mind,such,together,die2.Expression:suchasLearninggoalsWhatactivitiesdoyouoftendoafterschool?gocampinginthecountryplaycomputergamesusetheInternetwatchTVdoexerciseorplaysportsgotothemovies去野营playsports=dosports

做运动DiscussionWarmingup

watchTV

gotothemovies

playcomputergames

exerciseorplaysports

usetheInternet

gocampinginthecountry2aRanktheseactivitiesaccordingtohowoftenyouthink

yourclassmatesdothem(1=mostoften,6=leastoften).Shareyouranswers.Makeadialogueortellastoryaccordingtothecontentsofthepicture.ReadthefollowingNumbersquickly.201545639013852bReadthearticleandcompletethepiecharts.15202045109013285

ExerciseUsetheInternet

WatchTVatleast3orfourtimesaweek1.Whatpercentofthestudentsdonotexerciseatall?2.WhatpercentofthestudentsusetheInterneteveryday?3.HowoftendomoststudentswatchTV?Whatdotheyusuallywatch?2cReadthearticleagainandanswerthequestions.20%.90%.MoststudentswatchTVeveryday.Theyusuallywatchgameshows.4.Whatdoesthewriterthinkisthebestwaytorelax?Why?5.DoyouthinkthestudentsatNo.5arehealthy?Whyorwhynot?Thewriterthinksexerciseisthebestwaytorelax.Becauseitishealthyforthemindandthebody,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.No,Idon'tthinkso.BecausethestudentswatchTVtoomuchandsomestudentsdonotexerciseatall.WhatDoNo.5HighSchoolStudentsDoinTheirFreeTime?Lastmonthweaskedourstudentsabouttheirfreetimeactivities.Ourquestionswereaboutexercise,useoftheInternetandwatchingTV.Herearetheresults.Wefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.Forty-fivepercentexercisefourtosixtimesaweek.Twentypercentexerciseonlyonetothreetimesaweek.Andtwentypercentdonotexerciseatall!要想快速获知统计结果，应先跳读“结果”部分。SurveyreportThemeResult倒装句Weallknowthatmanystudentsoftengoonline,butweweresurprisedthatninetypercentofthemusetheInterneteveryday.Theothertenpercentuseitatleastthreeorfourtimesaweek.Moststudentsuseitforfunandnotforhomework.Theanswerstoourquestionsaboutwatchingtelevisionwerealsointeresting.OnlytwopercentofthestudentswatchTVonetothreetimesaweek.ThirteenpercentwatchTVfourtosixtimesaweek.Andeighty-fivepercentwatchTVeveryday!Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.Result······的答案ItisgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.Itishealthyforthemindandthebody.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.Andremember,“Oldhabitsdiehard.”Sostartexercisingbeforeit'stoolate!Conclusion旧习难改引出问题(Para.1)调查结果(Paras.2-4)Lastmonthweaskedourstudentsabouttheirfreetimeactivities.Exercise15%—everyday45%—fourtosixtimesaweek20%—onetothreetimesaweek20%—neverStructureUsetheInternet90%—everyday10%—atleastthreeorfourtimesaweekMoststudentsuseitforfunandnotforhomework.WatchTV2%—onetothreetimesaweek13%—fourtosixtimesaweek85%—everydayGameshowsarethemostpopular.得出结论(Para.5)Thebestwaytorelaxisthroughexercise.Itishealthyforthemindandthebody.1.Wefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.(教材P132b)(1)percent作名词，意为“百分之······”，单复数同形，如：onepercent百分之一，thirtypercent百分之三十。(2)“基数词+percent+of+the+名词”结构作主语时，谓语动词的单复数由该结构中的名词来决定。Twentypercentofthestudents

agreewithyou.Thirtypercentofthetime

passes.Languagepoints1.90%:_________________________________________2.85%:_________________________________________3.45%:_________________________________________4.10%:________________________________________5.13%:________________________________________6.2%:_________________________________________2dAccordingtothearticleandthepiecharts,write

sentenceswiththepercentagesusingalways,usuallyor

sometimes.NinetypercentofthestudentsalwaysusetheInternet.Eighty-fivepercentofthestudentsalwayswatchTV.Forty-fivepercentofthestudentsusuallyexercise.TenpercentofthestudentsusuallyusetheInternet.ThirteenpercentofthestudentsusuallywatchTV.TwopercentofthestudentssometimeswatchTV.2.Andtwentypercentdonotexerciseatall!(教材P132b)(1)not...atall表示强烈的否定，意为“根本不；一点儿也不”，atall通常位于句尾。Idon'tknowheratall.Hedidn’tdothehomeworkatall.Languagepoints—Thankyouforyourkindness. —Notatall.—WouldyoumindifIsmoke? —Notatall.

(2)notatall有“不用谢，别客气；没关系，一点也不介意”之意。3.Weallknowthatmanystudentsoftengoonline.(教材P132b)(1)online在此作副词，意为“在线；联网”。Itisfasterifyouapplyonline.(2)online还可作形容词，意为“在线的；联网的”。Weplantobuildanonlinedatabase.Onlineshoppingisbothcheapandconvenient,somanypeoplelikeshoppingonline.4.Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.(教材P132b)(1)although作连词，相当于though，意为“

虽然；尽管；即使”，引导让步状语从句。Althoughthegirlisonlysixyearsold,sheknowsmorethan300ancientChinesepoems.(2)在英语中，表示“虽然······但是······”时，although/though不能和but同时使用。Althoughthemachineisold,itstillrunswell.

