英语动词可分两大类, 带动作的,和不带动作的。
带动作动词又分两类
1. 及物动词 kick, sing, eat, watch, 等。
这些动词接一个受词。 如 kick the ball, sing a song, eat the food, watch a film等。
2. 不及物动词 swim, fly, walk, travel等。
这些动词接一知前置语才能接一个受词。如swim across the lake, fly in the sky, walk to school, travel to Thailand等。
答问
只有第1类动词的句子可以同时做到主动和复动时态,因为没有前置词。
例
He kicked the ball outside the house.
The ball was kicked outside the house (by him).
类似例子就不唠叨,请在日常学习中核实这个规律吧。
p. s. 不带动作动词例如 is am are was were be become等等 (原问题与这个没有关系,从简略去解释。)
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