题目

For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone on outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships travelling through space, on the chance that someone may be receptive to such messages. Scientists are using powerful radio telescopes to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan the entire sky to “listen” for radio messages from mor读六大板块图回答问题。（5分）（1）写板块名称：①_____________③___________。（2分）（2）喜马拉雅山位于______板块与______板块交界处。（2分）（3）我国台湾省多地震，主要是因为地处世界两大地震带之一的 。（1分）