人教版（2019）选择性必修第三册Unit 4 Adversity and Courage Discover useful structures 课件(共22张PPT)

(共22张PPT)
Unit 4 Adversity and Courage
Period 3
the Present Perfect Continuous Tense
A:Hi, Peter, I haven’t seen you for months. What have you been doing lately
B:Studying.
A:Studying what
B:Japanese.
A:Oh Really But I have never heard you practicing it.
B:I have been studying Japanese for five years.
A:That’s great! Then you can be my interpreter when I go to Japan.
B:No problem!
A:Oh! I almost forgot! I have a gift for you!
B:Thank you so much for this nice walkman. I’ve been wanting it for a long time.
3.表示从过去某时开始持续到现在，但不再继续下去的事情。
Dialogue
1.表示“最近”一直在从事的工作或活动。
2.表示动作从过去某时开始一直持续到现在，并可能仍在继续的事情。
Role play
Lead-in:
A:Where is Jane Is she out
B:No, she has been sitting in that room since 8’clock this morning.
A:What’s she doing
B:She has been thinking.
A:Thinking what
B:Which dress she should wear today.
4.表示动作从过去某时开始一直持续到现在(同2）。
Dialogue
past
future
now
did
do
have/has been doing
do
现在完成进行时
1)现在完成进行时表示一个由过去某一时间开始一直延续到现在的动作，这动作有可能刚刚结束，也可能还要进行下去
have/has done
be doing
have/has been doing
STEP 1
I (read) this book for two hours, but I haven’t finished it.
12:10
now
have been reading
STEP 1
She _________________ (work) like that.
has been working
STEP 1
Oh, you have come at last! I have been waiting for you for two hours.
Here you are!
Sorry. i'm late.
Function 1
Oh, you have come at last! I have been waiting for you for two hours.
Here you are!
Sorry. i'm late.
past
future
now
wait
STEP2
Function 2
Do you know
CCTV 9
Yes, it has been broadcasting English programs since 1984.
Do you know
CCTV 9
Yes, it has been broadcasting English programs since 1984.
1984
future
now
broadcast
broadcast
STEP2
Function 3
Gosh, is anybody in it I have been knocking at the door for half an hour!
Gosh, is anybody in it I have been knocking at the door for half an hour!
past
future
now
knock
knock
knock
STEP2
① The Chinese government 　　　　　　　　　 (do) research into vaccine
against EHF for months，and recently many have received the first doses.
② The dollar 　　　　　　　　　　 (climb) steadily all week.
③ I 　　　　　　　　　　 (wait) for an hour and a half.
④ Jim 　　　　　　　　　　 (phone) Jenny every night for the past week.
⑤—You are a great swimmer.
—Thanks.It’s because I 　　　　　　　　　　 (practise)a lot these days.
has been doing
has been climbing
have been waiting
has been phoning
have been practising
单句语法填空
Compare：
现在完成进行时&现在完成时&进行时
STEP 3
past
future
now
did
do
have done
past
future
now
did
do
have been doing
do
现在完成时
现在完成进行时
STEP 3
Tom finished paiting
the door.
John is still paiting
the door.
Which door will you choose to open Why
I have been painting the
door red.
I have painted the door green.
Discussion 1
Tom
John
have/ has been doing
VS. have/ has done
I have been painting the
door red.
I have painted the door green.
STEP 3
Discussion 2
have/ has been doing
VS. am/ is/ are doing
from 9:00 to now
now
Tom
John
Tom keeps sleeping from past to now.
John is palying at present.
STEP 3
What’s the difference between two lovely babies
past
future
now
do
past
future
now
do
have/has been doing
do
present perfect continuous tense
present continuous tense
STEP 3
Be doing
Who has eaten my dinner
Who has been eating my dinner
(已吃光)
(一直在吃，还有剩下的)
1.现在完成时着重结果；
现在完成进行时强调动作的
持续性和未完成性。
SUMMARY
Recently Jack has been doing his work regularly.
Recently Jack has done his work regularly.
(陈述事实)
(赞许)
2.现在完成进行时含有明显的感彩，
现在完成时往往只说明一个事实，一种影响或结果，没有感彩。
SUMMARY

单句改错
1.All these years they are contributing articles to our magazine.
2. I have been drinking five cups of coffee this afternoon.
3. What have you been doing before you left Oxford
have been
drunk
had
before left
now
past
did
had been doing
had been
doing
ExERCISE
用所给词的适当形式填空。
①Although many measures 　have been taken　 （take）, the world’s economy is still going down.
②You should go to bed. You 　have been watchin（watch） TV for 5 hours.
③I 　have been cleaning　 （clean） the windows since this morning.
④Sorry, but Mr Smith 　has left　 （leave） for Beijing.
⑤The little boy is dirty from head to foot because he 　has been playing　 （play） in the mud all the morning.
⑥By the time he realizes he 　has walked　 （walk） into a trap, it’ll be too late for him to do anything about it.
have been taken　
have been watching　
have been cleaning　
has left　
has been playing　
has walked　
1.The dog started to bark about two hours ago. I really hope it will stop soon.
The dog has been barking for about two hours. I really hope it will stop soon.
2. Steve started to play rugby at the age of eight. Now he has become a professional player.
Steve has been playing rugby since eight years old. Now he has become a professional player.
Read each situation and rewrite each sentence using the present perfect
continuous tense.（课文P41Ex2）
3. Timmy is holding a table tennis bat and his short hair is damp with sweat. He looks a little tired after playing table tennis for two hours.
4. Diane hasn’t got much sleep this week. She looks terrible today.
5. I tried to phone you this morning. I must have tried a dozen times before I caught you here.
Timmy is holding a table tennis bat and his short hair is damp with sweat. He has been playing tennis for two hours and looks a little tired.
Diane hasn’t been sleeping well this week. She looks terrible today.
I have been trying to phone you this morning. I must have tried a dozen times before I caught you here. .
感谢观看