牛津英语9A unit4 grammar2

Grammar(2)Languagefunctions&focusUse‘while’and‘as’totalkaboutwhenthingshappenUsecomparativeandsuperlativeadverbsWhile&AsWhileMilliewaswatchingTV,Eddiewassleeping.延续性动词延续性动词AsMilliesatdownonthesofa,Andycameintotheroom.瞬间性动词瞬间性动词WhileAs/When延续性动词延续性动词瞬间性动词Conclusion:while,as这两个连词都可引导时间状语从句，但用法有所不同。1)当某事正在进行的时候，又发生了另一件事。While,as都可用来引导表示“背景”的时间状语从句。As/WhileIwaswalkingdownthestreetInoticedapolicecar.2)当两个长动作同时进行的时候,常用的是while。WhileMotherwascookinglunch,Iwasdoingmyhomework.3)当两个动作都表示发展变化的情况时，最常用的是as。例如：Aschildrengetolder,theybecomemoreandmoreinterestedinthingsaroundthem.4)当两个短动作同时发生时，或表示“一边…一边…”时，最常用as。例如：Justashecaughtthefly,hegavealoudcry.Shelookedbehindfromtimetotimeasshewenthome.while&as________MilliewaswatchingTV,Eddiewassleeping.________MilliewaswatchingTV,Andyopenedthedoor.________Milliewaswalkingpastthebookshop,shesuddenlythoughtofbuyingaTVguide.________Milliesatdownonthesofa,Andycameintotheroom.WhileWhile/AsWhile/AsAsTranslatethefollowingsentences:1.我父亲在看电视时睡着了。Myfatherfellasleepwhile/ashewasreadingthenewspaper.2.妈妈做饭的时候，我在做作业。WhileMumwascookingdinner,Iwasdoingmyhomework.3.我到家的时候，他正在吃晚饭。When/AsIgothome,hewashavingsupper.4.她沿着那条路走着，心里想着她父亲。Asshewalkedalongtheroad,shethoughtaboutherfather.Trytousethecomparatives&superlativestotalkaboutthesportsmeeting.sportsitemshighjump,longjump,throwing,100metres,relayrace,1500meters词尾变化原级比较级最高级单音节词在词尾加-er(比较级)或-est(最高级)以字母e接尾的词加r或sthardhighfast多音节词和多数双音节词在其前面加more和mostslowly,carefullyquickly不规则变化well,much,littlebadly,farharderhigherfasterhardesthighestfastestbetter,more,less,worse,fartherbest,mostleast,worstfarthestmoreslowlymorecarefullymorequicklymostslowlymostcarefullymostquicklyearly-earlier-earliestoften—moreoften---mostoften副词的比较级和最高级的常用结构.as+副词原级+as意为“与…一样”,表示同级比较1.她歌唱得像天使一样甜.2.我能一小时跑30英里.3.他在测试中没有Mary做的好.Shesingsassweetlyasanangel.Icanrunasfastas30milesanhour.Hedoesn’tdosowellinthetestasMary.副词比较级+than意为“比….更”,表示两者之间的比较1.本比他懒爸爸起床早.2.他们现在比以前过的更幸福.副词比较级+副词比较级,意为“越来越……”1.雨下得越来越大.2.你学习越来越努力了.Bengetsupearlierthanhislazyfather.Theynowlivemorehappilythanbefore.Itrainedmoreandmoreheavily.Youstudyharderandharder.The+副词的比较级,the+副词的比较级,意为“越…就越…”我看到她越多,我越不喜欢她.他打字打得越快,他出的错就越多.The+副词的最高级+比较范围(三者或三者以上),意为“最……”亨利是所有运动员中跳的最高的.他在班上学习最用功.ThemoreIseeher,thelessIlikeher.Thefasterhetypes,themoremistakeshewillmake.Henryjumpshighestofalltheplayers.Heworkshardestinhisclass.NameGoodstoryGoodactorsRegularviewersCCTVStation用所给词的正确形式填空：1.Shesangeven_________(bad)thanusual.2.Motheraskedhersontowalkabit_________(fast).3.OfallthenovelsIlikethisone__________(good).4.Whodoyouthinkcanjump___________(high)inyourclass?5.Pleasesendusthetechnicaldataas___________(quick)aspossible.6.Heshouldspeak_________(little)andlisten_________(much).7.Pleasetellthemnottoplayso________(noisy).worsefasterbesthighestquicklylessmorenoisilyBetweenfrombeforeafteruntilwhileas1.____Isawthekangaroo,Ineverknewananimalcanjumpsohigh.2.I’llplaybadmintonwithyou______Ifinishedmyhomework.3.Wemustfinishit_______8:00p.m.and11:00p.m.Comeon!Wedon’thavemuchtime.4.Youshouldknockonthedoor______youcomein.5.CanyouwatchTV_____8:00a.m.to9:30a.m.?Untilafterbetweenbeforefrombetweenfrombeforeafteruntilwhileas6.___thetigercame,alltheanimalsranaway.7.Howcanyouknowtheending_____youreadthebook?8.CanIstay____theweekend?9.________Iwasdoingmyhomework,Iheardastrangenoisedownstairs.10.Sandywasreadingthenewspaper,____MilliewaswatchingTV.AsbeforeuntilWhile/Aswhile