Ask a master to help explain a geography problem

Longitude 160°, latitude 0°

First of all, seeing the North Star on the horizon indicates that man is on the equator.

Secondly, the western hemisphere on the right and the eastern hemisphere on the left can be inferred to be on the dividing line between the eastern and western hemispheres, and the east longitude of 160° satisfies this phenomenon.

Finally, did you miss the numbers in your answer options?

c According to logic, it can be judged to be c

Because the answer is often the one that comes up the most.

The first step is to exclude d, because a, b, and c are both latitudes, and d is the north latitude, and in the second step, c and d are both east longitudes, and a and b are west longitudes and longitudes, and only c and d have been excluded by the previous step

Then only C is right.

Judging by geography, it is also c right.

Because the right is the Western Hemisphere, the left is the Eastern Hemisphere, and only 160° east longitude excludes a b, and then the North Star appears on the horizon only if it is observed at the equator, so d is excluded

The answer is only C.

If you encounter such a multiple-choice question, you can use logic to observe it.

Polaris circles on the horizon all day.

The North Star can only be seen in the Northern Hemisphere.

Make circles on the horizon.

It is located in the low latitudes of the Northern Hemisphere, near the equator.

At this time, his right is the Western Hemisphere and his left is the Eastern Hemisphere.

To the west of longitude 20 is the Western Hemisphere, and to the east is the Eastern Hemisphere.

So his position is (0°, 20°W).

Think for yourself and don't give up when you encounter difficulties.

a The principle of river sand accumulation in rivers is the same as that of sand dunes in deserts: sand particles climb on gentle slopes and accumulate on steep slopes, while flowing water flows from one side of a gentle slope to one side of a steep slope.

Choice A, this question refers to the formation of sand dunes.

1) Southern Hemisphere (1 point) Flow from southeast to northwest (1 point) Pacific Ocean (1 point) 2) Day length greater than that of Wuhan (1 point) 14 (1 point) 3) Temperate oceanic climate (1 point) Mild winters, cool summers, and uniform precipitation throughout the year (1 point) are done with contour knowledge and geostrophic deflection forces.

According to the perennial influence of the westerly wind belt and the fact that the first place is located in the south of the 40° latitude, it can be judged that the map is the southern hemisphere. According to the bend of the contour line, which should be a valley, it can be judged that the river flows northwestward; Because the only land that passes through 40° south latitude is the Australian continent and the South American continent, the South American continent located in the western hemisphere is the South American continent, so the river flows into the Pacific Ocean; According to the sunset time of A, it can be judged that the day length in the northern hemisphere is 10 hours, and the night length is 14 hours, because the latitude of Adi is about 40°s, and the latitude of Beijing is about 40°N, so the night length of Adi is the same as that of Beijing.

Problem Analysis] (1) Southern Hemisphere (2 points) from southeast to northwest flow (2 points) Pacific Ocean (2 points) 2) Day length greater than that of Wuhan (2 points) 14 (2 points) (3) Temperate oceanic climate (2 points) Mild winters, cool summers, and uniform precipitation throughout the year (4 points).

Question Analysis] This question integrates the contour line interpretation, morning and dusk line questions, the length of day and night, air pressure and wind bands, climate judgment and other frequently occurring content in the college entrance examination, and tests students' ability to read pictures and analyze problems. The form of the topic is novel, the design is ingenious, and the comprehensiveness is strong.

There is a weak heart, no picture and no truth.

The person asking the question is so funny, there is no truth without a picture.

The reason for this is that the basin is about to enter the rainy season, and the surplus water from the reservoir can reduce the storage capacity and prepare for flood control.

So the answer: bReducing storage capacity prepares for flood control.

This question refers to the reduction of the storage capacity during this time period, not to the usual time, and it is wrong to say this at other times But it is correct here, when the water is transferred from June 19 to July 3, the water in the reservoir will be reduced, so that the storage capacity will be reduced (the storage capacity refers to the reduction of the capacity of the reservoir at this time), so that the sand can be cleared, which is to prepare for flood control That's right, understand.

Reducing the storage capacity means that the Xiaolangdi reservoir can store more water, and after the flood season in July, the empty storage capacity of the Xiaolangdi reservoir can be used to store water and alleviate the pressure of flooding downstream. Reducing the storage capacity is to release water, reduce the amount of water in the reservoir, and expand the storage capacity to rebuild, so it is to reduce the storage capacity.

Reservoir capacity means the volume between the design flood level of the reservoir and the restricted water level or normal storage level during the flood season. So, by reducing the storage capacity, more water can be stored. It can be used for flood prevention when there is a lot of rain.

This question mainly examines the practical application of the rainfall time season in the Yellow River Basin, the Yellow River Basin enters the rainy season in the month, the river runoff will suddenly increase, and the inventory will be emptied first in preparation for the arrival of the rainy season.

Option B: The wind direction in the North Pole should be south-east. Option C: The temperature can't be that low, the station is just on the edge of the Polar Circle. I don't think I need to explain option d.

a.The sun still rises in the east and sets in the west.

b.The wind is uncertain.

c.The temperature could be lower. But -70 is about the same.

d.No way.

c Pair.

b: Around Antarctica: Polar easterly. The red flag is in the opposite direction.

C: It's not so cold in the summer in Antarctica.

D: The wind is not so strong in the summer.

China's scientific expedition team to the Antarctic scientific expedition departs around September, and after arriving at the Antarctic, it is the winter of the Northern Hemisphere, and the polar day of the Antarctic Circle. (b) The southerly westerly winds prevail in the Antarctic region all year round, and the southern hemisphere is biased to the left, so it should be southwesterly. CD items do not conform to common sense and the geographical characteristics of Antarctica.

a, since the eastern station is north of the South Pole, the sun is going to rise and fall as the title says.