2. In every city of China, there are bicycle l　 　for bicycle riders.

1. He was punished because he had no driving p　 . He couldn’t continue to drive without permission.

10. university→universities

6. are→were7. strong→strongly8.√9. 在dreams后加 into

5. As→Although/Though

4. read→reading或writing→write

2. Either→Each3.去掉the

4. 解析:选D。推理判断题。这篇文章旨在说明地球很可能被其他星球击中。

3. 解析:选B。细节理解题。根据第三段“Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero”可知，北半球也不会幸免。

2. 解析:选D。细节理解题。根据第二段“The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole”可判断出当第一个彗星碎片击中南大西洋时，激起了大浪。