Question

The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere. Days are longer t han nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

1.When the Western Hemisphere is having day, the Eastern Hemisphere is having ______.

A. both day and night     B. day

C. neither day nor night   D. night

2.A place is moved from day into night and from night into day over and over by _____ of the earth.

A. the pushing        B. the pulling

C. the spinning      D. the passing

3.At the equator day is as long as night ______.

A. sometimes      B.never

C. usually         D. always

4.When the North Pole is tilted toward the sun, the Northern Hemisphere gets ______ su nlight.

A .less   B. more   C. all     D. no

5.When it is winter in China, ______.

A. the USA is tilted toward the sun

B. the South Pole is tilted away from the sun

C. the North Pole is tilted toward the sun

D. the North Pole is tilted away from the sun

Answer

1.D

2.C

3.A

4.B

5.D

【解析】

试题分析：这篇短文主要介绍了地球的自转造成了白天和黑夜之分，冬季黑夜较长，夏季白天较长。

1.D细节理解题，根据文中语句理解可知。当东半球是白天时，西半球是黑夜，故选D。

2.C细节理解题，根据文中语句“A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth.”理解可知。昼夜的交替是由地球的自转造成的。故选C。

3.A细节理解题，根据文中语句“At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long.”理解可知。赤道的昼夜长度是一致的。故选A。

4.B细节理解题，根据文中语句“For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere.”理解可知。当北极点对向太阳时，北极地区获得的阳光要多些。故选B。

5.

考点：科普类短文阅读。