外研版八年级下册英语现在完成时要点解析ppt课件.ppt

1、外研版本八年级年级下册 现在完成时的用法 微课（课件）名 现在完成时用法小结 构成 1 用法 2 标志词 3 重难点 4 现 在 完 成 时 现在完成时的用法 现在完成时的用法 情境导入情境导入 Hello, Ken! Hi, George! Have you just been to the cinema? Yes, I have. 微课（课件）名 现在完成时的用法 现在完成时的两种主要用法现在完成时的两种主要用法 1.1.过去发生的动作对现在造成的影响或结果。过去发生的动作对现在造成的影响或结果。 2.2.过去已经开始，持续到现在的动作或状态。过去已经开始，持续到现在的动作或状态。 had

2、 breakfast I have already had my breakfast. Im not hungry now moved here 2015 I still live here I have lived here for three years. I have lived here since three years ago. now now pastpast timetime 微课（课件）名 现在完成时的用法 基本结构基本结构 have / has + done 助动词助动词 （可以帮助（可以帮助 构成肯定、疑问和构成肯定、疑问和 否定句）否定句） 微课（课件）名 现在完成时的

3、用法 1.He has cleaned his room. (改为否定句和一般疑问句并作肯定和否定回答）改为否定句和一般疑问句并作肯定和否定回答） He hasnt cleaned his room. Has he cleaned his room? Yes,he has . No,he hasnt 2. She has lived in London for 3 years. (划线部划线部 分提问）分提问） How long has she lived in London? 微课名 现在完成时的用法 现在完成时的现在完成时的标志词标志词 ever,never,already;just,be

4、fore; yet; recently 等等 Since+时间点时间点; for+ 一段时间一段时间 in the past/last+ 段时间段时间 So far 到目前为止到目前为止 微课（课件）名 现在完成时的用法 since 和for 的区别 注：注：since 和和for 的区别的区别 since后后+时间点，时间点，如：如：2001，yesterday， last week, the time I got there, November 等等 表示”自从”表示”自从” for后后+一段时间一段时间，表示“长达多久”，表示“长达多久” 如如 ten years. three days

5、, a while等等 重难点重难点 1 1 微课（课件）名 现在完成时的用法 for和和since对比联系对比联系 1. Tim has been in China _ Monday. 2. Tom has been in China _ two weeks. 3. Her sister has lived in Australia _ three years 4. Elizabeth is in her office. She has been there _ 7 oclock. sincesince forfor forfor sincesince 重难点巩固练习重难点巩固练习 微课（课

6、件）名 延续性动词与短暂性动词 I have left the school for eight years. I have been away for eight years. 与一段时间连用时，要使用延续性动词 重难点重难点 2 2 Left-be away I have left the school . 微课（课件）名 现在完成时的用法 非延续性动词可以转换成延续性动词，主要非延续性动词可以转换成延续性动词，主要 有以下几种：有以下几种： 、用相应的延续性动词；、用相应的延续性动词； buy - have, borrow - keep, put on - wear, come/go/b

7、ecome - be. catch/get a cold - have a cold, 微课（课件）名 现在完成时的用法 、转换成、转换成 be名词名词; join the Party - be a Party member, join the army - be a soldier, go to school - be a student. 、转换成、转换成be + 介词短语介词短语 : go to school - be in school, join the army - be in the army. 微课（课件）名 现在完成时的用法 、转换成、转换成be + adj./adv. :

8、die - be dead, finish - be over, begin/start - be on, close - be closed, leave () - be away (from), open - be open, fall asleep - be asleep. 微课（课件）名 现在完成时的用法 1、-How long have you _ the library book ? -For about two weeks . A. borrow B. borrowed C. are borrowing D. kept 2、 -How long has he_ this car? -For two years. A. buy B. bought C. had D. buys 3.His grandma_ since two years ago. A. was died B. has been dead C. was dead D. has died D C B 巩固练习 微课（课件）名 现在完成时的用法 Thank You！