题目内容
3.The word"day"has two meanings.When we talk about the number of days in a year,we are using"day"to mean 24hours.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 6o'clock in the morning and sets at 6o'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 than 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.25.When the Eastern Hemisphere is having day,the Western Hemisphere is havingD
A.both day and night
B.day
C.neither day nor night
D.night
26.A place is moved from day into night and from night into day over and over byCof the earth.
A.the pushing
B.the pulling
C.the spinning
D.the passing
27.When it is winter in China,D.
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.
分析 这是一篇史地常识短文."天"这个词有两层意思.当我们讨论一年中的天数时,我们说的"天"就是24小时;当我们讨论白天和夜晚时,我们用"天"表示太阳从升起到落下的这一段时间.因为地球看起来像一个球,太阳在同一个时间只能照到它的一半,所以地球的一般是白天时,另一半一定是黑夜.在赤道地区,白天和黑夜有时是一样长的.它们都是12小时.太阳从早上6点升起到下午6点落下.在6个月时间内,北极点是倾斜对着太阳的,此时北半球得到的光照时间要比南半球长,此时昼长夜短,而赤道以南是夜长昼短.在剩下的6个月里,北极点远离太阳,那么南半球得到的光照就多,它的白天就比夜晚长,赤道以北就夜长昼短.夜晚长的季节就是冬季,白天长的季节就是夏季.
解答 25.答案:D.细节理解题.根据"Because 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."可知,当东半球是白天时,西半球是夜晚.故选D.
26.答案:C.细节理解题.根据A place is moved from day into night and from night into day over and over by the spinning(旋转)of the earth.可知一个地方由白天到黑夜,从黑夜到白天,由地球的自转造成的.答案是C.
27.答案:D.细节理解题.根据Winter is the season of long nights.冬季黑夜比较长,可知当中国到了冬天时,北极总是远离太阳.答案是D.
点评 阅读题型,要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解.选择正确选项完成试题.
| A. | unless | B. | once | C. | because | D. | if |
| A. | of | B. | with | C. | on | D. | to |
| trying to collect getting complete so that more than |
B:To Yancheng.
A:How are you (57)gettingthere?
B:By bicycle.
A:By bicycle?From Nanjing?That's a long trip.
B:It's about 300kilometers.
A:How long will it take you to (58)complete the trip?
B:Perhaps about (59)more than twenty hours.
A:How many of you are making the trip?
B:There are four of us.Sun Huilin is Chinese,Peter is Australian,Lynn is from USA and I'm from Britain.
A:Why are you making this journey?
B:We are (60)trying to collect money for a wildlife project.
A:What will the money be used for?
B:For the rare red-crowned cranes,we want to give some money to this project,
(61)so that the number of these cranes in China can be increased.
A:That sounds a great idea.Good luck with your trip!
B:Thanks a lot.