人教版（2019）选择性必修 第三册Unit 4 Adversity and courage 现在完成进行时课件(共33张PPT，内镶嵌视频素材)
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| 名称 | 人教版（2019）选择性必修 第三册Unit 4 Adversity and courage 现在完成进行时课件(共33张PPT，内镶嵌视频素材) |  | |
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| 资源类型 | 教案 | ||
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| 科目 | 英语 | ||
| 更新时间 | 2023-03-28 22:21:46 | ||
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(共33张PPT)
Adversity and Courage
Unit 4
Learning about language
(Discover useful structures)
Present perfect continuous tense
现在完成进行时
Present perfect continuous tense
现在完成时
Lead-in
Practice
Production
Presentatioin
Words
bark
rugby
bat
damp
recreation
guidance
nephew
advertising
advertise
corporate
vi.&n.（狗）吠叫；吠叫声
n. 橄榄球运动
n. 球拍；蝙蝠
vi.&vt. 用球板击球；挥打；拍打
adj. 潮湿的；湿气重的
n. 娱乐；消遣；游戏
n. 指导；引导；导航
n. 侄子；外甥
n. 广告活动；广告业
vt.&vi. 公布；宣传；做广告
adj. 公司的；法人的；社团的
Lead-in
I __________________ with a shadow overhead
I __________________ with a cloud above my bed
I have been lonely for so long
Trapped in the past, I just can’t seem to move on
I __________________ all my hopes and dreams away
Just in case I ever need them again someday
I __________________ aside time to clear a little space in the corners of
my mind……
have been living
have been sleeping
have been hiding
have been setting
The Present Perfect Continuous Tense
English Song
1. This is the adventure that I have been dreaming of.
现在完成进行时态
What is the tense of the sentence below
2. We are now camped on the ice and we have been managing to survive, but spring is coming, and the ice will soon begin to melt.
3. We have been struggling for days, but things on Elephant Island are going from bad to worse.
Find more examples containing this tense:
What is the function of the present perfect continuous tense
Observe
The Present Perfect Continuous Tense
form: have/has been doing
现在完成进行时
The Present Perfect Continuous Tense
现在完成进行时
1. 基本概念/用法
2. 结构
3. 常用时间状语（时间标志词）
4. 现在完成进行时和现在完成时的区别
Presentation
Present perfect continuous
现在完成进行时
1.强调动作的持续性：现在完成进行时表示动作从过去的某一时间开始一直持续到现在，还有可能延续下去，动作是否延续下去视上下文而定。
The Chinese have been making paper for two thousand years.
中国有2000年的造纸历史。
动作还将继续下去
He was tired, he has been working all day.
他累了，他整天都在工作。
表示工作的持续状态。
一、基本概念/用法
这些天来他一直在给我们的杂志写文章。
Tom had been phoning Alice every night for several months.
几个月来，汤姆每天晚上都给艾丽斯打电话。
2.表重复：表示从过去到现在的一段时间内反复进行的动作或存在的状态。
All these days he has been writing articles to our magazine.
表示的是一段时间反复进行的动作。
强调Tom最近几个月反复给Alice打电话。
注意：
现在完成进行时表示的动作不是在一直不停地进行，而是从过去持续到现在断断续续重复进行的动作。
We’ve been looking forward to our summer vacation.
Too much has been happening today.
3. 表达某种感彩: 表示愿望，感慨，表扬或厌恶等感彩。
今天真是一个多事的日子。
二、结构
She has been burning the midnight oil to prepare for GRE.
We have been going to Seattle for a half a year.
I've been working with her for 20 years.
例：
have/has + been + doing”
否定：have/has + not + been + doing
② Craig loves outdoor activities - he skis in winter and has been fishing and hunting since he was a child.
一位私人侦探几个星期以来一直在跟踪他。
Craig热爱户外活动，冬天他去滑雪，他从小就开始钓鱼和打猎。
现在完成进行时常与表示时间段的状语连用，例如：
all the time, this week, all night, these few days, for…, since…等。
三、常用时间状语
① A private detective has been tailing (跟踪) him for several weeks.
