Unit 2 重點(diǎn)解析與練習(xí) 人教版英語八年級(jí)上冊(cè)

Unit2Howoftendoyouexercise？短語gotothemovies=gotothecinema看電影onweekends=atweekends(泛指）在周末看電影ontheweekend=attheweekend在這個(gè)周末，在本周末usetheInternet使用互聯(lián)網(wǎng)havelessons上課helpwithhousework幫忙做家務(wù)hardlyever幾乎從不swingdance搖擺舞watchTV看電視stayup(late)熬夜（到很晚）goshopping去購物playsports=dosports做運(yùn)動(dòng)twiceaweek每周兩次atleast至少；不少于；起碼onceaweek每周一次gotobedearly早睡junkfood垃圾食品gotothedentist去看牙醫(yī)junkfood垃圾食品everynight每晚（作狀語）16-year-old16歲的howoften多久一次alotof許多，大量gocamping去野營(yíng)freetimeactivities課余活動(dòng)morethan=over多于teethcleaning洗牙not...atall一點(diǎn)也不fastfood快餐goonline=surfontheInternet上網(wǎng)theanswerto...······的答案lessthan少于afew幾個(gè)，一些onetothreetimesaweek一周一至三次suchas例如；像······這樣mostof大部分oldhabitsdiehard舊習(xí)難改havetodo不得不做句型1.Howmanyhoursdoyousleepeverynight?你每晚睡多少個(gè)小時(shí)？2.Ihavepianolessonstwiceaweek.我每周上兩次鋼琴課。3.Mymotherwantsmetodrinkmilk.Shesaysthatit’sgoodformyhealth.我母親要我喝牛奶。她說對(duì)我健康有好處。Lastmonthweaskedourstudentsabouttheirfreetimeactivities.上個(gè)月我們問了學(xué)生有關(guān)空閑時(shí)間的活動(dòng)。Wefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.我們發(fā)現(xiàn)僅僅百分之十五的學(xué)生每天鍛煉。Twentypercentsofourstudentsdonotexerciseatall.20%的學(xué)生根本不鍛煉。Weallknowthatmanystudentsoftengoonline,weweresurprisedthatninetypercentofthemusetheInterneteveryday.我們都知道很多學(xué)生經(jīng)常上網(wǎng)，我們很吃驚他們中有百分之九十的人每天上網(wǎng)。MoststudentsusetheInternetforfunandnotforhomework.大多數(shù)學(xué)生上網(wǎng)是為了娛樂，而不是為了做作業(yè)。9.Theanswerstoourquestionsaboutwatchingtelevisionwerealsointeresting.對(duì)我們提出的有關(guān)看電視的問題的回答也頗有意思。10.Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.雖然很多學(xué)生喜歡看體育節(jié)目，但游戲節(jié)目依然是最受歡迎的。11.ItisgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.通過上網(wǎng)或看游戲節(jié)目來放松很好，但是我們認(rèn)為最好的放松方法還是通過鍛煉。三、重難點(diǎn)講解1.onweekends意為“在周末”，泛指每個(gè)周末，ontheweekend則表示“在這個(gè)周末”，特指某個(gè)周末；在英式英語中，在周末也可以用attheweekend或者atweekends。2.helpwithhomeworkhelp表示“幫助”時(shí)，常用的句型為：helpsb.withsth.幫助某人某事；helpsb.(to)dosth.幫助某人做某事。sometimessometimes是頻度副詞，意為“有時(shí)”，相當(dāng)于attimes。辨析sometimes,sometimes,sometime與sometimesometimes有時(shí)sometimes幾次、幾倍sometime某時(shí)sometime一段時(shí)間hardlyeverhardly作副詞，表示“幾乎不”；hard用作副詞表示“努力地、猛烈地”，作形容詞表示“硬的、困難的”。howoften意為“多久一次”用來提問頻率，常用表示頻率的副詞或者短語來回答，如twiceaweek,sometimes,everyday,always等?！就卣埂勘嫖鰄owlong,howsoon和howoftenhowlong“多長(zhǎng)時(shí)間”，提問for和since引出的時(shí)間狀語howsoon“多久”提問“in+一段時(shí)間”howoften“多久一次”，提問動(dòng)作發(fā)生的頻率howfar“多遠(yuǎn)”，提問距離的遠(yuǎn)近Internet作名詞，表示“互聯(lián)網(wǎng)、因特網(wǎng)”，常用的短語為：ontheInternet“在互聯(lián)網(wǎng)上”；surftheInternet“上網(wǎng)”。Free作形容詞表示“空閑的、有空的”，befree相當(dāng)于havetime。free作形容詞，還可以表示“免費(fèi)的、自由的”，befreetodosth.“自由地做某事”。Howabout相當(dāng)于whatabout意為“怎么樣”，用來征求對(duì)方意見或者詢問情況，后接名詞或者動(dòng)名詞。haveto表示“不得不、必須”，強(qiáng)調(diào)客觀需求；must側(cè)重主觀上自己認(rèn)為有必要做某事。