问题 选择题

由于地球公转速度不均(近日点快,远日点慢)造成的现象是:

①太阳直射点的回归运动   ②北半球的夏半年较冬半年长

③昼夜长短的季节变化     ④北极点极昼天数比南极点极昼天数多几天

A.①②

B.①③

C.②③

D.②④

答案

题目分析:地球自转而产生的是昼夜更替,不同经线上有不同的地方时,物体的水平运动发生偏向,使地球成为旋转椭球体;昼夜现象是因为地球不透明;③昼夜长短的变化⑤不同纬度上有不同的正午太阳高度⑥不同纬度上的昼夜长短不同⑧四季更替⑩地球表面上的五带,都是地球公转的地理意义。选D正确。

单项选择题 共用题干题
单项选择题

Beyond question, Clinton was supposed to close up, stay out of sight, and avoid second- guessing his wife’s boss. After his ego blustered into oncoming traffic during Hillary’s heated primary race (1) Obama, the nation suffered from yet another turn of Clinton fatigue.

(2) this week Bill Clinton showed an instinct for robust, inclusive leadership that the (3) White House occupant could make good use of right for the time being. With President Obama struggling to (4) the political damage from the Gulf oil spill, Clinton not only can’t help himself—he’s worth being listened.

The conventional-wisdom (5) on President Obama’s early reaction to the spill was (6) he didn’t emote enough. He didn’t feel the (7) of all those people in the crisis whose livelihood would be destroyed, whose clean waters and wildlife would be (8) in black gunk.

Clinton considers this is an unfair (9) but offers a different—and more pointed— lesson to his young successor. "I think we ought to (10) in the same boat for a while... Let’s just (11) the problem, and then we can hold everybody responsible and emote or not emote, " Clinton conversed (12) CNN Anchor Wolf Blitzer.

Obama’s first (13) after the oil spill was to "feel the blame" rather than "feel the pain, " which are pretty sarcastic words as it were. No one intends to let British Petroleum (BP) management (14) the hook—for dangerously cutting corners, and for a (15) safety record. However, the President’s (16) focus on scolding BP consumed (17) White House energy while the oil gushed.

Great leaders don’t rush to criticise; Instead they instinctively (18) solutions. Rudy Giuliani, who didn’t stop to blame (19) intelligence for letting it happen, stood out from New York mayor with a girlfriend problem to 9/11 hero when he took control of a crisis and instilled confidence that a ravaged city could (20) beyond a terrorist attack.

13()

A.research

B.instinct

C.plan

D.strategy