四、现在完成时与现在完成进行时的区别：
① 在不同时间状语的情况下，现在完成进行时的动作从过去发生一直持续到现在，可能刚刚终止也可能继续持续下去。而现在完成时的动作发生在过去，并在过去就结束了动作，不会持续到现在，强调对现在造成的影响和结果。
即：现在完成进行时强调动作的延续性，而现在完成时强调动作的结果。
即：现在完成进行时强调未完成和动作，现在完成时强调完成和影响/结果
我们一直在打扫教室。（还在做还有可能继续做）
我们把教室打扫过了。（做完了）
We have cleaned the classroom.
We have been cleaning the classroom.
Julia has gone to the library.
② 现在完成进行时往往表示动作在重复，而现在完成时不表示动作的重复。
即：现在完成进行时可表重复事件，现在完成时经常表单个事件。
朱莉娅在一年间经常去图书馆。（重复事件）
Julia has been going to the library for a year.
朱莉娅去图书馆了。（单个事件）
你做了什么？（仅是问问）
③ 现在完成进行时与所有进行时态一样带有感彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感彩。
What have you done
Where have you been
I have been waiting for you in the rain for two hours.
你去哪儿了，我已经在雨里等了你两小时了。（表示不满）
④不用于进行时态的动词通常也不用于现在完成进行时，但它们可以用于现在完成时。
即：某些非延续性含义的动词，如come, go, marry, die, finish，leave等，不适用于现在完成进行时，但可用于现在完成时。
⑤现在完成进行时不用于被动语态。若要用，可用现在完成时的被动语态代替。
The war has lasted for a long time.
这场战争持续了很长时间。
We have been painting the house for a month.
房子已经粉刷了一个月了。
The house has been painted for a month.
I have not spoken English for two years.
He has never seen a man like him.
⑥在否定句中一般用现在完成时而不用现在完成进行时。
I have not been speaking English for two years.
He has never been seeing a man like him.
注意：有些动词在特定的语境下用现在完成时和现在完成进行时意思差别不大。
It has rained for two hours. 雨已经下了两个小时了。
It has been raining for two hours.雨一直下了两个小时了。
Practice
（1）It （rain） every day this month.
（2）So far this year we （see） a fall in oil prices by between 5 and 10 percent.
（3）I （drink） five cups of milk tea this afternoon.
（4）Donna （think） about going back to school，but she hasn’t decided yet.
（5）He is the most enthusiastic man that I （meet）.
（6）All these years we （try） to search for the missing plane.
（7）We （已经打扫了房屋）. You may come in now.
（8）Since that unfortunate accident last week, I （一直睡得不好）.
（9）She （一直睡）for 12 hours and still can’t wake up.
has been raining
have seen
have drunk
has been thinking
have met
have been trying
have cleaned the house
haven’t been sleeping well
has been sleeping
Read each situation and rewrite each sentence using the present perfect continuous tense.
1. The dog started to bark about two hours ago. 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.
_____________________________________
_____________________________________
The dog has been barking for about two hours.
狗一直犬吠了大约两个小时。
Steve has been playing rugby since the age of eight.
史蒂夫自八岁以来一直打橄榄球。
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.
_____________________________________________
_____________________________________________
He looks a little tired because he has been playing table tennis for twohours.
他看起来有点累因为他一直打乒乓球达两个小时了。
Diane hasn't been sleeping well this week.
戴安娜这个星期一直没睡好。
I have been trying to phone you this morning.
我今天早上一直试图给你打电话。
Complete the sentences below using the correct tenses of the verbs in brackets. Then explain your reasons to your partner.
1. For the whole morning, the board of the directors _________________ (discuss) the resolution to increase wages in the coming year.
一整个早上，董事会一直在讨论来年涨工资的决议。
2. Jason's only recreation is painting. He _______________ (learn) how to paint for over five years.
贾森唯一的娱乐就是画画。他一直在学如何画画达五年多时间了。
3. Even though we lost the game, we should be proud of ourselves because we _____ (try) our best and _______ (work) as a team.
