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八年級上冊英語Unit2知識點與語法精講精練詞匯梳理詞匯梳理完成單詞梳理:名詞:1.家務勞動2.(國際)互聯(lián)網(wǎng)3.節(jié)目4.無用的東西5.咖啡6.健康7.結果;后果8.百分之……9.電視機10.頭腦;心智11.身體12.作者;作家13.牙科醫(yī)生14.雜志;期刊動詞:1.消失;死亡;滅亡代詞:1.沒有一個;毫無副詞:1.幾乎不;幾乎沒有2.在任何時候;從來;曾經(jīng)3.一次;曾經(jīng)4.兩次;兩倍5.大概;或許;可能6.在一起;共同7.然而;不過8.幾乎;差不多介詞:1.以;憑借;穿過連詞:1.雖然;盡管;即使形容詞:1.忙的;滿的;充滿的兼類詞:1.(n)擺動;秋千(v)使……擺動;搖擺2.(adv)最??;最少(adj/pron)最小的;最少的3.(adj/adv)在線(的);聯(lián)網(wǎng)(的)4.(adj/pron)這樣的;那樣的;類似的5.(prep/conj)(用以引出比較的第二部分)比6.(adv)較少;較?。╝dj/pron)較少的;更少的7.(n)得分;點(v)指;指向(二)詞匯變形小結:1.one(num.一)—(adv.一次)—(第一)2.two(num.二)—(adv.兩次)—(第二)3.swing(v.使……擺動)—(過去式)4.little(adj.少的)—(比較級:更少的)—(最高級:最少的)5.health(n.健康)—(adj.健康的)—(adv.健康地)—(反義詞:不健康的)—(反義詞:不健康地)6.die(v.死)—(n.死亡)—(adj.垂死的)—(adj.死的)7.write(v.寫)—(n.作者;作家)【練一練】用所給詞的適當形式填空Mostparentsdon’tthinkitis______________(health)forchildrentostayuptoolateatnight.LaoSheisagreat______________(write)andhe’sespeciallyfamousforhisplay,Teahouse.Ifpeopledon’texercise,theillnesscangointotheir______________(body)easily.Ittakes______________(little)timetogotherebyundergroundthanbybus.Jimgotten______________(point)inthebasketballmatch.Takethemedicine______________(two)aday,andyou’llfeelbetter.Jack______________(do)hishomeworkeveryday.Mr.Li______________(teach)Englishinourschoolfiveyearsago.At______________(little)tenstudentswerelateforschoolthismorning.Manyboyslikeplayingfootballbecausetheythinkit’s______________(relax).(三)短語攻關:在周末 上網(wǎng) 幾乎從不 多久一次 一周一次 一周兩次 一周四到六次 使用互聯(lián)網(wǎng)去看電影熬夜 至少 對……有好處 做運動 打網(wǎng)球 在某人的空閑時間 去看牙醫(yī) 搖擺舞做家務 垃圾食品例如 怎么會呢?……的答案多于少于知識點梳理知識點梳理1.helpwithhousework幫忙做家務【用法詳解】helpsbwithsth表示在某方面幫助某人(幫助某人做某事),with后常跟名詞或代詞作賓語?!就卣寡由臁恐攸c:=幫助某人做某事【翻譯句子】.她經(jīng)常幫她父母做家務。2.【易混辨析】sometimes,sometimes,sometime與sometimesometimes頻度副詞有時表示動作發(fā)生的不經(jīng)常性,多與一般現(xiàn)在時連用,它可位于句首、句中或句末,對它提問用howoften。sometimes名詞短語幾次;幾倍其中time是可數(shù)名詞,對它提問用howmanytimes。sometime副詞某個時候表示某個不確切或不具體的時間,常用于過去時或?qū)頃r,對它提問用when。sometime名詞短語一段時間表示“一段時間”,句中謂語動詞常為延續(xù)性動詞。對它提問用howlong。Eg.Ilikerice,butsometimesIthinknoodlesareverydelicious,too.我喜歡米飯,但有時覺得面條也挺好吃。Ihavereadthebooksometimes.It’seducational.我已經(jīng)把這本書讀了幾遍了,它很有教育意義。IwillgotoShanghaisometimenextweek.下周的某個時間我要去上海。I’llstayhereforsometime.我將在這兒待一段時間?!厩蓪W助記】sometimes,sometimes,sometime與sometime分開一段時間(sometime),相聚某個時候(sometime)。相連s是有時(sometimes),分開s是倍、次(sometimes)?!