Unit 8 Have you read Treasure Island yet? Section A Grammar Focus-4c课件21张

(共21张PPT)
U8 Have you read Treasure Island yet
grammar focus
Grammar focus
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.
过去分词的构成
1. 规则变化（与动词过去式规则一样，此类称作规则动词）
Presentation
一般在词尾直接加 -ed 以不发音的e结尾的，加 –d 以“辅音字母+y”结尾的，改y为i加-ed 重读闭音节以一个辅音字母结尾的，双写这个辅音字母后加 –ed
work→worked slice→sliced study→studied stop→stopped
-ed 的读音规则：
① 在元音或浊辅音后读 [d]，如 tried [tra d]，lived [l vd]。
② 在清辅音后读 [ ]，如 worked [ ]，stopped [ ]。
③ 在[ ][d]后读[ d]，如 mended [mend d]，wanted [w nt d]。
2. 不规则变化（此类称作不规则动词，有很多）
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 Irregular Verbs（不规则动词表）
Have you read Little Woman 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.
现在完成时的结构
2
1)基本结构：肯定句：主语+_____/_____+___________+其他
否定句：主语+_____/_____+_______+_________+其他
疑问句：_____/_____+主语+__________+其他
---Yes, 主语+_____/___. ;No,主语+_______/______.
2)常与标志词_____________________________一起出现
have has 过去分词
have has not 过去分词
Have Has 过去分词
have has
haven’t hasn’t
already, yet
现在完成时定义三要素：
1.表示到现在为止已经完成或刚刚完成的动作。
2.一件发生在过去的事情对现在产生影响。
3.一个动作开始于过去，并持续到现在（也许还将持续下去）。
2012
started learning English
2016
learning
4 years
have learned English
I started learning English in 2012.
I am learning English these days.
I have learned English for 4 years.
（一般过去时）
（现在进行时）
（现在完成时）
1) 表示到现在为止已经完成或刚刚完成的动作。
By now, I have collected all the data I need.
Now we have planted all the trees.
2) 表示过去发生的动作,强调结果或对现在的影响。
Someone has broken the window.
I have just cleaned my hands.
(窗户现在是坏的)
(手是干净的)
3) 表示从过去开始并持续到现在的动作或状态。
She has learned English for 5 years.
He has lived in Beijing since he was born .
标
志
词
already / yet
ever / never
just / before / up to now / in the past years
already一般用于肯定句；yet用于否定句和疑问句。
多用于否定句和疑问句中，意为“曾经”；“从未”。
already和yet都可以作为现在完成时的标志词，但它们的用法不同。
用法1
表示过去发生的动作对现在产生的结果或影响
用法2
表示过去发生的动作一直延续到现在且有可能继续下去的动作或状态。
already, yet
ever , never , just ,before
since VS for
Adverbial clauses of the present perfect tense
since
for
Adverbial clauses of the present perfect tense
现在完成时 一般过去时
用法
时间 状语
谓语 动词
表示过去发生的动作对现在造成的影响，侧重于现在的情况。
表示过去某个时候发生的动作或存在的状态，与现在无关。
常和already, yet, just, ever, never, before, since, for等连用。
常和 yesterday, last week, just now, in 2012, two days ago等具体的表示过去的时间状语连用。
与一段时间连用时，谓语动词要用延续性动词而不用非延续性动词。
谓语动词没有延续性或非延续性动词的限制。
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.
Use the words in brackets to complete the conversations.
4a
Tip: Find the key words to identify which tense to use.
Presentation
I’ve just drunk some tea
Have you found it yet
3. A: Do you know when Tom is leaving
B: ________________________________. (already / leave)
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)
He has already left
did he leave
She has already seen the film
have not/haven't told them yet
Fill in the blanks with the correct forms of the words in brackets.
4b
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
Presentation
Complete the chart with information about you and a friend.
4c
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.
You Your friend Comments
Books I have already read
Movies I have already seen
Songs I have already heard
你觉得它们如何？
Exercises
She __________(not read) the book yet.
________ you ________(decide) which book to buy yet
Tom won't go to the cinema with us because he ________ already ________ (see) the film.
David hasn't ________(finish) ________(read) Harry Potter yet.
We ________ just ________(clean) the classroom.
I ________(lend) my bike to her yesterday, but she ____________ (not give) it back to me yet.
用所给单词的适当形式填空。
hasn’t read
1
2
3
4
Have
has
seen
finished
have
cleaned
5
decided
reading
lent
hasn’t given
6
Exercises
按要求改写句子，每空一词。
1
She has already written the music. (改为一般疑问句)
________ she written the music _______
They studied English 2 years ago. (用 since 2 years ago 改写)
They ______ ________ English since two years ago.
Has Tom helped his parents yet (作出肯定回答)
_______, _____ _______.
2
3
Has
yet
have studied
Yes he has
Exercises
The three students have been together for 3 hours. (对画线部分提问)
___________ ____________ have the three students been together
She has already gone to England. (改为否定句)
She _____________ gone to England _____________.
He hasn't come to school because he's ill. (对画线部分提问)
_____________ _____________ he come to school
4
5
How long
hasn’t
Why hasn’t
yet
6
Summary
Words & Expression
Grammar
fiction
science fiction
现在完成时态
构成
过去动作对现在的影响
过去持续到现在的动作
过去分词
technology
French
用法
与一般过去时的区别
already和yet的区别
Sentences
① Have you read Little Women yet Yes, I have./No, I haven’t.
② Has Tina read Treasure Island yet Yes, she has. She thinks it’s fantastic.
③ Have you decided which book to write about yet
Yes, I have. I’ve already finished reading it. It was really good.
THANKS