1.B.从第二段but its ancestors can be found in books written hundreds of years ago.可以看出.
2.D.从第四段Modern science fiction writers don't write about men from Mars or space adventure stories.可以看出．
3.A从最后一段however,may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology and come to terms with a continually changing view of the world.可以看出.