人教版英语八年级下册同步课件：unit8 sectionA-4a-4c（23张）

(共23张PPT)
Unit8 Have you read Treasure Island Section A grammar 4a-4c
Have you read Little Women yet
Yes, I have. / No, I haven’t.
Role play
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.
1．现在完成时的构成
主语＋have/_____＋动词的过去分词＋其他．
has
[探究 现在完成时]
2．现在完成时的用法
表示过去发生或已完成的动作对现在造成的影响或结果，常和________， yet, never, ever, just, before等副词连用。
I can't find my watch now.I think I have already lost it. 现在我找不到我的手表了，我想我已经把它弄丢了。(“丢手表”发生在过去，但现在还没有找到，即过去的动作对现在造成了影响。)
already
He has seen the film, so he won't go with us.
他看过这部电影了，因此他不会和我们一起去。
(“看电影”发生在过去，但对现在还有一定的影响。)
[注意]
already与yet都有 “已经”的意思，但already 常用于肯定句， yet常用于否定句或疑问句，且位于句末。
I have already finished my homework.
我已经完成家庭作业了。
I haven't finished my homework yet.
我还没有完成家庭作业。
already有时也用于疑问句，表示一种惊讶的语气。
Have they left already 他们(居然)已经走了？
3．现在完成时的基本句式
(1)肯定句：主语＋have/has＋动词的过去分词＋其他．
He has finished his homework.他已经完成家庭作业了。
(2)否定句：主语＋have/has＋______＋动词的过去分词＋其他．
She has not/hasn't finished reading the book.
她还没有读完那本书。
not
(3)一般疑问句：Have/Has＋主语＋动词的过去分词＋其他
Has she finished her homework yet
她已经完成家庭作业了吗？
肯定回答：
Yes, she has.是的，她完成了。
否定回答：
No, she hasn't.不，她还没完成。
(4)特殊疑问句：特殊疑问词＋have/has＋主语＋动词的过去分词＋其他？
How long has your father worked in the factory
你父亲在这家工厂工作多长时间了？
Use the words in brackets to complete the conversations.
4a
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.
I’ve just drunk some tea
Have you found it
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)
He has already left
did he leave
She has already seen the film
5. A: What do your parents think about our plan
B: I ___________________.
(not/ tell them/yet)
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
loves
has
read
finished
will be
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!
write
hasn’t read
will
Complete the chart with information about you and a friend.
4c
What books have
you already read
I’ve already read
Tom Sawyer and
Harry Potter.
What do you
think of them
Well, I think Harry Potter was exciting, but Tom Sawyer was a bit boring.
Exercise
1．Joe has already finished reading the book.(改为否定句)
Joe _______ ________ reading the book _____．
2．I have heard of the interesting story.(改为一般疑问句，
并作肯定回答)
—______ you ________ of the interesting story
—_____， I ______．
按要求完成下列各题
hasn't finished yet
Have heard
Yes have
3．Tim has taken a shower.(改为一般疑问句，并作否定回答)
—_____ Tim ________ a shower
—_____， he ________．
4．David watched the new TV play last night.(用already代替last night改写句子)
David _____ ________ ________ the new TV play.
Has taken
No hasn't
has already watched
5．We have collected lots of clothes for the children in the
poor area.(对画线部分提问)
_______ have you _____ for the children in the poor area
6．My aunt has lived in Shanghai for three years.(对画线部分提问)
_______ _____ your aunt ______ for three years
What done
Where has lived
(　　)7.2019·镇江 —The drama series The Thunder(《破冰行动》) hits screens these days.
—Oh, what a pity! I ________ any of them yet.
A．doesn't watch B．didn't watch
C．won't watch D．haven't watched
D
(　　)8.2019·福建 —Look! My mother ________ a new dress for me.
—Wow, it looks very nice on you.
A．is making B．has made
C．will make
B
GOOD JOB