Geography topics in the first year of high school. 6:30 p.m. What is in the East 8th District!! How

In order to overcome the confusion of time, an International Longitude Conference (also known as the International Meridian Conference) held in Washington, D.C., in 1884, stipulated that the world be divided into 24 time zones (12 time zones in the east and 12 time zones in the west). The United Kingdom (the former site of the Greenwich Observatory) is defined as the Middle Time Zone (Time Zero Zone), East Zones 1-12, and West Zones 1-12. Each time zone spans 15 degrees of longitude and the time is exactly 1 hour.

Finally, the 12th East and West Districts each span longitude degrees, bounded by 180 degrees east and west longitude. The time on the ** meridian of each time zone is the time uniformly adopted in this time zone, called zone time, and the time difference between two adjacent time zones is 1 hour. For example, the time in China's East 8 Zone is always 1 hour ahead of Thailand's East 7 Zone, and 1 hour behind Japan's East 9 Zone.

Therefore, people who travel abroad must adjust their watches at all times to match the local time. Whenever you go west, you must set your watch back by 1 hour (e.g. from 2 o'clock to 1 o'clock) every time you pass a time zone; Whenever you go east, you have to move your watch forward by 1 hour (e.g. 1 o'clock to 2 o'clock) every time you pass through a time zone. It also stipulates that the United Kingdom (the former site of the Greenwich Observatory) is the prime meridian, that is, the meridian at zero hour (24 o'clock).

I can't even understand it as a liberal arts student.

Can you send me the full question?

When the morning and dusk lines are tangent to the Arctic Circle, the meridian where the zero point is located is 105°W, that is, the part that crosses the 0° meridian east from 105°W and then east to the International Date Line is June 22, and the part from the International Date Line east to 105°W is within the range of June 21.

Understood?? This is the right way to understand it.

The morning and dusk line is tangent to the Arctic Circle, which can only mean that this day is the summer solstice, and the polar day appears north of the Arctic Circle and the polar night appears south of the Antarctic Circle, which has nothing to do with the problem that the landlord said!

First of all, we must find out the zero point line, the zero point line is in the west seven area of 105 degrees west longitude (according to the landlord, I can't see the map clearly). The global limit from the West 7th Region to the east to the date line is June 22, and the West 7th Region west to the Japanese limit (International Date Line) is June 21! By 120° east longitude (East 8th Zone) Beijing time, there are nine time zones in the Eastern Hemisphere and 15°W longitude West 1, and the East Time Zone is earlier than the West Time Zone, so they are on the same day!

Hope it helps the landlord!

The plains are high, the plateaus are low; high in the south and low in the north; high along the coast, inland; The desert is high, the basin is low.

Because the terrain at this place is mountainous, the Taihang Mountains are northeast-southwest.

Mountains, the factor is the topography of the latitude of the solar radiation.

There are Taihang Mountains nearby, and the influencing factors include latitude, topography, sunny slope, and shady slope, altitude, sea and land location, ocean currents, and human activities.

This seems to be related to the terrain, you can try to associate it, the first ladder, the second ladder. Elevation.

Taihang Mountain is blocked, due to the terrain.

Students, it's time to take a good look at the topographic map of our country, especially the distribution of mountain ranges. The location of Taihang Mountain and Yanshan Mountain is found out by yourself, and the factors that affect the temperature are in the book, so take a good look at the topography, latitude, sea and land location, precipitation, air pressure, time (solar terms), and ocean currents.

Obviously, due to the influence of the topography, the line is parallel to the line of Taihang Mountain and Yanshan Mountain.

1. Latitude factor.

Second, sea and land factors.

3. Topographical factors.

Fourth, the ocean current factor.

5. Airflow movement.

6. Human activities.

The influence of the Taihang Mountains. High altitude and low temperature.

According to the diagram, the 28-degree isotherm turns there because it is affected by the terrain, and it is obvious that the line runs parallel to the line of Taihang Mountain and Yanshan Mountain.

The factors that can be summarized in this diagram are: the influence of topography, the influence of land and sea structure.

。Analysis: The land is a hot low pressure, and the ocean is a cold high pressure, so it is summer.

Analysis: Look at the outline to know that it is.

Analysis: The direct cause of the formation of wind is the presence of a horizontal pressure gradient force.

It blows from high pressure to low pressure, so it blows from the ocean to the land, and is deflected to the right in the northern hemisphere under the influence of geostrophic deflection force, so it is a southeast wind. In fact, you and I are both Chinese, and we know that it is summer, and most places in China are blowing southeast winds.

If the same longitude, then it is easy to know the ratio of b 28 minutes before sunrise and sunset 28 minutes later, which is nothing to explain. But the current situation is that a is b 5 degrees less than longitude, which means a time difference of 20 minutes in b. (The difference in longitude is sent out for 4 minutes), if you find a C (40 degrees north latitude, 115 degrees east longitude), methyl at the same latitude, longitude of ethylene, propylene, cb sunrise local time and bel as early as early 28, sunset 28 later, c 20 later, sunrise early b is 28-20 = 8 minutes, 56-8 = 48 minutes later than b sunset. Get it.

6、b 7、a 8、c

It can be clearly seen in the figure that a low pressure center is formed in the northern part of the Indian Peninsula in the Eurasian continent, and the wind direction is blowing from high pressure to low pressure.

Asian low pressure in summer southeast winds from the east of China.

If in winter, the northwest wind rises from the east, geographical knowledge, it is recommended to memorize directly.

Select option C, southeast wind. The explanation is as follows: From the map, it seems that the Asian continent is now controlled by the Asian low pressure, and the eastern Pacific Ocean is controlled by the subtropical high, which can be judged to be the summer in the northern hemisphere, the wind blows from the ocean to the land (from east to west), and due to the influence of the deflection force of the floor tiles, the eastern part of our country mainly changes to the southeast wind.

The wind blows from high pressure to low pressure, southeast wind.