(共30张PPT)
Grammar
Unit 1 Past and present
学 习 目 标
掌握本课节新单词及短语:yet, recently, past
1
3
理解并运用常和现在完成时连用的表示时间的词汇。
掌握现在完成时的基本结构、用法和动词的过去分词变化规则;
能够在语境中正确运用现在完成时。
2
课 堂 导 入
Watch a video and pay attention to what they said.
1. I’ve lived here since I was born.
2. Have you ever moved house
3. …and we’ve lived in this area since then.
4. Has the town changed a lot over the years
Now the government has turned part of the town centre into a new park.
6. However, most of my old friends have moved away.
It has become impossible for us to see each other as often as before.
Sentences with the present perfect tense in the video.
I've just eaten it.
You've changed.
You’ve eaten my food
Have you seen my food
Can you find more sentences with "have/ has+ done" in Welcome to the unit
Pre-task: More examples
When do we use the present perfect tense
While-task 1: Learn by yourself
Ⅰ. We use the present perfect tense to talk about an action
that started in the past and continues to the present.
表示过去开始,一直持续到现在的动作。
for: 后接一段时间,如:for three years,
for a long time…
I have known you for a long time.
since:自从… …,后接过去的时间点/动作。
since last year, since I came here,…
I have not seen him since we met last week.
常用的时间状语有:
A
B
I _____________ English ____________________.
2.我已经学了10多年的英语。
have learned
for over ten years
1.我认识李雷三年了.
I’ve known Li Lei _______________.
=I’ve known Li Lei______________________.
for three years
since three years ago
Practice: Finish the sentences
Ⅱ. We use the present perfect tense to talk about an
action that happened in the past and has a connection with
the present.
表示过去发生的或已完成的动作对现在造成的影响或结果。
Past
present
Eddie has eaten Millie’s food.
1. I have just opened the door.
(The door is not closed now.)
2. Jack has already finished his homework.
(Jack is free now. )
Look at my bowl. Who _______ my dumplings That’s too bad!
2. Jack ________ home. Don’t worry.
3. I ________ the key to the door, so I have to wait
till Mum comes back.
B. has eaten
A. ate
A. arrived
B. has just arrived
A. have lost
B. lose
Practice: Choose the correct ones.
B
B
A
(1)already “已经”,放在肯定句句中或句末;
(2)yet放在疑问句句尾时,表示“已经”;
放在否定句句尾时,表示“还(没,不)”
(3)ever “曾经”,用于肯定句、疑问句或否定句中;
(4)never “从来没有”,表示否定意义。
(5) just “刚刚”,用于陈述句中;
(6) recently “近来”,可用于句首、句中或句末。
常用的时间状语有:
(1)I have _____ come back from the supermarket. (for, just, since)
(2) I have ___________ been to Chengdu. (for, never, yet)
(3) He has worked there ______he left school. (already, just, since)
(4) She has known Sam______ nine years. (for, never, since)
(5) Have you _____ ridden a horse (ever, for, yet)
just
never
since
for
ever
Fill in the blanks with the proper words given.
Ⅲ.We also use the present perfect tense to talk about how
many times an action has happened till now.
现在完成时还可以谈论到目前为止动作发生的次数。
(常用的时间状语有:never, twice, three times, many times等)
Eddie and Millie have read Harry Potter many times.
埃迪和米莉读过《哈利波特》这本书许多次了。
Millie has been to Disneyland twice.
米莉去过迪斯尼乐园两次了。
Basic structure
肯定句:主语+have/has + p.p
否定句:主语+have/has+ not +p.p.
have not=haven’t
has not =hasn’t
一般疑问句:Have/ Has + 主语 + p.p.?
---______ Max ______ in this city all his life?
3. Max has lived in this city all his life.(改为一般疑问句
并作回答)
1.Nick忘了Judy的生日。(翻译句子)
Nick _______ _________Judy’s birthday.
