Unit 3 Grammar and usage（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、zUnit 3 Fit for lifeUnit 3 Fit for life-present perfect continuous tenseScientists have been trying to develop effective medicines to prevent and cure COVID19.COVID19 vaccine Nucleic Acid TestRead the personal account and answer the following questions(P34)1.What was the change in the girls personal

2、ity after the car accident?Why?She began to withdraw into herself,believing she would never be able to lead a normal life.2.What made her life begin to take a good turn?Scientists have been making great progress in robotic technology in recent years,and their work on robotic limbs has really changed

3、 her life.Read the personal account again and fill in the following table.Before having the new robotic hand The girl began to_ after losing her right hand in a car accident two years ago.The old artificial hand could not help her because _With the new robotic hand The girl can _ and hold on to smal

4、l things.The new robotic hand is capable of_ The new robotic hand looks very lifelike with_Over the past three months The girl has rediscovered old hobbies.The girl has become more_withdraw into herselfShe could not do simple things like getting dressedmove her individual fingersfeeling varying degr

5、ees of pressurespecial rubber used on the outsideconfident and outgoingBelow is a personal account given by a girl who is equipped with a robotic hand.Find the sentences that use the present perfect continuous tense and fill in the box below.present perfect continuous tensez1.Scientists have been ma

6、king great progress in robotic technology in recent years,.2.Over the past three months I have been testing out the limits of what I can do with my new hand,.3.For example,I have been cooking for my family again since I got my new hand.4.I have been waiting for this chance ever since my accident,.th

7、e presenthas/have been doing Focus on 基本用法基本用法Present Perfect Continuous Tense 现在完成进行时现在完成进行时 z1.an action that started in the past and is still continuing now(1)-Where have you been?-Ive been watering flowers in the yard.(2)I have been working on the computer for hours.(3)She has been waiting for y

8、ou all day.z(1)You dont look well.Have you been working too hard?(2)You have been reading newspapers.Newspapers are lying everywhere in your room.2 an action that has just finished but is still connected with the present.z3.express a kind of emotion(1)It has been raining since last Sunday.(2)She has

9、 been persuading me out of the plan.(3)You have been giving me everythingz4.adverbial of time:all the time,this week,all night,these few days,for.,since.(1)A private detective has been tailing him for several weeks.(2)John loves outdoor activities-he skis in winter and has been fishing since he was

10、a child.1.I _(reflect)on the article I read about ancient medicine all day.2.I _(wait)for two hours to see the doctor but it is still not my turn yet.3.My mother _(write)a report on the new treatment all morning.She hopes to finish it tonight.4.The company _(make)herbal medicines for more than 100 y

11、ears.5.Scientists _(do)research on the disease since it was first discovered in the early 20th century.Complete the sentences with the correct forms of the verbs in the brackets.P35 B1have been reflectinghave been waitinghas been writinghas been makinghave been doingBelow is an article about robotic

12、 limbs.Circle the correct expressions to complete it.P35 B2Read the article about robotic limbs again and answer the following questions 1.What were some of the earliest artificial limbs like?They were made of wood and leather,and served only basic functions.2.What can robotic limbs do?They come clo

13、ser to real human limbs and perform much more complex tasks.They can even be controlled directly by the brain and feed sensory information back into it.3.Why did David Jones say they would not take out a patent on the technology of robotic limbs?Because they hoped that more and more people in need o

14、f robotic limbs would be equipped with the limbs and enjoy a higher quality of life.A student is interviewing David Jones about the research his team has been doing.In pairs,role-play the interview using the present perfect continuous tense.The beginning has been given.Student:What have you been doi

15、ng,Dr Jones?David Jones:We have been developing Individual activityConsolidation Fill in the blanks with the correct forms of the verbs in the brackets.(P70)1.I _(read)books about positive thinking recently and I will write about it in my article.2.-Will you apply to a university in Beijing?-I haven

16、t decided yet.I _(think)about it,though.3.-Has Alice found a new job yet?-Not yet,but she_(take)job interviews for weeks.4.Im confident that our team will win the competition because we_(work)hard for almost a year.have been reading have been thinkinghas been taking have been working5.It_(rain)heavi

17、ly all day.I wish it would stop 6.-Sorry Im late._you _ (wait)long?-No,I have just arrived.7.-Anna,you look so tired!-You know,all morning I _(move)my things to my new office on the fifth floor.has been rainingHave been waitinghave been moving1.Review the learning paper2.Finish the exercises in Learning English.H