问题 问答题

卡尔文用小球藻进行实验,将其装在一个透明的密闭容器中,通过一个带有开关的通气管向容器中通入CO2,密闭容器周围有光源,通过电源开关来控制光照。

实验二:在研究固定CO2的化合物时,停止CO2供应,结果发现C5的含量快速升高,由此可推测出()。

答案

参考答案:

固定CO2的物质是C5

阅读理解

The most exciting kind of education is also the most personal. Nothing can exceed (超越) the joy of discovering for yourself something that is important to you! It may be an idea or a bit of information you come across accidentally—or a sudden insight, fitting together pieces of information or working through a problem. Such personal encounters are the “payoff” in education. A teacher may direct you to learning and even encourage you in it—but no teacher can make the excitement or the joy happen. That's up to you.

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A research paper, assigned in a course and perhaps checked at various stages by an instructor, leads you beyond classrooms, beyond the texts for classes and into a process where the joy of discovery and learning can come to you many times. Preparing the research paper is an active and individual process, and ideal learning process. It provides a structure within which you can make exciting discoveries, of knowledge and of self, that are basic to education. But the research paper also gives you a chance to individualize a school assignment, to suit a piece of work to your own interests and abilities, to show others what you can do. Writing a research paper is more than just a classroom exercise. It is an experience in searching out, understanding and synthesizing(综合), which forms the basis of many skills applicable(可利用的) to both academic and nonacademic tasks. It is, in the fullest sense, a discovering of an education. So, to produce a good research paper is both a useful and a thoroughly satisfying experience!

To some, the thought of having to write an assigned number of pages, often more than ever produced before, is upsetting. To others, the very idea of having to work independently is threatening. But there is no need to approach paper assignment with anxiety, and nobody should view the research paper as an obstacle to overcome. Instead, consider it a goal to accomplish, a goal within reach if you use the help this book can give you.
57.According to the writer, personal discoveries____________.
A.will give one encouragement and direction
B.are helpful in finding the right information
C.are the most valuable part of one's personal education
D.will help one to successfully complete school assignments
58.It can be inferred from the passage that writing a research paper gives one chances_________ .
A.to fully develop one's personal abilities
B.to use the skills learnt in the classroom
C.to prove that one is a productive writer
D.to demonstrate how well one can accomplish school assignment
59.The writer argues in the passage that____________.
A.one should explore new areas in research
B.one should trust one's own ability to meet course requirements
C.one should consider research paper writing a pleasure, not a burden
D.one should use all one's knowledge and skills when doing research
60.What will probably follow this passage?
A.How to write a research paper.
B.The importance of research in education.
C.How to make new discoveries for oneself.
D.The skill of putting pieces of information together.
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