Unit 3 现在完成进行时Present Perfect Continuous Tense （ppt课件）-2023新牛津译林版（2020）《高中英语》选择性必修第二册.pptx

1、Present Perfect Continuous Tense现在完成进行时现在完成进行时XB2 Unit 2 Fit for life To learn the present perfect continuous tense;To practice the present perfect continuous tense by finishing some exercises.【语法感知】补全以下课文原句并思考所填写部分的功能与构成:1.Over the past three months I _(test)out the limits of what I can do with my

2、new hand,and it constantly surprises me.2.Scientists _(make)great progress in robotic technology in recent years,and their work on robotic limbs has really changed my life.3.Geneticists _(try)to identify which genes relate to which diseases,as they believe genome editing is an effective means of dis

3、ease treatment and prevention.4.Despite the public argument over this technology,its possibilities _(create)much excitement throughout the entire medical community and beyond.have been testinghave been makinghave been tryinghave been creatingThe Present Perfect Continuous Tense 现在完成进行时 1.定义 2.构成3.基本

4、用法现在完成进行时定义现在完成进行时表示动作从过去过去某一时间开始，一直持续到现在现在，或者刚刚终止，或者可能还要继续继续进行进行下去。pastfuturenowdo do现在完成进行时现在完成进行时 do1.I have been learning English since I was 8 years old and I still love it.2.It has been raining these days.3.He hasnt been using the car for the last two months.4.Have they been waiting for you fo

5、r half an hour?构成肯定句：否定句：一般疑问句：主语has/have been doing+其他主语has/have not been doing+其他Has/Have主语been doing+其他？注意：不用被动语态构成基本用法1.现在完成进行时经常用来表示一个开始于过去,现在刚刚完成或还要继续下去的行为。*Why are your clothes so dirty?What have you been doing?你的衣服为什么这么脏?你都干什么了?(刚结束)*It has been raining for two hours.雨已经下了两个小时了。(现在还在下)*Jack

6、has been feeling very well recently.杰克最近身体一直很好。(这个状态还要延续)2.现在完成进行时还可以用来表示一个开始于过去,延续到现在,并在一个阶段内重复发生的行动。*She has been playing tennis since she was eight.她从八岁起就打网球了。(经常发生,并且还要持续)*Weve been seeing quite a lot of each other recently.最近我们常常见面。(过去开始,并在这个阶段内重复发生)all day/month;this month/week/year;these days

7、;recently/lately;since+时间点/从句;for+时间段等。常用时间状语现在完成时现在完成时现在完成进行时现在完成进行时V S pastfuturenowdo dohave done pastfuturenowdo dohave been doing现在完成时现在完成时 do现在完成进行时现在完成进行时1.现在完成时强调动作行为的结果、影响 现在完成进行时强调动作的持续过程*The car is going again now.Tom has repaired it.汽车现在又开动了。汤姆把它修好了。(现在完成时,强调结果)*Toms hands are very dirty

8、.He has been repairing the car.汤姆的手很脏。他一直在修理汽车。(现在完成进行时,强调动作持续的过程)2.有些动词如learn(学习),lie(躺),live(居住),rain(下雨),sleep(睡),study(学习),wait(等候),work(工作)等本身就有持续性,这些动词的现在完成进行时等同于现在完成时。如:*They have been living in this city for ten years.*They have lived in this city for ten years.两句都可翻译成:他们在这个城市已经住十年了。而且都表示动作还

9、将继续下去。*I have been working here for five years.*I have worked here for five years.两句都可翻译成:我在这里已经工作五年了。都表示动作还将继续下去。3.3.现在完成时现在完成时往往只说明一个往往只说明一个事实事实，一种，一种影响影响或或结果结果现在完成进行时现在完成进行时比较生动，有时含有明显的比较生动，有时含有明显的感情色彩感情色彩(喜悦喜悦、愤怒愤怒、不满不满、厌恶厌恶等)Translate:I have waited for you for two hours.I have been waiting for

10、you for two hours.我等了你两个小时。我等了你两个小时。我已经等你两个小时了。我已经等你两个小时了。4.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。我们已经完成了家庭作业。1.现在完成进行时的定义：2.现在完成进行时的构成:3.现在完成进行时的常用时间状语: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。

11、have/has been+doingall day/month;this month/week/year;these days;recently/lately;since+时间点时间点/从句从句;for+时间段时间段等等。【即学活用】(1)How long _you _English?你学习英语多久了?(2)I _very well for the past few days.这几天以来,我一直感到不太舒服。(3)I _to find out her telephone number.我一直在设法找出她的电话号码。(4)She is very tired.She _letters all day.她很累了。她整天都在录入信件。havebeen learninghave not been feelinghave been tryinghas been typinghave been reflectinghave been waitinghas been writinghas been makinghave been doing