7．
阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A long time ago, people thought that the
Sun went round the Earth. In some countries people even said that the Sun was a
god (神). They thought the god drove across the sky each day on a golden
horse. Now we know the Earth goes round the Sun. It takes the Earth a year to
go all way round the Sun. Today men even know how far it is for the Earth to go
round the Sun. They tell us that the Earth travels over a thousand miles a minute
on its journey round the Sun.
The Sun is really a star. It is much bigger
than the Earth and it is very hot. Some people have been to the Moon but we
know that no one can ever go to the Sun. It is far too hot for people to live
anywhere near it. The Sun is about three hundred thousand times heavier
than the Earth and more than a million times larger.
