Unit 6 Nurturing Nature Using language 现在完成进行时 课件(共25张PPT)-外研版(2019)选择性必修第一册

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Unit 6 Nurturing Nature Using language 现在完成进行时 课件(共25张PPT)-外研版(2019)选择性必修第一册

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(共25张PPT)
Structure: have/has been doing
Now listen to an English song and try to fill in the blanks.
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
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
SB1U6 Grammar
Present perfect continuous
现在完成进行时
Learning objectives
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,
这个动作可能终止,也可能还在进行。
1. 现在完成进行时的概念
present perfect continuous
2. 现在完成进行时的结构
主语+have / has been doing
Q1. Which of these statements are true about sentence (a)
(1) Wild animals started using these passages in the past.
(2) Wild animals used these passages only once.
(3) Wild animals still use these passages now.
Activity 2 Grammar
3. 现在完成时和现在完成进行时的区别
a. I have been designing solar racing cars.
我一直在设计太阳能赛车。
b. I have designed five or six different cars.
我已经设计了五六辆不同的小汽车了。
present perfect continuous
现在完成进行时(have/has been doing):表示一个动作开始于过去,一直持续到现在,往往现在正在进行,强调动作的延续性。
现在完成时(have/has done):表示过去发生或已经完成的某一动作对现在产生影响,强调动作的结果。
What is the difference between the expressions in bold in sentences (a) and (b)
Form 形式 State of the action动作状态 Focus
When it started 什时候开始 ended? 结束了吗 have been using
have reached
in the past
in the past
No
Maybe
result or effect
process or duration
have/has been doing
have/has done
4. 现在完成时和现在完成进行时的区别
1.现在完成进行时往往表示动作在重复,而现在完成时一般不表示动作的重复。
a. She has been goingto the doctor a lot recently.
她最近老是去看医生。
b. She has gone to the doctor.
她已经去看过医生了。
present perfect continuous
现在完成时强调的是某个刚刚完成的动作或某个过去的动作对现在的影响或产生的结果;现在完成进行时则强调动作的延续性。试比较:
I have thought it over. 我已经考虑过这件事了。
I have been thinking about it. 我一直在考虑这件事。
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。
4. 现在完成时和现在完成进行时的区别
It has been raining for days.
It has rained.The streets are still wet.
我受够了下雨天了!含厌烦的情绪
描述事实
二、用法
表示动作从过去某时开始,一直延续到现在,将来还可能延续下去,强调动作的延续性。
I have been waiting for an hour, but she hasn't come yet.
我都等了一个小时了,但是她还没来。
Tom has been working hard since the new term began. 自从新学期开始,汤姆一直在努力学习。
2.表示从过去某时开始到现在这一段时间内动作一再重复发生。
She has been phoning Jim every night for the past two weeks. 两星期以来,她每天晚上都给吉姆打电话。
You have been telling me not to be late all the way.
一路上你一直在告诉我不要迟到。
a. A private detective has been tailing him for several weeks.
一个私人侦探几个星期以来一直在跟踪他。
b. Craig loves outdoor activities — he skis in winter and has been
fishing and hunting since he was a child.
Craig 热爱户外活动。冬天他去滑雪,他从小就开始钓鱼和打猎。
c.We have been learning English since we were pupils.
3. 常与现在完成进行时连用的时间状语
现在完成进行时常与表示一段时间的状语连用,例如:all the
time, this week, all night, these few days, for … , since … 等。
present perfect continuous
真题体验
1.(2024· 浙江1月卷)Norman Stienwand,who farms in that area,
     (address) public meetings on this issue for years.
【解析】 考查现在完成进行时。由下文时间标志词for years可知,此处表示address这个动作有可能继续进行下去,应用现在完成进行时。故填has been addressing。
has been
addressing
在那一地区务农的诺曼·斯坦万德,多年来一直就该问题在公众会议上发言。
发表演讲,向....说话
2.(2023·新高考全国Ⅱ卷)Since June 2017...I       (help) the panda keepers at the zoo to feel more comfortable and confident speaking English.
【解析】 考查现在完成进行时。由前文时间标志词Since June 2017可知,此处表示help这个动作有可能继续进行下去,应用现在完成进行时。故填have been helping。
have been helping
自2017年6月以来,我一直在帮助动物园的熊猫饲养员更自在、更自信地用英语交流。
3.(2023·全国甲卷)Fourth decade as a writer...Well,I guess I
(write)novels since the 1980s.
【解析】 考查现在完成进行时。根据下文时间标志词since the 1980s可知,此处表示write这个动作持续进行到现在,有可能继续进行下去,应用现在完成进行时。故填have been writing。
have been writing
语法专项训练
Ⅰ.句子语法填空
1.I      (read) this interesting book for two hours.
2.They       (wait) for the bus at the bus stop for half an hour,
which makes them start to feel anxious.
3.He       (finish) his homework and can go out to play basketball with his friends.
4.I       (see) this film before and it left a deep impression on me.
5.I       (lose) my key and now I can’t open the door.
have been reading
have been waiting
has finished
have seen
lost/have lost
[语境运用] 完成句子
I             (一直在准备) the final exams for the whole week,and I         (已经完成) reviewing half of the subjects.
Tom           (一直在学习) Spanish for two years,and he
      (已经通过了) the first-level language test.
have been preparing for
have finished
has been learning
has passed
Complete the paragraphs with the correct form of the verbs in brackets.
Look at the charts and make sentences using the present perfect continuous tense. (P87)
1. The number of
trees has been
increasing in the
last 20 years.
2. Desert areas have
been reducing in
the last 20 years.
3. Butterfly population has been increasing / becoming larger and larger in the last 20 years.
Which kind of tourism may be ecotourism
Thank you!

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