炯磳W即用】1.Tomoftengoestoschoolbybusbut____________hermotherdriveshertoschool.A.sometimes B.sometimes C.sometime D.sometime2.Ihaveeverbeento(去過)Shanghai____________,Ithinkit’sbeautiful.A.sometimeB.sometimesC.sometimesD.sometime3.hardlyever幾乎從不【用法詳解】hardly作副詞,本身表示否定含義,不能再與否定詞連用(注:hardly不是hard的副詞形式)【易混辨析】hardly與hard單詞詞性用法hardly意為“幾乎不”,表示否定含義,構成短語“hardlyever”hard意為“努力地”,構成短語:努力工作意為“困難的;堅硬的”,構成短語:困難的工作【即學即用】1.Tomstudies,sohefailstheexam.A.hardly;hardlyB.hard;hardlyC.hard;hardD.hardly;hard2.Mydaughterstudies.Shegoestosleepbefore11p.m.A.hard;hardB.hard;hardlyC.hardly;hardlyD.hardly;hard4.onceaweek一周一次【用法詳解】onceaweek是表示頻率的短語,常用來回答howoften的提問。其中once作副詞,意為“一次”。Eg.—Howoftendoyougoshopping?你多久去購物一次?【拓展延伸】英語中次數(shù)的表達法:一次once,兩次twice,三次或三次以上用“基數(shù)詞+times”Eg.三次十次還可意為“自由的;免費的”5.…nextweekisquitefullforme,Jack.……我下周相當忙,杰克。還可意為“自由的;免費的”【用法詳解】(1)full作形容詞,可意為“忙的”,相當于busy,其反義詞是“空閑的”。Eg.Herlifeistoofulltofindtimeforhobbies.她的生活太忙碌了,沒有業(yè)余愛好的時間。(2)full作形容詞,還可意為“滿的;充滿的”,其反義詞是empty“空的”,befullof意為“充滿”。Eg.Lifeisfulloftheunexpected.生活充滿了意料以外的事情。(3)full作形容詞,還可意為“吃飽了的”,其反義詞是hungry“饑餓的”。Eg.Thankyouforyourdeliciouscake,butIamreallyfull.謝謝你美味的蛋糕,但是我真的吃飽了?!緢D解助記】【即學即用】Lifeis________upsanddowns.Nevergiveup.A.filledof B.fullwith C.fullof D.fillwith6.Oh,Ihavetoplaytenniswithmyfriends.噢,我得跟我的朋友打網(wǎng)球?!居梅ㄔ斀狻浚?)haveto意為“不得不;必須”,后面必須跟動詞原形,且haveto有人稱、數(shù)和時態(tài)的變化。含有haveto的句子變否定句或疑問句時要借助助動詞do的適當形式。Eg.Shehastolookafterherlittlebrother.她不得不照顧她的弟弟?!狣oIhavetodothedishesnow?我現(xiàn)在必須洗碗嗎?—Yes,youdo.是的,你現(xiàn)在必須洗。(2)playtennis打網(wǎng)球(play+棋類/球類名詞)重點Eg.打籃球踢足球下國際象棋play+the+樂器類名詞重點Eg.彈鋼琴彈吉他拉小提琴【即學即用】Lilypracticesplayingpianoafterschooleveryday.A.aB.anC./D.the7.Igotothemoviesmaybeonceamonth.我可能一個月去看一次電影。【用法詳解】maybe作副詞,意為“也許;大概;可能”【易混辨析】maybe與maybemaybe副詞“大概;也許;可能”,位于句首作狀語Maybesheisadoctor.=Shemaybeadoctor.她可能是一名醫(yī)生。maybemay是情態(tài)動詞“可能是”,maybe為“情態(tài)動詞+動詞原形”,位于句中作謂語【即學即用】1.________heisill.Sohe________athomenow.A.Maybe;maybeB.Maybe;maybeC.Maybe;mayD.May;maybe2.—Whosebagisit?—________itisLily's,becauseshesatonthesofajustnow.A.MayB.MaybeC.Maybe D.Wouldbe8.Shesaysit’sgoodformyhealth.她說那對我的健康有好處?!居梅ㄔ斀狻縝egoodfor意為“對……有好處”,后接名詞、代詞或動詞ing形式,其反義短語為bebadfor“對……有害”【拓展延伸】其他常見的由“begood+介詞”構成的短語:begoodat后跟名詞、代詞或動詞ing形式作賓語。相當于dowellinbegoodto后面一般接人,相當于befriendlytobegoodwith后接sb.或sth.e.g.Heisgoodattellingjokes.他擅長講笑話。e.g.Ourheadteacherisgoodtoallofus.我們的校長對我們都很好。e.g.He’sverygoodwithchildren.他和孩子們相處得好?!炯磳W即用】1.Infact,sugarandsaltarenotgoodbabies,oryou.A.with C.to 9.Wefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.我們發(fā)現(xiàn)只有15%的學生每天鍛煉?!居梅ㄔ斀狻縫ercent作名詞,意為“百分之……”,單復數(shù)同形,如:onepercent百分之一thirtypercent百分之三十【拓展延伸】“基數(shù)詞+percent+ofthe+名詞”意為“百分之……的……”,作主語時,謂語動詞的單復數(shù)取決于of后面名詞的單復數(shù)?!