Unit3单元重点语句解析及训练课件（人教版）七年级英语下册

Unit

3

Keep

Fit重点语句解析及练习1.Howoftendoyoudosportorexercise?【解析】"Howoften"用于询问某件事发生的**频率**，相当于中文的“多久一次”。

疑问句一般结构：Howoften+助动词/be动词/情态动词+主语+动词原形+其他？

例如：Howoftendoyouexercise?

回答：用频度副词always,usually,sometimes

，rarely,never...或时间短语onceaweek,everyday，twiceaweek,everymonth,everyotherday等。【howoften,howlong,Howmanytimes和howsoon区别】：howlong多长时间用for或since引导时间状语回答howsoon“还要多长时间”用于将来时，用“in+一段时间”回答howoften“多久一次”提问动作发生的频率,

Howmanytimes询问具体次数,回答用once,twice...例如:1.-Howlonghavetheybeenhere?--Tendays.2.--Howsoonwillhecomeback?--Intwodays.3.--Howoftendoyouvisityourparents?--Theretimesaweek.4.--Howmanytimesdoyougofishinginnamonth?--Theretimesexercise为不可数名词，译为“锻炼”；短语搭配：takeexercise锻炼身体Doexercise做运动例如:Weneedtotakeexercisetokeepfit.exercise也可为可数名词，译为“体操、练习题”，其复数形式为exercises。搭配短语：domorningexercises做早操例如:Weoftendomorningexerciseatschool.【练习】1.Howoftendoyouwatchmovies?______.A.FortwohoursB.TwiceaweekC.Athome2.--______doyouhavepianolessonsinaweek?--Threetimesaweek.A.HowlongB.HowoftenC.HowsoonD.Howfar3.--HowcanIstayinshape?--Youshoulddomore______.Don’talwayssitatthedeskbusydoingyour_______.A.exercise;exerciseB.exercises;exercisesC.exercise;exercisesD.exercises;exercise4.--What’syourfavourite_____?--Football.A.seasonB.subjectC.animalD.Sport答案：1.B2.B3.C4.D2.Iplayitthreetimesaweek.【解析】短语“threetimesaweek”表示频率，即在一定时间内做某事的次数；就其提问时常用howoften。例如:--Howoftendoyouhaveaholiday?--Onceayear.【知识关联】英语“次数”表达为：“一次”用once；“两次”用twice；“三次以上”用“数词+times”的结构。例如:fivetimes,Howmanytimes等。【练习】1.--Howoftendoyougotothelibrary?--_______.A.FivetimesaweekB.FivetimeaweekC.FivetimesinaweekD.Fivetimeinaweek(A)翻译成英语：他每周去三次健身房。答案：1.AHegoestothegymthreetimesaweek.3.Hardlyever.几乎不。【解析】Hardly为副词，译为“几乎不”；主要表示否定或极少的含义；在句中常位于动词之前，修饰动词。例如:Hecanhardlyfailtheexamifhestudieshard.Thechildhardlyateanythingforlunch.短语搭配：hardlyever几乎从不Hardlyany几乎没有【知识关联】Hard为形容词，译为“困难的；坚硬的；严厉的”例如:Hewassohardonmelastnight.（严厉的）hard也可为副词，译为“努力地、艰难地”例如:Iworkhardatschool.【练习】1.Howisshe?--Oh,I__seeherbecauseshelivesinAmerica.A.HardlyB.oftenC.almostD.always2.Myfriendstudies______.He______goestosleepbefore11p.m.A.hard;hardB.hardly;hardlyC.hardly;hardD.hard;hardly答案：1.A2.D4.Itlooksjustlikemine!【解析】此处look为系动词，译为“看起来”，后面需加形容词；短语搭配：looklike...“看起来像...”例如:Theboylooksverystrong.Helookslikehisfather.【知识关联】Look还可为动词，译为“看”；look接宾语时需接at，即“lookat...”；Eg:Lookatourroom.look也可单独使用，用在现在进行时中；例如:Look!Thegirlissinginganddanceoverthere.1.Thegirl______sad.What’swrongwithher?A.smellsB.looksC.tastesD.feels答案：B5.Theairisclean,andIcanhearbirdssinging.【解析】air在该句中为名词，译为“空气”；短语搭配：byair坐飞机Intheair在传播中、流行Upintheair悬而未决.例如:Hewillgotherebyair.There’ssweetintheair.Theirstravelplansarestillupintheair.air也可为动词，译为“晾、通风”；短语搭配：airtheroom给房间通风hear在此处为动词，译为“听、听见”。短语搭配：hearof...听说...Hearfromsb.收到某人来信Hearsb.dosth.听见某人做某事（全过程、结果）Hearsb.doingsth.听见某人正在做某事（动作的进行状态）例如:Myauntwon’tevenhearofit.Heheardfromhisfriendlastweek.Iheardhersayit.Wehearhersinginginthenextroom.【hear和listento区别】hear为“听见”，强调听的结果；Listento为“听”，强调听的动作。例如:Canyouhearme?Sheislisteningtomusicnow.【练习】1.The______intheroomisbad.A.airB.weatherC.climateD.onair(A)2.Thenewswillbe_____theairat6:00.A.inB.atC.ByD.on3.Canyouhearhim_______inthenextroom?A.readB.toreadC.readingD.toreadin答案：1.A2.D3.C

