第1讲时态重点句型1.It/Thisisthefirsttimethatsb.hasdone...这是某人第一次做某事It/Thiswasthefirsttimethatsb.haddone...这是某人第一次做某事Itisthefirsttimethathehasperformedonsuchabigstage.这是他第一次在如此大的舞台上表演。Itwasthethirdtimethathehadbeenoutofworkthatyear.这是他那一年第三次失业。2.Itis/hasbeen...sincesb.didsth.自从某人过去做某事以来已经……(since后接过去时)sb.hasdonesth.since/eversince/sincethenIhaveknownhimeversinceIwasachild.我自孩提时代起就已经认识他了。Mycomputerbrokedownandmyessayhasbeenleftunfinishedsince.我的电脑坏了,我的文章至今还没有写完。I’vebeenonthegoeversinceeighto’clockthismorning.我从早晨八点钟起就一直忙个不停。3.It/Thisisthebest(worst,mostinteresting等)thatsb.hasdonesth.ItisthemostinterestingbookthatIhaveeverread.这是我读过的最有趣的一本书。4.Itwon’tbelongbeforesb.doessth.不久之后某人将会……(before引导的时间状语从句中用一般现在时代替一般将来时)Itwon’tbelongbeforeweseeeachotheragain.我们不久之后就会见面了。5.Bythetimesb.doessth.,sb.willhavedone到……时为止时,某人将已经做了……(bythetime引导的时间状语从句中用一般现在时代替一般将来时)BythetimeIgraduatenextyear,Iwillhavelivedherefor5years.到明年毕业时,我就在这里待了五年了。Iwillhavesavedupto$5,000bythetimethenewtermbeginsinSeptember.到九月份新学期开始时,我就能省下5000美元了。6.“for+一段时间”常与现在完成时连用,但也可以和其他时态连用。Jackdoesn’tsmokenow,buthesmokedforalmosttwentyyears.杰克现在不抽烟了,但是他过去曾抽烟抽了将近20年。—Haveyouheardabouttherecentelection?—Sure,ithasbeentheonlythingonthenewsforthelastthreedays.——你听说最近的选举没有?——当然,这是最近三天唯一的新闻事件。—Guesswhat?ImetMarkattheparty.—Ifmymemoryservesmecorrectly,youtwohadn’tseeneachotherforalmosttenyears.——你猜怎么着?我在聚会上遇到了迈克。——如果我没记错的话,你们俩差不多10年没见面了。Heplayedfootballformanyyearswhenhewasyoung.年轻的时候,他踢了很多年足球。—Peter,wheredidyouguysgoforthesummervacation?—Wehadbeenbusywithourworkformonths,sowewenttothebeachtorelaxourselves.——彼得,你们暑假去哪里了?——我们几个月来一直忙于工作,所以我们就去了海滩放松一下。7.hardly/scarcely...when...,nosooner...than...句型结构中,主句用过去完成时,从句用一般过去时,意为“一……就……”。HardlyhadIgothomewhentherainpoureddown.我刚到家大雨就倾盆而下。8.bedoing...when...正在做……这时……beabouttodo...when...正要做……此时……hadjustdone...when...刚做了……这时……beonthepointofdoing...when...正要做……这时……Iwasthinkingaboutmynewplanwhenagoodideaoccurredtome.我正在考虑我的新计划,这时一个好主意浮现出来。Theywerejustabouttosetoutwhenitbegantorain.他们正要出发,这时下起雨来了。Ihadjustlaindownwhenthetelephonerang.我刚躺下,这时电话铃响了。Iwasonthepointofgivingupthesearchwhensomethingcaughtmyeyeinthebushes.我正要放弃搜索时突然注意到灌木丛中有什么东西。