听一段对话,回答第11~12小题。
() 11. Who are the two speakers talking about?
A. Huang Xuhua.
B. Qian Xuesen.
C. Yang Zhenning.
() 12. What impressed He Hui most about the man?
A. His educational theory.
B. His death.
C. His advice.

11.B 12.C

听第一篇短文，回答第13～15小题。

（）13. A. Beijing B. London C. Venice
（）14. A. friend B. father C. brother
（）15. A. 3 B. 10 C. 30

13.C 14.B 15.B

听第二篇短文，回答第16～20小题。
（）16. Where was Isaac Newton born?
A. In England. B. In Germany. C. In France.
（）17. What did Newton love to do as a boy?
A. Play sports. B. Draw pictures. C. Think and ask questions.
（）18. What made Newton wonder about why things always fall down?
A. A falling apple. B. A rainy day. C. A flying bird.
（）19. What did Newton find out?
A. The law of gravity(重力). B. How to grow apples. C. How to build houses.
（）20. What is the best title for this passage?
A. How apples grow B. Isaac Newton, a great scientist
C. The history of science

16.A 17.C 18.A 19.A 20.B