=Themachineisold,butitstillrunswell.5.ItisgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.(教材P132b)by在此处表示方式，作“通过”讲，后接名词、代词或动词-ing。Shemadethetoybyhand.Hemakesalivingbypainting.、Ilearntitbymyself.by乘······靠近；在······旁边不迟于；在······之前由······所作Ioftengotoschoolbybike.Tomsitsbythewindow.Momtoldmetocomebackby10:00.ThenovelbyMoYanisinteresting.6.ItisgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.(教材P132b)(1)through在此处作介词，表示方式，意为“以；凭借”。IknewthisnewsthroughtheInternet.(2)through作介词，还可意为“穿过；贯穿”，多指穿过门、窗、洞、森林、城市、隧道等。TheRiverThamesflowsthroughLondon.across介词throughovercross动词【易混辨析】across,through,

over和cross的区别从事物表面横过从事物内部穿过从事物上方越过相当于goacrossIwentacrosstheroad.Thethiefgotinthehousethroughthewindow.Sheclimbedoverthewall.Thebridgecrossovertheriver.7.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.(教材P132b)

【易混辨析】suchas和forexample的区别

suchasforexample意为“例如；像······这样”，通常用来列举同类人或事物中的几个例子。其前一般用逗号隔开，一般不宜与andsoon连用。意为“例如”，通常用来列举某一论点或情况，一般只列举同类人或事物中的一个，在句中作插入语。用逗号与前后隔开，可置于句首、句中或句末。Shedoeswellinmanysubjects,suchasmath,physicsandchemistry.Trafficrulesshouldbeobeyed.Forexample,neverlistentomusicwhileridingabike.8.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.(教材P132b)spend在此作及物动词，意为“度过”。此外，spend还可表示“花费（时间、金钱）”，此时常用于以下结构：sb.spend(s)timeonsth./(in)doingsth.某人花费时间在某物上/做某事sb.spend(s)moneyonsth./ondoingsth.某人花费金钱在某物上/做某事spendOnweekends,mybrotherandIoftenspendtimeonthebeach.Ispent150yuanonthispairofshoes.StephenHawkingspenthiswholelifestudytheuniverse.9.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.(教材P132b)together作动词，意为“在一起；共同”。Wegrewuptogether.【拓展】togetherwith表示“和······一起”，连接两个主语时，谓语动词的数与前一个主语保持一致。Mr.GreentogetherwithhischildrengoestotheparkeverySunday.与Mr.Green这一主语保持一致10.Oldhabitsdiehard.(教材P132b)Thefamoussingerdiedattheageofthirty-two.Theflowerhasbeendeadformorethantendays.die常用作不及物动词，意为“消失；灭亡；死亡”其后不能直接跟宾语，且die是短暂性动词，不能与表示一段时间的状语连用。如果表示状态，与一段时间连用，要用bedead。deathn.死亡【拓展】diev.死亡deadadj.

死的dyingadj.

垂死的ThedeathofmypetMimimademeverysad.Mypetdiedtwoweeksago.Themanhasbeendeadfortwoyears.Thelittlegirlcriedwhenshesawherdyingcat.playcomputergamesreadbooksgoshoppingdrawpicturesplaysports2eChooseoneofthesefreetimeactivitiesorthinkofyour

own.Thenaskyourclassmateshowoftentheydothis

activityandmakeapiechart.Showthepiechartto

yourclass.Howoftendoyou...?Namesofclassmates1-3timesaweek4-6timesaweekeverydayactivities...percentplayingcomputergamesusingtheinternetwatchingTVlisteningtomusicplayingsportsIthinkinourgroup,_____percentlike...DoasurveyInourgroup,______studentslikeplayingcomputergames.______studentslikeusingtheInternet.______studentslikewatchingTV.______studentslikelisteningtomusic.______studentslikeplayingsports.Showyourreport1.Onlysix______oftenstudentshere______fromChinaandtheyareveryhard-working.A.percent;areB.hundred;isC.percent;isD.hundreds;are一、单项选择2.(天水中考)He

mostofhistime

English.A.spends;studying

B.costs;studied

C.takes;tostudy

D.pays;studiesAAExercises

3.

(南京中考)WestillknowlittleabouttheMoon

menhavelandedonit.A.if

B.sinceC.althoughD.because4.—Canyoutellmethe______ofyoursurvey?—Yes.Fiftypercentofthestudentsgotoschoolbybike.A.result

B.answer

C.way

D.habitCA二、根据汉语意思完成句子1.大约有90%的学生在周末每天上网，太让我们惊讶了。

Wearesurprisedthat______________ofthestudents____________everydayatweekend.2.通过在网上玩游戏放松不错，但我认为最好的放松方式是锻炼。It'sgoodtorelax______________gamesontheinternet,butIthinkthebestwaytorelaxis_______exercise.ninetypercentgoonlinebyplayingthrough3.我喜欢体育运动，比如篮球和游泳。Ilikeplayingsports,____________basketballandswimming.4.汤姆，这儿有一些花草树林。Tom，

someflowersandtrees.suchashereareKeywordsresult,percent,online,television,although,through,mind,such,together,dieExpressionsnot...atall,goonline,theanswerto...,suchas,Oldhabitsdiehard.Summary

按要求完成句子，每空一词1.

Li

Lei

is

so

friendly

a

boy

that

everyone

likes

him.(同义句转换)Li

Lei

is

friendly

boy

everyone

likes

him.2.

He

was

very

tired.

He

couldn’t

go

any

longer.(合并为一句)He

was

tired

he

couldn’t

go

any

longer.such

a

that

so

that

3.

The

news

was

very

exciting

and

everyone

shouted

with

joy.(同义句转换)It

was

exciting

news

everyone

shouted

with

joy.such

that

一、用may

be和maybe填空1.

they

are

in

your

room.2.

They

in

your

room.Maybe

may

be

二、按要求完成句子，每空一词3.

Mayb