Unit2Fitforlife.doc
3页M7Unit 2 Fit for lifePeriod 2-3 Reading Teaching aims and demands: 1. Enable the students to master the usage of new words and phrases 2. Enable the students to know development of the two medicines . 3. To help the students to improve their reading , speaking ability Teaching important and difficult points: 1. Help the students to improve their listening ,reading and speaking ability2. Help the students master the reading strategy . 3. Inform them of more about the two medicines. Teaching aids: the multimedia and the blackboard Teaching methods: listening and speaking pair work and group workTeaching procedures: Step 1.Lead-in: A free talk with students: ⑴. Have you ever taken aspirin and penicillin? ⑵. How much do you know about the two medicines? ⑶. What other illnesses do they cure? Step 2.Fast reading Read the passage again and answer the following questions: 1. What are the two medicines mentioned in the article? (Aspirin and penicillin) 2. When was penicillin first discovered? (In 1928.) 3. What award did Fleming, Florey and Chain share? (The Nobel Prize.) Step3. Detailed reading Ask the students to read the passage again carefully and answer the detailed questions 1. When did people find that drinking a special tea could reduce fever and pain? (About 2,500 years ago) 2. When was aspirin first made? ( In 1897) 3. What other things can ASA help with besides reducing fever and pain? (It can also help reduce the risk of heart attacks by thinning blood, prevent a stroke, reduce the risk of colon cancer, increase the length of people‟s lives and help with diabetes.) 4. Where did Alexander Fleming find penicillin? (In the mould that killed bacteria) 5. What illnesses can penicillin be used to treat? (It can be used to treat bacteria illnesses and other illnesses including pneumonia.) 6. What difficulties did Fleming have in developing penicillin as a drug? (First he was unable to find a procedure to make penicillin pure enough to work as a medicine. Second, it was difficult to produce penicillin in the ample quantities needed to be effective.) Step4. Further reading and fill in the form.Effects of aspirinReduce fever Help the body to stop pains Reduce the risk of heart attacks Prevent a stroke and help diabetes Reduce the risk of colon cancer Increase the length of people’s livesEffects of penicillinHelp in treating wounds and infections Treat other illness including pneumonia Step 5. Learning reading strategy Ask the students to read the Reading Strategy of the article and ask them to focus on the three major skills of understanding medical terms. Step 6 Practice (1)Suppose you are aspirin or penicillin, tell us your development and what influence do you have on our lives according to the passage. (2)Suppose you are Fleming, describe how you found penicillin. Step 7 Discussion: ⑴. What would the world be like if the two medicines had not been discovered ? ⑵. Do you believe that “wonder drug” will be invented to treat diseases like AIDs in the future? Language points: 1. possess vt. 拥有,具有如:The province possesses rich mineral resources. 该省拥有丰富的矿藏。
2. trial n. 试验 e.g. The trials show that smoking will do harm to people. 试验显示抽烟对人体有害 短语in form/in the form of… 以……形式如:Nowadays, many books are available in electronic form. 如今,很多书都有电子版 3. vital adj. 极其重要的,必不可少的 当它作表语并后接从句时,从句中的谓语要用“(should)+动词原形”的形式如:It is vital that every piece of equipment (should) be checked before the experiment. 实验之前检查所有设备是至关重要的 4. try something out on 在……上试验某物如:The drug has not been tried out on humans yet. 这种药物尚未进行过人体试验 5. circulate vi.& vt. 循环;传播,散布;传递,传阅 e.g. The document was previously circulated in New York at the United Nations. 这份文件先前在纽约的联合国总部传阅过。
Cooking odors can circulate throughout the entire house. 做饭的香味可以传到家里的各个角落 6. effective adj. 有效的;实际的,事实上的;生效的 Simple antibiotics are effective against this organism. 一般的抗生素能够有效对抗这种微生物 They have had effective control of the area since the security forces left. 自从安全部队撤离后,他们实际上控制了该地区 7. The new rules will become effective in the next few days.7新规定将在几天后生效 Step 8. Homework: ⑴Write a brief introduction to the two medicines. ⑵Finish the exercises in the workbook 。





