问题 实验题

米勒的模拟实验开创了生命起源研究的新途径。你能对他的实验过程进行总结吗?(每题2分,共计6分)

(1)火花放电的作用是                             

(2)向装备内输入气体主要是                             

(3)米勒得出的结论是                                 

答案

(1)模拟闪电和宇宙射线给混合气体提供能量

(2)氨、氢、甲烷和水蒸气等

(3)在类似于原始地球的条件下,无机小分子可以生成有机小分子

该题考查的是米勒的模拟实验,用甲烷、氨、氢和水蒸气模拟原始大气,电极放电模拟闪电,最后生成了氨基酸,说明了在原始地球条件下可产生氨基酸。

阅读理解

People fell in love with Elizabeth Taylor in 1944, when she starred in National Velvet-the story of Velvet Brown, a young girl who wins first place in a famous horse race, At first, the producers of the movie told Taylor that she was too small to play the part of Velvet. However, they waited for her for a few months as she exercised and trained—and added three inches to her height in four months! Her acting in National Velvet is still considered the best by a child actress.

Elizabeth Taylor was born in London in 1932. Her parents, both Americans, had moved there for business reasons. When World War II started, the Taylors moved to Beverly Hills, California, and there Elizabeth started acting in movies. After her success as a child star, Taylor had no trouble moving into adult(成人)roles and won twice for Best Actress: Butterfield 8(1960) and Who’s Afraid of Virginia Woolf ? (1966)

Taylor’s fame(名声)and popularity gave her a lot of power with the movie industry, so she was able to demand very high pay for her movies. In 1963, she received $1 million for her part in Cleopatra—the highest pay received by any star up to that time.

Elizabeth Taylor is a legend (传奇人物) of our time. Like Velvet Brown in National Velvet, she has been lucky, she has beauty, fame and wealth. But she is also a hard worker. Taylor seldom acts in movies any more. Instead, she puts her time and efforts into her businesses, and into helping others — several years ago, she founded an organization that has raised more than $40 million for research and education.

小题1: The producers didn’t let Taylor play the part of Velvet at first because they thought she ____.

A.was small in size

B.was too young

C.did not play well enough

D.did not show much interest小题2: What Elizabeth Taylor and Velvet Brown had in common was that they were both _____.

A.popular all their lives

B.famous actresses

C.suecessful when very young

D.rich and kind-hearted小题3:Taylor became Best Actress at the age of          .

A.12

B.28

C.31

D.34小题4:In her later life , Elizabeth Taylor devoted herself to             .

A.doing business and helping others

B.turning herself into a legend

C.collecting money for the poor

D.going about research and education work

多项选择题