阅读短文，做出选择。Read the passages and make your choice.
Many people in the world live in big cities, which are often dirty and difficult places to live in. So, some cities will get bigger. They will also get higher, and lower, because people will begin to live under the ground as well as in tall buildings. Scientists also say that men can begin to live in cities under the sea, when there is not enough space on the land. Of course, these new cities will be very expensive, and difficult to build, but they are not impossible. Already, some countries are building places to live under the ground so their people can go there if there is a new war. There are underground cities in Switzerland and China, built by the government to help some of the people live after a great war.
But will people change if they live under the ground for a long time？For example some fish go blind if they live in the dark for a long time. People will not go blind, because there will be light underground, but they may change in some way. Scientists say that people who live in cities today are losing their senses of smell, touch and taste. They can smell the dirty air, they can’t taste the chemicals in their food. These senses are not as strong as before, when people lived in the country and grew their own food. The city has changed that. What will the underground city change in everyone?
【小题1】People will live under the ground because ________.
| A．it’s neither hot nor cold there | B．they’ll be afraid of the war |
| C．there’ll be less space on the ground | D．they’ll make their life comfortable |
【小题2】The passage tells us ________under the ground.
| A．some new cities have been built | B．it’ll be difficult to built cities |
| C．people can never build new cities | D．no one ever thought of building new cities |
【小题3】Some countries try to build under the ground so that people can live there when ________.
| A．summer comes | B．a war breaks out |
| C．it’ll be safer for them | D．they can’t live on the land |
【小题4】________, so people who will be there won’t go blind.
| A．There’ll be enough light under the ground | B．It’ll be easy to go upstairs |
| C．Glasses will be sold under the ground | D．Medicine will be supplied for free |
【小题5】People will lose some senses under the ground because ________.
| A．the world are polluted | B．it’s dark there |
| C．they can’t see the far-away senses | D．they can’t grow their own food |
