1、高 二 英 語(yǔ),Module 7 Unit 2 Reading Welcome to the unit pure, purify chemical, chemist; bacterium, bacterial,Words that are compound words painkiller blood-thinning heart attack,Words with irregular plural forms: bacteria bacterium acetyl + salicylic,Words composed of chemical names,physician (line 9) _

2、 bark (line 10) _ painkiller (line 19) _ thinning (line 24) _ contemporary (line 37) _ transparent (line 39) _ purify (line 48) _ quantities (line 49) _ widespread (line 50) _,c,e,g,i,a,h,f,d,b,Aspirin has saved many peoples lives by reducing fever and helping stop p_. Lawrence Craven introduced the

3、 idea that aspirin could reduce the r_ of heart attacks by thinning blood. In 1971, Smith and Willis p_ that aspirin was a blood-thinning medicine and a study showed that a chemical in aspirin could prevent a s_. In 2003, a Chinese doctor found that this chemical could reduce blood s_ levels and hel

4、p people with diabetes.,Aspirin,pain,risk,proved,stroke,sugar,Penicillin, discovered by Alexander Fleming in 1928, is c_ to be one of the most important medicines in contemporary s_. Howard Florey and Ernst Chain managed to use new chemical t_ o purify it to be a medicine. Due to its widespread use,

5、 many lives were saved during World War II. Penicillin is also used to treat other illnesses i_ pneumonia. In 1945, Fleming, Florey and Chain s_ the Nobel Prize in Medicine for their work.,Penicillin,considered,society,techniques,including,shared,Summarize (E,P21),1. invented 2. ASA 3. tablet 4. recommended 5.