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 again by the spinning (自 轉(zhuǎn)) of the earth. At the equator day and night are sometimes of the same length (長度) .They are both 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 (傾斜) towards the sun. In those months the Northern Hemisphere gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. In 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. In 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 again 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 towards the sun,the Northern Hemisphere gets sunlight.

   A. less   B. more

   C. all   D. no

5. When it is winter in China, .

   A. the US is tilted towards the sun

   B. the South Pole is tilted away from the sun

   C. the North Pole is tilted towards the sun

   D. the North Pole is tilted away from the sun

Answer 1

1. D 2. C 3. A 4. B 5. D

導(dǎo)讀白晝與黑夜不停地交替，你知道其中的奧妙嗎？

詳析

1. D細(xì)節(jié)理解題。根據(jù)文章第五句可知D項為正確答案。

2. C細(xì)節(jié)理解題。從第六句可直接找到答案。

3. A細(xì)節(jié)理解題。從第七句可直接找到答案。

4. B細(xì)節(jié)理解題。從文章第十和第十一句可直接找到答案。

5. D推理判斷題。從文章的最后幾句可推出，中國在北半球，離北極近，當(dāng)中國是冬天的時候，也就是北極偏離太陽的時候。故選項D符合題意。

equator n.赤道 hemisphere 半球

障礙句分析

A place is moved from day into night and from night into day over and over again by the spinning of the earth.由于地球自轉(zhuǎn)，一個地方的白晝和黑夜不停地交替。

by在句中表示“通過……方式、途徑”。