英语人教版七年级下册时态复习.ppt

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1、三种时态大比拼时态大比拼在英语中，不同时间发生的动作或存在的状态要用不同的动词形式来表现。每种时态的概念、时间标志词、结构、句式变化、以及某些时态间的相互转换重点掌握时态现在进行时定义：现在正在进行的动作。现在进行时时间标志词：now,Look!Listen!Whereis…?Don’ttalk!It’s8:00a.m.一般现在时定义：经常或习惯性的动作或存在的状态。一般现在时时间标志词：always,usually,often,sometimes,seldom,never,everyday,every…,threetimesaday一般过去时定义：过去某个时间或时间段发生的

2、动作或存在的状态。一般过去时间标志词：lastnight,last…,twodaysago,…ago,in1999,in+过去的年份,justnow，yesterday,yesterdaymorning判断下列词属于哪种时态lastnightnoweverydayLook!yesterdayoftenListen!twoyearsagoalwaysin1897threetimesaweek一般现在时一般过去时现在进行时主语+am/is/are+V-ing(现在分词）主语+amnot/isn’t/aren’t+V-ing+……现在进行时结构：否定句：Am/Is/Are+主语+V

3、-ing+……？一般疑问句：一般现在时结构：否定句：一般疑问句：主语+V原形/V单三+…主+am/is/are+…主语+don’t/doesn’t+V原形+……主语+amnot/isn’t/aren’t+……Do/Does+主语+V原形+……？Am/Is/Are+主语+……？主语+V-ed+……(过去式）主语+was/were+……一般过去时结构：否定句：Did+主语+V原形+……？Was/Were+主语+……？一般疑问句：主语+didn’t+V原形+……主语+wasn’t/weren’t+……对比时态动词形式否定句一般问句现在进行时一般现在时一般过去时表格对比学习主语+am

4、/is/are+V-ing(现在分词）Am/Is/Are+主语+V-ing+……？主+V原形/V单三+…主+am/is/are+…主语+don’t/doesn’t+V原形+……主语+amnot/isn’t/aren’t+……主语+V-ed（过去式）主+was/were+…Do/Does+主语+V原形+……？Am/Is/Are+主语+……？主语+didn’t+V原形+…主语+wasn’t/weren’t+…Did+主+V原形+…？Was/Were+主+…？主语+amnot/isn’t/aren’t+V-ing+……have-look-begin-use-shop-get-dan

5、ce-study-现在分词第三人称单数过去式study-finish-have-go-do-play-watch-give-need-stop-hope-play-try-plan-visit-like-havinglookingbeginningusingshoppinggettingdancingstudyingstudiesfinisheshasgoesdoesplayswatchesgivesneededstoppedhopedplayedtriedplannedvisitedliked词形转换Heisateacher.2.KangkangcomesfromChina

6、.3.Iusuallytakethebustowork.4.Theyarehavingasportsmeeting.5.Janeplayedtheguitarlastnight.先（一般疑问句）再（否定句）Isheateacher?Heisn’tateacher.DoesKangkangcomefromChina?Kangkangdoesn’tcomefromChina.Doyouusuallytakethebustowork?Idon’tusuallytakethebustowork.Aretheyhavingasportsmeeting?Theyaren’thavinga

7、sportsmeeting.DidJaneplaytheguitarlastnight?Janedidn’tplaytheguitarlastnight.句型变化操练时态大比拼Shegotupatseveno'clockyesterday.（用now改写）Sheisgettingupnow.（用everyday改写）Shegetsupatseveno'clockeveryday.时态大比拼Look！Tomiscleaninghisroom.（用onweekends改写）Tomcleanshisroomo