尽管我们输掉了比赛，我们应该为我们自己自豪，因为我们尽了我们的最大努力和团队进行了合作。
has been discussing
has been learning
tried
worked
4. He finally _________ (finish) the research paper under his tutor's guidance.
他终于在他的导师指导之下完成了研究论文。
5. My nephew Sam ___________________ (collect) comic books since he was five. Now he has more than two hundred of them.
我的侄子萨姆自他五岁以来一直在收集连环画。现在他有超过两百本了。
6. The company ____________________ /____________________ / _____________ (launch) an advertising campaign to promote its corporate image.
这家公司正在发起/已经发起了/发起过一个广告活动来提升公司的形象。
finished
has been collecting
is launching
has launched
has launched
1. and I speak English fluently.So I am qualified to be your interpreter.
我已经学英语10年了，我有一口流利的英语。因此，我有资格成为您的翻译。
2.The manager the workers how to improve the program since 9 am.
经理从早上9点就一直在告诉工人如何改善这个项目。
3.It is the first time that she such an interesting book.
这是她第一次读这么有趣的书。
4.She is .
她是我见过的最漂亮的女孩。
5. ，but she still makes the same mistake.
我已经告诉过她许多次，但是，她仍然犯同样的错误。
I have been learning English for ten years
has been telling
has read
the most beautiful girl I have ever seen
I have told her many times
单句语法填空
1）It （rain） every day this month.
2）So far this year we （see） a fall in house prices by between 5 and 10 percent.
3）I （drink） five cups of coffee this afternoon.
4）Now that she is out of work，Lucy （think） about going back to school，but she hasn’t decided yet.
5）He is the most creative man that I （meet）.
6）All these years we （try） to get in touch with him.
has been raining
have seen
have drunk
has been thinking
have met
have been trying
完成句子
7）We （已经打扫了房屋）. You may come in now.
8）Since that unfortunate accident last week， I ______________________ （一直睡得不好）.
9）She （一直睡）for 6 hours and still can’t wake up.
have cleaned the house
haven’t been sleeping well
has been sleeping
1. [2020 天津卷]
- You are a great swimmer.
- Thanks. It's because I __ a lot these days.
A. have been prctising
B. was practising
C. would practise
D. had practised
【解析】考察时态。
句意：---你游泳很棒。---谢谢。这是因为这些天我一直在练习。根据时间状语these days(这些天)可知，“练习游泳”从数天前开始，一直持续到现在。
因此该句应用现在完成进行时态。故选A。
2. [2019 北京卷]
A retired engineer, 76-year-old Wilson _____________ (offer) free rides to
college students for the past eight years.
3. [2018 全国卷]
Languages _________________________ (come and go) for thousands of years, but in recent times there has been less coming and a lot more going.
has been offering
has been coming and going
1. 一个星期以来，艾丽斯在公共汽车站一直 遇到那个穿黑衣服的人。
Alice _____ _____ ________ the man in black at the bus stop for a week.
2. 她的组织自成立以来一直在为那些被遗弃 的动物筹集资金。
Her organization _____ ______ _________ money for those abandoned animals since it was set up.
has been meeting
has been collecting
3. 我一直期待着去英国旅行，我的梦想将在下个 月实现。
I _____ _____ __________ to travel to the UK, and my dream will come true next month.
4. 桑迪已经教学16年，她探索出了一些有效的教 学方法。
Sandy ____ ____ _________ for sixteen years, and has explored some effective teaching methods.
5. 自六月以来，玛丽每天晚上都去上写作课，这门课将于本周结束。
Mary ____ _____ _______ to writing classes every night since June and the course will end this week.
have been expecting
has been teaching
has been going
Work in pairs. Interview your partner about the things that he/she has been doing. The following questions might help you.
Do you have any hobbies or interests
How long have you been learning / playing …
What have you been doing recently
Interview
Production
A: Do you have any hobbies
B: Sure. I have several hobbies such as table tennis, photography and kite flying. But my favourite hobby is playing the guitar.
A: How long have you been learning the guitar
B: I have been learning the guitar since I was eight years old. I saw a video of someone playing and I fell in love with it.
A: That's great.
