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4、重点难点精讲(四) ...
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at the front和at the back等有关词组的用法
1 front 作名词表示“前面”,作形容词表示“前面的”。
比较
at the front 在前面
in the front row在前排
She stood at the front . 她站在前面。
She sits in the front row. 她坐在前排。
2 back 构成的词组有:
at the back在后面
at the back of在……的后面/部 (某范围之内的后面 )
in the back row在后排
She stood at the back . 她站在后面。
There is a chair at the back of the room. 房间的后部有一把椅子。
He sits in the back row. 他坐在后排。
12 at work和at rest
at 可以表示“在做,在……过程中”,后跟不可数名词或单数可数名词,构成固定词组,常作表语,前面用be动词。
Li Ming is at work. 李明在工作/在办公。
They are at rest. 他们在休息。
The children are at school. 孩子们在上学。
They are at their meal. 他们在吃饭。(也可以说at meal )
Who is at the violin? 谁在拉小提琴?(乐器名词前要用the )
The two countries are at war. 这两个国家正在交战。