炯磳W即用】1.Twentypercentofthestudents(agree)withyou.百分之二十的學生贊同你。2.Thirtypercentofthetime(pass).百分之三十的時間過去了3.Almostfiftypercentofthestudentsinourclass(be)bornin2006.4.Aboutthestudentstookpartinthecamp.A.40percentB.40percentsC.40percentofD.40percentsof10.Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.盡管很多學生喜歡看體育節(jié)目,但是游戲類節(jié)目卻是最受歡迎的。【用法詳解】although作連詞,意為“雖然;盡管;即使”,相當于though,引導讓步狀語從句【特別提醒】重點:在英語中,表示“雖然……但是……”時,although與but不能同時使用Eg.Althoughthemachineisold,itstillrunswell.→Themachineisold,butitstillrunswell.盡管這臺機器舊了,但是依然運轉(zhuǎn)得很好?!炯磳W即用】1.________thewaterwascold,theyoungmanjumpedintoittosaveothers.A.AlthoughB.WhenC.IfD.Because2.________Bobisverytall,________hecan'tplaybasketball.A./;butB.Although;butC.Because;soD./;although3.____________themanisrich,____________heisnothappy.A.Although;butB.Although;/ C.But;althoughD.Although;so11.It’sgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.通過使用互聯(lián)網(wǎng)或看游戲類節(jié)目來放松很好,但是我們認為通過鍛煉是最好的放松方式。【用法詳解】(1)through作介詞,表示方式,意為“以;憑借”,還可意為“穿過;通過”,多指穿過門、窗、洞、森林、城市、隧道等。Eg.IknewthisnewsthroughtheInternet.我是從互聯(lián)網(wǎng)上知道這個消息的。TheRiverThamesflowsthroughLondon.泰晤士河流經(jīng)倫敦。(2)thebestwaytodosth做某事最好的方式Eg.ThebestwaytolearnEnglishistohaveagoodenvironment.學習英語最好的方法是有一個良好的環(huán)境?!疽谆毂嫖觥恐攸c:across,through,over與crossacross介詞從事物表面橫過Iwentacrosstheroad.我穿過馬路。through從事物內(nèi)部穿過Thethiefgotinthroughthewindow.小偷是從窗戶進來的。over從事物上方越過Sheclimbedoverthewall.她翻過墻去。cross動詞相當于goacrossHecrossedtheAtlantictwice.他兩次橫渡大西洋。【即學即用】1.Theoldmanisagoodswimmer,andevennowheoftenswims________TuojiangRiveraftersupper.A.overB.throughC.crossD.across2.Ileftmykeysintheroom.Iwanttogetinthewindow.Oh,it'stoodangerous.You'dbetterwaitforyourmothertoeback.A.acrossB.throughC.pastD.over12.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.像做體育運動這樣的鍛煉是很有趣的,當你和朋友、家人一起運動的時候,你們可以度過一段時光。【用法詳解】(1)suchas與forexample(例如)suchas通常用來例舉同類人或事物中的幾個例子,其前一般用逗號隔開forexample一般只例舉同類人或事物中的一個,用逗號與前后隔開,可置于句首、句中或句末Eg.Theboyisunhappybecausehehasnofriends.這個男孩不開心,因為他沒有朋友。Iliketheboybecauseofhiskindnature.我喜歡這個男孩,因為他天性善良。sbspend+時間/金錢+onsth某人花費多少時間/金錢在某物上sbspend+時間/金錢+sbspend+時間/金錢+onsth某人花費多少時間/金錢在某物上sbspend+時間/金錢+(in)doingsth某人花費多少時間/金錢做某事Eg.IspentamonthinShanghailastsummer.去年夏天我在上海待了一個月。Ispent150yuanonthispairofshoes.我花了150元買這雙鞋子。Weshouldspendmoretimeonourstudy.我們應該花費更多的時間在我們的學習上。Hespenthiswholelifeunderstandingtheuniverse.他花費了一生去了解宇宙?!炯磳W即用】1.Shedoeswellinmanysubjects,math,physicsandChinese. C.suchas D.forexample2.Mr.Smithspendstwohours(read)booksaday.13.Janeisa16yearoldhighschoolstudentintheUnitedStates.簡是一名16歲的美國中學生。