Unit 8 Grammar Focus 现在完成时

1、Unit 8 Have you read Treasure Island yet?Grammar Focus1. Master the structure and usage of present perfect tense.2. Use present perfect tense correctly to talk about recent events and experiences.Learning goalsEnjoy the music and fill in the blanks_ you _(see,seen) my Childhood?People say Im strange

2、 that wayCause I love such elementary things,It _ _(be, been) my fate to compensate,for the Childhood I _ never _(know, known).HaveseenhasbeenhaveknownEnjoy the music and fill in the blanksI _ _(pay, paid) my duesTime after timeI _ _(did, done) my sentenceBut committed no crimeAnd bad mistakesI _ _(

3、make, made) a fewI _ _(have, had) my share of sandKicked in my faceBut I_ _(come, came) through.havepaidhave donehavemadehavehadhavecomeDiscuss and write不规则动词不规则动词 过去式过去式 过去分词过去分词read _ _put _ _ beat _ _ come_ _ run _ _ teach_ _find _ _see _ _eat _ _readreadputputbeat beatencame comeranruntaught tau

4、ghtfound foundsawseenateeatenS (三单三单) + 助动词助动词has+过去分词过去分词肯定句肯定句: :S (其他其他) + 助动词助动词have + 过去分词过去分词肯定句肯定句: :肯定句：肯定句：S + 助动词助动词have/has +过去分词过去分词+否定句：否定句：S + have/has not+过去分词过去分词+have not = havent has not = hasnt肯定回答：肯定回答：Yes, S + have/ has.否定回答：否定回答：No, S + havent/ hasnt.一般疑问句：一般疑问句：Have/Has + S +

5、过去分词过去分词 + ?特殊疑问特殊疑问句：句：疑疑问词问词 + have/ has + S + 过去分词过去分词 + ?疑问词疑问词 + have/ has + 过去分词过去分词 + ?构成构成现在完成时是由现在完成时是由“助动词助动词have / has+ 动动词的过去分词词的过去分词”构成的，规则动词的过构成的，规则动词的过去分词构成与过去式相同，不规则动词去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。的过去分词则需逐个记忆。 用法用法1. 表示过去发生或已经完成的某一动作表示过去发生或已经完成的某一动作 对现在造成的影响或结果。对现在造成的影响或结果。 e.g. Have

6、you had your lunch yet? Yes, I have. Ive just had it. (现在现在 我不饿了。我不饿了。)现在完成时现在完成时2. 表示动作或状态从过去某一时刻开表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要始，一直延续到现在，而且可能还要继续下去。继续下去。e.g. I havent seen her these days. Ive known Bob for three years. Ive been at this school for over two years. 时间状语：时间状语：already, yet, before, re

7、cently, never, ever, once, twice, since+一段时间一段时间+ago, since+过去的时间点过去的时间点, for+一段时间一段时间, so far, up to now, in the past/last .years.e.g. I have read this book before. I have never been to America. Have you ever seen a tiger? I have read this book twice.常见的标志常见的标志already和和yet都可以作为现在完成时的标志都可以作为现在完成时的标志

8、词，但它们的用法不同。词，但它们的用法不同。already一般用于一般用于肯定句肯定句中，通常位于中，通常位于过过去分词之前去分词之前。如：。如： We have already cleaned up our classroom. already用于用于疑问句疑问句中时通常表示中时通常表示惊奇惊奇。如：如： Have you finished your homework already? I cant believe it.yet一般用于疑问句和否定句中一般用于疑问句和否定句中。e.g. Have you seen her yet? The bus hasnt come yet.Holly h

9、as _ fed the dog, but she hasnt watered the plants _.A. still; already B. already; yetC. yet; still D. yet; alreadySummary构成构成用法用法时间标志时间标志1. China develops so fast. Thats true. It _ a lot already. A. changesB. changed C. will changeD. has changed 2. Julia isnt going to the cinema with us because she

10、 _ the film. A. sees B. saw C. will see D. has seen 活学活用活学活用3. Id like to introduce my best friend to you, Peter. Thank you, Lucy. But we _ already. A. meet B. met C. will meet D. have met4. Kitty, will you go to see the film Cinderella this evening? No, I wont. I _ it already. A. saw B. have seen C. see D. will see5. Our school is having a sports meeting. Someone _ here alrea