Coconut basically grows near the water source, and when the fruit is ripe, it will be taken away when it falls into the water. When the coconut rushes to the shore, the coconut shell will gradually rot, and when the environment is suitable, it can take root and sprout. But if it is planted artificially, the seeds are spread by manpower.
The second-grade Chinese "Plant Mother has a Way" is a poem about plants spreading seeds. It vividly introduces the methods of spreading seeds of dandelion, xanthium sibiricum and pea by using metaphor and personification rhetoric.
From the method of plant mother, we can feel the wonder of nature, stimulate more desire to know about plants, and cultivate the habit of observing things around us carefully.
The whole poem consists of five sections, which are developed according to the idea of "asking questions-specific introduction-prompting observation". The first section stimulates students to think: what methods do plants use to spread seeds; The second, third and fourth sections describe the methods of spreading seeds by Taraxacum mongolicum, Xanthium sibiricum and Pistacia tonkinensis respectively. The fifth part encourages students to observe carefully and discover new knowledge.
The Method of Plant Spreading Seeds in "Mother Plants Have Ways"
1, spread by water
Coconut: spread by water. When the coconut is ripe, it falls into the sea and floats away with the sea water.
Water lily: The fruit of the water lily sinks to the bottom when it matures. After the pericarp decays, the seeds covered with spongy exocarp will float and drift to other places.
2, spread by birds or other animals
Cherry, wild grape, wild ginseng: Birds or other animals eat seeds in their stomachs, but because they can't be digested, they are discharged with feces and spread in all directions.
Pine nuts: They were taken away by squirrels when storing winter grain.
3, spread by the wind
Hongliu: It is the flying catkins that spread seeds far away.
There are many ways to spread seeds mechanically.
Impatiens: The fruit of Impatiens will bounce off, crack and shoot a bullet in all directions. This is a method of mechanical sowing. There are many legumes that spread seeds by machinery.
Baidu encyclopedia-plant mother has an idea.