资源简介

(共30张PPT)
Unit 5
Going on an exchange trip
Grammar
By the end of this lesson, we will be able to :
Objectives
understand the meaning, form and use of the present perfect tense and its time expressions.
掌握现在完成时态及时间标志词的意义、结构及运用
ask my friends about their experiences using “Have you ever ... ”
用句式 “Have you ever ... ” 询问他人的经历
talk about my own experiences by using “I have already...” or “I have never...”
用句式 “I have already...” 和 “I have never...” 谈论个人经历
By the end of this lesson, we will be able to :
Warm-up
I have ever visited ...
Your travel footprints
Where have you ever visited in China
Warm-up
I have ever visited ... , but I haven’t visited ... .
Beijing
Shanghai
Hangzhou
Sanya
Xiamen
Wenzhou
What have the British students done in Beijing
I've watched videos about the Great Wall before.
It's been a fantastic experience so far.
I've learnt a bit of tai chi.
The teachers have introduced us to Chinese painting as well.
It's quite different from what I've learnt in my art classes back home.
I haven't had much success yet.
I've made many new friends.
Explore the meaning
When to use present perfect tense（现在完成时态）
We use present perfect tense to talk about (past/present) events with a connection to the (past/present).
now
future
past
Explore the meaning
I've made many new friends.
I haven't had much success yet.
Let’s sum up the rules
The structure of the present perfect:
have / has (not) + past participle(过去分词)
I've made many new friends.
I haven't had much success yet.
It's been a fantastic experience so far.
1.What is past paticiple
(过去分词)？
2.How will the structure change
in different kinds of sentences
Explore the form
Positive form
Negative form
Read the email on page 73 and pay attention to the words in bold. Fill in the blanks.
do—done
be—_______
learn—_______
show —_______
practise—_______
tell—_______
try —_______
been
learnt
shown
practised
told
tried
Explore the form
Past participle of regular verbs
Base form
Simple past
Past participle
talk
talked
talked
live
lived
lived
study
studied
studied
stop
stopped
stopped
(1)一般动词，在词尾直接加“-ed ”
rules
(2)以不发音的“e”结尾，只在词尾加“d ”
(3)以“辅音字母 + y ”结尾，改 "y" 为 "i" ，再加“-ed”
(4)重读闭音节中，以“元音+辅音”结尾，先双写该辅音字母，再加“-ed”
Base form
Simple past
Past participle
do
did
done
go
went
gone
be
was/were
been
break
broke
broken
say
said
said
spend
spent
spent
Past participle of irregular verbs
p142 - 143
Remember
Practice
Statement—Yes/No question
Examples:I have been to the Great Wall.→ Have you been to the Great Wall
Eric has learnt a bit Chinese.→ Has Eric learnt a bit Chinese
I have been in Beijing for a week now.
I have just learnt how to play Go.
He has also shown me the medals he won.
I have done lots of fun things so far.
I have learnt some useful Chinese phrases.
Our teacher has told us that we will do some Chinese painting.
Wei has been to the UK.
Have you been in Beijing for a week now
Have you just learnt how to play Go
Has he shown you the medals he won
Have you done lots of fun things so far
Have you learnt some useful Chinese phrases
Has your teacher told you that you will do some Chinese painting
Has Wei been to the UK
Answers：
Yes, I/we/you/they have/haven’t.
No, he/she/it has/hasn’t.
Practice
Statement—Wh-question
Examples: Eric has learnt a bit Chinese.→ What has Eric learnt a bit Chinese
I have been in Beijing for a week now.
Wei has been to the UK.
How long have you been in Beijing
Where have you been
Wh-疑问词+have/has+主语+done...
Practice
1.How long has Eric been in Beijing
Eric has been in Beijing for a week now.
2.What is Eric’s host family like
They are friendly.
3.Who has taught him to play Go
His host brother, Wei.
4.What has Wei shown Eric
Wei has shown Eric the medals he won.
5.What have Eric and his British classmates learnt at the local school
They have learnt some useful Chinese phrases.
6.What will Eric learn next week
Chinese painting and tai chi.
Read Eric’s email again and answer the questions.
I'm excited to share my exchange trip to the UK! I (1) __________ (be) in the UK for two weeks already. So far, this trip (2) __________ (be) an amazing experience.
The school I’m studying at is great. I (3) __________ (make) lots of friends here already. The classes are really interesting, and I (4) __________ (learn) a lot about British culture. My English (5) __________ (improve) a lot too, and I’m learning new words every day.
There are lots of fun activities after school. We (6) __________ already __________(visit) several famous tourist spots, such as the Tower of London and Big Ben.
I (7) __________ (have) so much fun during this trip, and I don’t want it to end. This experience (8) __________ really __________(change) my life!
