the 1 means the earth,the sun,the moon and the space 2 them.many of the stars are so 3 away that we
can see them.the moon,our satellite,travels 4 the earth.it has already been visited 5 man from the earth.man-made satellites have been sent up 6 space by many countries.they go round the earth.they are used for helping us to learn more 7 the earth,the weather and other things.they are also used for sending and 8 messages.it makes people 9 different countries understand each other much better.so people say the world itself is becoming a much 10 place.people call the small place"the global village".
各个空格首字母为 1u 2b 3f 4a 5b 6i 7a 8r 9f 10s 完形填空