问题 单项选择题

对文章画线的句子理解不正确的一项是( )。

A.他们认为,主星奎宿四所带的所有的行星都有吸引力。

B.他们认为,主星奎宿四除了行星A对它有吸引力外,行星B对奎宿四也有很大的吸引力,两颗行星拖曳着奎宿四。

C.他们认为,主星奎宿四虽然带着三颗行星,但是有吸引力的只有两颗,行星C对主星没有什么影响。

D.他们认为,根据数据推测,奎宿四的行星不应只有三颗,应该还有一颗未被发现的行星。

答案

参考答案:A

解析:由“还有第二颗行星的引力在拖曳主星”可知。

阅读理解

Science has told us too much about the moon that it is fairly easy to imagine what it would be like to get there. It is certainly not a friendly place. Since there is no air or water, there can be no life of any kind. There is not much variety of scenery either. For mile after mile there are only flat plains of dust with mountains around them. Above, the sun and stars shine in the black sky. If you step out of the mountain shadow, it means moving from the severe cold into intense (强烈的) heat. These extreme temperatures continually break rocks away from the surface of the mountains. The moon is also a very silent world, for sound waves can only travel through air. But beyond the broken horizon, you see a friendly sight. Our earth is shining more brightly than the stars. From this distance, it looks like an immense (巨大的) blue, green and brown ball.

小题1:The moon is an unfriendly place because                   .

A.there is no air, no water, no life, no scenery

B.the sun and stars shine in the sky

C.temperature breaks rock away

D.all of the above小题2:Without           , the moon is a silent world.

A.man

B.air

C.sound

D.water小题3:According to the passage we know that             .

A.the earth looks like a colored ball

B.we can enjoy the scenery on the moon

C.every inch of the moon is very hot

D.the extreme temperature breaks rocks away from the surface of mountains小题4:We can conclude(断定) that “continually” means          .

A.sometimes

B.always

C.without break

D.frequently小题5:The best title for the passage is                        .

A.An Unfriendly and Friendly Place

B.The Geography of the Moon

C.Moon, a Silent World

D.The Moon

多项选择题