问题 问答题

读图回答下列问题:

(1)A、B、C三点都位于______纬度地区(高、中、低).位于东半球的点是______,一年中有两次太阳直射现象的点是______.

(2)A点的经纬度是______,当太阳直射A点时,地球位于图二中的______处,此时北极圈会出现______现象.

(3)当地球公转至丙处时,聊城可能出现的现象是______

A.蝉鸣林更幽B.无边落木萧萧下C.千里冰封,万里雪飘D.草长莺飞

(4)当地球公转至乙处时,北京处于______(季节),澳大利亚处于______(季节).

(5)在我们这次考试期间,地球约公转至______处,此时聊城昼______夜______.

答案

(1)从经纬网图看出,A点的经纬度是(23.5°N,90°E),B点经纬度是(23.5°N,110°E),C点的经纬度是(0°,110°E);东西半球的划分是以20°W和160°E组成的经线圈为界,东半球的经度范围为20°W→0°→160°E,因此ABC三点都位于东半球;0°~30°为低纬度,因此三点都位于低纬度;23.5°°N~23.5°S为热带,热带一年中有两次太阳直射现象,因此C点一年中有两次太阳直射现象;

(2)从地球公转示意图看出,当太阳直射A点(北回归线)时,地球应公转到图二中的甲处,此时为北半球的夏至日,北极圈会出现极昼现象;

(3)从地球公转示意图看出,当地球公转至丙处时,太阳直射南回归线,为北半球的冬至日,此时聊城出现的现象是千里冰封,万里雪飘;

(4)从地球公转示意图看出,当地球公转至乙处时,太阳直射赤道,为北半球的秋分日,也就是北京处于秋季,而南半球的澳大利亚处于春季;

(5)从地球公转示意图看出,当地球公转至丙处时,太阳直射南回归线,为北半球的冬至日,时间是12月22日前后,因此此次考试期间(12月16日),地球约公转至丙处,此时聊城昼短夜长.

故答案为:(1)低;ABC;C;(2)(23.5°N,90°E);甲;极昼;(3)C;(4)秋季;春季;(5)丙;短;长.

填空题

Every object tells a story. Even the most ordinary objects can present to us powerful images. Sometimes it is the ordinary nature of these objects that actually makes them so extraordinary. Such is the case with an old leather shoe in a museum in Alaska. At first glance it does not look like much. It is a woman’s shoe of a style popular in the 1890s. But what is unique about this shoe is where it was found. It was discovered on the Checkout Pass, the famous trail used by the people seeking gold in Alaska. Who it belonged to or why it was left there is not known. Was it perhaps dropped by accident as the woman climbed up the 1500 stairs carved outface Or did she throw away goods that she didn’t need in order to travel lighter
Over 100000 people with "gold fever" made this trip hoping to become millionaires. Few of them understood that on their way they would have to cross a harsh wildness. Unprepared for such a dangerous journey, many died of starvation and exposure to the cold weather.
The Canadian government finally started requiring the gold seekers to bring one ton of supplies with them. This was thought to be enough for a person to survive for one year. They would carry their supplies in backpacks each weighing up to fifty pounds; it usually took at least 40 trips to get everything to the top and over the pass. Whoever dropped the shoe must have been a brave and determined woman. Perhaps she was successful and made it to Alaska. Perhaps she had to turn back in defeat. No one will ever know for sure, but what we do know is that she took part in one of the greatest adventures in the 19th century.

The Canadian government made gold seekers bring one year’s supplies with them so that ______.
A. they would not die of hunger and cold
B. the army would have enough food for fighting a war
C. they would change these goods with the Eskimos
D. the supplies would make Alaska rich

填空题