23 Weather Network

(1) The latitudes of Riyadh and Shanghai are similar, with high temperature in summer and low temperature in winter, but the precipitation in Shanghai is far greater than that in Riyadh.

(2) It is agreed that deserts are mostly distributed around the earth between 23 and 35 degrees latitude, whether in the eastern hemisphere or the western hemisphere, or in the northern hemisphere or the southern hemisphere. It can be said that there is a desert belt near 30 degrees north and south, but China is an exception, mainly due to the abundant precipitation brought by the summer monsoon;

(3) The large-scale precipitation in North China belongs to C. Frontal rain;

(4) The formation of rainy season is directly related to the advance and retreat of summer monsoon. China is located in the mid-latitude area, facing the sea in the southeast, which is greatly influenced by the monsoon. Winter winds prevail in Chinese mainland in winter, and there is less rain, so the north is prone to drought in autumn and winter. In late spring, the summer monsoon becomes active. After the warm and humid air from the sea and the cold air from the north merged to form the main rain belt in China, the rainy season in North China was formed as the summer monsoon gradually pushed northward. Rainfall in North China is mainly concentrated in July-August, and it is most concentrated in late July and early August, commonly known as "seven drops and eight highs";

(5) Although the rainfall time in North China is short, the intensity is extremely high, which often leads to flash floods, river overflows and flat boats flooding, which has a considerable impact on people's lives.

So the answer is: (1) The same point is that it is high in summer and low in winter; Difference: the precipitation in Shanghai is much greater than that in Riyadh;

(2) agree; Between 23 and 35 degrees latitude, deserts are mostly distributed around the earth, whether in the eastern or western hemisphere, whether in the northern or southern hemisphere. It can be said that there is a desert belt near 30 degrees north and south latitude, but China is an exception, mainly due to the abundant precipitation brought by the summer monsoon;

(3)C；

(4) The formation of rainy season is directly related to the advance and retreat of summer monsoon. China is located in the mid-latitude area, facing the sea in the southeast, which is greatly influenced by the monsoon. Winter winds prevail in Chinese mainland in winter, and there is less rain, so the north is prone to drought in autumn and winter. At the end of spring, the summer monsoon began to be active, and the warm and humid airflow from the sea merged with the cold air in the north, forming the main rain belt in China. As the summer monsoon gradually pushed northward, the rainy season in North China was formed. ?

(5) Although the rainfall time in North China is short, the intensity is extremely high, which often leads to flash floods, river overflows and flat boats flooding, which has a considerable impact on people's lives.