Unit 8 Have you read Treasure Island yet Section A Grammar focus 4a—4c 课件（共18张PPT）

(共18张PPT)
Unit 8 Have you read Treasure Island yet （Section A Grammar Focus 4a-4c）
年 级：八年级
学 科：中学英语（人教版）
1. understand what present perfect tense is and grasp the structure;
2. use already and yet correctly in present perfect tense;
3. distinguish the present perfect tense and past simple tense;
4. use different kinds of tenses properly in a complex context.
By the end of the class, you will be able to:
Learning objectives:
Do you often read English books
What classic books have you already read
What’s it about
And what’s it like
Let’s talk:
Report:
In my group, I have read….I think it's very....It's about...
… has already read … . He/She thinks it's very....It's about...
… has already read….He/She thinks it's very....It's about...
We all think … is the best of the 4 books.
We hope everyone can enjoy reading the book.
Have you read Little Women yet Yes, I have./No, I haven’t.
Has Tina read Treasure Island yet Yes, she has. She thinks it’s fantastic.
Have you decided which book to write about yet Yes, I have. I’ve already finished reading it. It was really good.
Grammar Focus
Let’s learn:
Observe this chart and read the sentences.
1.现在完成时是如何构成的？
2.什么副词经常与现在完成时连用？
1.现在完成时是如何构成的？
Have you read Little Women yet Yes, I have./No, I haven’t.
Has Tina read Treasure Island yet Yes, she has. She thinks it’s fantastic.
Have you decided which book to write about yet Yes, I have. I’ve already finished reading it. It was really good.
have/has+过去分词
2.什么副词经常与现在完成时连用？
Have you read Little Women yet Yes, I have./No, I haven’t.
Has Tina read Treasure Island yet Yes, she has. She thinks it’s fantastic.
Have you decided which book to write about yet Yes, I have. I’ve already finished reading it. It was really good.
already用于肯定句 ；
yet用于否定句和疑问句
常见的标志词：ever,never,just,before,so far,
in the past...years等
past
now
future
I had breadfast.
I’m not hungry now
I have already had breadfast.
1、表示_____发生或已经完成的某一动作对_____造成的影响或结果。
过去
现在
2、表示动作或状态从_____某一时间开始，一直_____到_____,而且可能还要继续下去。
past
now
future
I lived here in 2018.
I still live here now.
I have lived here for five years.
过去
现在
持续
现在完成时态的用法
① 肯定句：主语 + ___________ + __________ + 其他.
② 否定句：主语 + ___________ + __________ + 其他.
③ 一般疑问句：_________ + 主语 + _________ + 其他
肯定回答：_________, 主语 + ___________.
否定回答：_________, 主语 + ______________.
have/has
过去分词
have/has not
Have/Has
过去分词
Yes
have/has
haven’t/hasn’t
过去分词
No
have not=haven’t
has not=hasn’t
现在完成时态的结构
Have you read Little Women yet Yes, I have./No, I haven’t.
Has Tina read Treasure Island yet Yes, she has. She thinks it’s fantastic.
Have you decided which book to write about yet Yes, I have. I’ve already finished reading it. It was really good.
现在完成时与一般过去时的区别
比较:1. A: What did you do last weekend
B: I saw a new movie.
2. A: Would you like to see the movie with me
B: Thanks for your inviting, but I have seen it already.
总结 一般过去时 现在完成时
1.用法不同
(只谈论上周末做的事情，不涉及现在)
(影响：因为已经看过了，所以现在不去看了)
只表示过去的动作或状态
(不涉及现在)
表示过去发生的事情对现在造成的影响或结果
(与现在有联系)
动词过去分词的规则变化：________________________
stay → _______ → _______
work → _______ → _______
taste → _______ → _______
like → _______ → _______
study → _______ → _______
copy → _______ → _______
stop → _______ → _______
drop → _______ → _______
stayed
stayed
worked
worked
tasted
tasted
liked
liked
studied
studied
copied
copied
stopped
stopped
与该动词的过去式相同
一般情况下直接 + ed
以不发音e结尾的直接+ d
dropped
dropped
以辅音字母+y结尾的，把y变i 再 + ed
以重读闭音节“辅元辅”结构
结尾的， 双写尾字母，再+ed
过去分词的构成
不规则变化（此类称作不规则动词）
原形（不定式） 过去式 过去分词
be was/were been
have had had
choose chose chosen
put put put
run ran run
参看课本P136-137（不规则动词表） 1. A: Would you like something to drink
B: No, thanks. _______________________
(just/drink some tea)
2. A: I heard you lost your key.
__________________ (find)
B: No, not yet.
3. A: Do you know when Tom is leaving
B:___________________ . (already/leave)
Use the words in brackets to complete the conversations.
I’ve just drunk some tea.
Have you found it
He has already left
4a
Let’s do:
Tip1.Read the context(上下文).
Tip2. Pay attention to the clue words “adverbs of time "
(时间状语)
A: When _________________ (leave)
B: This morning.
4. A: Is your sister going to the movies with us
tonight
B: No. _________________________ .
(already/see the film)
5. A: What do your parents think about our plan
B: I ____________________. (not/tell them/yet)
did he leave
She has already seen the film
have not told them yet
4a
Fill in the blanks with the correct forms of the words in brackets.
Sally ____ (love) reading. In the morning, she reads the newspaper and in the evening she reads books. She ___ already ____ (read) more than 100 different books! Her favorite kind of books is science fiction.She is interested in science and technology and loves to imagine what the world _______ (be) like in 50 years. She ________ (finish) reading a book about robots last week and _________ (write) a book report about it next week for her French class. Every time she is in the library, Sally looks at the many books she __________ (not read) yet and she can’t wait to read them!
loves
has
read
will be
finished
will write
hasn’t read
迫不及待做某事
4b
Interview one of your friends and complete the chart with
the information you get.
Experiences You Your friend Comments
Books I have already read
Movies I have already seen
Songs I have already heard
Let’s interview:
A: What books have you already read
B: I've already read Tom Sawyer and Harry Potter.
A: What do you think of them
B: Well, I think Harry Potter was exciting, but Tom Sawyer was a bit boring. What about you
A: ...
You can talk with your friend like this:
summary
Present Perfect Tense 现在完成时
have/has+ 过去分词
1.规则变化:与过去式变化相同
1)一般词尾+ed.
2) 以不发音字母e结尾+d
3）以辅音字母 + y结尾，变y为i，+ed
4）词尾只有一个辅音字母的重读闭音节词，
双写该辅音字母，再+ed
2.不规则变化
现在完成时与
一般过去时的区别
1)意义
2）结构
3）标志词
1.表示过去发生或已经完成的某一动作对现在造成的影响或结果。
2.表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续下去。
用法
02
Thank you !