问题 选择题

下图中心点为北极点。读图回答下列问题。

小题1:若阴影部分表示黑夜,甲地地方时为(  )

A.8时

B.9时

C.15时

D.16时小题2:若阴影部分为7月6日,非阴影部分为7月7日,甲地地方时为(  )

A.15时

B.9时

C.3时

D.12时

答案

小题1:B

小题2:C

题目分析:

小题1:因图中晨昏线与经线重合,所以全球各地昼夜平分,因OA是晨线,所A地此时是日出,其时间是6时,而甲地与A地的经度相差45°,且位于东侧,所以时间甲地比A地早3小时,应为9时。故选B。

小题2:因两日期的界限是地方时为0时的经线和日界线(180°经线),向东过日界线,日期减一天,所以OB的经度应为180°,OA为0时所在的经线,又因甲地和OA经线相差45°,那么甲地的时间比OA经线的时间早3小时,应为3时。故选C。

单项选择题

The International Whaling Commission’s (IWC) decision to retain its ban on whaling does not mean that the killings will stop. Quite the (1) .

Save the Whale. It’s a phrase which became annoying with (2) , an unfavorable shorthand for liberal consciences. How appalling, then, that in the year 2010, it should be pressed (3) service again, to fight the whaling nations: Norway and Iceland, who exempted themselves from the 1986 prohibition (4) by the IWC, and Japan, which hunts whales under cover of " (5) research".

I am completely (6) by this week’s events in Morocco, where talks broke down. In my heart, I agree with those who have (7) the news that this year’s negotiations of the IWC have broken up, and (8) the prohibition would not be lifted (as the US proposed in a desperate (9) to break the deadlock). Yet reason (10) something else. If we do not (11) some kind of new control, the (12) will be able to go on with their slaughter (13) . Membership of the IWC is (14) , and the ban was only ever intended to be (15) . Japan, which has been buying the votes of nations with no interest in whaling (only in the 16 Japan offers in turn), will continue to press its case, having invested millions of dollars in its (17) . Geoffrey Palmer, New Zealand’s Commissioner at the IWC, has proposed a year-long (18) period. In the meantime, more whales will die.

We stand at a crossroad for whales. We see the (19) existence of these animals as an indicator of ecological threat. As symbols of an endangered world, they evoke, and provoke, a feeling that they have the same qualities as human on a scale equal to their size and supposed (20) . To some this is so much sentimental words in the New Age.

5()

A.relevant

B.advanced

C.systematic

D.scientific

单项选择题