4
The idea of living on the moon is no long science fiction. However, there will be drawbacks to live there as well as advantage.
On the positive side, people will be able to escape from the crowding cities, but will have clear views of the earth and stars.
On the other hand, the moon is a unfriendly place for humans. First of all, people will have to wear special suits and if their equipment fails, it will probably die. Secondly, they will have to get used to be weightless. Finally, they’ll probably miss the plants and wildlife that exists on the earth.
In all, the moon might be an ideal place where humans take over a holiday or scientists carry out research, but not a place for ordinary people to live all the time.
4答案：
①long→longer②advantage→advantages③crowding→crowded④but→and⑤a→an
⑥it→they⑦be→being ⑧exists→exist ⑨删除take后的over ⑩在live后加in
The idea of living on the moon is no long science fiction. However, there will be drawbacks to live there as well as advantage.
On the positive side, people will be able to escape from the crowding cities, but will have clear views of the earth and stars.
On the other hand, the moon is a unfriendly place for humans. First of all, people will have to wear special suits and if their equipment fails, it will probably die. Secondly, they will have to get used to be weightless. Finally, they’ll probably miss the plants and wildlife that exists on the earth.
In all, the moon might be an ideal place where humans take over a holiday or scientists carry out research, but not a place for ordinary people to live all the time.
4答案：
①long→longer②advantage→advantages③crowding→crowded④but→and⑤a→an
⑥it→they⑦be→being ⑧exists→exist ⑨删除take后的over ⑩在live后加in
