Module 2 Unit 3 Language in use-【一本】2022-2023学年八年级下册英语同步PPT课件（外研版）

一本 初中同步训练 英语 八年级下册(WY版) 一本 Unit 3 Language in use 片语法精讲 一本 现在完成时(I) 一、现在完成时的基本概念 1.现在完成时表示在过去某个时间已经发生的行为或曾经做过的事情对目前 有某种影响。 I have seen the film. 我看过这部电影了。 2.现在完成时表示到目前为止己经完成的事情。 I have already read this book我已经读过这本书了。 一本 二、现在完成时的构成 现在完成时由“助动词have/has十动词的过去分词”构成。 三、动词过去分词的构成 1.规则变化 动词过去分词的规则变化与动词过去式的规则变化相同。 2.不规则变化 不规则变化也有一定的规律，我们可以在日常学习中归纳记忆。（以下也包含 过去式的不规则变化) 一本 1)0→a*0 come→came*come;become→became→become (2)i*a→u begin→began→begun;sing→sang→sung;swim→swam→swum (3)ow-→ew→own groW→greW→grown;throw→threw→thrown;know→knew→known (4)过去式和过去分词中含有ought或aught bring-→brought-→brought;buy→bought-→bought;fight→fought→fought; teach→taught→taught;catch→caught→caught 四、现在完成时的各种句式 1．肯定句：主语＋have/has＋动词过去分词＋其他。 I have visited that museum already.I don't want to go there again。 我已经参观过那个博物馆了。我不想再去那里了。 2．否定句：主语＋have/has＋not+动词过去分词＋其他。 The boy hasn't read the book yet。 这个男孩还没有读这本书。 一本 3.一般疑问句：Have/Has十主语十动词过去分词十其他？ 肯定答语：Yes,主语代词+have/has. 否定答语：No,主语代词+haven't/hasn't. -Has the girl finished her homework yet? 这个女孩完成她的作业了吗？ -No,she hasn't.不，她还没完成。 一本 语法精练 D )1.I'm so glad that I nearly half of the test now. A.finish B.finished C.will finish D.have finished (A)2.(2021安徽)—Our computer is working again! -Yes.Our IT teacher it.It took him about an hour. A.has fixed B.will fix C.is fixing D.was fixing 一本 B )3.-Alice,have you finished learning the whole book? -Not yet.So far,we six units. A.learnt B.have learnt C.learn D.will learn A )4.I like novels written by J.K.Rowling.So far,I all her works about Harry Potter. A.have read B.read C.am reading D.will read 一本 C )5.-Mum,where is Anna? -She to see a movie. A.is going B.goes C.has gone D.was going (C)6.(2021湖北黄冈)-Dad,Ican't find my school ID card.Did you see it? -No,I didn't.I think you it! A.lose B.will lose C.have lost D.are losing