Unit5语法grammar过去进行时when和while-人教版英语八年级下册.pptx

haveapartydanceplaysoccerdosomereadingplaytennisboatonthesea—Whatishedoingnow?—Heisplayingtennis.—Whataretheydoing?—Theyareboatingonthesea.

现在进行时概念：1.表示现在（说话瞬间）正在进行或发生的动作。WearehavinganEnglishclassnow.2.表示当前一段时间内的活动或现阶段正在进行的动作。Imreadingastorybookthismonth.现在进行时构成：be(am,is,are)+动词ing(现在分词)时间状语:now;rightnow;Look;Listen;Its6oclock.等时间点时间段

现在进行时句型转换：肯定句:主语+be(am/is/are)+doing+其他。2.否定句：主语+be(am/is/are)+not+doing+其他。3.一般疑问句：be(am/is/are)+主语+doing+其他？肯定回答：Yes，主语+be(am/is/are).否定回答：No，主语+be(am/is/are)+not.4.特殊疑问句：特殊疑问词+一般疑问句的语序？

Heisplayingtennis.否定句：Heisnotplayingtennis.一般疑问句：Isheplayingtennis?肯定回答：Yes,heis.否定回答：No,heisn’t.特殊疑问句：Whatishedoing?

Theyareboatingonthesea.否定句：Theyarenotboatingonthesea.一般疑问句：Aretheyboatingonthesea?肯定回答：Yes,theyare.否定回答：No,theyarenot.特殊疑问句：Whataretheydoing?

Whatareyoudoingnow?Whatwereyoudoingatthistimeyesterday?Wearehavingaclassnow.Wewerehavingaclassatthistimeyesterday.过去进行时现在进行时

-----Whatwasshedoingat…yesterday?8:00a.m.9:00a.m.2:00p.m.-----Shewas…10:00p.m.eatingdrinkingsingingsleepingpairwork

1.基本概念109过去进行时表示在过去某一时刻或一段时间内正在进行的动作。这一特定的过去时间除有上下文暗示以外,一般用时间状语来表示。过去进行时Presentation时间点时间段

3.常用时间状语:atthattime;then;allnight;from8to10thismorning;atthistimeyesterday;atthatmoment(时刻)at7lastnight;at8yesterdaymorning;atthetimeof…或while/when引导的时间状语从句;上下文暗示2.构成was/were+动词-ing(doing)(主语为第一人称单数或第三人称单数时，用was，其余人称用were)助动词

4.句型结构：肯定句:主语+be(was/were)+doing+其他。否定句:主语+be(was/were)+not+doing+其他。一般疑问句:be(was/were)+主语+doing+其他？肯定回答：Yes,主语+be(was/were).否定回答：No,主语+be(was/were)+not.特殊疑问句:特殊疑问词+一般疑问句？wasnot=wasntwerenot=werent读音P110

句式(以work为例)肯定式I/He/She/Itwasworking.We/You/Theywereworking..否定式I/He/She/Itwasnotworking.We/You/Theywerenotworking.wasn’tweren’t

疑问式简略回答肯定否定WasIworking?Yes,youwere.No,youweren’t.Wereyouworking?Yes,