科目: 來(lái)源:同步題 題型:閱讀理解
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科目: 來(lái)源:同步題 題型:閱讀理解
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科目: 來(lái)源:同步題 題型:閱讀理解
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科目: 來(lái)源:同步題 題型:閱讀理解
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科目: 來(lái)源:0103 模擬題 題型:閱讀理解
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科目: 來(lái)源:福建省模擬題 題型:閱讀理解
閱讀理解。 | ||
degree of damage present, expect to see performance degradation (降級(jí)) in the range of 10% to 60%. A multimeter (萬(wàn)用表) can be used to test the panel before buying. If the panel's free, take it anyway. It could still be useful in a home solar project. A solar panel is really nothing but a box serving as a container for a large group of solar cells. Factory second solar cells are usually sold on eBay at a small part of their regular cost. The cells come in a variety of sizes. You will need to figure out how much power a single cell produces to determine how many will need to be wired together to form an array. A simple search of the Internet will show numerous sites detailing home solar panel projects. Do-it-yourself lovers are generally quite generous in supply photographs of their work and description of what went wrong and right with the project. Getting cheap solar panels with slight imperfections either used or through sales of factory seconds, is a perfect solution for home-built renewable energy projects. The high number of solar lovers online provide a wealth of useful information. Only limited skills are required, plus an understanding of the basic wiring involved. All are well within the talents of almost any home handyman. Beyond the satisfaction of having completed the project, you'll come away with a functional solar panel that will be a source of power for use around the house or at remote locations. Solar energy systems are quickly becoming more popular with homeowners as prices continue to decline. | ||
1. The author writes the passage to introduce _____. | ||
[ ] | ||
A. ways of finding cheap solar panels B. ways of saving energy C. a way of making a solar panel D. a home-built energy system | ||
2. What does the phrase "factory seconds" in the passage refer to? | ||
[ ] | ||
A. Second-hand factory products. B. Cheap but perfect factory products. C. Faulty factory solar cells. D. The second best factory solar cells. | ||
3. From Paragraph 5, we can learn about home-built energy projects that _____. | ||
[ ] | ||
A. none of them are beyond home handymen B. a lot of useful information is available on the Internet C. a perfect solution is to get cheap and perfect solar panels D. understanding electrical wiring is not necessarily needed | ||
4. What is the author's attitude towards the future of solar energy systems? | ||
[ ] | ||
A. Optimistic. B. Pessimistic. C. Indifferent. D. Doubtful. |
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科目: 來(lái)源:北京月考題 題型:閱讀理解
For some time past it has been widely accepted that babies-and other creatures-learn to do things because
certain acts lead to "rewards"; and there is no reason to doubt that this is true. But it used also to be widely
believed that effective rewards, at least in the early stages, had to be directly related to such basic physiological
(生理的) "drive" as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort
of physical comfort, not otherwise.
It is now clear that this is not so. Babies will learn to behave in ways that produce results in the world with
no reward except the successful outcome.
Paousek began his studies by using milk in the normal way to "reward" the babies and so teach them to
carry out some simple movements, such as turning the head to one side or the other. Then he noticed that a
baby who had enough to drink would refuse the milk but would still go on making the learned response with
clear signs of pleasure. So he began to study the children's response in situation where no milk was provided.
He quickly found that children as young as four months would learn to turn their heads to right or left if the
movement"switched on a display of lights-and indeed that they were able to learn quite complicated turns to
bring about this result, for instance, two left or two right, or even to make as many as three turns to one side.
Papousek's light display was placed directly in front of the babies and he made the interesting observation
that sometimes they would turn back to watch the lights closely although they would "smile and bubble" when
the display came on. Papousek concluded that it was not primarily the sight of lights which pleased them, it
was the success that they were achieving in solving the problem, in mastering the skill, and that there exists a
fundamental human urge to make sense of the world and bring it under intentional control.
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科目: 來(lái)源:0112 期中題 題型:閱讀理解
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科目: 來(lái)源:0110 月考題 題型:閱讀理解
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科目: 來(lái)源:同步題 題型:閱讀理解
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