6.Ijogthreetimesaweek,butusuallyexerciseathomeinsteadwhenitrains.【解析】Jog为动词，译为“慢跑”；jog也可为名词，译为“慢跑”。短语搭配：gojogging去慢跑例如:Helikesgoingjogging.他喜欢慢跑。【instead和insteadof区别】insteadadv.反而/作为代替/相反

例如：Hedidn'tanswerme,heaskedmeaquestion

instead.Theydidn’tmeether,theymethercousininstead.Insteadof+n./doingsth.而不是…..例如：HeplaysgamesinsteadofdoinghomeworkafterschoolHedranksomecoffeeinsteadoftea.【练习】1.Theystayedathome______goingtotheconcert.A.insteadB.ButC.andD.insteadof答案：D7.It'shardatthestartwhenI’mstillsleepy.【解析】Start在此处为名词，译为“开始、开端”；start也可作动词，译为“开始”。短语短语：atthestart开始、起初Starttodo/doingsth.开始做某事例如:Atthestart,wewereathome.（start为名词）Therunnerslinedupatthestart.（start为名词）Westarttohavethesecondclassat9:00（start为动词）Sleepy为形容词，为“困的”，在句中作定语或表语。例如:Wealllookedsleepyafterstayingupallnight.ITisasleepyvillage.【sleepy、asleep、sleeping区别】sleepy用来形容人或动物在缺乏睡眠或休息时表示出来的样子；asleep用来形容入睡的状态，通常用作表语；sleeping用来强调正进行的动作，可作定语或伴随状语。例如:Thechildrenhavebeenasleep.Thelittleboyissleepingnow.【练习】1.Lileifell__inclassbecausehestayeduptoolatelastnight.A.sleepB.asleepC.sleepyD.sleeping2.Whois______inthenextroom?A.sleepyB.sleepC.asleepD.sleeping3.Shestarted______Englishattheageof6.A.learnedB.learnC.tolearningD.learning答案：1.B2.A3.C8.Myskateboardisreallycool,andsoaretheirs.【解析】So+be/助动词/情态动词+主语

…也是，主语指不同的人例如:

Ilikeapples,sodoesMary.--Shecanplaythepiano.--SocanI.结构“so+陈述语序”，即“so+主语+助动词/be动词/情态动词”，译为“...的确如此；主语指相同的人。例如:--Shealwaysstudieshard.--Soshedoes.【知识关联】结构“neither/nor+倒装语序”，译为“.…..也不”。前句必须为否定句。例如:--Heisn’tfromUSA.--NeitheramI.【练习】1.

