资源描述：
《过去时和现在时语法.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Simplepasttense&SimplepresenttenseGrammarTeachingaims1.Masterthedifferentformsoftheverbtobeordo.2.TocomparetheusageoftheSimplePastTenseandtheSimplePresentTense.GuideOne请大家在5分钟之内相互讨论一下，看看谁能在最短的时间内总结的又快又准。1.Iamateacher.2.Youarestudents.3.Herhairislong.4.Iamnotateacher.5.Areyougoodatswimming?5.用法口诀
2、：“我(I)”用am,“你(you)”用are,“is用于“他(he)”、“她(she)”、“它(it)”,复数人称we/you/they都用“are”。单数名词和不可数名词用is,复数名词全用are.一般现在时be动词在肯定句中的用法Iam或I’mhappyYou/We/Theyare或You’re/We’re/They’reHe/She/Itis或He’s/She’s/It’s一般现在时be动词的否定句Iamnot或I’mnothappyYou/We/Theyarenot或You/We/Theyaren’tHe/She/Itisnot或He/She/Itisn’t主语+系动词be+
3、not+其他.特别提示：amnot不能缩写为amn’t.一般现在时be动词的一般疑问句及其肯定回答AmIhappy?Yes,Iam.Areyou/we/theyyou/we/theyare.Ishe/she/ithe/she/itis.一般疑问句的否定回答No,Iamnot或I’mnothappy.you/we/theyarenot或aren’the/she/itisnot或isn’t结构：系动词Be+主语+其他?肯定回答：Yes,主语+be.否定回答：No,主语+be+not.提示：amnot不能写为amn‘t，无缩写形式.布置作业:用be的适当形式填空1.A:What___(be)
4、hisname?B:Hisname___(be)Tom.2.A:___(be)youMike’sclassmate?B:Yes,I___(be).3.A:What___(be)yourbrother?B:He___(be)adoctor.4.A:___(be)theyyournewclassmates?B:No,they___(benot)5.A:___(be)thisyoure-dog?B:No,it__(benot)变式练习将下列肯定句变成(1)变成否定句。(2)一般疑问句并作肯定和否定回答;肯定句：Wearegoodfriends.否定句：Wearen’tgoodfriends.
5、疑问句：Areyougoodfriends?肯定回答：Yes,weare.否定回答：No,wearen’t.肯定句：SimonandSandyareclassmates.否定句：SimonandSandyaren’tclassmates.疑问句：AreSimonandSandyclassmates?肯定回答：Yes,theyare.否定回答：No,theyaren’t.Iamtwelveyearsold.我去年11岁。Iwaselevenyearsoldlastyear.Heisathomenow.他现在在家里。Pleaselookatthefollowingsentences.我今年
6、12岁。他昨天在家里。Hewasathomeyesterday.TheyareinChinatoday.他们今天在中国。TheywereinChinayesterday.他们昨天在中国。Pleaselookatthefollowingsentences.beamisarewaswere观察那几个句子，你发现了什么？Freetalk:1.Weusethesimplepasttensetotalkaboutthingsinthepast.一般过去时的用法提示：表示过去的时间状语：justnow,yesterday,yesterdaymorning/afternoon/evening,las
7、tnight/week/month/year,in2008,amonthago,tenyearsago…1.I_______(be)bornin2000.2.We_______(be)athomeyesterday.肯定式：主语+was/were+…Simplepasttenseoftheverb‘tobe’waswere句型结构：否定式：主语+wasnot(wasn’t)/werenot(weren’t)+…1.She_______(notb