Sample Conversation
1. 现在完成进行时的构成: have/has + been + doing
2. 现在完成进行时的基本概念：表示动作从过去某一时间开始一直持续到现在，这个动作可能刚终止，也可能还在进行。
3. 现在完成进行时的常用时间状语: all the time, this week, all night, these few days, for…, since…等。
4. 现在完成时和现在完成进行时的区别：
① 动作是否有延续性
② 是否表示动作重复性
③ 是否有感彩
Summary
Thanks
Adversity and Courage
Unit 4
Learning about language
(Discover useful structures)
Present perfect continuous tense
现在完成进行时
Present perfect continuous tense
现在完成时
Lead-in
Practice
Production
Presentatioin
Words
bark
rugby
bat
damp
recreation
guidance
nephew
advertising
advertise
corporate
vi.&n.（狗）吠叫；吠叫声
n. 橄榄球运动
n. 球拍；蝙蝠
vi.&vt. 用球板击球；挥打；拍打
adj. 潮湿的；湿气重的
n. 娱乐；消遣；游戏
n. 指导；引导；导航
n. 侄子；外甥
n. 广告活动；广告业
vt.&vi. 公布；宣传；做广告
adj. 公司的；法人的；社团的
Lead-in
I __________________ with a shadow overhead
I __________________ with a cloud above my bed
I have been lonely for so long
Trapped in the past, I just can’t seem to move on
I __________________ all my hopes and dreams away
Just in case I ever need them again someday
I __________________ aside time to clear a little space in the corners of
my mind……
have been living
have been sleeping
have been hiding
have been setting
The Present Perfect Continuous Tense
English Song
1. This is the adventure that I have been dreaming of.
现在完成进行时态
What is the tense of the sentence below
2. We are now camped on the ice and we have been managing to survive, but spring is coming, and the ice will soon begin to melt.
3. We have been struggling for days, but things on Elephant Island are going from bad to worse.
Find more examples containing this tense:
What is the function of the present perfect continuous tense
Observe
The Present Perfect Continuous Tense
form: have/has been doing
现在完成进行时
The Present Perfect Continuous Tense
现在完成进行时
1. 基本概念/用法
2. 结构
3. 常用时间状语（时间标志词）
4. 现在完成进行时和现在完成时的区别
Presentation
Present perfect continuous
现在完成进行时
1.强调动作的持续性：现在完成进行时表示动作从过去的某一时间开始一直持续到现在，还有可能延续下去，动作是否延续下去视上下文而定。
The Chinese have been making paper for two thousand years.
中国有2000年的造纸历史。
动作还将继续下去
He was tired, he has been working all day.
他累了，他整天都在工作。
表示工作的持续状态。
一、基本概念/用法
这些天来他一直在给我们的杂志写文章。
Tom had been phoning Alice every night for several months.
几个月来，汤姆每天晚上都给艾丽斯打电话。
2.表重复：表示从过去到现在的一段时间内反复进行的动作或存在的状态。
All these days he has been writing articles to our magazine.
表示的是一段时间反复进行的动作。
强调Tom最近几个月反复给Alice打电话。
注意：
现在完成进行时表示的动作不是在一直不停地进行，而是从过去持续到现在断断续续重复进行的动作。
We’ve been looking forward to our summer vacation.
Too much has been happening today.
3. 表达某种感彩: 表示愿望，感慨，表扬或厌恶等感彩。
今天真是一个多事的日子。
二、结构
She has been burning the midnight oil to prepare for GRE.
We have been going to Seattle for a half a year.
I've been working with her for 20 years.
例：
have/has + been + doing”
否定：have/has + not + been + doing
② Craig loves outdoor activities - he skis in winter and has been fishing and hunting since he was a child.
一位私人侦探几个星期以来一直在跟踪他。
Craig热爱户外活动，冬天他去滑雪，他从小就开始钓鱼和打猎。
现在完成进行时常与表示时间段的状语连用，例如：
all the time, this week, all night, these few days, for…, since…等。
三、常用时间状语
① A private detective has been tailing (跟踪) him for several weeks.
四、现在完成时与现在完成进行时的区别：
① 在不同时间状语的情况下，现在完成进行时的动作从过去发生一直持续到现在，可能刚刚终止也可能继续持续下去。而现在完成时的动作发生在过去，并在过去就结束了动作，不会持续到现在，强调对现在造成的影响和结果。
即：现在完成进行时强调动作的延续性，而现在完成时强调动作的结果。
即：现在完成进行时强调未完成和动作，现在完成时强调完成和影响/结果
我们一直在打扫教室。（还在做还有可能继续做）
我们把教室打扫过了。（做完了）
We have cleaned the classroom.
