Senior one geography volume I activity problem p4 1.p42.p43 answer.

1. Weather has two important characteristics: weather reflects the atmospheric conditions in a short time; At the same time, the weather in different places may be very different.

2. See Figure 3.4 on page 45 of the textbook for wind direction and wind force.

3. Temperature and its distribution

① The highest temperature in a day appears around 2 pm, and the lowest temperature appears around sunrise.

② In a year, the temperature in the northern hemisphere is the highest in July and the lowest in 65438+ 10.

In a year, the temperature in the southern hemisphere is the lowest in July, and the temperature in the mainland is the highest in 65438+ 10.

③ From the equator to the poles, the temperature gradually decreases.

(4) According to the observation, the temperature drops by about 0.6℃ every time the altitude rises 100 meters.

⑤ Use isotherm diagram to show the horizontal distribution of air temperature.

4. Precipitation and its distribution

① Rain, snow and hail falling from the atmosphere are collectively referred to as precipitation. Rainfall is the main form of precipitation. Fog and dew are not precipitation.

② From the equator to the poles, the general trend is that the annual precipitation decreases gradually.

③ Near the Tropic of Cancer, there is more precipitation on the east coast of the mainland and less precipitation on the west coast of the mainland.

④ In temperate regions, there is less precipitation in Chinese mainland and more precipitation in coastal areas.

⑤ The distribution of precipitation is represented by isoprecipitation line graph.

6. The world's "rainy pole"-begging for help; The world's "dry pole"-Atacama Desert.

⑦ Usually, there is more precipitation on windward slopes and less precipitation on leeward slopes in mountainous areas.

4. World climate

(1) Climate is the average weather condition of a place for many years, and generally it doesn't change much.

② See page 58 of the textbook for the world climate distribution map.

③ Near the equator (tropical rain forest climate); Polar regions (frigid climate); The east coast of the mainland near the Tropic of Cancer (subtropical monsoon and monsoon humid climate); The west coast of the mainland near the Tropic of Cancer (tropical desert climate); Mid-latitude inland areas (temperate continental climate).

④ Climatic characteristics of tropical rain forest: high temperature and rainy all year round; Mediterranean climate features: less rain in high temperature period and more rain in low temperature period.

⑤ The main factors that affect the climate are latitude, land and sea, topography, temperature and precipitation.

6. The content of this part in the geographical map set.

Go to Baidu to search for it yourself. No, one question at a time.