Development

·In 1897, aspirin was invented by

(1)a_European_chemist．

·In 1900, aspirin was sold in shops in the form of (2)tablets．

·In 1971, it was proved that aspirin could reduce the risk of (3)heart_attacks．

·In 1977, a study，carried out in America showed aspirin could(4)prevent_strokes．

·In 2003, a Chinese doctor found that aspirin could reduce

(5)blood sugar levels．

·In 1928, penicillin (6)was_discovered by Fleming.

·In 1940, two other scientists managed to make and test the new drug (7)in_large_quantities.

·In 1944, (8) mass production of penicillin began.

·In 1945, the three scientists (9)shared the Nobel Prize in Medicine for their work. Conclusion Both of these medicines have saved millions of people's lives and have proved (10)beneficial_to_mankind since they were invented. 　　

　　Ⅲ.Study­reading

　　Analyze the following difficult sentences in the text.

　　1．It was in 1897 that a European chemist called Dr Felix Hoffmann produced aspirin from this chemical.

　　[句式分析]

　　[尝试翻译]　1897年一个叫费利克斯·霍夫曼的欧洲药剂师用这种化学物质制成了阿司匹林。

　　2．Not only has aspirin proved vital for reducing fever and helping stop pain, but there are also other things that aspirin can help with.

　　[句式分析]　本句中not only ...but also ...连接两个并列分句。因not only放在句首，故其所在的分句使用了倒装结构。that aspirin can help with是定语从句，修饰other things。

　　[尝试翻译]　阿司匹林不仅被证明对于退烧、止痛必不可少，而且还有其他用途。

3．It astonished him to see the bacteria surrounding the mould dead, which meant that the mould had killed them.