We have been cleaning the classroom.
Julia has gone to the library.
② 现在完成进行时往往表示动作在重复，而现在完成时不表示动作的重复。
即：现在完成进行时可表重复事件，现在完成时经常表单个事件。
朱莉娅在一年间经常去图书馆。（重复事件）
Julia has been going to the library for a year.
朱莉娅去图书馆了。（单个事件）
你做了什么？（仅是问问）
③ 现在完成进行时与所有进行时态一样带有感彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感彩。
What have you done
Where have you been
I have been waiting for you in the rain for two hours.
你去哪儿了，我已经在雨里等了你两小时了。（表示不满）
④不用于进行时态的动词通常也不用于现在完成进行时，但它们可以用于现在完成时。
即：某些非延续性含义的动词，如come, go, marry, die, finish，leave等，不适用于现在完成进行时，但可用于现在完成时。
⑤现在完成进行时不用于被动语态。若要用，可用现在完成时的被动语态代替。
The war has lasted for a long time.
这场战争持续了很长时间。
We have been painting the house for a month.
房子已经粉刷了一个月了。
The house has been painted for a month.
I have not spoken English for two years.
He has never seen a man like him.
⑥在否定句中一般用现在完成时而不用现在完成进行时。
I have not been speaking English for two years.
He has never been seeing a man like him.
注意：有些动词在特定的语境下用现在完成时和现在完成进行时意思差别不大。
It has rained for two hours. 雨已经下了两个小时了。
It has been raining for two hours.雨一直下了两个小时了。
Practice
（1）It （rain） every day this month.
（2）So far this year we （see） a fall in oil prices by between 5 and 10 percent.
（3）I （drink） five cups of milk tea this afternoon.
（4）Donna （think） about going back to school，but she hasn’t decided yet.
（5）He is the most enthusiastic man that I （meet）.
（6）All these years we （try） to search for the missing plane.
（7）We （已经打扫了房屋）. You may come in now.
（8）Since that unfortunate accident last week, I （一直睡得不好）.
（9）She （一直睡）for 12 hours and still can’t wake up.
has been raining
have seen
have drunk
has been thinking
have met
have been trying
have cleaned the house
haven’t been sleeping well
has been sleeping
Read each situation and rewrite each sentence using the present perfect continuous tense.
1. The dog started to bark about two hours ago. 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.
_____________________________________
_____________________________________
The dog has been barking for about two hours.
狗一直犬吠了大约两个小时。
Steve has been playing rugby since the age of eight.
史蒂夫自八岁以来一直打橄榄球。
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.
_____________________________________________
_____________________________________________
He looks a little tired because he has been playing table tennis for twohours.
他看起来有点累因为他一直打乒乓球达两个小时了。
Diane hasn't been sleeping well this week.
戴安娜这个星期一直没睡好。
I have been trying to phone you this morning.
我今天早上一直试图给你打电话。
Complete the sentences below using the correct tenses of the verbs in brackets. Then explain your reasons to your partner.
1. For the whole morning, the board of the directors _________________ (discuss) the resolution to increase wages in the coming year.
一整个早上，董事会一直在讨论来年涨工资的决议。
2. Jason's only recreation is painting. He _______________ (learn) how to paint for over five years.
贾森唯一的娱乐就是画画。他一直在学如何画画达五年多时间了。
3. Even though we lost the game, we should be proud of ourselves because we _____ (try) our best and _______ (work) as a team.
尽管我们输掉了比赛，我们应该为我们自己自豪，因为我们尽了我们的最大努力和团队进行了合作。
has been discussing
has been learning
tried
worked
4. He finally _________ (finish) the research paper under his tutor's guidance.
他终于在他的导师指导之下完成了研究论文。
5. My nephew Sam ___________________ (collect) comic books since he was five. Now he has more than two hundred of them.
我的侄子萨姆自他五岁以来一直在收集连环画。现在他有超过两百本了。
6. The company ____________________ /____________________ / _____________ (launch) an advertising campaign to promote its corporate image.
