1. 阅读理解

    You might see aliens in books and movies. They look strange. They are very smart. They travel in spaceships.

    But are there really aliens in space? British scientist Stephen Hawking, 68, thinks so. He says that people should not look for aliens. He thinks they are dangerous. On a new British TV program, Hawking says, "It is quite possible that there are aliens in space. They might live in big spaceships. They have used up all the resources（资源）from their home planet. "He thinks such aliens are sure to get resources from Earth and then go away. They may bring troubles to Earth, too.

1. （1） Aliens in books and movies are always           .

   A . quiet and strange B . strange and smart C . smart and cruel D . shy and cute
3. （2） Are there really aliens in space?

   A . Yes, there are. B . No, there aren't. C . We are not sure. D . There used to be some, but now they have disappeared.
5. （3） According to Mr. Hawking, aliens probably have               .

    

   A . used up their resources B . polluted their own planet C . destroyed the big spaceships they lived in D . travelled around the earth
7. （4） Mr. Hawking believes that aliens will come to Earth to           .

   A . cause troubles B . get resources C . make a living D . make friends with humans