阅读P7－9教材课文，选择最佳答案。
1．Why did Qian Xuesen change his major to aviation?
A．Because he was not interested in his former major.
B．Because he could get a well paid job in the future.
C．Because he felt it his duty to help his homeland.
D．Because the country asked him to do so.
2．What made Qian Xuesen so creative and outstanding according to the passage?
A．His strong interest in art like music and drawing.
B．His research in the United States.
C．His friends' encouragement.
D．His habit of reading a lot.
3．How long did Qian Xuesen stay in the United States?
A．About 15 years. B．About 20 years.
C．About 25 years. D．About 30 years.
4．How was Hawking's own theory proved correct?
A．Fred Hoyle admitted the mistake himself.
B．He worked with others to prove it true.
C．He pointed out and corrected Fred Hoyle's mistake in the maths.
D．Hawking was one of the most famous scientists in physics at the moment.
5．What's the main idea of the passage?
A．Being careful is the key to success.
B．A great scientist is a man who works hard.
C．A great scientist should be hardworking，determined and full of love.
D．As long as a person is intelligent and brilliant，he will make a great scientist.
[答案] 1－5 CABCC
