This topic is a good exercise of imagination and understanding.

It can be divided into several parts: insect overview: describing the diversity of insects and the prosperity of the insect world; The relationship between insects and humans: the impact of the two most successful food chains on the earth's environment; The difficult living condition of insects in the shadow of human beings, the deterioration of living environment, the extinction of populations, the deviation from the survival law of the fittest, and the powerful survival ability of insects are often hit by human beings, and individual insects groan; A special case: bees, ants, locusts, aphids or other feelings for human beings. Lead to the topic of the article, who belongs to the world.