课文呈现Isapoemlikeasong?Canitbeshort?Canitbelong?Yes,apoemislikeasong.Itcanbeshort.Itcanbelong.Writingapoemcanbefun.Shareyourpoemwitheveryone.Letswriteapoem.Letustry.Whatdoweseewhenwelookuphigh?Whitecloudsandaclearbluesky,Onelittlebirdthatsflyingby.LetsWriteaPoemFishanddish,catandbat,Wishandswish,matandhat,Sadandbad,catandflat,Thesewordsrhyme—howaboutthat?Writingapoemcanbefun.Shareyourpoemwitheveryone.单元语法沙龙过去进行时表示过去某一时刻或某一阶段正在进行的动作。过去进行时①过去进行时的构成句式构成示例肯定句的构成：主语+was/were+动词-ing+其他.Hewasrepairinghisbikeyesterdayafternoon.昨天下午他在修理自行车。Wewerehavingsupperwhenthephonerang.我们正在吃晚饭时，电话响了。句式构成示例否定句的构成：主语+was/were+not+动词-ing+其他.ThistimeyesterdayJackwasnotwatchingTV.昨天这个时候杰克没看电视。Theywerenotplayingbasketballwhenthebellrang.铃声响起时，他们没有打篮球。一般疑问句及其肯定回答和否定回答的构成：—Was/Were+主语+动词-ing+其他?—Yes,主语+was/were./No,主语+was/werenot.—Wereyoudoingyourhomeworkat7o’clocklastnight?昨晚七点你正在做家庭作业吗？—Yes,Iwas./No,Iwasn’t.是的，我在做。/不，我没在做。单元语法沙龙句式构成示例特殊疑问句的构成：(1)特殊疑问词+was/were+主语+动词-ing+其他？(2)特殊疑问词+was/were+动词-ing+其他？Whatwereyoudoingat7o’clocklastnight?昨晚7点钟你在干什么？Whowasdoinghomeworkat7o’clocklastnight?昨晚7点钟谁正在做家庭作业？单元语法沙龙单元语法沙龙考题在线1：[大连]Wedecidedtostayathomebecauseitwas__________heavily.(rain)raining【点拨】根据“Wedecidedtostayathome”及“was”可知，because引导的原因状语从句应用过去进行时，动词rain的现在分词为raining。单元语法沙龙②过去进行时的用法过去进行时表示在过去某一时刻或某一阶段正在进行或持续进行的动作，一般要与表示过去的时间状语连用，如atthistimeyesterday,atthattime,atyesterdayafternoon等。e.g.Iwasdoingmyhomeworkatthistimeyesterday.昨天的这个时候我正在做作业。单元语法沙龙Tomwasgettingupatsixo’clockeverydaythatweek.汤姆那一周里每天都是六点钟起床。Asshewasputtingdownthenewspaper,Grannyfellasleep.当她放下报纸时，奶奶睡着了。单元语法沙龙考题在线2：[成都]IamsorryIdidn’tansweryourphonebecauseI______thepianoatthattime.A.playedB.wasplaying