Practice
have been
has been
have made
have learnt
has improved
have
visited
have had
has
changed
Conclusion
Positive form
Negative form
Question form
肯定式：
否定式：
疑问句式：
主语+have / has + done...
主语+have / has not+done...
Have/has+主语+done...
Wh-疑问词+have/has+主语+done...
Warm-up
Are there mistakes in the following sentences Correct the mistakes.
(1) I have already finished my homework.
(2) Have you ever been to Paris yet
(3) She has never tried sushi already.
(4) Have they visited the museum yet
√
√
Explore the meaning
already: 用于肯定句，表示动作已经完成（通常用于句中或句末）。
例句： I have already read this book.
ever: 用于疑问句，询问是否曾经有过某种经历（通常用于句中）。
例句： Have you ever visited the Great Wall
never: 用于否定句，表示从未有过某种经历（通常用于句中）。
例句： I have never seen a dragon dance.
yet: 用于疑问句或否定句，表示动作尚未完成（通常用于句末）。
例句： Have you finished your work yet / I haven’t finished my work yet.
When to use these time expressions
The time adverbial
现在完成时中常见的时间状语
现在完成时不能和过去的时间状语连用。
I have read the book yesterday.
He hasn’t come last Monday.
I have never spoken to a foreigner in 1980.
Amy has gone with Lucy just now.
×
Rules
point/period
point/period
before/after
beginning/end
What’s the difference between a point in time and a period of time
5:30
five years
three minutes
2015
May 5
two months
a point in time
a period of time
a point in time
a point in time
a period of time
a period of time
since VS. for
since:自……以来
since+过去的时间点
He has stayed here since 5 o’clock yesterday.
since+时间段+ago
He has stayed here since 5 hours ago.
since+从句(动词用过去时)
She has taught English since she came here.
for:长达
for+时间段
He has kept the book for 2 weeks.
What’s the difference between since and for
Practice
have known
for
has been
since
hasn’t seen
for
I ________________ (be) in Australia for almost two weeks now, and I will fly home the day after tomorrow. This exchange trip ________________ (be) one of the most memorable experiences I have ever had!
My first week was great. On my first day at school, I ________________ (made) several new friends. Last Saturday, they ________________ (show) me around town. For example, they ________________ (take) me to the local zoo, and then we went to a café. We ________________ (spend) hours chatting and sharing our hobbies and dreams.
I’m staying with a great host family. They ________________ (treat) me like a part of the family. My host family are also very patient, and they are happy to answer all my questions. I ________________ (learn) so much about Australia from them!
The food here is great, and I ________________ (try) lots of tasty dishes. Yesterday, my host family ________________ (have) a barbecue in the garden. It was really fun, and they even ________________ (teach) me how to cook meat on the barbecue.
This exchange trip has truly broadened my horizons, and I feel much more confident and independent now. I hope I will have more chances to go on similar exchange trips in the future.
have been
showed
took
spent
have treated
have learnt
had
taught
has been
made
have tried
More practice
Grammar in use
·Have you ever been to Australia/ Canada/Japan/India ...
·Have you visited the Great Wall/...
·How long have you stayed/been in ...
·Have you ever eaten ...
…
Answer the questions with already, yet, ever, never, since and for.
Work in pairs. Think about your travelling experiences. Take turns asking and answering questions.
Interviewee
Interviewer
Conclusion
现在完成时表示过去发生的动作与现在有关，指过去的动作对现在造成的影响、结果等。
already, yet, ever, never, since, for...
现在完成时
肯定句：主语 + have/has + done + 其他
否定句：主语 + haven't/hasn't + done + 其他
一般疑问句：Have/Has + 主语 + done + …？
肯定答语：Yes, 主格代词 + have/has.
否定答语：No, 主格代词 + haven't/hasn't.
构成
定义
时间标志词
Key structure
1. Have you ever ....
2. I have already... . / I have never... .
Self-assessment
评价内容 评分（1–5）
1. 我能理解现在完成时的结构和意义。 1 2 3 4 5
2. 我能正确理解现在完成时和already, yet, ever, never, since, for等副词的连用。 1 2 3 4 5
3. 我能用现在完成时谈论经历。 1 2 3 4 5
Homework
基础作业
1. Read Eric’s email on Page 73 fluently.
2. Imagine you are Sarah. Please use the present perfect tense and write an email to your mum and tell her about your trip. Use the information in the passage on page 74 to help you.
拓展作业
Make a short video(3-5 minutes) to share your travelling experiences. Use the present perfect tense to describe what you have done, whom you have met, and your feeling. Then share with your classmates.
I have seen that the world is a book, and those who do not travel read only one page.
——Saint Augustine
Thank you !

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