[题目]下图是极地投影示意图.图中小虚线圆为极圈.大虚线圆为回归线,弧线ACB为晨昏线.且AC段为晨线,C点为晨昏线与极圈的切点.也是晨昏线与120°E经线的交点.读图回答下列问题.[1]A. 3月21日 B. 6月22日C. 9月23日 D. 12月22日[2]A. 开罗(30°N .31°E) B. 北京(40°N.116°E)C. 安克雷奇(60°N.150°W) D. 布宜诺题目和参考答案——青夏教育精英家教网—

题目内容

【题目】下图是极地投影示意图，图中小虚线圆为极圈，大虚线圆为回归线；弧线ACB为晨昏线，且AC段为晨线；C点为晨昏线与极圈的切点，也是晨昏线与120°E经线的交点，读图回答下列问题。

【1】

A. 3月21日 B. 6月22日

C. 9月23日 D. 12月22日

【2】

A. 开罗（30°N 、31°E） B. 北京（40°N、116°E）

C. 安克雷奇（60°N、150°W） D. 布宜诺斯艾利斯（34°S、59°W）

【3】

A. 3° B. 23.5° C. 26.5 ° D. 87°

【答案】

【1】B

【2】D

【3】A

【解析】试题分析：

【1】读图0°经线与120°E之间顺时针方向夹角为120°，可以判断地球自转方向为顺时针（沿地球自转方向度数越来越大的为东经度）。该图为以南极点为中心的俯视图。由于AC为晨线，BC为昏线，所以120°E为昼半球的中央经线，地方时为12点，南极圈以南地区为极夜，太阳直射点位于北回归线上，为北半球的夏至日，故选B。

【2】由上题分析可知，此时太阳直射北回归线，北半球昼长夜短，120°E为地方时12点。开罗位于东二区，为地方时6点，此时为上午，A错。北京正值正午，B错。安克雷奇位于150°W，此时为18点，此时接近日落，C错。布宜诺斯艾利斯位于西四区，此时为0点，正值黑夜，D对。故选D。

【3】由上题分析可知，此时太阳直射北回归线，攀枝花的正午太阳高度为87度。太阳能热水器集热板与太阳光线垂直，效果最好，计算可知，太阳能热水器与地面的夹角为3°，故选A。

练习册系列答案

【1】约特干古城遗址文化层深埋于地下的原因是(　　)

①板块断裂，地层下陷　 ②河流泥沙沉积

③风沙沉积　 ④冰碛物堆积

A. ①② B. ①③

C. ②③ D. ③④

【2】据该地层剖面图，可推知约特干古城遗址自然环境变化的特点是(　　)

A. 1000年以来气候稳定不变

B. 2000年以来沉积速度加快

C. 6000年以来湿润期长于干旱期

D. 距今7000年开始出现绿洲

【题目】--- Were all three people in the car injured in the accident?

--- No, only the two passengers who got hurt.

A. there were

B. it were

C. there was

D. it was

【题目】阅读理解。

California Condor’s Shocking Recovery

California condors are North America’s largest birds, with wing-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning(铅中毒) nearly drove them to dying out. Now, electric shock training and medical treatment are helping to rescue these big birds.

In the late 1980s, the last few condors were taken from the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico.

Electrical lines have been killing them off. “As they go in to rest for the night, they just don’t see the power lines,” says Bruce Rideout of San Diego Zoo. Their wings can bridge the gap between lines, resulting in electrocution(电死) if they touch two lines at once.

So scientists have come up with a shocking idea. Tall poles, placed in large training areas, teach the birds to stay clear of electrical lines by giving them a painful but undeadly electric shock. Before the training was introduced, 66% of set-freed condors died of electrocution. This has now dropped to 18%.

Lead poisonous has proved more difficult to deal with. When condors eat dead bodies of other animals containing lead, they absorb large quantities of lead. This affects their nervous systems and ability to produce baby birds, and can lead to kidney(肾) failures and death. So condors with high levels of lead are sent to Los Angeles Zoo, where they are treated with calcium EDTA, a chemical that removes lead from the blood over several days. This work is starting to pay off. The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2011.

Rideout’s team thinks that the California condors’ average survival time in the wild is now just under eight years. “Although these measures are not effective forever, they are vital for now,” he says. “They are truly good birds that are worth every effort we put into recovering them. ”

【1】California condors attract researchers’ interest because they .

A.are active at night

B.had to be bred in the wild

C.are found on in California

D.almost died out in the 1980s

【2】Researchers have found electrical lines are.

A.blocking condors’ journey home

B. big killers of Califorbnia condoras

C. rest places for condors at night

D. used to keep condors away

【3】According to Paraghaph 5 ,lead poisoning.

A.makes condors too nervous to fly

B. has little effect on condors’ kidneys

C. can hardly be gotten rid of form condors’ blood

D. makes it different for condors to produce baby birds

【4】The passage shows that .

A.the average survival time of condors is satisfactory

B.Rideout’s research interest lies in electric engineering

C.the efforts to protect condors have brought good results

D.researchers have found the final answers to the problem

【题目】 is a fact that English is being accepted as an international language.

A. There

B. This

C. That

D. It

【题目】读图回答下列问题。

【1】

A. 甲区域实地面积小于乙区域

B. ①地与③地自转线速度相等

C. ②地与④地的距离为2220KM

D. ③地位于④地的西南方向

【2】

A. ①--水资源短缺，干旱面积广大

B. ②--地势较平坦，平原面积广阔

C. ③--植被类型是亚热带常绿硬叶林

D. ④--太阳能、地热能等能源丰富

【题目】

--- Where did you find your lost pen?

--- It was in the park we visited that day.

A. what

B. that

C. where

D. when

【题目】--- Do you think I should buy that camera？

--- The price is reasonable and new arrivals are seldom on sale. It is really a bargain.

A. What for?

B. How funny!

C. Why not?

D. How come?

【题目】—Will the Smiths leave for Australia this spring?

—No，they finally decided ________.

A．not to leave B．not leaving

C．not to D．not to be leaving

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