Ask a lot of people what the purpose of a telescope is, and chances are they will say something like, "to make distant objects look bigger." I'm a guest speaker at local schools, and I always get that answer or something close to it when I ask that question.
Is the basic role of a telescope really to make things look bigger? Take this test. Step outside on a clear night from a brightly lit room. See anything? Probably not. But it gets better after a few minutes, doesn't it? In fact, after a while, you'll wonder why you didn't see all those stars before. What made it better? Did you change the magnification (放大率), or make the outside size of anything change? Of course not. What you did change, was the amount of light your eyes gathered. So, the basic role of a telescope is to gather light.
The more light a telescope gathers, the more powerful it is. And remember, telescope apertures (光圈) are circles, and the areas of circles increase with the square of the radius (范围), so moving up in aperture (光圈), even a little can have big results. Although the size of a 7X50 binoculars (双眼望远镜) looks about the same as a 7X35's, the 7X50 binoculars gather over twice the light of the 7X35 binoculars do. So, you should buy the biggest telescope you can get.
60. The test is mentioned in the second paragraph to show ________.
A. the basic role of a telescope is to make distant objects look bigger
B. eyes need a period of time to get over the darkness
C. the basic role of a telescope is to gather light
D. the similarity between people's eyes and telescopes
61. What is the main point the writer is trying to make in the last paragraph?
A. The bigger the telescope you buy is, the better.
B. The power of a telescope depends on the square of the radius.
C. The difference between a 7X50 binoculars and a 7X35 binoculars.
D. If necessary one had better choose a bigger telescope.
62. The text probably appears in ________.
A. a product introduction B. a science report
C. an advertisement D. a notice
科目：高中英语 来源： 题型：022
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The students are made ______ (ask)a lot of questions in the class.
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科目：高中英语 来源： 题型：022
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When he was a child, he used ______(ask) a lot of questions that had nothing to do with the text.
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科目：高中英语 来源：2011年河南省南阳市高二下学期期末考试英语题 题型：信息匹配
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。
When I walked into the house after school, the first thing I noticed was a box with items I recognized from my dad’s office. When he told me that he was laid off, I thought he was joking. Then I noticed his seriousness and realized he was telling the truth. My father has always been a hard worker. He has prided himself on his career. 1. I
guess I had taken his work for granted.
2. For starters, he was home all the time. It meant my bed had to be made, my room cleaned up, and my homework done right after school. I would come home every day to find him at the computer searching for jobs. 3. He seemed, and how losing his job had affected his self-esteem, though he tried to be optimistic. For the first time, I saw my dad as vulnerable. He asked my brother and me to spend less. I gave up my allowance, which even though it wasn’t much, felt like the right thing to do. I also found a part-time job.
4. He explained that he never wanted to be laid off again, so he was going to start his own business. Day by day, I watched him build it, On evening I asked if he needed help.“Only if it doesn’t interfere with school,” he said.I showed up at his office the next afternoon, and most afternoons after that for two months.
5. The terrible experience for our family taught me how to deal with difficulties. Now I know that through creative problem-solving, I can always find Plan B, ask for help, and take risks. What I have learned from my dad’s understanding of business and his work ethic(信条) are two of the most important lessons I will ever learn, and will be my foundations for success.
A.Providing for our family has been his joy.
B.I made every effort to solve his problems.
C.I began to notice how losing his job had affected him.
D.My father’s unemployment created many changes in our lives.
E.After months of searching, my dad decided to go in a totally different direction.
F.His courage and determination helped him to become successful in his new career.
G.I always knew he was a hard worker, but watching him in action ionfluencedd me a lot.
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科目：高中英语 来源：山东省期末题 题型：听力题
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