Maybe作副詞，表示“可能、也許”，常常放在句首，可以與maybe相互轉(zhuǎn)換。stayup意為“熬夜”，表示“為……熬夜”時(shí)，用“stayupforsth.”。atleast表示“至少”，反義詞為atmost“最多”。begoodfor意為“對(duì)……有益”，反義詞是bebadfor“對(duì)……有害”。health是不可數(shù)名詞，意為“健康”，ingoodhealth表示“很健康”，形容詞為healthy，副詞是healthily。asksb.aboutsth.意為“詢問某人某事”。here和there置于句首，謂語動(dòng)詞是be動(dòng)詞或者come,go等不及物動(dòng)詞時(shí)，主語為名詞時(shí)，用倒裝結(jié)構(gòu)，即主謂調(diào)換位置，若主語是代詞時(shí)，主謂不倒裝。Percent表示“百分之……”，常用“基數(shù)詞+percent+of+名詞”，“percentof+名詞”作主語時(shí)，謂語動(dòng)詞的單復(fù)數(shù)取決于名詞的單復(fù)數(shù)。not...atall意為“一點(diǎn)兒也不、根本不”；notatall表示“沒關(guān)系、不用謝”。Online用作副詞，表示“在線、聯(lián)網(wǎng)”，也可以用作形容詞，意為“在線的、聯(lián)網(wǎng)的”。20.Howcome?意為“為什么呢、怎么回事”，用于詢問某事為什么會(huì)發(fā)生，可以單獨(dú)使用也可以后接陳述句。21.Answer后常跟介詞to，表示“……的答案”。Although用作連詞，表示“雖然、即使”，相當(dāng)于though，用來引導(dǎo)讓步狀語從句。在英語中，although/though和but不能同時(shí)出現(xiàn)。23.by可以用來表示方式，意為“通過”，后接名詞或者動(dòng)名詞短語。24.way表示“方法”時(shí)，后常接動(dòng)詞不定式或者ofdoing作定語。25.suchas一般用于列舉同一類人或物中的一個(gè)例子，但必須數(shù)量少于前面所提及的總數(shù)，只能放在所列舉的名詞前；forexample一般用于列舉一個(gè)例子，后面經(jīng)常加上一個(gè)句子，位置很靈活，可位于句首、句中，于被列舉的事例之間用逗號(hào)隔開。sb.spend+時(shí)間/金錢+onsth.“在某事上花費(fèi)多長(zhǎng)時(shí)間或者多少錢”；sb.spend+時(shí)間+(in)doingsth.“花費(fèi)多長(zhǎng)時(shí)間做某事”【拓展】辨析spend,pay,take和costspend主語是人spend...onsth./spend...(in)doingsth.pay主語是人payforsth./pay+金錢.forsth.take主語是itIttakessb.+時(shí)間+todosth.cost主語是物sth.costssb.+金錢16-year-old意為“16歲的”其中的名詞用單數(shù)形式，在句中作定語，16yearsold表示“16歲”，在句中作表語。28.however作副詞，表示“但是、然而”，常位于句首，后面常常跟有逗號(hào)隔開。29.also,too,aswell與either都可以表示“也”，但是用法不同。also放在句中行為動(dòng)詞前，be動(dòng)詞、助動(dòng)詞和情態(tài)動(dòng)詞之后。too用于肯定句中，放在句尾，前面用逗號(hào)隔開。aswell用于肯定句中，放在句尾，前面不用逗號(hào)隔開。either用于否定句句末。30.beafraidof意為“害怕、不敢”，后接名詞、代詞或者動(dòng)名詞。beafraidtodosth.意為“膽小不敢做某事”。beafraidthat...意為“擔(dān)心、害怕”。I’mafraid表示“恐怕”。Nonenone表示“沒有一個(gè)（人或物）”，是all“所有的人或物”的反義詞，后常接介詞of；另外，none強(qiáng)調(diào)某一類人或物數(shù)量的多少，常用來回答howmany/much的提問；nobody(noone)/nothing強(qiáng)調(diào)個(gè)體，常用來回答what或者who的提問。課后練習(xí)單選1．—Iusuallygetupatsixo'clockinthemorning.Whataboutyou?—I________getupsoearly.Iusuallygetupat7:00.A．sometimes B．often C．a(chǎn)lways D．never2．---________timeshaveyouvisitedGansuScienceMuseum?---Onlyonce.A．HowoftenB．HowmanyC．howlongD．Howsoon3．Idon’tthinkfastfoodisgoodforourhealth,soI______gotoMacDonald.A．seldom B．a(chǎn)lways C．usually D．often4．—Howoftendoyouchatwithyourfriendsonline?—________.I'mbusywithmystudy.Onlyonceamonth B．Foramonth C．Almosteveryday D．Maybeintwoweeks5．---_______doyoubrushyourteeth?---Twiceormoreaday.A．Howsoon B．Howfar C．Howlong D．Howoften6．He______latetowatchafootballmatchlastnight.A．gotup B．stayedup C．putup D．cutup7．Heusually______withhisfriendsafterschool.A．playsthetennis B．playtennis C．playstennis D．playthetennis8．—______doyougohomeamonth?—Once.A．Howoften B．Howmanytimes C．Howlong D．Howfar9．