Practice:
---Yes, he has./ No, he hasn’t.
has
forgotten
2. Nick has forgotten Judy’s birthday. (改为否定句)
Nick ____ ____ _________Judy’s birthday.
Has
forgotten
not
has
lived
Most verbs + ed wash→washed
Verbs ending in -e + d live→lived
Verbs ending in a consonant + y - y + ied study→studied
Short verbs ending in a vowel + a consonant double the consonant + ed stop→stopped
Learn the rules
By changing the letters.
不规则变化
Type original p.t p.p
cost cost cost
come came come
run ran run
get got got
catch caught caught
see saw seen
forget forgot forgotten
drink drank drunk
grow grew grown
eat ate eaten
ABB
AAA
ABC
ABA
By the spelling difference of original, p.t and p.p.
Turn to pages 122 and 123 for more changes of irregular verbs.
donate
catch
eat
see
keep
have
come
stop
live
am/is
build
put
Task one:Play a game(说出所给动词的过去分词)
1 borrow
2 hope
3 make
4 get
5 plan
6 cry
7 send
8 watch
9 say
10 grow
11 hit
12 enjoy
1 borrow
2 hope
3 make
4 get
5 plan
6 cry
borrowed
hoped
made
got
planned
cried
sent
watched
said
grown
hit
enjoyed
Finish Part A on page 14
1. They __________ (finish) their homework already.
2. John _____never _____ (visit) China.
3. Mr. Li _____________(repair) over ten bicycles since Monday.
4. We_____________ (not see) each other for years.
5. My parents ______________ (not come) back yet.
6. Our teacher ___________ (teach) us a lot about the history of China.
have finished
has visited
has repaired
haven’t seen
has taught
haven’t come
Finish Part B on page 14
Millie: ________ you ________ (see) any films recently, Sandy
Sandy: No, I haven’t. What about you
Millie: Well, I ________ (see) one last Saturday.
Sandy: What is it about
Millie: It’s about the changes in Beijing over the past century.
From this film, I ___________ (learn) more about
Beijing’s past and present.
Sandy: Oh, I think I ___________ (hear) about the film. Do you
plan to see it again
Millie: Yes, I’d like to.
Have
seen
saw
have heard
have learnt
Finish Part C on page 14
I.写出下列词的过去分词。
1. arrive________ 2. become________ 3. begin_________
4. study________ 5. build__________ 6. stop__________
7. cost_________ 8. meet__________ 9. enjoy_________
10. eat_________ 11. plan__________12. fall__________
13. fly_________14. think__________15. know________
课 堂 达 标
arrived
become
began
studied
built
stopped
cost
met
enjoyed
eaten
planned
fallen
flown
thought
known
II.用括号中所给动词的现在完成时填空。
1. Recently thousands of fans _________ (meet) in Los Angeles to
famous basketball players.
2. I _______________ (not finish) the work yet.
3. _____ their government _______ (take) action to stop the
epidemic yet
4. I ____________ (not hear) from my brother for a long time.
5. Many cinemas ___________ (be) closed since January 25.
have met
haven’t finished
Has
taken
haven’t heard
have been
III.用括号内所给动词适当形式填空。
Recently we __________(read) lots of news about the novel coronavirus (新型冠状病毒). The Chinese government has taken active actions to protect its people as well as those around the world. However, there ___________ (be) many more cases outside China since January 13. WHO experts _____ __________(discuss) the issue with the Chinese side. They say our government _____ already _____ (do) a great job in fighting against the novel coronavirus. China will continue working with WHO. We are sure China is able to control the outbreak. Now the situation _____ _____(be) under control. As middle school students, we should try our best to protect ourselves. The best way is to stay at home and wash our hands often. If we have to go out, we must wear a mask. Remember we are the one who can fill the world with sunshine.
have read
have been
have
discussed
has
done
has
been
1. Review the summary on present perfect tense.
2. Finish the exercises on the workbook.
Homework
Thank you !