题目内容
The universe is really mystical(神秘的). Scientists have done lots of study about it but there is still much they haven’t discovered. ___ think that people have lived on the earth for many many years. However, we haven’t found life on any other planets _____.
There _____ eight planets going around the sun. The earth is one of them. There are humans, animals, plants and many other kinds of _____ on the earth. There is water and air, too. And compared to the other planets, the earth is not too _____ or too cold. None of seven other planets has a(n) _____ like that of the earth.
The sun and its planets are_____the solar system, and our solar system is a small part of a much larger group of stars and planets, called the Galaxy or the Milky Way. There are billions of_____ in the Galaxy, and our sun is only one of them.
Scientists have also_____many other galaxies in the universe. Their light has to travel for many years to reach us. So how______ is the universe? It is impossible to imagine______.
Scientists have sent spaceships to the planet Mars to take______photos. They have______ sent spaceships to travel outside the solar system. However, no spaceship has travelled far enough to reach other stars in _____ Galaxy.
When we see stars twinkling(闪耀) in the sky at night, we may think a lot:with so many stars in the universe, is there life out there in space? If there is life on other planets, what life will be like there? What transports do they use to travel______? Why don’t they visit us? We do not know the answers...
1.A. Workers B. Doctors C. Scientists D. Managers
2.A. yet B. already C. still D. just
3.A. is B. are C. was D. were
4.A. plant B. life C. animal D. nature
5.A. cool B. warm C. hot D. wet
6.A. lesson B. house C. expression D. environment
7.A. caused B. carried C. explained D. called
8.A. lights B. rivers C. stars D. gods
9.A. discovered B. invented C. produced D. prevented
10.A. large B. far C. wide D. long
11.A. introduce B. overcome C. appear D. imagine
12.A. fetch B. take C. carry D. bring
13.A. pretty B. just C. even D. also
14.A. her B. our C. its D. his
15.A. travel B. serve C. throw D. beat
1.C 2.A 3.B 4.B 5.C 6.D 7.D 8.C 9.A 10.A 11.D 12.B 13.D 14.B 15.A 【解析】本文是一篇说明文。主要介绍了宇宙之神秘以及科学家探索宇宙的各种努力。 1.考查名词词义辨析。句意:_________认为人们已经在地球上居住多年。Workers工人...