读图，图中阴影部分是夜间，ABC是晨昏线，按要求完成（9分）
(1)请在粗线上用箭头标出地球自转的方向。
(2)此时太阳直射的地理位置是: (经度)、 (纬度）
(3)图中表示晨线的线段是 。此刻，A点为 点钟，D点为 点钟。半年后，B点昼长 小时。
（4）A、B二点中：此日昼夜平分的是 。自转线速度较快的是 。
（1）
（2）135°E；23°26′N
（3）BC；18点；15点； 0
（4）A；A
(1)地球自转的方向是自西向东。图中极点为北极点，北极点为中心的极地俯视图为逆时针旋转。
(2)根据图中北极圈及其以北地区出现极昼，所以直射点的纬度是23°26′N，根据0°经线和180°经线的位置，推断直射点的经度为135°E。
(3)本题考查晨昏线的判断，图中表示晨线的为BC，A为昏线和赤道的交点，地方时为18:00，D点比A晚3个小时，为15:00，半年后B点出现极夜现象，昼长为0小时。
（4）A位于赤道，全年昼夜等长，自转线速度较快的为赤道，所以本题选择A选项。
PLAYA GRANDE, COSTA RICA----This resort town was long known for Leatherback Sea Turtle（棱皮龟）National Park, nightly turtle beach tours and even a sea turtle museum. However, on a beach where dozens of turtles used to nest on a given night, scientists spied only 32 leatherbacks all of last year. With leatherbacks threatened with extinction, Playa Grande’s turtle museum was abandoned （抛弃）three years ago and now sits among a sea of weeds. And the beachside ticket office for turtle tours was washed away by a high tide in September. “We do not promote that as a turtle tourism destination any more because we realize there are far too few turtles to please,” said Alvaro Fonseca, a park ranger.（管理员） Even before scientists found temperatures going up over the past decade, sea turtles were threatened by beach development, drift net fishing and Costa Ricans’ interest in eating turtle eggs. But climate change may cause the most serious harm to an animal that has lived in the Pacific for 150 million years. Sea turtles are sensitive to numerous effects of warming. They feed on reefs, which are dying in hotter seas. They lay eggs on beaches that are being covered by rising seas and more violent waves. More uniquely（独特地）, their gender is determined not by genes but by the egg’s temperature during development. Small rises in beach temperatures can result in all-female populations, obviously problematic for survival. If the sand around the eggs hits 30 degrees Celsius, the gender balance shifts to female; at about 32 degrees they are all female. Above 34, you get boiled eggs. On some nesting beaches, scientists are artificially cooling nests with shade or irrigation and trying to protect broader areas of coastal property from development to ensure that turtles have a place to nest as the seas rise. 小题1:Why does the resort town stop promoting its turtle tourism?
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