effective.

　　然而，这些传统药物有可能让人出血或引起严重的胃部不适，或者药力太弱以至于发挥不了作用。

　　7．For example, Alexander Fleming was ________ looking for penicillin, ________ was doing research on something else.

　　例如，亚历山大·弗莱明并没有在寻找青霉素，而是在其他事物上面做研究。

　　8．Since it was abnormal for mould to be in that lab dish, something ________ wrong.

　　对于在实验室那个碟子里的霉菌来说是不正常的，所以一定是某些东西变质了。

　　【答案】　1.If so　2.it is likely that　3.It was；that

　　4．Not only；but；also　5.had not been；would have died　6.too；to　7.not；but　8.must have gone

　　　阅读P18－P19课文，并从四个选项中选择最佳答案

　　1．In________， aspirin was sold in powder form to physicians to use with patients.

　　A．1897　 B．1899

　　C．1900 D．1950

　　2．Who is an American?

　　A．Dr.Thun. B．Smith.

　　C．Alexander Fleming. D．Howard Florey.

　　3．Who found penicillin?

　　A．Dr.Thun.

　　B．Alexander Fleming.

　　C．Howard Florey.

　　D．Ernst Chain.

　　4．Why did penicillin become the greatest drug of the 20th century?

　　A．Because it was found in the 20th century.

B．Because it was found by an Australian scientist.