这家公司正在发起/已经发起了/发起过一个广告活动来提升公司的形象。
finished
has been collecting
is launching
has launched
has launched
1. and I speak English fluently.So I am qualified to be your interpreter.
我已经学英语10年了，我有一口流利的英语。因此，我有资格成为您的翻译。
2.The manager the workers how to improve the program since 9 am.
经理从早上9点就一直在告诉工人如何改善这个项目。
3.It is the first time that she such an interesting book.
这是她第一次读这么有趣的书。
4.She is .
她是我见过的最漂亮的女孩。
5. ，but she still makes the same mistake.
我已经告诉过她许多次，但是，她仍然犯同样的错误。
I have been learning English for ten years
has been telling
has read
the most beautiful girl I have ever seen
I have told her many times
单句语法填空
1）It （rain） every day this month.
2）So far this year we （see） a fall in house prices by between 5 and 10 percent.
3）I （drink） five cups of coffee this afternoon.
4）Now that she is out of work，Lucy （think） about going back to school，but she hasn’t decided yet.
5）He is the most creative man that I （meet）.
6）All these years we （try） to get in touch with him.
has been raining
have seen
have drunk
has been thinking
have met
have been trying
完成句子
7）We （已经打扫了房屋）. You may come in now.
8）Since that unfortunate accident last week， I ______________________ （一直睡得不好）.
9）She （一直睡）for 6 hours and still can’t wake up.
have cleaned the house
haven’t been sleeping well
has been sleeping
1. [2020 天津卷]
- You are a great swimmer.
- Thanks. It's because I __ a lot these days.
A. have been prctising
B. was practising
C. would practise
D. had practised
【解析】考察时态。
句意：---你游泳很棒。---谢谢。这是因为这些天我一直在练习。根据时间状语these days(这些天)可知，“练习游泳”从数天前开始，一直持续到现在。
因此该句应用现在完成进行时态。故选A。
2. [2019 北京卷]
A retired engineer, 76-year-old Wilson _____________ (offer) free rides to
college students for the past eight years.
3. [2018 全国卷]
Languages _________________________ (come and go) for thousands of years, but in recent times there has been less coming and a lot more going.
has been offering
has been coming and going
1. 一个星期以来，艾丽斯在公共汽车站一直 遇到那个穿黑衣服的人。
Alice _____ _____ ________ the man in black at the bus stop for a week.
2. 她的组织自成立以来一直在为那些被遗弃 的动物筹集资金。
Her organization _____ ______ _________ money for those abandoned animals since it was set up.
has been meeting
has been collecting
3. 我一直期待着去英国旅行，我的梦想将在下个 月实现。
I _____ _____ __________ to travel to the UK, and my dream will come true next month.
4. 桑迪已经教学16年，她探索出了一些有效的教 学方法。
Sandy ____ ____ _________ for sixteen years, and has explored some effective teaching methods.
5. 自六月以来，玛丽每天晚上都去上写作课，这门课将于本周结束。
Mary ____ _____ _______ to writing classes every night since June and the course will end this week.
have been expecting
has been teaching
has been going
Work in pairs. Interview your partner about the things that he/she has been doing. The following questions might help you.
Do you have any hobbies or interests
How long have you been learning / playing …
What have you been doing recently
Interview
Production
A: Do you have any hobbies
B: Sure. I have several hobbies such as table tennis, photography and kite flying. But my favourite hobby is playing the guitar.
A: How long have you been learning the guitar
B: I have been learning the guitar since I was eight years old. I saw a video of someone playing and I fell in love with it.
A: That's great.
Sample Conversation
1. 现在完成进行时的构成: have/has + been + doing
2. 现在完成进行时的基本概念：表示动作从过去某一时间开始一直持续到现在，这个动作可能刚终止，也可能还在进行。
3. 现在完成进行时的常用时间状语: all the time, this week, all night, these few days, for…, since…等。
4. 现在完成时和现在完成进行时的区别：
① 动作是否有延续性
② 是否表示动作重复性
③ 是否有感彩
Summary
Thanks