Unit 3 Grammar and usageppt课件-（2020）新牛津译林版高中英语选择性必修第二册.pptx

1、Grammar and usage Present perfect continuous tenseUnit 3 Fit for lifePage 34Read and complete the table.Before having the new robotic hand The girl began to 1. _ after losing her right hand in a car accident two years ago. The old artificial hand could not help her much because 2. _With the new robo

2、tic hand The girl can 3. _ and hold on to small things. The new robotic hand is capable of 4. _ The new robotic hand looks very lifelike with 5. _Over the past three months The girl has rediscovered old hobbies. The girl has become more 6. _withdraw into herself it didnt feel like part of hermove he

3、r individual fingers feeling varying degrees of pressure special rubber used on the outside confident and outgoingl be equipped withl withdraw into oneself l lead a normal lifel hold on tol more amazingly l be capable of doing sth.l be grateful for .l open up new possibilitiesUseful ExpressionsFind

4、the sentences using the present perfect continuous tense.1. Scientists have been making 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. ., I have been cooking for my family again since I

5、got my new hand. We use the present perfect continuous tense to talk about an action that started in the past and is still continuing now, or an action that has just finished but is still connected with (1)_ (the past/ the present/ the future) in some way. The verb form of the present perfect contin

6、uous tense is “(2)_ ”. the presenthas/ have been doingWorking out the rulesWorking out the rulesFill in the blanks with proper and correct forms of the verbs.1. Since last month, George, along with some of his former classmates, _ (desire) to have a 20-year gathering during this summer holiday.2. Th

7、e number of visitors _ (rise) steadily since the reopening, despite a sharp decline compared to normal years. 3. A recent study has found that the number of smokers _ (increase) sharply over the past five years. 4. We _ (try) to make our environment more beautiful since the time humankind started ga

8、rdening.has been desiringhas been risinghas been increasinghave been trying 5. Today I _ (photograph) a crocodile swimming close to our boat, the Kimberley Quest, all day. 6. Mr. Smith _ (overwork) these days. I think he should take a holiday before he burns out. 7. Since arriving in space, the WISE

9、 telescope _ (circle) the Earth, held by gravity in a polar orbit (this means it crosses close to the north and south poles with each lap(一圈一圈).8. Excuse me, Madam. Ellen, a journalist from the Daily Mail _ (phone) all day. Could you speak to him now?have been photographinghas been overworkinghas be

10、en circlinghas been phoning Fill in the blanks with proper and correct forms of the verbs.Applying the rulesB 1Complete the sentences with the correct forms of the verbs in the brackets. Applying the rules1. I _ (reflect) on the article I read about ancient medicine all day.2. I _ (wait) for two hou

11、rs to see the doctor but it is still not my turn yet.3. My mother _ (write) a report on the new treatment all morning.4. The company _ (make) herbal medicines for more than 100 years.5. Scientists _ (do) research on the disease since it was first discovered in the early 20th century.have been reflec

12、tinghave been waitinghas been writinghas been makinghave been doingApplying the rulesB 2Below is an article about robotic limbs. Circle the correct expressions to complete it. Applying the rulesIt (1) that over 30 million people worldwide have lost arms or legs, and many of them fail to get the help

13、 that they need. For some time, they (2) better-quality artificial limbs. Fortunately, one exciting new advance could help these physically disabled people lead a normal life again: robotic limbs.Over the last few years, scientists (3) new kinds of artificial limbs to help people overcome their disa

14、bilities. Bobotic limbs can do much more than conventional artificial limbs. Some of the earliest artificial limbs were made of wood and leather, and until recently, artificial limbs (4) basic functions. With the advancement in robotic technology, articficial limbs can now perform much more complex

15、tasks and come closer to real human limbs. Not only can they make a much wider range of movements, but they can also be controlled directly by the brain and feed sensory information back into it.Applying the rulesDavid Jones is one of a team of scientists devoted to making even better robotic limbs.

16、 “We (5) everything we can to advance this technology and we will not take out a patent on it,” said David. “Hopefully, more and more people in need of robotic limbs will be equipped with them and enjoy a higher quality of life.”Intensive readingQuestions:1. What were some of the earliest artificial

17、 limbs like?2. What can robotic limbs do?3. Why did David Jones say they would not take out a patent on the technology of robotic limbs?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 c

18、loser to real human limbs and can 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 i

19、n need of robotic limbs would be equipped with the limbs and enjoy a higher quality of life.Applying the rulesWrite a short summary of the article in B2 using the present perfect continuous tense.Applying the rulesOver the last few years, scientists have been developing new kinds of artificial limbs

20、 to replace the traditional ones, some of which only served basic functions. People who have been hoping for better-quality artificial limbs will hopefully be equipped with robotic limbs which can perform much more complex tasks and come closer to real human limbs. Besides, one of the scientists who

21、 have been doing everything to advance the technology of robotic limbs said they would not take out a patent on it, hoping more people in need of them will enjoy a higher quality of life.Topic talkingB 3 A student is interviewing David Jones about the research his team has been doing. In pairs, role

22、-play the interview using the present perfect continuous tense. The beginning has been given. even better robotic limbs than those available at the moment.Is it difficult to develop the new robotic technology?Yes. Our team of scientists most of their time to the project and we everything we can to a

23、dvance this technology.Thats great! Why is this technology important to your personally?Because my goal is to equip as many people as possible who need robotic limbs, and help them enjoy a higher quality of life. For these reasons, we will not take out a patent on the technology, so it will be avail

24、able to anyone who needs it. We have been spreading the news about our technology all over the world.1. Search the information online and write an inspiring life story of a person with disability.2. Complete part C of the workbook on page 70.Page 70 Fill in the blanks with the correct forms of the verbs.1. have been reading 2. have been thinking/ am thinking 3. is learning 4. have written 5. has been taking 6. have been working 7. has been raining 8. Have; been waitingC