We often think of future. We often wonder 1 the world will be like in a hundred

     We often think of future. We often wonder __1________ the world will be like in a hundred years’ time.

     Think ___2_____ space. Perhaps a permanent station on the moon ___3_____ (set up). Perhaps 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 progress 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 had plans of this kind. And there will be cities __10______ the sea.

试题答案

 1 what   2 of   3 will have been set up   4 tourists/visitors/travelers   5 permitting 

6 other   7 in   8 All                  9 so/thus/therefore         10 under