Unit 2 Reading (1) Unit 2 Reading (1) Two life-saving medicines.

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Presentation transcript:

Unit 2 Reading (1) Unit 2 Reading (1) Two life-saving medicines

When people fall ill, what will they do? take medicine have an injection

 Do you know what are they? aspirin penicillin

How much do you know about the two medicines?( as far as you know what can these two medicines be used for?) Lead-in

Skimming Read the first passage about aspirin quickly and try to find the answers to the following questions:

1.When did people find that drinking a special tea could reduce body pains? In About 3,500 years ago. 2. When was aspirin first made from other chemicals?

3. When was aspirin first sold as a standardized tablet? In What did a Chinese doctor find about aspirin? In 2003, a Chinese doctor, Yuan Minsheng, found that aspirin could reduce blood sugar levels and, therefore, help people with diabetes.

Fill in the boxes. sold in shops as a tablet World War II proved to reduce the risk of heart attacks used to reduce blood sugar levels used to prevent strokes

A.1914; World War I B. 1928; World War II C. 1929; Vietnam War I D. 1945; World War II 1. Penicillin was discovered in __and saved many lives in___. Go through the part about Penicillin quickly and choose the best answers

A. Alexander Fleming and Howard Florey B. Ernst Chain and Yuan Minsheng C. Alexander Fleming and Lawrence Craven D. Howard Florey and Ernst Chain 2. ____contributed to the mass production of penicillin.

Development of penicillin first discovered by Alexander Fleming made and tested in large quantities mass production began 1945 won the Nobel Prize because of the discovery

Task-based reading Fill in each blank with no more than one word according to the text.

Names of the medicines Their (1)__ and development Their applications AspirinNearly 3,500years ago,people used with special (2)____ to reduce body pains and fever. About 2,500 years ago,Hippocrates used three barks to make juices for the same (3)_______. It was(4)_____ on patients in the form of powder in It came onto the (5)_____ in 1900 and later became the best-selling medicine. Provide pain(6)______ for patients. Reduce fever and blood sugar levels. Help blood (7)___ better and reduce the risk of heart attacks and some cancers. Increase the length of people’s lives. invention/discovery chemical effect tried/tested market relief circulate

Penicillin It was discovered by Alexander Fleming by (8)____ when he was doing research. Howard Florey and Ernst Chain made it possible to make and test the drug in large (9)______. It was mass-produced in It palyed an important (10)____ in saving lives during World War II. Treat illness caused by bacteria accident/chance quantities/numbers part/role

Class activity (1) Suppose you are a chemist at a drugstore. Some customers want to buy aspirin, but they know little about the use of aspirin. Now please recommend it to them. for instance/ for example besides/ in addition/ apart from what’s more/ further more

Class activity (2) Further discussion: Penicillin is very useful in many ways. But in fact, it is not widely used in many hospitals in China. Why? Please list some possible reasons. cheap bring little profit to the hospital can’t be perfectly purified has some side effects

 打开药柜  推荐做某事  降热镇痛  以粉末的形式  标准片剂  吉尼斯世界记录 大全  最畅销的镇痛药  降低心脏病的发 病风险  忽视这个报告 open up medicine cupboard recommend doing sth. reduce fever and pain in powder form in powder form a standardized tablet Guinness book of records Guinness book of records the best-selling painkiller the best-selling painkiller reduce the risk of heart attacks reduce the risk of heart attacks ignore the report ignore the report

11. 血液稀释药剂 12. 防止中风 13. 血管爆裂 14. 延长人的寿命 15. 降低血糖 16. 杀菌药 17. 在当代社会 18. 在另外一种细菌上 做试验 19. 治疗小伤口 20. 使用新的化学技术 来提纯 a blood-thinning medicine prevent a stroke blood vessels burst increase the length of people’s lives reduce blood sugar levels bacteria-killing medicine in contemporary society try sth. out on another bacterium treat a minor wound use new chemical techniques to purify sth.

21. 大量生产 22. 归因于 23. 一个实现的梦想 24. 领会到 25. 手术室 26. 给.. 减轻痛苦 27. 对 … 是根本的, 至关重要的 28. 知道有 produce sth in large quantities mass production due to /owing to a dream come true figure out an operating theatre bring relief to be fundamental to doing sth know of

Paraphrase the following sentences 1. If you open up any medicine cupboard in the world, there is a high probability that you will find aspirin and penicillin. (lines 1~2) …… it is quite possible/likely/probable that you will find aspirin and penicillin. 2. It was in 1897 that a European chemist … (Line 11)

3. Not only has aspirin saved many people’s lives by reducing fever and helping stop pain, but there are also other things that aspirin can help with. (lines 20~21) Aspirin has not only saved many people’s lives by reducing fever and helping stop pain, but it can also help with other things.

4. However, it was not until World War II that two other scientists managed to use new chemical techniques to purify it. (lines 46-48) However, two other scientists did not However, two other scientists did not manage to use new chemical techniques manage to use new chemical techniques to purify it until World War II. to purify it until World War II. However, not until World War II did However, not until World War II did two other scientists manage to use new two other scientists manage to use new chemical techniques to purify it. chemical techniques to purify it.

1) 直到她的孩子长大她才得以回去工作。 She was not able to go back to work until her child grew up. Not until her child grew up was she able to go back to work. It was not until her child grew up that she was able to go back to work.

2) 直到 20 世纪 90 年代电脑才在学校里开始 被广泛使用。 It was not until the 1990s that computers began to be widely used in the schools. Not until the 1990s did computers begin to be widely used in the schools. Computers didn’t begin to be widely used in the schools until the 1990s.

5. ……, it was over a decade before someone else turned penicillin into the great drug of the 20 th century. =……., more than ten years later, someone else turned penicillin into the great drug of the 20 th century. It is + 一段时间 + before 从句

 It was several hours before we reached the village.  过了几个小时我们才到达村庄。  2) It will be a long time before we meet again.  要过很长时间我们才能见面。  3) It won’t be long before we meet.  没多久我们就能见面了。