【用法詳解】16yearold意為“十六歲的”→復合形容詞(是由兩個或兩個以上的單詞構成,詞與詞之間常加連字符“”),此處,16yearold是由“基數(shù)詞+名詞(單數(shù))+形容詞”構成的復合形容詞,常用在名詞前作定語,而16yearsold是名詞短語,常用作表語。Eg.Ihavea16yearoldsister.我有一個16歲的姐姐?!鶰ysisteris16yearsold.我的姐姐16歲了?!炯磳W即用】1.WuDajing,aChineseskater,setanewworldrecordattheShortTrackWorldCuplastyear.A.25yearsoldB.25yearoldC.25yearold D.25yearsold課堂小測一、單項選擇1.Mymothertoldmenottospendtoomuchtimeputergames.

A.playing B.toplayC.play D.played2.Lilyisonlyfiveyearsold,shecanswimverywell.A.Although;butB.Because;soC.Although;/D.So;/3.—Excuseme.Canyoutellmethewaytothepostoffice?—Sorry,Iamnewhere.youcanaskthepolicemanoverthere.Heknow.A.May;maybe B.May;may C.Maybe;maybe D.Maybe;may4.AmericanpeopleandBritishpeoplespeakthesamelanguage,theirculturesarequitedifferent.5.TheQiangxiRiver,abeautifulriver,runs________thecityofTaixingandtherearesomebeautifulbridges________theriver.A.across;through B.through;over C.through;through D.over;across6.Sixty________ofthehousework________donebyrobots.A.percent;are B.percent;is C.percents;are D.percents;is7.It'sagoodway________Englishby________toEnglishsongs.A.tolearn;tolisten B.learning;listeningC.tolearn;listening D.learning;tolisten8.Leowasso__________thatherushedtothekitchen,hopingtofindsomethingtoeat.9.﹣CanyoucatchwhatIsaid?﹣Sorry,Ican__________understanditbecauseyouspeakveryquickly.10.—Howmanytimeshaveyoureadthisnovel?—________. C.Threetime 11.Colais_______,andit’snotgoodforyour________.A.healthy;health B.unhealthy;healthy C.unhealthy;health D.health;health12.—WhatisTominterestedin?—Heisinterestedinsports,______basketball,tennisandpingpong.A.suchasB.atleastC.becauseofD.forexample13.—CanyougoswimmingwithmenextSunday?—Sorry,nextweekisforme.A.freeB.goodC.enoughD.full14.—Lindacan’tplaysocceratall.—Soccerisherfavoritesport.A.That’stoobad. B.eon! C.Howe? D.That’sright.15.Janestayuplatebecauseshedidn’tfinishherhomework.A.hadto B.can C.shouldD.mustto二、用所給詞的適當形式填空1.Heusually__________(stay)athomeonweekends.2.Fifteen(percent)ofthevisitorsarefromforeigncountries.3.Don'tworry,Mom.Iamoldenoughtolookafter(my).4.Brushyourteethatleast(two)aday,inthemorningandbeforebedtime.5.Itisgoodtolookforinformationby(use)theInternet.6.Thebestway(learn)Englishisthroughreadingloudly.7.Thegirlisn't(health)becauseshedoesn'tliketoexercise.8.Iplayfootballat(little)onceaweek.9.Eatingtoomuchjunkfoodisbadforstudents'(body).10.Howmany__________(time)doyouseeyourgrandparentsamonth?三、漢譯英:單詞/短語/句子1.他做運動至少一周兩次。Heplayssports____________________twiceaweek.。Iexercise____________________aweek.3.多吃蔬菜和水果對你的健康有益。