(共20张PPT)
Unit 8 Have you read Treasure Island yet
Section A Grammar Focus-4c
公开课
一、语言能力
能够在多种语境中，通过观察归纳、语境中运用等方式，正确理解和使
用现在完成时的意义和功能，叙述已经完成的事情，并与同伴交流和谈
论各自所看过的书、电影和听过的歌曲
二、学习能力
能在学习活动中积极与他人合作，共同完成学习任务；能在学习过程中
积极思考，主动探究，发现并尝试使用多种策略解决语言学习中的问题，
积极进行拓展性运用
三、思维品质
能够在老师的引导下，通过观察、讨论、归纳等课堂活动，探究现在完
成时的语言规律，提高思维的逻辑性和深刻性，加强语言表达的准确性
四、文化意识
能够通过谈论和了解看过的书、电影和听过的歌曲等，提高对英语语言
文化的兴趣，增强文学素养和人文素养
Enjoy the following song to finish these sentences
We have_______each other since we were nine or ten.
We have _______hills and trees.
known
climbed
现在完成时
Have you read Little Woman yet 你读过小妇人吗？ Yes, I have. / No, I haven’t.
Has Tina read Treasure Island yet Tina读过金银岛吗？ Yes, she has. She thinks it’s fantastic.是的，读过，她认为极其了不起。
Have you decided which book to write about yet 你决定写哪本书了吗？ Yes, I have. I’ve already finished reading it. It was really good.
是的，我已经读完了。
找出现在完成时的结构，并圈出动词的过去分词形式。
(______) read--_______--________.
阅读
read
read
(______) decide--_________--________.
决定
decided
decided
(______) finish--_________--________.
完成
finished
finished
变化规则是什么？
语法探究一：动词过去分词形式的变化规则
动词过去分词的规则变化：________________________
stay → _______ → _______
work → _______ → _______
taste → _______ → _______
like → _______ → _______
study → _______ → _______
copy → _______ → _______
stop → _______ → _______
plan → _______ → _______
stayed
stayed
worked
worked
tasted
tasted
liked
liked
studied
studied
copied
copied
stopped
stopped
1.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
planned
planned
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
动词过去分词形式的不规则变化
let → _______ → _______
cut → _______ → _______
read → _______ → _______
feel → _______ → _______
keep → _______ → _______
sleep → _______ → _______
let
let
cut
cut
read
read
felt
felt
kept
kept
slept
slept
以不变应万变.
动词中间有俩e，
去掉一个（ e ），后加t
动词过去分词形式的不规则变化
lend → _______ → _______
build → _______ → _______
send → _______ → _______
buy → _______ → _______
bring → _______ → _______
catch → _______ → _______
teach → _______ → _______
see → _______ → _______
lent
lent
built
built
动词字母d变t.
变为以-ought或-aught结尾.
bought
bought
brought
brought
sent
sent
caught
caught
taught
taught
saw
seen
总结：动词过去分词的规则变化
1.与该动词的过去式相同
2.不规则情况：以不变应万变.
动词中间有俩e，去掉一个（ e ），后加t
动词字母d变t.
变为以-ought或-aught结尾.
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.
语法探究二：现在完成时的结构
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已经,yet仍，还
语法探究三：现在完成时的用法
I have already read Little Women .
past
present（now）
future
动作或状态发生在过去，但对现在造成影响或产生结果
现在完成时定义
现在完成时定义
She has lived here for five years.
past
present（now）
future
表示该动作从过去持续到现在，可能还会继续持续下去
常和 just（刚刚），already（已经），yet（还，仍然），ever（曾经），never（从未），before（以前），so far（到目前为止）等连用。
— Have you had your breakfast yet
— Yes, I have. I've just had it.
— Have you ever heard this song
— No. I've never heard it before.
Julia has collected over 100 beautiful hair clips so far.
现在完成时标志词
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. —When ______ Tom ______ (leave) his office
—He ______ about five minutes ago.
2. I ______ the book club last week and I ______ two books already.
A. join; read B. joined; read
C. joined; have read D. joined; has read
did leave
left
小试牛刀
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
Use the words in brackets to complete the conversations.
drink-drank-drunk
find-found-found
leave-left-left
see-saw-seen
tell-told-told
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!
Fill in the blanks with the correct forms of the words in brackets.
loves
be interested in+n./代/Ving 对...感兴趣
提示：确认时间标志，用对时态结构！
read
will be
finished
will write
hasn’t read
can’t help doing sth 忍不住做某事
can’t wait to do sth 迫不及待地做某事
4b
has
4c
Complete the chart with information about you and a friend.
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
Report like this:
I have already read…,it’s very interesting;
My friend has already read…,it’s very boring.
I’ve already read the book____________.
I think it’s ____________.
I’ve already seen the movie ____________.
I think it’s ____________.
I’ve already heard the song____________.
I think it’s ____________.
My friend has already read the book______.
He / She thinks it’s ____________.
He / She has already seen the movie _______.
He / She thinks it’s ____________.
He / She has already heard the song_______.
He / She thinks it’s ____________.
Show your report !
Summary
Thank you for listening
