by 和through的用法谁能继续举例？

through为介词，既可指时间，也可指地点。指时间时表示“在(整整一段时间)中”，指地点时表示“通过，穿过经过”(常有较活的译法)。例如：

① Sometimes they have to work through the weekend.

有时候整个周末他们都得工作。

② All through the night, he waited for news from the front.

整整一夜他等候着前线的消息。

③ She walked rapidly through the rice-fields. 她快步穿过稻田。 ④ The sunlight was coming in through the window.

阳光从窗口照射进来。

⑤ The wind was cutting through his thin prison uniform like a knife.

寒风象一把刀子透过他薄薄的囚服刺入骨髓。

By是个很常用的介词（有时也用作副词），用法有以下几种：

1．意为“在……旁”、“靠近”。如：

Some are singing and dancing under a big tree . Some are drawing by the lake. 有的在大树下唱歌跳舞，有的在湖边画画儿。

2．意为“不迟于”、“到……时为止”。如：

Your son will be all right by supper time. 你的儿子在晚饭前会好的。
How many English songs had you learned by the end of last term? 到上个学期末你们已经学了多少首英语歌曲？

3．表示方法、手段，可译作“靠”、“用”、“凭借”、“通过”、“乘坐”等。如：
The monkey was hanging from the tree by his tail and laughing. 猴子用