Unit 2 Fit for life课件14（牛津高中选修7）.pptVIP

Summary aspirin penicillin the history of aspirin the uses of aspirin the history of penicillin the uses of penicillin Two life-saving medicines Consolidation Fill in the blanks with proper words according to the reading material. 3,500 years ago, people (1)c_____ on leaves or drank a kind of tea made from leaves (2)p______ a special chemical to reduce body pains and fever. In 1897, a European chemist produced aspirin from salicylic acid. The first (3)t____ of this medicine took place in 1899 when the (4)p_____ form began to be used with patients. In 1900, it was sold in shops as a (5)t____ which became the(6) best-s____ medicine in the world for pain relief. Penicillin was (7)d_______ by a Scottish scientist in 1928.He thought it might help in treating wounds and illness caused by (8)b______. But it was not until World War II that two other scientists managed to use new chemical techniques to (9)p____ it and then produced it in large (10)q_______. Thanks to it, many lives were saved during World War II. hewed ossessing rials owder ablet elling iscovered acteria urify uantities Answers of activity D: 1. ____ 2. ____ 3. ______ 4. ____ 5. ____ 6. ______ 7. ____ f a d g b c e Answers of activity E: 1. ___________ 2. ____________ 3. ___________ 4. ____________ 5. ___________ 6. ____________ potential effective unable abnormal application sicknesses How can we understand medical terms? ● ● ● Words coming form the same stem Words that are compound words Words with irregular plural forms Words coming from the same stem: medicine, medical; pure, purify; chemical, chemist; bacterium, bacterial Compound words: painkiller best-selling heart attack blood sugar Words with irregular plural forms: bacteria bacterium Unit 2 Fit for Life As we all know, health is very important to everyone. Do you know how to keep healthy? —Let’s warm up right food regular exercise enough sleep quit smoking/drinking When people f