问题 单项选择题

如图表示绿色植物体内某些代谢过程中物质的变化,A.B.c分别表示不同的代谢过程。以下表述正确的是()

A.X代表的物质从叶绿体的基粒移向叶绿体的基质

B.b在叶绿体内的囊状结构薄膜上进行

C.a中产生的O2参与c的第二阶段

D.水参与c中第三阶段的反应

答案

参考答案:A

解析:a是光和作用的光反应,产生还原氢和ATP给b光合作用暗反应生成水,X是ATP,由叶绿体的基粒移向叶绿体的基质,A正确;光反应在类囊体薄膜上进行,而暗反应在叶绿体基质中进行,B错。b产生葡萄糖给c,由此可推出c是呼吸作用,水参与第二阶段反应,而氧气参与第三阶段反应还产生12个水分子,这些水分子可以提供给叶绿体进行光合作用生成氧气,故CD错。考点:本题考查光合作用的基本过程、呼吸作用的相关知识,意在考查考生能理解所学知识的要点,把握知识间的内在联系,形成知识的网络结构的能力。

单项选择题
阅读理解

I don’t want to talk about being a woman scientist again. There was a time in my life when people asked constantly for stories about what it’s like to work in a field dominated (controlled) by men. I was never very good at telling those stories because truthfully I never found them interesting. What I do find interesting is the origin of the universe, the shape of space, time and the nature of black holes.

At 19, when I began studying astrophysics(天体物理学), it did not bother me in the least to be the only woman in the classroom. But while earning my Ph.D. at MIT and then as a post-doctor doing space research, the issue started to bother me. My every achievement—jobs, research papers, awards—was viewed through the lens (镜片) of gender (性别) politics. So were my failures. Sometimes, when I was pushed into an argument on left brain versus (相对于) right brain, or nature versus nurture (培育), I would instantly fight fiercely on my behalf and all womankind.

Then one day a few years ago, out of my mouth came a sentence that would eventually become my reply to any and all provocations (挑衅) : I don’t talk about that anymore. It took me 10 years to get back the confidence I had at 19 and to realize that I didn’t want to deal with gender issues. Why should curing sexism be yet another terrible burden on every female scientist? After all, I don’t study sociology or political theory.

Today I research and teach at Barnard, a women’s college in New York City. Recently, someone asked me how many of the 45 students in my class were women. You cannot imagine my satisfaction at being able to answer, 45. I know some of my students worry how they will manage their scientific research and a desire for children. And I don’t dismiss those concerns. Still, I don’t tell them “war” stories. Instead, I have given them this: the visual of their physics professor heavily pregnant doing physics experiments. And in turn they have given me the image of 45 women driven by a love of science. And that’s a sight worth talking about.

小题1:Why doesn’t the author want to talk about being a woman scientist again?

A.She is fed up with the issue of gender discrimination (歧视). 

B.She feels unhappy working in male-dominated fields.

C.She is not good at telling stories of the kind.

D.She finds space research more important.小题2:From Paragraph 2, we can infer that people would attribute (把…归因于) the author’s failures to ________.

A.the burden she bears in a male-dominated society

B.her involvement in gender politics

C.her over-confidence as a female astrophysicist

D.the very fact that she is a woman小题3:What did the author constantly fight against while doing her Ph.D. and post-doctoral research?

A. Lack of confidence in succeeding in space science.

B. Unfair accusations from both inside and outside her circle.

C. People’s fixed attitude toward female scientists.

D. Widespread misconceptions about nature and nurtured.

小题4:What does the image the author presents to her students suggest?

A.Women students needn’t have the concerns of her generation.

B.Women can balance a career in science and having a family.

C.Women have more barriers on their way to academic success.

D.Women now have fewer problems pursuing a science career.