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(共21张PPT)
Unit4 Discover Useful Structures
the present
perfect continuous tense
At the end of this lesson, students are able:
1. To learn the definition and formation of the present perfect continuous tense;
2. To learn the usages of the present perfect continuous tense;
3. To distinguish the present perfect continuous tense and present perfect tense.
Learning Objectives
_____________________with a shadow overhead
_____________________ with a cloud above my bed
I've been lonely for so long
Trapped in the past, I just can't seem to move on
_____________________ all my hopes and dreams away
Just in case I ever need them again someday
_____________________ aside time
To clear a little space in the corners of my mind
All I wanna do is find a way back into love
I can't make it through without a way back into love
_____________________ but the stars refuse to shine
_____________________ but I just don't see the signs
1.Listen to the music and fill in the blank lyrics.
Way Back Into Love
Lead-in
I've been living with a shadow overhead
I've been sleeping with a cloud above my bed
I've been lonely for so long
Trapped in the past, I just can't seem to move on
I've been hiding all my hopes and dreams away
Just in case I ever need them again someday
I've been setting aside time
To clear a little space in the corners of my mind
All I wanna do is find a way back into love
I can't make it through without a way back into love
I've been watching but the stars refuse to shine
I've been searching but I just don't see the signs
2.What’s the similarity of these lyrics you filled in
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
Lead-in
基本结构：“have / has been + 现在分词”
否定：have/has＋not＋been doing
基本含义：表示动作从过去某一时间开始一直持续到现在，可能刚刚停止，也可能仍在继续。
Present
Past
Future
present perfect continuous tense (现在完成进行时)
Explore grammar
He has been watching TV for 3 hours, but he is still watching now.
动作发生在过去，还将继续下去。
Present
Past
Future
Explore grammar
2. Jack has been phoning Jane every night for the last week.
Tom has always been working hard. (赞许）
What have you been doing to my dictionary （不满）
表示动作并不是一直不停地进行，而是在断断续续地重复。
带有感彩，使语言表达更加生动。
Explore grammar
①Inventors ___________________ (一直在试图)to make flying cars since the 1930s.
②Tom _______________________(一直在努力学习) since the new term began.
③I ___________________________(一直在踢足球) all the morning, so I'm sweating heavily.
have been trying
has been working hard
have been playing football
Practice
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
They are different in forms
and usages.
Comparison
1、表示过去发生的某一动作对现在造成的影响或结果。常跟already, yet, just等连用。
You have already grown much taller.
2、表示过去已经开始，持续到现在，而且还可能继续下去的动作状态。往往和表示一段时间的状语连用。
They have learned English for eight years.
现在完成时 has/have done
Comparison
常跟现在完成时连用的标志词：
for+时间段，since+时间点，
already(肯，已经），yet(否，仍未），
recently/lately(近来），so far/up to now/till now(到目前为止），
in/during/over the past (last) few days,
常用的现在完成时句型
1.It has been +时间段+since从句（一般过去时）
It has been three years since the war ended.
2.It is the first time that sb have/has done
Is it the first time that you have visited Qingdao
Comparison
Discover: 现在完成进行时与现在完成时的区别
①They have been widening the road，which will be completed in two months .
他们在加宽马路。(尚未完成)
②They have widened the road.
他们加宽了马路。(已经完成)
③Have you been meeting him recently？
你最近一直见他吗？ (强调动作重复)
④Have you met him recently？
你最近见到过他吗？(表示结果)
⑤Where have you been？We have been looking for you everywhere.
你到哪里去了？我们到处在找你。(表示不满或担心)
⑥We have looked for him，but haven’t found him.
我们找过他，但没有找到他。(无感彩)
Comparison
1. 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。
2. 现在完成进行时的构成: have/has + been + doing
3. 现在完成进行时的常用时间状语: all the time, this week/morning, all night, these few days, over the past xx years , 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
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.
has been reciting
have told
has been waiting
have (ever) seen
has read
have been sitting
Exercises
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
Exercises
1. For the whole morning, the board of 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 games, we should be proud of ourselves because we _______________(try) our best and __________(work) as a team.
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.
1.Complete the sentences below using the correct tenses of the verbs in brackets. （课本P41③）
has/have been discussing
has learnt
have tried
worked
finished
has been collecting
has launched/is launching/will launch
Exercises
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.
2.Read each situation and rewrite each sentence using the present perfect continuous tense.（课本P41②）
Exercises
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. .
3.Complete the sentences using the correct forms of the verbs in brackets.(p.83)
1. I __________________________________________ (think) about what you said ... and I think you’re probably right.
2. We _____________________________ (try) to arrange an interview with the presidential candidate for days, but we _____________ (not receive) their response yet.
3. I guess that you _____________________ (use) the computer a lot recently. You should rest your eyes more often.
4. I’m sorry the meeting _____________________________ (delay). ______ you ___________________ (wait) a long time
5. _____ you _______ (iron) the shirt It is still damp.
6. The oven in her kitchen ____________________ (give) off a sweet smell. Do you know what she is cooking
thought / have thought / have been thinking
have tried / have been trying
haven’t received
have used / have been using
was delayed / has been delayed
Have
been waiting (for)
Have ironed
is giving / has been giving
4. Complete the conversations below using the correct forms of the verbs in brackets. Then explain your choices.
1 A: George, ______ you ______ (see) Martin recently
B: No, but I _______ (call) him last week. He said he was busy.
A: What _______ he ________________________ (do) these days
B: I think he ___________________________ (do) some experiments. He has to finish a paper before the end of this month.
2 A: How long _____ you _________________________ (play) for this team
B: For two months.
A: How long _____ you _________________________ (play) rugby
B: Since I was eight years old.
3 A: Jane, come and see what I ___________ (find).
B: What’s so surprising
A: Well, I __________________________________ (look) through some old photos and I ______ (find) this one of you and me.
B: Oh, my goodness. This photo __________ (take) on the day when we ________ (enter) university. That was 15 years ago.
have seen
called
is / has doing / been doing
is doing/ has been doing
have played / been playing
have found
have played / been playing
was looking / have been looking
found
was taken
entered
Thank you!

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