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Climate is the average weather usually taken over a 30-year time period for a particular region and time period. Climate is not the same as weather, but rather, it is the average pattern of weather for a particular region. Weather describes the short-term state of the atmosphere (大氣).
The climate is changing. Many agreed that climate change may be one of the greatest threats (威脅) facing the planet. Recent years show increasing temperatures in various regions, and/or increasing extremities (極端性) in weather patterns.
Is the Earth getting warmer? Yes! The Earth has warmed by about 1°F over the past 100 years. But why? Well, scientists are not exactly sure. The Earth could be getting warmer on its own, but many of the world’s leading climate scientists think that things people do are helping to make the Earth warmer.
Global Warming may be a big problem, but can you make a difference? Yes! There are several little things you can do to make a difference. Try carpooling. This will help reduce the amount of fossil fuels going into the atmosphere. Whenever you use electricity, you help put greenhouse gases into the air. Turn off lights, the television, and the computer when you are through with them. Also, planting trees is fun and a great way to reduce greenhouse gases. Trees absorb carbon dioxide, a greenhouse gas, from the air. Finally, don’t forget about recycling.
【小題1】Climate is        weather.
A．the same asB．different from
C．a kind ofD．part of
【小題2】 The Earth has warmed by about 1°F over the past 100 years        .
A．only because of human activities
B．but scientists are not exactly sure of the reasons.
C．and we can do nothing to it.
D．and it’s getting warmer on its own
【小題3】Global Warming may be a big problem, but we can do the following things to make a difference except         .
A．carpoolingB．saving electricity
C．cutting down more treesD．recycling
【小題4】What can be the best title of the article?
A．Climate and weather.
B．Weather and climate changing.
C．Climate changing and global warming.
D．Weather and global warming.

【小題1】B
【小題2】B
【小題3】C
【小題4】C解析:
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We know that trees are useful in our everyday life. They   1   us many things, such as wood, oxygen(氧氣), rubber, medicines and many other things. They can   2   tell us a lot about our climate. The following are the reasons. If you cut across a tree, you can   3   that it has many rings. Most trees grow one   4   ring every year. Because of this reason, we know   5   a tree is. A tree over a hundred years old means that it has more than a hundred   6  . When the climate is dry(干燥的) or very cold, the trees do not grow very much and their rings are usually   7  . When it is wet and   8  , the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the    9   changed suddenly. If we look at the rings on the trees, we can   10   about the climate for a hundred years. We can see how our climate is changing today.

【小題1】
A．give B．askC．getD．tell
【小題2】
A．too B．as wellC．eitherD．also
【小題3】
A．hearB．feelC．see D．look
【小題4】
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【小題5】
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【小題6】
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【小題7】
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【小題8】
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【小題9】
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2.A．so                 B．and                  C．while       

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The climate is changing. Many agreed that climate change may be one of the greatest threats (威脅) facing the planet. Recent years show increasing temperatures in various regions, and/or increasing extremities (極端性) in weather patterns.

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