Unit 8 第3课时 Grammar Focus－4c-【一本】2022-2023学年八年级下册英语同步PPT课件（人教版）

一本 初中同步训练 英语 八年级下册RJ版) 一本 第三课时( Grammar Focus-4c 现在完成时(─) 1．含义 现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果。 2．句式结构 现在完成时由“助动词have/has＋过去分词”构成。 肯定句：主语＋have/has＋过去分词＋其他。 否定句：主语＋have/has+not＋过去分词＋其他。 一般疑问句：Have/Has＋主语十过去分词十其他? 肯定回答：Yes，主语＋have/has。 否定回答：No，主语＋haven't/hasn't。 一本 3.already和yet的用法 (I)alread山y常用于肯定句中，指动作己经发生，一般放在have/has之后，也可 以放在句末。 (2)yεt常用于疑问句或否定句中，谈论还未发生但可能发生的事，通常位于句 末。 一本 同步练习 I.用方框中所给单词的适当形式填空 fiction,technology,France,interest,read 1.Have you ever read the book? 2.(2021河北沧州十五中月考)Chinese children are interestedn Monkey King's story.Because the hero is smart and brave. 3.Science and technology can make education better. 4.(2019湖北随州中考改编)After three months in France,I am comfortably speaking nowrench 5.My brother's favorite book is science fiction. 一本 川.用括号内所给单词的适当形式填空 1.-Has he brought (bring)the book to school yet? -Yes,he has. 2.Every time she is in the library,Lisa finds many books she hasn't read (not read)yet and she can't wait to read (read)them! 3.-Would you like something to drink? -No,thanks.I have just drunk (drink)some tea. 一本 4.-Have you found (find)your knife yet? -Not yet. 5.-Have you written(write)a letter to your aunt yet? -No,I will write (write)it next week. 一本 川.单项选择 (A)1.(2021湖南湘潭中考)一Treasure Island is exciting. -I agree with you.I it twice. A.have read B.had read C.read (C)2.(2020天津中考)-The book is popular.一you it yet? -Yes,I have. A.Are;reading B.Were;reading C.Have;read D.Will;read 一本 B )3.-Jenny,your new tape player looks great. -Oh,it's not new.I it for three years. A.buy B.have had C.bought D.have bought (A)4.(2021湖北襄阳中考)-Why are you in such a hurry? -Because the class for 10 minutes. A.has been on B.has begun C.is on D.begins 一本 B )5.-How many letters you to your mother? -109 in all,since 2016. A.has;written B.have;written C.did;write D.are;writing