Unit 8 Have you read Treasure Island yet Section A 4a-4c课件(共21张PPT) 人教版八年级英语下册

(共21张PPT)
Have you read Treasure Island yet
Unit 8
Section A3
(4a-4c)
Objectives
1. To learn the present perfect tense with already
and yet
-- Have you decided which book to write about yet
-- Yes, I have. I’ve already finished reading it. It was really good.
2. To learn the new words: fiction, technology,
French…
fiction
science fiction
technology
French
n. 小说
科幻小说
n. 科技；工艺
n. 法语
Words and expressions
现在完成时(一)
1．现在完成时的构成
现在完成时由“助动词have/has＋动词的过去分词”构成。规则动词的过去分词构成与动词过去式相同，如：finish—finished；不规则动词需要特殊记忆。
2．现在完成时的句型结构
①肯定句：主语＋have/has＋过去分词＋其他．
②否定句：主语＋have/has＋not＋过去分词＋其他．
③一般疑问句：Have/Has＋主语＋过去分词＋其他？
肯定回答：Yes，主语＋have/has.　否定回答：No，主语＋haven't/hasn't.
我完成了/还没有完成家庭作业
I have/haven't finished my homework.
你已经做完这项工作了吗？
—Have you finished the work？
是的，我已经做完了。/不，我还没有做完。
—Yes，I have./No，I haven't.
3．现在完成时的用法
①现在完成时通常表示在说话之前已经完成的动作或存在的状态。说话人强调的是该动作或状态对现在造成的结果或影响。
eg：My daughter has just gone out.
我的女儿刚出去。
I'm sure we've met before.
我肯定我们以前见过面。
I didn't find my ID card.I think I have lost it.
我没找到我的身份证。我想我已经遗失了它。
②表示持续到现在的动作或状态，往往和包括现在在内的表示一段时间的状语连用，如recently，already，just，lately，for...，since...，yet等。
eg：I haven't heard from her these days.
这些日子我没有收到她的信。
They have been away for two years.
他们离开已经两年了。
I have lived here since I was five.
自我五岁起我就住在这里了。
4．现在完成时的标志词
现在完成时常与already，yet，never，ever，before，just等连用。其中，already一般用于肯定句，yet常用于否定句和疑问句中。含有already的肯定句变否定句或疑问句时，要将already变为yet，并置于句末。
eg：The rain has already stopped.
雨已经停了。
→The rain hasn't stopped yet.
雨还没停。(否定句)
→Has the rain stopped yet？
雨已经停了吗？(疑问句)
规则变化：
Infinitive 动词原形 Past Tense 过去式 变化规则
look look look
move move move
carry carr carr
stop stop stop
一般动词，加ed
以不发音的e结尾的动词，加d
以“辅音+y”结尾的动词，变y为i，再加ed
以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加ed
动词过去分词的变化规则示例
ed
ed
d
d
Past Participle
过去分词
ed
ed
p
p
ed
y
i
ed
y
i
现在完成时：
① She has already cleaned the floor.
② She cleaned the floor yesterday.
现在完成时与一般过去时
一、构成不同
她已经打扫了地板。
她昨天打扫了地板。
一般过去时：
主语 + have/has + 过去分词
主语 + 动词过去式
I have already finished my homework. I finished it an hour ago.
现在完成时表示该事件是在现在之前的某一个时间里发生的，重点在于强调已完成动作对现在的影响。
二、用法不同
一般过去时表示在过去某一具体时间发生的事情。
我已经完成家庭作业了，一小时前完成的。
现在完成时可以和表示延续的时间状语连用。表示持续动作或状态的动词多是延续性动词。
① I haven’t seen her these days.
② I’ve been at this school
for over two years.
② Did you watch that film last week
③ She came back yesterday.
三、时间状语不同
我这些天没见过她。
你上周看那部电影了吗？
她是昨天回来的。
一般过去时常与表过去的具体的时间状语连用。
我已经在这个学校呆了两年多了。
当 A 问对方把自己的书放在何处时，他强调的是现在找不到了，故用现在完成时。但B的回答只是说明当时放的位置，故用一般过去时。
A: Where have you put my book I can't find it.
