(
课件网) Look at the pictures on page 17. Would you like to do any of the jobs shown in the pictures? New words drug revolution medicine counter likely beneficial invent chemical chew possess physician chemist risk tree bark contain trial distribute powder tablet form pain relief vital potential stroke diabetes What are the two medicines mentioned in the article? When was penicillin first discovered? What did Fleming, Florey and Chain share? When did people find that drinking a special tea could reduce fever and pain? When was aspirin first made? What is the main idea of paragraph 3? A. The history of aspirin B. Aspirin can reduce heart attack C. Other functions of aspirin besides reducing pain and fever. √ It can also help (to) reduce the risk of heart attacks prevent strokes reduce the risk of some cancers increase the length of people’s lives reduce blood sugar level and help with diabetes. language points focus on(L1) millions of (L4) prove beneficial to(L4) chew on sth. (L8) in powder form (L15)/in the form of (L16) pain relief (L17) have the potential to do(L21) reduce the risk of (L21) carry out (L22) reduce... by... (L26) help do sth. (L27) Sentence analysis If you open up any medicine cupboard or go to any medicine counter in the world, it is likely that you will find aspirin and penicillin. (L2-3) It’s likely that… 很有可能... likely adj. 可能的 反： unlikely sb. be likely to do sth. 类似结构： It is probable/possible that… It’s probable/possible for sb. to do sth. There is possibility that... Nearly 3500 years ago, people chewed on leaves or drank a kind of tea made from leaves possessing a special chemical to reduce body pains and fever. (L8-10) 主干：people chewed on leaves or drank a kind of tea 定语：made from leaves 修饰tea ; possessing a special chemical修饰leaves. 目的状语：to reduce body pains and fever It was in 1897 that a European chemist called Dr. Felix Hoffmann produced aspirin from this chemical. (L12-13) It is/was + 被强调部分+that... 强调a European chemist called Dr. Felix Hoffmann -- It was a European chemist called Dr. Felix Hoffmann that produced aspirin from this chemical in 1897. Not only has apirin proved vital for reducing fever and helping stop pain, but there are also other things that aspirin can help with. (L18-20) not only... but (also)... 后所连接的词性必须对等。 not only 连接两个分句，放于句首时，此分句要用部分倒装。 He spoke not only more correctly, but more easily. The poor man not only had been fined, but also had been sent to prison. It is vital that... “...是至关重要的”；从句中的谓语动词要用 “(should)+动词原形” It is vital that every piece of equipment (should) be checked before the experiment 4.In a mould that killed bacteria. 5.It might be used to treat illnesses caused by bacteria. 6.First he was unable to find a proceduce to make a penicillin pure enough to work as a medicine. Second, it was difficult to produce penicillin in the a ... ...
