Is the sunny and hot weather in many parts of the middle and lower reaches of the Yangtze River the

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C test question analysis: the most likely special weather phenomenon in the middle and lower reaches of the Yangtze River is the plum rain, which is long in June every year due to the quasi-stationary frontal control DAO system of the Jianghuai region.

Comments: This question can also test the knowledge of drought weather in the middle and lower reaches of the Yangtze River, climate types and characteristics in China.

a. At the beginning of summer, the Jianghuai region is often rainy and rainy The early or late arrival of the plum rain, the length of its duration, and the amount of rainfall will affect the agricultural production in the Jianghuai River basin.

b. Due to the sparse vegetation in the northern and northwest regions of China, the sandy soil is more, and the cold wave and windy weather are frequent, in the spring when the climate is relatively dry, it is easy to have sandstorm weather, so b does not meet the theme;

c. Typhoons that hit China often occur from May to October, especially from July to August, so they do not fit the topic.

d. Drought can occur all year round Spring drought occurs in the vast areas of the north, the coastal areas of South China, and the southwest region, especially in North China; Early summer drought occurs in the north; The drought mainly occurred south of the Qinling-Huaihe River; Autumn drought mainly occurs in Hunan, Hubei, Jiangxi, Anhui and other provinces; Winter drought mainly occurs in South China, so d is in line with the topic

Hence the choice: AD

a. At the beginning of summer, Jianghuai came to Changyuan.

Often cloudy and rainy The sooner or later the rainy season, the duration of the rainy season, and the amount of rainfall will affect the agricultural production in the Jianghuai River Basin, so a is in line with the topic;

b. Due to the sparse vegetation in the northern and northwest regions of China, the sandy soil is more, and the cold wave and windy weather are frequent, in the spring when the climate is relatively dry, it is easy to have sandstorm weather, so b does not meet the theme;

c. Typhoons that hit China often occur from May to October, especially from July to August, so they do not fit the topic.

d. Drought can occur all year round Spring drought occurs in the vast areas of the north, the coastal areas of South China, and the southwest region, especially in North China; Early summer drought occurs in the north; The drought mainly occurred south of the Qinling-Huaihe River; Autumn drought mainly occurs in Hunan, Hubei, Jiangxi, Anhui and other provinces; Winter drought mainly occurs in South China, so d is in line with the topic

Hence the choice: AD

Answer: Due to the monsoon climate in China, the warm and humid southeast monsoon makes landfall from the south every spring, and meets the cold air from the north to form a quasi-stationary front in the middle and lower reaches of the Yangtze River, resulting in plum rainy weather. It was not until the southeast monsoon reached the north of China that the middle and lower reaches of the Yangtze River were affected by the subtropical high pressure. View the original post