高一视频资源
《完形填空之词语辨析》麻雪玲
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老师传授典型题详细办法
教学生举一反三
一题多解、一题巧解
错题本
错题追踪复习
听课中的错题能自动加入错题本
课后可方便复习及导出错题本
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老师针对课堂中的经典例题
为学生推送同类型题,掌握解题方法
by sea, by the sea, in the sea, on the sea, at sea
(1) by sea “走海路,乘船”,用来表示交通方式,同 by ship 同义。
These heavy boxes should be sent by sea.
(2) by the sea “在海边”,相当于 by (at) the seaside。
The children enjoyed themselves by the sea on Children's Day.
(3) in the sea “在海里,在海水中”
There are many plants and animals in the sea.
(4) on the sea “在海面上”,“在海岸边”。
I want to live in a town with a beautiful position on the sea.
(5) at sea 在海上;在航海
When he woke up, the ship was at sea.