Module2PublicholidaysUnit3

1.while的用法引导时间状语从句，意为“当……时候”“在……期间”,多与进行时连用。Youmaygoswimming_____________________我吃午饭时间里你可以去游泳。时间状语从句GrammarwhileI’mhavinglunch.

引导时间状语从句：在/当……时Helookedaside____________________我对他说话的时候，他向旁边看。Imetmyteacher.当我正在街上走的时候，我碰到了我的老师。表示一个动作正在进行（过去进行时），另一个动作插入（过去式）2.when的用法whenIspoketohim.3.before的用法before用作连词，“在…之前”，用来表示时间或顺序。睡前先把灯熄掉。Turnthelightoffbeforeyousleep.whenIwaswalkinginthestreet.

4.after的用法在…之后(1).prep.考试结束后，一些学生看起来很高兴。Aftertesting,somestudentslookveryhappy.(2).conj.你走了以后，我们都很想你weallmissedyouafteryouleft.

5.assoonas的用法assoonas连接的时间状语从句中，指未发的动作时，规律是：主句一般将来时，从句用一般现在时(主将从现)如：他一回来我就把这个消息告诉他。Iwilltellhimthenewsassoonasheesback。指紧接着发生的两个短动作，主从句都用一般过去时。他一坐下就拿出了他的英语书。HetookouthisEnglishbooksassoonashesatdown.

6.since的用法since后接时间点或过去时的句子自从他们离开这里，我们就没见过他们。Wehaven’tseenthemsincetheylefthere.7.until的用法?until?用于肯定句中，直到……时(为止)我会一直等到你写信来。IwillwaituntilIhearfromyou.用于否定句中：?直到……才直到她回来我才开始看电视。?IdidnotwatchTVuntilshecameback.我五点后才有空。I’llnotbefreeuntil5o’clock.

1.________________ourfriendsarrived,weallwenttothesquare.2.________theywerewatchingTV,welistenedtomusicandsangtraditionalsongs.3.__________itwastwelveo’clock,weallshouted“HappyNewYear”.WhileAfter/AssoonasAssoonasafterassoonassinceuntilwhile4.Westayedthere_____shearrived.5.Hehasmadealotofprogress_______hestartedtolearnEnglishlastmonth.untilsinceActivity1

beforeuntilWhenwhileChristmasisahappyholiday.(1)______ites,peoplecelebrateitindifferentways.Tomanypeopleintheworld,thistimeofyearistheseasonforgivingandreceivingpresents.ChildrenthinkthatFatherChristmaswaits(2)______theyareasleepandthenesinandleavespresentsforthem.Theywouldlikehimtoe(3)_______t