It_____________________________yourhealthtoeatmorevegetablesandfruit.4.他幾乎不看電視。He____________________watchesTV.5.我懂四種語言,比如日語和英語。Iknowfourlanguages,____________________JapaneseandEnglish.6.吃太多垃圾食品對我們是不健康的。It’sunhealthyforustoeattoomuch____________________.7.我的妹妹會跳搖擺舞。Mysistercan____________________.8.盡管彈鋼琴很難,但是我不會放棄。.語法精講語法精講一、頻度副詞一、語法概述頻度副詞表示某一動作或狀態(tài)出現(xiàn)的頻率,即在一定時間內(nèi)某一動作或狀態(tài)重復出現(xiàn)的次數(shù),常用來回答howoften的提問。二、頻度副詞的種類1.不表示具體次數(shù)的頻度副詞(按頻率從高到低排列)always(100%)always(100%)usually(80%)often(60%)sometimes(40%)hardlyever/seldom(20%)never(0%)2.表示具體的頻率、次數(shù)時,通常用onceaweek(一周一次),twiceamonth(一月兩次),threetimesayear(一年三次)等?!咀⒁狻縪nceortwice一兩次twoorthreetimes兩三次threeorfourtimes三四次【即學即用】1.—Doyouoftengotothegym?—No,________.Idon’tlikesportsatall.2.Idon’tthinkfastfoodisgoodforourhealth,soI______gotoMac Donald.3.Mr.LiuwatchesTV.HethinkswatchingTVisawaste(浪費)oftime.A.often B.seldom C.always D.usually4.Bobdislikescoffee,sohealmostdrinksit.A.often B.always C.never D.ever三、頻度副詞的位置頻度副詞一般放在實義動詞前,be動詞、助動詞、情態(tài)動詞之后(實前be情助后),有時為了強調(diào),頻度副詞也可位于句首。?I’malwayshappytoseeher.我見到她總是很開心。?Shedoesn’talwaysgotoschoolbybus.她并不總是乘公共汽車去上學。?Icanneverforgetit.我永遠不會忘記這件事。?Usuallywehavelunchatschool.我們通常在學校吃午飯。四、對頻度副詞的提問重點對頻度副詞進行提問常用疑問詞組,表示“多久一次”?!炯磳W即用】1.Millie,doyoutakethecourseinDIY?EverySaturdayafternoon.A.howlong B.howfar C.howmuch D.howoften二、由how構成的特殊疑問詞組短語含義用法答語howfar提問距離It’s+5meters/10minutes’walk等表距離的詞語howlong提問時間for/about+時間段提問物體長度10km等表示長度的詞語howsoon提問時間in+時間段howoften提問頻率once,twice,always等表示頻率的詞語howold提問年齡12yearsold等表示年齡的詞語howmany對可數(shù)名詞的數(shù)量進行提問100等具體的基數(shù)詞或several等修飾可數(shù)名詞的詞語howmuch對不可數(shù)名詞的數(shù)量進行提問alotof,3glasses(of)等用于表達不可數(shù)名詞的量的詞語提問價格5dollars,2yuanakilo等表示價格的詞語語法小測一、單項選擇1.—Mike,doyouhaveahealthexamination?—Onceayear.A.howlong B.howmany C.howmuch D.howoften2.—Howoftendoyougotothecinema?—.Ionlywatchmoviesathome.Always B.Usually C.Sometimes D.Never3.Everyyearthousandsoftouriststhemountainareatorelaxthemselves.A.visited B.werevisitingC.visit D.havevisited4.We'llhavetosaygoodbye,mydearfriends!ButIwillforgetthedayswespenttogether.A.always B.often C.never D.usually5.—_________doyouhavedinnerwithyourfamilyatrestaurants?—Hardlyever.A.Howoften B.Howlong C.Howmany D.Howmuch6.—Doesyourbrotherplaysoccer?—No.He_________playsitbecauseheislazyenough.7._________monkeysarethereinthezoo?A.Howoften B.Howlong C.Howmuch D.Howmany8.—_________isitfromyourschooltothebusstop?—It’sabout5minutes’walk.A.Howoften B.Howfar C.Howlong D.Hows

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