Module 4 Unit 3　Language in use 课件 2023-2024学年外研版英语八年级下册

Module 4 Seeing the doctor Unit 3 Language in use 英语(外研版) 八年级下册 1.I haven't done much exercise since I got my computer last year. 2.I have had him for three months now. 3.Since then, it has become part of my life. 教 材 链 接 语法探究 现在完成时(3) 一、现在完成时的“未完成用法” 现在完成时表示动作或状态从过去开始,一直延续到现在,还可能继续延续下去。这种用法叫“未完成用法”,常与for或since引导的时间状语(从句)连用。 语 法 详 解 表示“未完成”的句式 例句 现在完成时+since+表示过去的时间点 I have studied English since 2010. 现在完成时+since+从句 I have studied English since I was 10 years old. 现在完成时+since+一段时间+ago =现在完成时+for+一段时间 I have studied English since 13 years ago. =I have studied English for 13 years. 对现在完成时的时间状语提问时,常用how long。 二、延续性动词和非延续性动词 1.延续性动词表示经验、经历;非延续性动词表示行为的结果,不能与表示一段时间的状语连用。有些非延续性动词可以用延续性动词替换并用在现在完成时中。 2.在现在完成时的句子中,若含有for或since引导的时间状语,则句中的谓语动词一定要用延续性动词。非延续性动词转换为延续性动词的方法有: (1)将非延续性动词(短语)转化为“be+形容词/副词/介词/名词”,这样才能和时间段连用: begin/start be on(开始) go there be there(去那里) come back/return be back(回来) come here be here(来这里) open be open(开业) close be closed(关门) die be dead(死) marry be married(结婚) finish be over(结束) go to bed be in bed(上床睡觉) leave be away(离开) get out be out(出去) fall asleep be asleep(入睡) join be in/a member of(参加;加入) (2)有的非延续性动词(短语)可以转化为意思相同的延续性动词(短语): borrow keep(借) buy have/own(买) put on wear/be on(穿) catch a cold have a cold(感冒) become be(成为) receive have(收到) get to know know(认识) go to sleep sleep(睡觉) 一、单句选词填空 since leave buy for begin 1.My mother has taught in this school _ she was 24 years old. 2.Can you imagine how long the man has _ the phone? 3.The movie has _ for five minutes.Let's hurry up. 4.Be quiet, please.The baby has been asleep _ just one hour. 5.Mr Green has _ for three days. since had/owned been on for been away 课堂检测 二、单项填空 ( )1.(2023徐州) I saw Harry in February and I him since then. A.didn't see B.won't see C.haven't seen D.don't see ( )2.(2023扬州) I China for three months and this is the first time I've tried on hanfu. A.have gone to B.have been to C.have arrived in D.have been in C D ( )3.What a lovely bike! have you had it? A.How often B.How soon C.How