--Maryhasanicewatch.--_____.A.SohassheB.SodoesJackhasC.SosheD.Sohedoes答案：B9.We

encourage

oneanotherto

dotricks,Sometricksarediffcult,but

once

you

succeed,youfeelgreat.Encourage为动词，译为“鼓励”。短语搭配：encouragesb.todosth.鼓励某人做某事例如：Myfatheroftenencouragesmetobelieveinmyself.once

用作副词时，表示“一次”，“曾经”，或“一旦”等含义。以下是一些常见的用法：（1）表示次数，意为“一次”:-IhaveonlybeentoBeijingonce（2）表示过去的某个时间点，意为“曾经”:-Once,therewasakingwhoruledtheland.（3）用做连词在条件句中，意为“一旦”：Onceyoumastertheskill,itwillbe

easy.succeed（v.）做动词，表示“成功”，过去式是succeeded.短语搭配

：succeedindoingsth

成功地做了某事例如：Ourplansucceeded.Hesucceededinpassingtheexam.【知识关联】success（n.）做名词，表示“成功”，不可数；做名词，表示“成功的人或事”，可数。例如：Confidenceisthekeytosuccess.Thepartywasabigsuccess.successful

(adj)，表“成功的”例如：Heisasuccessfulscientist.Successfully(adv)做副词，表“成功地”，修饰动词例如:Heworkedouttheproblemsuccessfuly.【练习】1.Weencourageallstudents___attheirownpace.A.workB.workingC.oworkingD.toworkt2.Wefinallysucceeded______theEnglishtest.A.inpassingB.inpassC.topassingD.topass3.His______asapopulardancerwasshort.A.succeedB.successfullyC.successfulD.success答案：1.D2.A3.D10.Ilikeskateboardingbecauseitkeepsmefit.【解析】fit在此处为形容词，译为“适合的、健康的”等意；例如:Eatingabalanceddietisimportantforstayingfit.fit也可为动词，译为“适合、安装”等意；例如:ThisT-shirtdoesn’tfithim.Theplumberfittedanewshowerhead.短语搭配：keepfit=stayfit=keephealthy=stayhealthy保持健康例如:Ishouldeatmorevegetablesandfruittokeepfit.【练习】

Thistrousesaretoolong,they___me.A.aren’tmatchB.aren’tfitforC.don’tfitD.dosn’tfit答案：C12.

Itcanshowmyprogress.【解析】show(v.)显示/表明/演出(n.)短语搭配：showsb.sth.=showsth.tosb.给某人看某物。例如:Pleaseshowmethatphoto.=Pleaseshowthatphototome.Progress为不可数名词，译为“前进、进步”；progress也可为动词，译为“进步、发展”。短语搭配：make(great)progress取得(很大)进展Progressin...在某方面取得进步例如:Sciencehelpsthepeopletomakeprogress.Thiscountryhasprogressedineducatios.【练习】

Withthehelpofmyteacher,Ihavemade______progress.A.alotB.manyC.greatD.any(A)答案：C13.We

workas

ateam,andwe

win

or

lose

asa

team.【解析】workas+职业

担任..的工作workasateam

团队合作win(won,won)“赢得”后接game/match/prize/war等，表示赢得游戏、比赛、奖项或战争lose(lost,lost)“输，输掉”。win与beat的反义词。losetosb.输给某人丢失/失去loseone'sway

迷路beat(beat,beaten)意为“打败”，后接表示入或团队的名词；意为“敲打”，指连续击打。【练习】1.____themedal

赢得奖牌2.We_____.我们获胜了。3.We____them.我们打败了他们4.Therain__againstthewindows.雨敲打着窗户。答案：1.win2.won3.beat4.beats14.

Swimmingisgoodformebecauseitkeepsmehealthy.【解析】healthy为形容词，译为“健康的”；其名词形式为health，译为“健康”，反义词为unhealthy。短语搭配：Keephealthy保持健康beingood/badhealth身体（不）好例如:Weareisingoodhealth.&Wearehealthy.1.Fruitsare_______food.A.unhealthyB.healthC.healthyD.healthily.答案：C15.Ithinkeveryoneshouldtryitl【解析】1.作动词（Verb）含义是“尝试”或“试图”，具体用法如下：try+todosth

表示“努力做某事”（强调为实现目标付出努力）。

例如：

Itrytofinishhomeworkearlier.try+doingsth表示“尝试做某事”（强调试验某种方法或手段，看是否有效）。

例如：

I

trycallinghim,buthedoesn'tanswer.try+名词/代词

直接接名词或代词，表示“尝试某事物”。