八年级上U1词汇讲解

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1、Unit1Howoftendoyouexercise?1.howoften多久一次，表示频率的疑问词，用来引导特殊疑问句。2.exercisev.&n.n.a.[C]exercises（pl・）练习；练习题eg>Theteacheraskedustodoexercises6onPage20forhomework.Wouldyouliketodosomemoreexercisesafterfinishinghomeworkeveryevening?b.运动；锻妹[U]eg.Swimmingisverygoo

2、dexercise.c・操；某种运动[C]'eg.Doyoudomorningexerciseseveryday?eg.Youneedtodoeyeexercisesatleast（至少）onceaday.v.exercises,exercising,exercisedeg.Oldpeopleusuallyexerciseinthemorninginthesquaresorintheparks.eg.Howdoyoukeepyourselfhealthy?Doyouoftenexercise?Whendo

3、youusuallydoit?3・skateboardv.踩滑板，参加滑板运却skateboards^skateboarding,skateboardedgoskateboarding【译】我经常滑滑板。eg.Ioftenskateboard・n.eg.Tom,doiVtputyourskateboardinthemiddleofyourroom.Putitaway（把收起来放好），underyourbed.否有board的合成词：blackboard/keyboard/motherboard（mainb

4、oard）主机板4.hardly=almostnot;onlyjustadv.几乎不，几乎没有（襄示否定）几乎不。egIhardlyeverexercise.【译】他很少在午夜前就寝。eg.Hehardlyevergoestobedbeforemidnight.【区别】hardly与hardhardly为副词（adv・）

5、，做“简直不能”讲时，多和can连用；也可表示“几乎没有”，常和any连用，相当于almostnot；eg>WecanhardlybelievethatChinagot51goldmedals（金牌）inthisOlympicGames，becausealltheathletes（运动员）didtheirbestineveryevent,webroketherecords（打破记录）ofourown.eg.There^shardlyany（almostno）milkinthebottle.hardadj>

6、&adv.adj.困难的eg.Thafshardwork.adv<猛烈地eg.TVsraininghard.adv>努力地eg>WeshouldworkharderinGradeTwo.5・once,twice都是频度副词，表示频率的高低，wehaveonceaweek,whafsmeaning?一周一次，一年一次howtos町?（onceayear）and—月两次？（twiceamonth）好的，那么三次四次怎么说？英语中三次以上用奇数词加上times构成，如一天三次threetimesaday,一周五

7、次fivetimesaweek...这里的time是可数名词，表示次数的多少6.timen.[U]时间Whafsthetime?[C]次数onetime=once;twotimes=twiceeg>rvebeentoShanghaiforthreetimes.7.surfv.surfs,surfing,surfedsurftheInternet网上冲浪gosurfing去冲浪surfer—冲浪者surfboard滑水板，冲浪板★【译】Ifthewaves（V'M）arebigenough,we*llgos

8、urfing.如果浪够大的话，我们就去冲浪。【扩展阅读】Surfingisasurface（地表水）watersportinwhichtheparticipantiscarriedalongthefaceofabreakingwave,mostcommonlyusingasurfboard.Intowinsurfing（mostoften,butnotexclusively,associatedwithbigwavesurfi