—Whendoyougoshopping?—Iusuallygoshopping______Sundaymornings.A．on B．in C．a(chǎn)t D．for10．Theanswer__________thequestionisveryinteresting.A．of B．for C．to D．with11.They________eattoomuchsalt,sotheyarehealthy.A．a(chǎn)lwaysB．usuallyC．oftenD．hardlyever12.-Youlooksotired,Sue.-I__________sleptlastnight.Ifeelterriblenow.A．a(chǎn)lmostB．hardlyC．usuallyD．a(chǎn)lways13.—Doesyoursisterwatchscarymovies?—She________watchesthem.Infact,sheisafraidofthem.A．a(chǎn)lwaysB．neverC．usuallyD．often14.I________gotothetheater,becauseIdon’tlikeoperasatall.A．a(chǎn)lwaysB．sometimesC．never15.─__________hoursdoyousleepeveryday？─Ninehours.A．HowmanyB．HowmuchC．HowoftenD．Howlong二、完型填空Inmanycountries,somefamiliesaretoofarfromschoolsforkidstogoto.Soonlineschoolsare1forthem.Studentscanhaveschoolwherever2whenevertheywant.Also,manyonlineschoolscanletstudentsworkat3ownpace.4goodthingaboutonlineschoolsisthattheycangivedifferentclasses.ThereareEnglish,math,science,andhistoryclasses,whilesomeotheronlineschoolsalsogiveclasses5spacescience,French,andzoology.Onlineschoolsalsohavedifferent6waysforkidstomakeuseof.Forexample,manyonlineschoolshavetheirwebsites,andonthesewebsitesstudentscanwatchvideos,listentogivenlessons,orchatwith7liketeachersorotherstudentsfreely.Someonlineschoolshavelive（實(shí)時(shí)的）classes.Intheseclasses,studentscancallandtalkwiththeteacher.It8thattheyaretalkingfacetoface,9theywillfeeltheteacherthesamefriendlyasinrealschool.Otheronlineschoolsevenhaveonlineclubsforkidstotalkabouttheirhobbies（愛好）.Computertechnology（技術(shù)）isamazing.Since2006,thousandsofonlineschoolshavecomeoutintheUS.Onlineschoolsaretherewithyou,butit’s10toyoutodecideifthiskindoflearningisrightforyou.1．A．only B．necessary C．impossible D．perfect2．A．but B．a(chǎn)nd C．or D．so3．A．their B．they C．them D．theirs4．A．Other B．Others C．Another D．Theother5．A．suchas B．forexample C．however D．a(chǎn)sfor6．A．study B．learned C．learning D．studied7．A．some B．someone C．something D．someone8．A．sounds B．seems C．looklike D．feels9．A．because B．though C．if D．unless10．A．own B．left C．down D．Up三、閱讀理解Weknowgoodhealthandhappinessareimportantinourlife.Herearesomewaystomakethemeasytoget.?Eatabalanceddiet(吃平衡的飲食).Eatalotoffruitandvegetables,somegrains(谷物)andalittlemeat.?Exercisetwoorthreetimesaweek.?Getenoughsleep.Itisbesttogetatleasteighthours’sleepaday.?Keepyourselfbusy.Thisisgoodbecauseitstopsyoufromhavingbadhabits.Tokeepyourselfbusy,youcanwalkaroundthehouse,spendtimewithyourpet,dosports,orhaveahobby.?Gooutandmakefriends.Spendtimeandhavefunwiththem.Talkwiththem,buttrynottotalkaboutanythingbad.Youshouldstaywiththepeoplewhoarehealthy.Howoftenshouldweexerciseifwewanttogethealthandhappiness?A.Everyday. B.Onceaweek.C.Twoorthreetimesaweek. D.Fivetimesaweek.Weusuallyneedatleast____________hours’sleepaday.A.five B.six C.