Unit 2 How often do you exercise第二单元核心

Unit2Howoftendoyouexercise?,SectionB2a-2e,resultrzlt.结果；后果percentpsentadj.百分之.的onlinenlanadj.在线的adv.在线地televisiontelvnn.电视机；电视节目althoughlconj.虽然；尽管；然而；可是throughruprep.穿过；凭借；一直到bodybdin.身体mindmand.头脑；想法；意见；心思suchstadj.这样的；如此的togetherte(r)adv.共同；一起diedav.死；枯竭；消失writerrat(r)n.作者；作家,Ranktheseactivitiesaccordingtohowoftenyouthinkyourclassmatesdothem(1=mostoften,6=leastoften).,2a,Letsdoasurvey.,Whatdoyoudoinyourfreetime?Doingexercise,useoftheInternetorwatchingTV?Whatactivitiesdoyouthinkishealthyforthemindandthebody?,Reading,2b,Readthepassagequicklyandfindtheanswertothequestionsbelow.,Howmanykindsoffreetimeactivitiesarementionedinthepassage?_2.Whatisthebestwaytorelax?_,Three.,Thebestwaytorelaxisthroughexercise.,Readthepassagecarefullyandcompletethepiechartbelow.,_%everyday,Exercise,_%3or4timesaweek,UseoftheInternet,_%everyday,_%4-6timesaweek,_%1-3timesaweek,_%noexercise,10,20,15,20,45,90,_%4-6timesaweek,WatchTV,_%1-3timesaweek,_%everyday,85,13,2,2c,Readthearticleagainandanswerthequestions.,1.Howmanypercentofthestudentsdonotexerciseatall?_2.HowmanypercentofthestudentsusetheInterneteveryday?_,Ninetypercentstudents.,Twentypercentstudents.,3.HowoftendomoststudentswatchTV?_Whatdotheyusuallywatch?_4.Whatdoesthewriterthinkisthebestwaytorelax?_Why?_,MoststudentswatchTVeveryday.,Theyusuallywatchsports,gameshows.,Itshealthyforthemindandthebody.,Exercise.,5.DoyouthinkthestudentsinNo.5arehealthy?_Whyorwhynot?_,No,Idontthinkso.,BecausemoststudentsuseInternetorwatchTVontheirfreetime.Theydontlikeexercising.Itsunhealthy.,2d,Accordingtothearticleandthepiecharts,writesentenceswiththepercentagesusingalways,usuallyorsometimes.,1.90%：_2.85%:_3.45%:_,EightypercentofthestudentsalwayswatchTV.,NinetypercentofthestudentsalwaysusetheInternet.,Forty-fivepercentofthestudentsusuallyexercise.,4.10%:_5.13%:_6.2%:_,TenpercentofthestudentssometimesusetheInternet.,ThirteenpercentofthestudentsusuallywatchTV.,TwopercentofthestudentssometimeswatchTV.,Languagepoints,1.Wefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.percent名词，意为“百分之”e.g.Eightypercentofthestudentsinourclassexerciseeveryday.我们班里80%的学生每天都锻炼。,【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。,2.Andtwentypercentdonotexerciseatall!notatall意为“一点也不”，not应和be动词、助动词或情态连用。e.g.Thestoryisntinterestingatall.那个故事一点也没有趣。Theydidntenjoythevacationatall.他们根本不喜欢那次旅行。Theoldmancantusethecomputeratall.那位老人一点也不会用电脑。,3.Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.although连词，“尽管，虽然；即使”e.g.Wewentfishingalthoughitwascold.尽管天气很冷，但是我们还是去钓鱼了。,注意：although引导的从句不能与but连用。e.g.尽管他离家很早，但是他还是迟到了。Althoughhelefthomeearly,buthewaslate.()Althoughhelefthomeearly,hewaslate.(),中考链接Mycousinknowsalotaboutgeography,_heisonlyfouryearsold.A.becauseB.soC.although,C,4.thebestwaytorelaxisthroughexercise.through介词，课文中意为“以，凭借”e.g.Hefoundthejobthroughanadvertisementinthenewspaper.他通过报纸上的一个广告找到这份工作。,拓展through还有“穿过”之意。表示“从内部穿过”。e.g.Theywentthroughtheforestyesterday.昨天他们穿过了森林。,5.Exercisesuchasplayingsportsisfunsuchas意为“像这样”，表示列举。结构常为：名词+suchas+例子e.g.Shelikesanimassuchasrabbitsandbirds.她喜欢像兔子、小鸟这样的小动物。,注意：其后面不可列举出所有的事物。如：我了解四种语言，例如英语、汉语。Iknowfourlanguages,suchas,EnglishandChinese.()Iknowfourlanguages,suchas,English,French,JapaneseandChinese.(),6.Oldhabitsdiehard.旧习难改。这是英语中的一句谚语，表示习惯一旦养成，并非朝夕即可改变，多用来描述人们一时难以改变的固有观念及做法。e.g.Itstheageofnewtechnology,butmygrandpastillgoeseverywherewithhisoldradio.Oldhabitsdiehard,yousee.现在都已经是新技术时代了，可我爷爷仍然到哪儿都带着他的收音机。你瞧，老习惯可真难改呀。,7.Sostartexercisingbeforeitstoolate!itstoolate为时太晚；来不及了e.g.Nowyouknowyourewrong,butitstoolate.现在你知道你错了，但是已经太晚了。,itstoolate与before共同组成从句，表示“不要等到为时已晚；不要等到来不及的时候；趁着还来得及”。e.g.Youshouldworkharderbeforeitstoolatetocatchup.你应当更加用功，别等到为时过晚而赶不上了。（你现在用功还赶得上。）,2e,Chooseoneofthesefreetimeactivitiesorthinkofyourown.Then