Unit 4 Adversity and Courage Discover Useful Structures 课件(共29张PPT)-人教版（2019）选择性必修第三册

(共29张PPT)
Unit 4 Adversity and Courage
Discover useful structures
Enjoy a song and fill in the blanks.
I have been living with a shadow overhead.
I __________________ with a cloud above my bed.
I ____________________ all my hopes and dreams away.
I ___________________ aside time.
I ___________________ but the stars refuse to shine.
I ___________________ but I just don’t see the signs.
have been sleeping
have been hiding
have been setting
have been watching
The present perfect continuous tense
现在完成进行时
Observe and discover
have been searching
1. This is the adventure that I have been dreaming of.
2. We are now camped on the rice 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.
结构
S（主）
+
have / has been doing
Focus on
基本用法
The Present Perfect Continuous Tense
现在完成进行时
1. 基本概念
2. 用法
3. 现在完成进行时和
现在完成时的区别
现在完成进行时
现在完成进行时表示动作从过去某一时间开始，一直持续到现在，或者刚刚终止，或者可能还要继续进行下去。
基本概念
现在完成进行时的用法 1
learn
8 years ago
future
now
learn
learn
I have been learning English since I was 8 years old and I still love it.
表示动作从过去某时开始一直到说话时还在进行或可能还要继续下去。
现在完成进行时的用法 2
1. --- I am sorry I have kept you waiting so long.
--- It is all right. I have been reading the
newspapers.
2. We have been waiting for you for half an hour.
3. Her eyes are red. It's obvious that she has been crying for a long time.
2.表示不久前刚刚结束的动作。这种意义通常根据上下文来判断。
与现在完成进行时连用的时间状语: all day/month; this month/week/year; these days; recently/lately; in the past/last few+时间段; since+时间点; for+时间段, ever since等。
He has been working all day.
They have been building the bridge for two months.
The two parties have been trying to unite since the New Year.
e.g.:
How everyone will admire me when I tell them I am admitted to the university I have been dreaming of.
现在完成进行时的用法 3
1. It has been raining these days.
2. We have been practicing Kung Fu recently.
3. I have been visiting some cities of China
this month.
3.表示在一段持续的时间内动作的多次重复，而这个重复的动作在说话时并不一定在进行。
现在完成进行时的用法4
Why are you late again I have been waiting for you for two hours.
1. You have been making progress and I am proud of you!
4.表示某种强烈的感彩,如：赞赏、批评、愤怒等。
现在完成时和
现在完成进行时的比较
相同点：
1. 动作都发生在过去
2. 都与一段时间连用
比较一：
Li Jia __________ (read) a book about psychology. (She finished reading the book.)
Li Jia ______________ (read) a book about psychology. (She is still reading the book.)
has read
has been reading
past
future
now
read
do
have read
past
future
now
read
do
have been reading
do
现在完成时
现在完成进行时
动作刚结束；
强调影响或结果
动作还在延续；
强调动作的延续性
现在完成时可以表示动作的反复性；
现在完成时一般不表示动作的反复
Have you been meeting him recently
你最近经常见到他吗？（反复性）
Have you met him recently
你最近见过他吗？
The teacher has been telling us to be careful all the term.
整个学期，老师一直在告诉我们要细心。（反复性）
The teacher has told us to be careful all the term.
老师告诉我们整个学期都要细心。
比较二：
比较二：（2）
A. — _____________ have you visited Egypt this month
— I have visited Egypt twice this month.
(过去往返埃及和居住地, 但现在已回来)
B. — __________ have you been touring Egypt
— I have been touring Egypt for two month.
(过去一段时间一直待在埃及, 没有离开过)
How many times
How long
Tip 2:现在完成时表示反复发生的动作，提问时用how many times。而现在完成进行时，表示持续的、不间断的动作，提问时用how long。
比较三：
Tip 3:现在完成进行时比较生动，有时含有明显的感彩(喜悦、愤怒、不满、厌恶等。)，而现在完成时往往只说明一个事实，一种影响或结果。
试比较：
I have waited for you for two hours.
I have been waiting for you for two hours.
说一个事实；平铺直叙
强调动作的持续性或不满意
下列句型中常用现在完成时
This (that/ It ) is the first (second…) time that + 完成时
This (That/ It) is the best/ finest / most interesting….+that+完成时
比较四（1）：
It’s the first time that I have been to the Great Wall.
This is the most interesting film that I have seen.
They have known each other since 1970.
（1）有些表示状态、感情、感觉的动词如：
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；
不能用于现在完成进行时，但可用于现在完成时。
John has loved Mary since ten years ago.
比较四：（2）
某些不具延续性含义的动词，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。
We have finished the homework.
We have been finishing the homework.
我们已经完成了家庭作业。
单句改错
1. She had been reading all morning; she ought to have a rest. __________
2. It is the third time that you visited our school. __________
3. I have been looked for my lost book for three days, but I still haven’t found it. __________
4. Tom worked in the company for ten years and he doesn’t have the intention to leave. _________
had改成 has
visited前加 have
looked改成 looking
Worked改成 has been working
consolidation
【内化·用】 (1)翻译句子。
①我一直等了你两个小时。
____________________________________
②我等你两个小时了。
_______________________________
(2)用所给词的适当形式填空。
①There __________(exist) an old temple since the Ming Dynasty.
②I _________________(teach) English for almost twenty years, and I will step in another new teaching year.
I have been waiting for you for two hours.
I have waited for you for two hours.
has existed
have been teaching
真题演练
1. People ________________ (pour) into stadiums since the days of ancient Greece. (2021 全国乙卷)
2. A retired engineer, 76-year-old Wilson _______________ (offer) free rides to college students for the past eight years.
(2019 北京卷)
3. You know, I _________________ (look) for a job for three months, and this is my first formal interview.
have been pouring
have been offering
have been looking
真题演练
4. Marty ________________(work) hard on his book this week and thinks he ________________ (finish) it by Friday.
5. — Hi, Tom, you look tired.
— I am tired. I ________________ (paint) the living room all day.
6. I asked where they ______________ (stay) all those days.
has been working
will have finished
have been painting
had been staying
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
3.Complete the sentences below using the correct tenses of the verbs in brackets. Then explain your reasons to your partner. 翻译：
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。
has been discussing
has been learning
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。
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。
tried
worked
finished
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。
has been collecting
is launching/has launched/
launched
2.Read each situation and rewrite each sentence using the present perfect continuous tense.翻译
P41 2
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 two
hours.
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。