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介词分为很多种,在小学阶段最常见的就是介词表方位,我们可以用图示的方法说明方位介词的基本用法:(1)on表示在某物的上面,指与某物体相接触。e.g.The map of China is on the wall.中国地图挂在墙上。His coat is on the chair.他的上衣在椅子上。(2)under表示在某物垂直的正下方,两者之间不接触。
Prepositions are divided into many kinds. The most common form of prepositions in elementary school is the orientation of prepositions. We can illustrate the basic usage of orientation prepositions by means of illustration: (1) on means that something is in contact with something. SuchThe map of China is on the wall. His coat is on the chair. His coat is on a chair. (2) under means that something does not come in contact with it directly below it.