2013牛津译林版选修7Unit 2“Fit for life”课件3.pptVIP

Aspirin has saved many people’s lives by reducing fever and helping stop p____. Lawrence Craven introduced the 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 help people with diabetes. 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________ to purify it to be a medicine. Due to its widespread use, 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.  Difficult points Not only has aspirin proved vital for reducing fever and helping stop pain,but there are also other things that aspirin can help with. Line18-line 19 此句是not only…but also …结构. Not only …but also 连接两个并列分句。当not only 位于句首时，not only 后分句的主语和谓语要部分倒装。 Not only is this young man clever but also he is hardworking. Not only had the garage overcharged me, but they hadn’t done a very good repair job either. Not only did he speak more correctly,but he spoke more frequently. Not only was the area hit by an expected heavy rain,but some bridges were also washed away. 3. …and in 1977, a study carried out in the USA showed that aspirin could prevent strokes. Lines23-24 1) Chinese astronauts ____________ the mission in space exploration successfully. 2) Once a plan is made, it should __________ no matter how difficult it is. carry out; carry away; carry on; carry through; carry off They are ___________ urgent repairs. Marsha got so __________ when arguing with her husband that she hit him. Jean _________ all the prizes. Even after the music started they ___