人教版(2019)选择性必修 第三册Unit 4 Adversity and Courage Discovering useful structures 课件(共20张PPT)

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名称 人教版(2019)选择性必修 第三册Unit 4 Adversity and Courage Discovering useful structures 课件(共20张PPT)
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版本资源 人教版(2019)
科目 英语
更新时间 2024-05-22 16:42:21

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(共20张PPT)
新人教版选择性必修三Unit4
Discover useful structures
The present perfect continuous tense
1. 现在完成进行时的用法
2. 现在完成进行时与现在完
成时的区别
3. 巩固练习
目 录
CONTENTS
01
现在完成进行时的用法
翻译以下句子,补全方框下的小题。
1) ...this is the adventure that I have been dreaming of.
2) We are now camped on the ice and we have been managing to survive...
3) We have been struggling for days,but things on Elephant Island are going from bad to worse.
以上句子中划线部分,用的是 ,
其构成为: .
现在完成进行时
have/has+been+doing
现在完成进行时的用法
1. 表示过去发生并持续到现在的动作,强调动作不间断。
1) How long have you been learning English
你学习英语多久了?
2) Tom has been playing the online games for more than twenty hours.
汤姆玩网游已经超过二十个小时了。
3) I've been writing letters all this morning.
整个上午,我一直在写信。
4) Tom has been painting the wall for three hours.
汤姆刷墙刷了三个小时。
2. 表示到目前为止的一段时间内重复进行的活动
1) The old man has been repairing cars for thirty years.
这个老人修汽车修了三十年了。
2) Jack has been practising Tai Chi for more than a year.
杰克练太极一年多了。
3) He has been saying for a year that he will study abroad.
整整一年他都在说要出国学习。
4) Alice has been looking for a job for three months.
三个月来,爱丽丝一直在找工作。
1) His eyes are red. He has been working too hard recently.
他的眼睛红了,准是他最近工作太辛苦了。
2) —I have got a headache.
— No wonder. You have been working in front of that computer too long.
我头痛。不足为奇。你在那台电脑前工作太久了。
3. 表示根据直接或间接的证据而得出结论
4. 表达某种感彩(喜欢或厌恶)
We've been looking forward to our summer vacation.
我们一直盼望着暑假。
02
现在完成进行时与
现在完成时的区别
1. 现在完成进行时可以表示动作的重复,而现在完成时一般不表示重复性。
1) Have you been meeting him recently
你最近常和他见面吗?
2) Have you met him recently 你最近见过他吗?
1) I have been waiting for you for two hours.
我一直等了你两个小时。(可能表示不满)
2) I have waited for you for two hours.
我等了你两个小时。(说明一个事实)
2. 现在完成进行时有时含有感彩,而现在完成时平铺直叙,不带感彩。
1) Who has been eating the oranges
谁一直在吃橘子呀?(强调动作:一直在吃)
2) Who has eaten the oranges
谁把橘子吃了?(强调吃得一个不剩)
3. 现在完成进行时强调动作,而现在完成时强调结果。
4. 与一段时间连用时可以用现在完成时也可以用现在完成进行时;但与次数连用时只能用现在完成时。
1) He has rung me up five times since 12 o' clock.
从十二点后,他已经给我打了五次电话。
2) I have read this book twice.
这本书我读过两次。
① 表示感官、感觉:see, hear, smell 等;
② 表示爱憎:love, prefer, mind 等;
③ 表示希望、意愿:wish, want, desire 等;
④ 表示相信、猜想:believe, think, suppose 等;
5. 以下几类动词不能用于现在完成进行时:
03
巩固练习
1. She (recite) the words all the evening.
2. I (tell) her many times, but she still makes the same mistake.
3. He (wait) for you for a whole day.
4. She is the most beautiful girl I (see).
5. It is the first time that she (read) such an interesting book.
6. You (sit) at the computer all day. You must be tired.
I. Complete the sentences.
has been reciting
have told
has been waiting
have (ever) seen
has read
have been sitting
7. The two friends (chat) on the Internet for three hours.
8. The manager (tell) the workers how to improve the program since 9 am.
9. It         (rain) every day this month.
10. I        (drink) five cups of coffee this afternoon.
11. We (已经打扫了房屋) . You may come in now.
12. Since that unfortunate accident last week,
I   (一直睡得不好) .
have been chatting
has been telling
has been raining
have drunk
have cleaned the house
haven't been sleeping well
2. Read each situation and rewrite each sentence using the present perfect continuous tense. (P41)
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 the age of eight. Now he has become a professional player.
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.
Timmy is holding a table tennis bat and his short hair is damp with sweat. He looks a little tired because he has been 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.
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.
3. Complete the sentences blow using the correct tenses of the verbs in brackets. (P41)
1. For the whole morning, the board of the directors _________________________ (discuss) the resolution to increase wages in the coming year.
2. Jason's only recreation is painting. He _________________ (learn) how to paint for over five years.
3. Even though we lost the game, we should be proud of ourselves because we _____________________ (try) our best and _____________ (work) as a team.
have been discussing
has been learning
tried
worked
4. He finally_____________________ (finish) the research paper under his tutor's guidance.
5. My nephew Sam ________________________ (collect) comic books since he was five. Now he has more than two hundred of them.
6. The company ______________________________ (launch) an advertising campaign to promote its corporate image.
finished
has been collecting
has launched/launched
Homework:
1.
2.
Thanks