Unit 8 Have you read Treasure Island yet 第三课时Section A（Grammar Focus-4c）（正文）（作业课件）-【优翼·学练优】2023-2024学年八年级英语下册同步备课（人教版）

优型 学练优八年级英语下(RJ) 优超 第三课时(Grammar Focus~4c) 语法精讲 现在完成时（一】 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 型 般疑问句：Have/Hasf①肯定回答：Yes,主语+have/has.如：Yes,I have. +主语+过去分词+其他？ ②否定回答：No,主语+haven'/hasn't,如：No,I haven't 现在完成时（一） 表示过去某一时间 标志词：for+一段时间，since+-过去的某个时间点/从句。如：They 开始并一直持续到 have known each other since they were children.他们从小就认识a 法及标志词 现在的动作或状态 表示过去发生或已经 标志词：since,before,.already,.yet,ever,never,just等。 完成的动作对现在造 如：I have already finished my homework我已经完成作业了。 成的影响或结果 般过去时只强调过去的动作；现在完成时强调过去的动作对现在的影响。 与一般 般过去时通常与表示过去的明确时间状语连用；现在完成时的时间状语较模糊。 过去时 0 一般过去时只表示动作发生在过去；现在完成时表示过去的动作或状态延续到现 的区别 在并可能持续下去。 课时精练 [,用括号内所给动词的适当形式填空。 1,Tina already She an hour ago. (leave) 2.— Wei Hua yet? -Yes,she just now.（come) 3.Your father (not finish)his work yet.Don't trouble him. 4.Someone take)the bags away.Now there's nothing on the desk. 5.My mother (be)a teacher for 16 years. 6.Jack (move)to Changsha 8 years ago. Ⅱ.用方框中所给单词的适当形式填空。 technology,France,fiction,interest,watch 1.Sally is in animals and she always goes to the zoo. 2.I haven't read the science The Three Body Problem. 3.The movie is so exciting that I can't wait it again, 4.My brother has lived in Paris for 5 years and he can speak well now. 5.With the development of science and people's life is getting better and better. 优 Ⅲ.单项选择。 ( )1.-How about the fourth season of the documentary Aerial China(《航拍 中国》)？ -Great,I it twice. A.watched B.watch C.will watch D.have watched 优@ )2.Sally her handbag in the taxi and the police found it this morning. A.forgot B.has forgotten C.forgets D.had forgotten )3.-Has Jack solved the math problem? -Not yet.But I believe he it out in a few minutes. A.has worked B.will work C.was working D,works