英语阅读答题The sky usually looks light blue.But if you go to the

英语阅读答题
The sky usually looks light blue.But if you go to the top of the highest mountain.Where there is less air between you and the sun to scatter the sunlight the sky would be dark blue.And if you ride in a spaceship high above the earth.Where there is no air at all to scatter the sunlight.The sky would be so dark that it would be black.
Sometimes the sky doesn't look tlue.At sunrise and sunset,the light from the sun sometimes is scattered insuch a way that you see red,orange,and other colours in the sky.
选择
1、The sky usually looks light blue because ( )
A、the sun is light and blue
B、the air is light and blue
C、the air seatters the sunlight
D、the sunlight is light and blue
2、When ( ),the sky looks dark blue.
A、there is more air between you and the sun
B、there is a high mountain far away
C、the mountams around us are very high
D、you climb to the top of a very high mountain
3、H( ),the sky looks black.
A、you travel in a ship
B、you climb to the top of a high mountain
C、there is a spaceship high above the eartb
D、there is no air to searrer the sunlight
4、Sometimes the sky doesn't look blue because( )
A、the sun always rises in the east
B、the sun always set in the west
C、the air in the sky has different colours
D、the light from the sun is scattered in different ways
5、Which of the following is the best title for the passage?( )
A、the sky looks blue
B、the colours in the sky
C、the beautiful sunlight
D、something about the air

很简单,是;
1.C,天是蓝色的,因为空气折射太阳光线的缘故.
2.D,文中说了爬到山顶上天空就看起来像深蓝色
3.D,天空会是黑色,当然是因为在宇宙中没有空气折射的缘故
4.D,天空有时候看起来不是蓝色的,因为折射的方式不同,如日出,日落时.
5.B.本文是关于天空的颜色的,不止蓝色,还有深蓝,黑色,红色,桔蓝色等等.