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1、Welcometoourclass已学习过的时态1.v原形2.v三单am/is/are+v-ing1.will/shall+v原形2.begoingto+v原形1.v-ed(规则动词)2.不规则动词was/were+v-ing时态不同时间发生的动作,动词要用不同形式(即相应的时间要用相应的时态)学习目标1.Help the students to grasp the grammar of the present perfect tense (复习、掌握语法现在完成时)2、Train the students’abilities of using thepresent
4、时的时间状语◆标志词:alreadynevereverjustyetbeforesofarsinceforonce上一页下一页主菜单I,finish,homeworkIhaven’tfinishedmyhomework.Haveyoufinishedyourhomework?Yes,Ihave./No,Ihaven’t.Ihavefinishedmyhomework.(1).Have(has) been to意思为“去过某地”(现在已经回来了)如:I've been to Beijing .我去过北京了。They have been to that villages
5、everal times.他们去过那个村庄好几次了。(2).Have(has) gone to意为“去了某地”(现在没有回来)如:—Where is Tom?汤姆在哪里?—He has gone to the bookshop.他到书店去了。例如:HehasgonetoHongKong.他到香港去了。(他已前往香港,或在途中,或已到达。说话人暗示他现在不在现场)HehasbeentoHongKong.他曾到过香港。(说话人认为他过去到过香港,现在已不在该地。言外之意他对香港有所了解)Dosomeexercise()1.—IsJamesathome?—No,he___
7、 5 o’clock.2)since+时间段+agoHe has watchedTVsince 5 hours ago.3)since+从句She hasstudiedEnglishsince he came here.for:(长达)for+时间段Hehaskeptthebookfor2weeks.since,for的用法:Takenotes二者可以转换for+一段时间=since+一段时间+agoHehasbeenhereforfiveweeks.=Hehasbeenheresincefiveweeksago.他到这儿已经有五个星期了。选择for或since