There is not enough oil in the world now. As time goes by, it becomes less and less, so what are we going to do when it runs out? Perhaps we will go back to use horses, carriages and bicycles.
In the Second World War, some people didn’t use gas(气体) made from petroleum (石油) in their cars. They made gas from wood and plants instead. The car didn’t go fast, but they ran, so this was better than nothing. However, in the future, we can’t cut down all our trees to make gas; we need our trees for other things, too.
Besides different types of gas, we can also use electricity to run our cars, but first we must make the electricity! Some countries have coal(煤炭) and they make electricity with that, but we might not always have coal, either. Other countries have big, strong rivers, and they can use the power of water to turn turbines (涡轮机) and make electricity more easily and cheaply.
We are also able to get power from the ocean tides(潮). We put turbines into the mouth of the river. Then the tide comes in, the water turns the turbines and then it goes out, it turns them again.
Which of these ways will be used to run our cars in the future?
1.When might people have to go back to use horses and carriages?
A. When they are poor.
B. When they run out of oil.
C. When they need more exercise.
D. When there aren’t any big trees in the world.
2.What did some people use to make gas in the Second World War?
A. Water B. Coal C. Wood and plants D. Tides
3.How many ways are suggested to make electricity in the passage?
A. 2 B. 5 C. 4 D. 3
4.According to the passage, which of the following statements is True?
A. There is more petroleum than we can use now.
B. Trees are needed for some other things besides making gas.
C. We got electricity from ocean tides in the old days.
D. Gas wasn’t used to run cars in the Second World War.
5.The passage is mainly about _________.
A. how to run our cars
B. what to do when oil runs out
C. different types of gas
D. the ways to make electricity
根据短文内容，用方框中所给词语的适当形式填空，使文章通顺、完整。（每词限用一次）
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interest, as, of, change, meaning, student, cold, feeling, write, color |
“Cool” is a word with many _____1.. Its old meaning is used to express a temperature that is a little bit ____2. As the world has ___3., the word has had many different meanings.
“Cool” can be used to express ____4._ of interest in almost anything.
When you see a famous car in the street, maybe you will say, “It’s cool.” You may think, “He’s so cool,” when you see your favorite singer.
We all maximize the meaning of “cool”. You can use it instead ___5._ many words such __6.__ “new” or “surprising”. Here’s an _7.story we can use to show the way the word is used. A teacher asked her students ___8. about the waterfall they had visited. On one ____9.paper was just one sentence, “It’s cool.” Maybe he thought it was the best way to show he saw and felt.
Can you think of many other words that make your life as ______10. as the word “cool”? I can. And I think they are also very cool.