概念建模，描述了植物生长需要的阳光、空气、水和土壤，图的下面有对应图自然语言描述，读者可以对比概念图和自然语言，看看怎么用好。

视频中的文字说明：

A plant needs many things to help it grow. It needs sunlight,water and air to help it grow.

1、Sunlight comes from the sun. It gives the plant warmth.

2、We cannot see air,but it is also important for the plant to grow.

3、Water help carry food from the soil to all its parts.

4、Soil has food for plants to grow big and strong.

5、A plant needs space in the ground to grow bigger.