B: I put it on your desk yesterday.
当没有明确的过去时间状语时，判断该用现在完成时还是一般过去时的标准是：看该行为是否对现在有影响，即该句所强调的是什么。
A: Would you like to go and see the film with me tonight
B: Sorry, I have seen it already.
此时的现在完成时表示对结果的强调：“电影看过了，所以不想再看了”。
二、用所给单词的适当形式填空。
6．We ___________ (hear) of that place but we haven't been there.
7．I'm so glad that I have ________ (finish) nearly half of the test now.
8．My cousin _____________ (not decide) where to go on holiday yet.
9．—Does Mr. White still live here
—No，he has ________ (move) to Paris already.
10．William ___________ (write) six books already，and all of them are bestsellers.
have heard
finished
hasn't decided
moved
has written
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
P60
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)
He has already left
did he leave
She has already seen the film
haven’t told them yet
Have you found it yet
Check your answers.
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
P60
三、语法选择。
Once upon a time，there was a man in China called Lord Ye.__11__ in the town knew he loved dragons.He had beautiful __12__ of dragons everywhere in his house.He had dragons carved on the stone floors.There __13__ even dragons painted on the __14__ tables and chairs，and on his cups and bowls.Also，dragons __15__ on his favorite silk robe (长袍).
One day，the dragon in heaven heard of Lord Ye and his love for dragons.The dragon was __16__moved that he decided to thank Lord Ye，so the dragon left heaven __17__ a visit to him.
( )11.A.Every one　B．Everyone　　C．No one
( )12.A.paint B．paints C．paintings
( )13.A.were B．had C．have been
( )14.A.wood's B．wooden C．woods'
( )15.A.were finding B．were found C．find
( )16.A.so B．even C．such
( )17.A.paid B．to pay C．paying
It was a dark stormy night when the dragon pulled __18__ through Lord Ye's window and into his house.He saw all the beautiful dragon designs and thought Lord Ye would be pleased to see him.__19__，the moment Lord Ye woke up and saw him，he was scared and ran away into the night!
Later，people in the town knew about Lord Ye's story.They realized that Lord Ye was not a brave man with a true love for dragons.This is a story __20__ makes fun of those who act as if they liked something very much，but actually don't value or care about it too much in their hearts.
( )18.A.he B．him C．himself
( )19.A.And B．However C．Or
( )20.A.where B．what C．which
三、语法选择。
Once upon a time，there was a man in China called Lord Ye.__11__ in the town knew he loved dragons.He had beautiful __12__ of dragons everywhere in his house.He had dragons carved on the stone floors.There __13__ even dragons painted on the __14__ tables and chairs，and on his cups and bowls.Also，dragons __15__ on his favorite silk robe (长袍).
One day，the dragon in heaven heard of Lord Ye and his love for dragons.The dragon was __16__moved that he decided to thank Lord Ye，so the dragon left heaven __17__ a visit to him.
( )11.A.Every one　B．Everyone　　C．No one
( )12.A.paint B．paints C．paintings
( )13.A.were B．had C．have been
( )14.A.wood's B．wooden C．woods'
( )15.A.were finding B．were found C．find
( )16.A.so B．even C．such
( )17.A.paid B．to pay C．paying
B
C
A
B
C
A
B
It was a dark stormy night when the dragon pulled __18__ through Lord Ye's window and into his house.He saw all the beautiful dragon designs and thought Lord Ye would be pleased to see him.__19__，the moment Lord Ye woke up and saw him，he was scared and ran away into the night!
Later，people in the town knew about Lord Ye's story.They realized that Lord Ye was not a brave man with a true love for dragons.This is a story __20__ makes fun of those who act as if they liked something very much，but actually don't value or care about it too much in their hearts.
( )18.A.he B．him C．himself
( )19.A.And B．However C．Or
( )20.A.where B．what C．which
C
B
C