课件33张PPT。Unit 8 Have you read Treasure Island yet? (Grammar Focus—4c) Present Perfect Tense现在完成时 Have you ever seen this movie?I haven’t seen it yet.But it has been on for many days. And I have been interested in it since two months ago.
Have you ever seen this movie?I haven’t seen it yet.But it has been on for many days.
And I have been interested in it since two months ago.
3.现在完成时的用法2.一般疑问句及否定句的结构1.现在完成时的构成4. 时间状语2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语主语+havehas+动词过去分词助动词：talk ---
like ---
stop ---
study --- havehas动词过去分词变化规则：talkedlikedstudiedstopped2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语Have/Has + 主语 + 动词过去分词疑问式：I have washed my clothes.Have you washed your clothes?A: Have you finished your homework?
B: Yes, I have .
No, I haven’t. eat (eaten) potato chipssee (seen) a tiger 2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语Have/Has + 主语 + 动词过去分词否定式:
主语 + have/has + not + 动词过去分词. 疑问式：We have visited the museum. (改为一般疑问句)
2)They have seen the film. (改为否定句)
3)He has returned the book. (对划线部分提问)
4)Jenny has had her lunch for three days. (改为一般疑问句并做否定回答)
Have you visited the museum?have not=haven’thas not=hasn’t2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语Have/Has + 主语 + 动词过去分词否定式:
主语 + have/has + not + 动词过去分词. 疑问式：We have visited the museum. (改为一般疑问句)
They have seen the film. (改为否定句)
3)He has returned the book. (对划线部分提问)
4)Jenny has had her lunch for three days. (改为一般疑问句并做否定回答)
They haven’t seen the film.2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语Have/Has + 主语 + 动词过去分词否定式:
主语 + have/has + not + 动词过去分词. 疑问式：We have visited the museum. (改为一般疑问句)
2) They have seen the film. (改为否定句)
He has returned the book. (对划线部分提问)
4)Jenny has had her lunch for three days. (改为一般疑问句并做否定回答)
What has he returned?2.一般疑问句及否定句的结构2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语Have/Has + 主语 + 动词过去分词否定式:
主语 + have/has + not + 动词过去分词. 疑问式：We have visited the museum. (改为一般疑问句)
2)They have seen the film. (改为否定句)
3)He has returned the book. (对划线部分提问)
4)Jenny has had her coat for three days. (改为一般疑问句并做否定回答)
Has Jenny had her coat for three days?No,she hasn’t.2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语present(now)futurepastMum, I have already(已经) cleaned them.John, clean your teeth please.2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语1)过去发生的事情对现在造成的影响或结果。2)表示从过去一直持续到现在的动作或状态。Someone has broken the door.
(窗户现在是坏的)
I have already lost the key.
(我现在没有钥匙)
I haven’t read that book yet .
(不了解书的内容)
I have just cleaned my hands.
(手是干净的)2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语She has learned English for 5 years.
He has lived in Beijing since ( 自从)he was born .
Have you stayed here since ( 自从) 3 o’clock?2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语for+时间段since+Mr. Brown has had his TV ________ 15 years.
I’ve taken driving lessons _________ last month.
My sister has had her cell phone ________ a month .
My friends haven’t visited me ___________ my birthday.
We haven’t used our car ______ a long time .
She hasn’t had a good cup of coffee _______years.
Tom has worn glasses _________ he was 7 years old. forforforforsincesincesince时间点句子2.一般疑问句及否定句的结构3.现在完成时的用法1.现在完成时的构成4. 时间状语for+时间段since+时间点句子already(已经)
yet(已经)
just(刚刚)
ever(曾经)
never(从来没有）
before（从前）–—肯定句中
——否定，疑问句末——肯定句中
—肯定、疑问句中
—句中—句末3.现在完成时的用法2.一般疑问句及否定句的结构1.现在完成时的构成4. 时间状语Have you ever seen this movie?I haven’t seen it yet.But it has been on for many days. And I have been interested in it since two months ago.
eat- see-
read- keep-
have- be-
leave- make-
go- meet-
come- write-
tell- buy-
find- build- builtfoundtoldcomegonelefthadreadeatenboughtwrittenmetmadebeenkeptseen4a Use the words in brackets to
complete the conversations.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 have just drunk
some teaHave you found it4a3. 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 leftdid he leaveShe has already seen the film4a5. A: What do your parents think about
our plan?
B: I ___________________. (not/ tell
them/yet)haven’t told them yet4b Fill in the blanks with the correct
forms of the words in brackets. 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.loveshasreadwill be4bShe _______ (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!finishedwill writehasn’t readSummary.回顾一下本节课的重点内容。
1.现在完成时的结构是什么？
2.动词变为过去分词的规则有几条？
3.现在完成时的用法是什么？
4.本节课中我们涉及到了哪 些与现在完成时连用的时间状语及副词。1.To finish the exercises on your paper.
2.To remember the irregular past participle of some verbs.
Homework
1.?I ____________(wait) for him for two hours . I am very angry .
2.??He _________ (be) a doctor since he was twenty .
3.??The film __________ (be) on for fifteen minutes .
4.??____ you ever ____ (read) that book before ?
5.??____ you ever ____ (try) to change her ?
6.? No one ____________ (arrive) here yet .
7.??______ the bus _____ (leave) yet ?
8.??I _____________ (not talk) to him yet .
Haven’t talkedHas lefthas arrivedHave triedHave readhas beenhas beenhave waited用所给动词的适当形式填空9.?I____?already?______?(see)?the?film.?I?______?(see)?it?
last?week.?
10.?Look!?The?monkey?__________?(climb)?the?tree.
11.?My?father?____?just?_____?(come)?back?from?work.?He?
is?tired?now.?
12.??The?students?____________?(read)?English?when?the?teacher?came?in.?
13.?I?______________?(work)?here?since?I?______?(move)?here?in?1999.
14.?So?far?I?_______________(make)?quite?a?few?friends?here.
15.?How?long?_______?the?Wangs?_______(stay)?here???For?
two?weeks.?
16.?I?________?just?___________?(finish)?my?homework.?
17.?He?________?(go)?to?school?on?foot?every?day.?
18.______?you?______?(find)?your?science?book?yet??is climbingwere readingmovedhave workedhave madegoeshave stayedhave finishedHave foundsawhave seenhas come
1. She has done her homework. (改否定句)
2. She has already told us the news. (改否定句)
3. The rain has already stopped. (改一般疑问句)
4. I have waited here for two hours. (划线提问)
5.He has lived in ShangHai since he left Beijing. (划线提问)
6. They have bought a new car, ______ __________? (反义疑问句)
7. She has learned French since 2002. (同意句)
She has learned French ______ 2 years.
She has learned French _______ 2 years __________. She hasn’t done her homework. She hasn’t told us the news yet. Has the rain stopped yet?How long have you waited here ?haven’t they forsinceagoWhere has he lived since he left Beijing?按要求改变句子。Translate the following sentences. 你已经找到你的书了吗? (find-found)
他们在这个城市建了许多房子. (build-built)
Judy还没到达. (arrive-arrived)
你吃过早饭了吗? (have-had)
她刚刚离开. (leave-left)
Have you found your book yet?They have built many buildings in this city. Judy hasn’t arrived yet. Have you had breakfast ?She has just left. Thank you for listening!
