英语人教版八年级下册unit9 sectionA grammar focus .docx

Unit9 Have You Ever Been to an Amusement Park?Section A grammar focus一、学习目标：1.掌握现在完成时的用法；2.了解一般过去时、现在完成时和现在完成进行时的意义的区别；3.能够准确使用多种时态谈论自己的经历。二、学习重点难点：1. 现在完成时的两个用法。2.现在完成时与一般过去时的区别。三学习过程Step1预习导学及自测：翻译官，试试看1.在船上 _2.space museum _3.一年到头 _4.all the time _5.四分之三 _6.take a ride _7.听说 _8.an English-speaking country _Step2情景导入：教师提出Have you ever been to ?引导学生看grammar focus回答，并教学生自己总结。Step3 合作交流 现在完成时的用法1.表示过去发生的或已经完成的某一动作对现在造成的影响或结果。2.表示过去已经开始，持续到现在动作或状态，可以和表示从过去某一时刻延续到现在（包括“现在”在内）的一段时间的状语连用。 现在完成时态的结构have (has)+过去分词构成:主语 + have/has + 过去分词 + 其他。( 当主语是第三人称单数时用has,其余人称用have。)否定式:主语 + havent/hasnt + 过去分词 + 其他。疑问式: Have /Has + 主语 + 过去分词 + 其他?肯定答语： Yes, 主语 + have/has.否定答语：No, 主语 + havent/hasnt.过去分词:规则动词的过去分词构成与动词过去式相同;不规则动词需要特殊记忆.和现在完成时态连用的时间副词或短语：1.already,yet,ever,never,just,before2.once,twice,three times,four times3.for + 一段时间,since +时间段4.these days, today,this year,so far, in the last past two years现在完成时态使用的注意事项：1. 表示过去发生的动作或存在状态，一直持续到现在，也许还将继续下去，可以和for+时间段，since+时间点/从句及how long 连用，谓语动词只可用延续性动词。常见的终止性动词与延续性动词之间的对应关系如下：come/go/ arrive/reach/get /move to -be in /atdie - be deadopen -be open close -be closedbecome -befall asleep -be asleepborrow -keepbuy-havebegin ,start - be onput on -wearleave -be away fromjoin the army -be in the army /be a soldierjoin the Party -be in the Party / be in the Party注意：have/has been与have/has gone区别(见课本)例：他去过长城。_他在哪儿？_ 他去长城了。_2. 瞬间动词在完成时态中的否定式可以接一段时间。Step4 Practice【当堂达标】一.写出下面动词的过去式和过去分词。1. go_2. study _ _3. have _4. be_ _5. cut_6. buy _ _7. live _8. begin _ _9. break_10.finish_ _二. 单项选择1. Have you ever been to an aquarium? No, _.A. I haveB. I am not C. I haventD. I hasnt2. Ive never been to a water park. _A. Me, tooB. Me, neither.C. Me also.D. Me both.3. Has the train _ yet?A.got toB.reachedC.arrivedD.arrived at4.The teacher asked _.A.whats your nameB.what was your nameC.what your name isD.what your name was5.Do you mind if I stay here a little longer?_.A.No, you cant B.Yes, you mayC.Certainly notD.Yes, not at all6.How long has his brother _ the book?A.keptB.boughtC.lentD.borrowed7.Ive never seen such a fine picture _.A.agoB.beforeC.yetD.later8.Has the foreigner been to many interesting places in Beijing?Yes, but he has not _been to many other parts of China.A.alreadyB.stillC.yetD.never三.Complete the dialogue.Jack:Hi, Tom.I _ _you for a long time.Where _ you _?Tom:I _ _ to Xian.Jack:Really?How _ you _ there?Tom:By _.Jack:_ _did it take you to fly there?Tom:Less _ two hours.Jack:_ _did you go there?Tom: