There is not enough oil in the world now. As time goes by, it becomes less and less, so wh

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 using horses, carriages and bicycles.
In the Second World War, some people didn’t use gas 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(电) to run our cars, but first we must make the electricity! Some countries have coal(煤) 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. 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?
【小题1】When might people have to go back to using 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.【小题2】What did some people use to make gas in the Second World War?A．Water.B．Coal.C．Wood and plants.D．Tides.【小题3】How many ways are suggested to make electricity in the passage?A．2.B．5.C．4.D．3.【小题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.【小题5】The passage is mainly about .A．how to run our carsB．what to do when oil runs outC．different types of gasD．the ways to make electricityB

(答案→)B 解析：【小题1】根据第一段so what are we going to do when it runs out? Perhaps we will go back to using horses, carriages and bicycles.描述,可知选B【小题1】根据第二段In the Second World War, some people didn’t use gas made from petroleum(石油) in their cars. They made gas from wood and plants instead.描述,可知选C【小题1】根据短文描述,可知作者主要介绍了三种发电方法,火力发电,水利发电和潮汐发电.故选D【小题1】根据第二段we need our trees for other things, too.描述,可知选B【小题1】根据第一段及下文描述,可知本文主要是说如果石油用完后,我们改怎么办.故选B

对的，就是这个意思