题目内容

【题目】可能总辐射是考虑了受大气减弱后到达地面的太阳辐射,有效总辐射是考虑了大气和云的减弱之后到达地面的太阳辐射。读“北半球年总辐射随纬度的分布表”,回答下列各题。

纬度(°N)

64

50

40

30

20

0

可能总辐射(W/m2

139.3

169.9

196.4

216.3

228.2

248.1

有效总辐射(W/m2

54.4

71.7

98.2

120.8

132.7

108.8

1下列说法正确的是

A. 影响可能总辐射分布的主要因素是海陆位置

B. 云量最多的地区是20°N

C. 有效总辐射随纬度增加而迅速递减

D. 20°N有效总辐射最大是因为太阳高度较大且降水较少

2下列地区有效总辐射量最高的是

A. 青藏高原 B. 墨累——达令盆地

C. 西伯利亚地区 D. 刚果盆地

【答案】

1D

2A

【解析】试题分析

1】该题主要考查太阳辐射的分布及图表分析能力。由表可知,20°N附近有效总辐射量最多,其原因是该地常年受副热带高气压控制,晴天多,且纬度低,太阳高度角大。故答案选D项。

2】在四个地点中,青藏高原海拔高,空气稀薄,云量少,大气和云对太阳辐射的削弱作用比较少,有效总辐射量最多。故答案选A项。

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【题目】B

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

How to prepare for exam?

Here are some tips you can read with your child.

The first step in preparing for examination is to set a fixed time each day to study and a schedule to say when to start the revision and for which subject. The plan should include how many chapters to revise and how many worksheets to work on. 1 . Parents who do not know the examination time schedule can search 'exam timetable' to see the official examination schedule.

2 .

The second thing is to decide on the place to study. Some need total silence in a library before they can concentrate while others like to have some background music like in the cafeteria. 3 . So there is no need to tell your child to change the study place if he is producing the desired results.

4 . For lessons, pupils must participate in lessons and discussions actively. For exercise, work on the simple ones in the textbook. For theory, pupils can use the mind map method to summarize the facts.

At last, study smart. Focus on chapters that are the core of the subject or difficult chapters. 5 .

A. Next the most effective way to revise is to use an active approach.

B. Making good preparations counts.

C. Mind map can help you a lot in your revision work.

D. Your child has to be self-disciplined to follow the plan.

E. It is not necessary to simply read from first to last page.

F. The best time to start revision is one or two months before the examination.

G. Both are alright as long as your child is comfortable with it.

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