资源简介

(共15张PPT)
A Good Read
Unit 7
Section A (4a-4c)
Grammar Focus
语法课
Learning objectives
能识别并说出现在完成时的基本结构，理解ever、never、just、already、yet 的含义及用法；能区分现在完成时与一般过去时的用法差异
能完成 4b、4c 的练习，正确使用现在完成时和相关副词进行对话和语篇填空
能运用现在完成时，通过 4d 的采访活动交流自身阅读经历
01
02
03
Read the sentences and underline the present perfect forms of the verbs. Pay attention to the meanings of the bold words.
Have you decided on a book for your report Yes, I have. /No, I haven’t.
Has Peter ever heard of this book No, he’s never heard of it.
Has Chen Jie read this book yet No, but she’s already borrowed it from the library.
What have you read recently I’ve just finished The Romance of the Three Kingdoms.
I’ve=I have
she’s=she has
haven’t=have not
hasn’t=has not
4a
彼得，你决定你的报告用哪本书了吗？
是的，我决定了。/ 不，还没有决定
彼得听说过这本书吗？
没有，他从没听说过。
陈杰读过这本书了吗？
没有，但她已经从图书馆借走了
你最近读了什么书
我刚刚读完《三国演义》。
Presentation
1. 表示过去发生或已经发生的动作对现在造成的影响或结果。常和already、yet、never、ever、just、so far等连用
1、现在完成时的用法
I have cleaned the living room. 我已经把客厅打扫过了。（现在已经干净了）
We have learned English for 6 years. 我们学英语已经六年了。（可能会继续学下去）
cleaned
clean
2. 表示某一动作或状态从过去某一时间开始一直持续到现在并且有可能持续下去。常和for+一段时间 或since+过去的时间点/从句连用
past
present
past
present
present perfect
future
present perfect
Presentation
主语 + have/has + 过去分词
2、现在完成时的结构：
句式 结构 示例
肯定式
我已经按时完成了我的作业。
否定式
我还没清理干净房间。
一般疑问式
你洗衣服了吗？
特殊疑问式
她在哪儿找到钥匙的
3、现在完成时的句式：
主语+have/has+过去分词+其他.
主语+haven’t/hasn’t+过去分词+其他.
Have/Has+主语+过去分词+其他
疑问词（组）＋have/has＋主语＋过去分词＋其他
I have finished my homework on time.
I haven’t cleaned out the room.
Have you washed the clothes
Where has she found the keys
Presentation
4、动词过去分词的变化规则
规则 原形一过去式一过去分词
在动词后加-ed help — helped — helped； clean — cleaned — cleaned
以字母e结尾的动词，只加-d move — moved — moved； die — died — died
“辅音字母+y”，变y为i，加-ed study — studied — studied； carry — carried — carried
以重读闭音节结尾，末尾只有一个辅音字母，双写该辅音字母，再加-ed stop — stopped — stopped； plan — planned — planned
（1）规则变化：
（2）不规则变化：书本P137
A — A — A read — read — read；cut — cut — cut；cost — cost — cost；put — put — put
A — B — B think — thought — thought；lose — lost — lost；shoot — shot — shot
A — B — C see — saw — seen；take — took — taken；ring — rang — rung
A — B — A run — ran — run；come — came — come
Presentation
标志词 常用句型 含义与功能
ever
never
yet
already
just
疑问句
肯定句
疑问句/否定句
肯定句
肯定句
曾经，询问经历
从未，否定经历
刚刚，动作刚完成
已经，动作完成
还，迄今（否）；已经（疑）
5、现在完成时标志词 1
I have already read the story.
I have just read the story.
I have never read the story.
I haven’t read the story yet.
Have you ever read it
常和
already（已经）
yet（已经；还）
just（刚刚）
ever（曾经）
never（从不）等连用。
Practice
Complete the conversations with ever, never, just, already, or yet.
4b
Presentation
They have lived there before.
She has finished her homework so far.
The village has changed a lot in the past few years.
We have been here for fifty years.
We have been here since 1970.
We have been here since 50 years ago.
We have been here since we got married.
5、现在完成时标志词 2
for+时间段
in\during+过去的时间段
since+时间点
since+时间段+ago
since+从句（一般过去时）
Presentation
现在完成时 一般过去时
用法
标志词
例句
只表示过去的动作或状态，与现在无关
表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况
常和already, yet, never, ever, just, so far, since, for等连用
常和yesterday, last week, just now, two days ago等具体的表示过去的时间状语连用
6、一般过去时和现在完成时区别
They went to the library yesterday.
He has already closed the window.
______ you ever _______ (try) to read books from different countries At the start of this year, I _______ (decide) to read books from as many countries as possible. I _______ (begin) with The Adventures of Tom Sawyer. Now I _______already _______ (read) twenty different books. These books __________ (teach) me a lot about other cultures and societies, and they ___________ (allow) me to see the world differently. In the past, I only _______ (know) the names of different countries, but now I understand them a little bit better. This experience has been amazing so far. I never _______ (realize) how big our world really is!
Have
tried
decided
began
have
read
have taught
have allowed
knew
realized
4c
在……开始时
尽可能多地……
在过去
有点儿；稍微
decide to do sth 决定做某事
begin with = start with 开始
a lot 许多
allow sb to do sth 允许某人做某事
到目前为止
Practice
Interview your classmates and find out who has done these activities.
read all four Chinese literary classics
read a book in a different language
read a book with more than 500 pages
watched a movie based on a novel
read a book more than twice
joined a reading club
4d
以……为基础（或根据）
Summary
过去分词变化规则
过去动作对现在的影响
过去持续到现在的动作
have\has +过去分词
用法
与一般过去时的区别
构成
句型结构
标志词: already、yet、just、ever、never
标志词
for + 时间段
since + 时间点\时间段\从句
so far \ before
in\during + 过去时间段
规则变化：ed \d \辅+y变ied \双写+ed
不规则变化：AAA\ ABB \ABC
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 + 过去分词 + 其他？
特殊疑问句：疑问词 + have/has + 主语 + 过去分词 + 其他？
一般过去时：只表示过去的动作或状态，与现在无关
现在完成时：过去动作对现在造成的影响或结果
Exercises
一、单项选择。
1.— It's ten years since we came here.
— How time flies! We _____ in China for so long.
A. work B. worked C. have worked
2.Today, all the erhu masters play and praise Erquan Yingyue. It _____ one of China's national treasures.
A.becomes B. became C. has become
3.Miss Brown, we _____ cleaning our classroom. Can we go home now
finish B. have finished C. are finished
4.— Your new watch is so nice! When did you buy it
— In April. I ______ it for two months.
A. have had B. had C. have bought
5.— Has your sister finished reading ________
— Yes. She has________ finished.
A. yet; yet B. yet; already C. already; yet
Exercises
二、用括号中所给单词的适当形式填空。
1.She __________(not read) the book yet.
2.________ you ________(decide) which book to buy yet
3.Tom won't go to the cinema with us because he ________ already ________ (see) the film.
4.David hasn't ________(finish) ________(read) Harry Potter yet.
5.We ________ just ________(clean) the classroom.
6.I ________(lend) my bike to her yesterday, but she ____________ (not give) it back to me yet.
hasn't read
Have
has
seen
finished
have
cleaned
decided
reading
lent
hasn't given

展开更多......

收起↑