五.语法填空 (20分)
We ofter think of future. We often wonder ____1____ the world will be like a hundred years’ time.
Think of 2 space. Perhaps a permanent station on the moon 3 （set up）. Perhapes people will be able to visit the moon as 4 . Cheap rockets for space travel will have been developed, 5 （permit） long journeys through the solar system. When that time comes, people will be taking holidays in space and visiting 6 planets. Great propress will have been made 7 medicine, too. Pollution will have been controlled in a hundred years’ time.
8 the world will have been developed—even Antarctica. We will have used up most of the earth’s land to build our cities, 9 floating cities will have been built. The Japanese have already plans of this kind. And there will be cities 10 the sea.
