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-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front ofA.应该为at the front of

题目详情
-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front of
A.应该为at the front of
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答案和解析
选B
in front of,in the front of,at the front of,in front
这四个介词短语的涵义均与“在前面”有关,但用法区别在于:
in front of通常相对于某物体的外部来说,指另外的物体或人位于该物前面,意为“在……前面”.如:
There are some trees in front of the house.房子的前面有一些树.(树在房子之外的前面)
in the front of通常相对于空间而言,指某人或物位于某个空间的内部,但它指的是物体的前部,意为“在……的前部”.如:The teacher is standing in the front of the classroom.老师站在教室的前面.(指教室里的前面)
at the front of也指在某个物体本身或范围之内的前部,但仅指 一个点而已,范围没有in the front of那么大.两者有时可换用.如:Mike is sitting at /in the front of the classroom.迈克坐在教室的前面.
in front单独使用,笼统地指某人或物“在前面”.如:
Now they are in front.现在他们在前面.
at front of 和in front of均为在.前面
但 at front of表示什么在某个物体前面 二者是平行的关系
in front of表示什么在某个物体前面 二者是从属,包含的关系