Unit 8 Have you read Treasure Island yet? Section A GF-4c课件(共14张PPT) 人教新目标(Go for it)版八年级下册

(共14张PPT)
Unit8 Have you read Treasure Island yet
Section A GF-4c
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.
present perfect
（现在完成时）
一、现在完成时的用法:
（1）表示过去发生或完成的某一动作对现在造成的结果或影响。常与just，already，yet，never，ever，before，so far等时间状语连用。
你吃了午饭吗？
—Have you had lunch yet
是的, 我刚刚吃过。(现在我不饿了)
—Yes, I’ve just had it.

现在完成时P111
(2) 表示从过去某一时刻开始一直持续到现在的动作或状态。常带有for和since等表示一段时间的状语。
他自1981年就在这儿教书。(可能还要继续教)
He has taught here since 1981.
我有四年没见到她了。
I haven’t seen her for four years.
二、现在完成时的结构：has / have done (过去分词)
肯定句：Mary has already finished her homework.
否定句：
一般疑问句：
肯定回答：
否定回答：
4. 特殊疑问句：
Mary hasn’t finished her homework yet.
Has Mary finished her homework yet
Yes, she has.
No, she hasn’t.
What has Mary done yet
三、现在完成时的时间状语:
(1) 用副词already和yet。already一般用于肯定
句中, yet一般用于否定句和疑问句中。
We have already finished our homework.
我们已完成家庭作业了。
They haven’t finished their homework yet.
他们还没有完成家庭作业。
(2) 用ever和never。多用于否定或疑问句中,表示“曾经”或“从未”等。
—Have you ever been to the Great Wall
你曾经去过长城吗？
—No, I have never been to the Great Wall.
不, 我从未去过长城。
3) 用表示到说话为止的过去时间状语, 如just, before, up to now（到目前为止） 等。
I have seen her before, but I can not remember where.
我以前见过她, 但记不起在哪里见过。
三、动词过去分词的构成
动词的过去式的变化和过去分词的变化并不完全相同。
规则变化：
1.一般在动词词尾直接加ed。如：
pick → picked → picked; wish → wished → wished;
stay → stayed → stayed
2. 以不发音的e结尾的动词后面加d。如：
like → liked → liked;
hope → hoped → hoped;
phone → phoned → phoned
3. 以“辅音字母 + y”结尾的动词，变y为i，再加-ed。如：
study → studied → studied; hurry → hurried → hurried; reply → replied → replied
4. 词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。如：
stop → stopped → stopped;
clap → clapped → clapped
动词过去分词变化
2. 不规则变化（教材p136-137表格）
verb Past tense Past participle verb Past tense Past participle
be was/were forget forgot
become became make made
begin began spend spent
choose chose teach taught
cut cut think thought
eat ate write wrote
been
become
begun
chosen
cut
eaten
forgotten
made
spent
taught
thought
written
三、现在完成时 vs. 一般过去时
一般过去时 侧重陈述过去的动作或状态，动作已经结束和现在没有联系。 e.g. Nina taught us English last year.
现在完成时 强调过去的动作或状态对现在的影响； 强调过去发生的动作或状态持续到现在，并有可能继续。 e.g. Nina has taught us English for 8 years.
去年教我们，现在教没教不知道
教了我们八年，还在持续教
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.
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)
I’ve just drunk some tea.
Have you found it yet
He has already left
did he leave
She has already seen the film
haven’t told them yet
see-saw-seen
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
can’t wait to 迫不及待的要去做某事
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.
Experiences You Your friend Comments(评论)
Books I have already read
Movies I have already seen
Songs I have already heard
Complete the chart with information about you and a friend.
Recently, I have discussed something about books, movies and songs with my friend.
For books, I have already read… I think it’s… My friend has already read… He / She thinks it’s…
For movies, I have watched a movie called… I think it’s… My friend has watched a movie named… and he / she thinks it’s…
For songs, I have heard a song called… I think it’s… My friend has heard a song named… and he / she thinks it’s…
4c