Read the second volume of the fourth grade "The Sparrow Monument Answer"

Answer: 1, ① the abuse of pesticides and herbicides in various places brings pollution. ② The decrease of sparrows is related to the fact that sparrows were once regarded as one of the "four pests". (3) The change of urban architecture makes sparrows have nowhere to live. (4) In order to satisfy the appetite, human beings kill sparrows again. 2. By comparing and enumerating figures, irrefutable facts show that the number of birds has dropped sharply and needs to be protected urgently. 3. no, there is a primary and secondary relationship. Example: In 1950s, they were driven out of their wits by deafening killings all over the country, and dared not take a break, so that they fell to the ground and died of fatigue. Analysis: Using exaggerated and anthropomorphic rhetoric, it is vividly written that the decrease of sparrows is related to being regarded as one of the "four evils". 5. Example: ① Sparrows are listed in the national wildlife protection list. (2) During the breeding period of sparrows, it is forbidden to abuse pesticides and herbicides. ③ Posting slogans to protect sparrows, etc.