by通常是介词，但有时用作副词。by虽然是一个小词，但是在英语的学习中使用的频率也比较高。下面是英语单词by的一些例句：
1.They are paid by the hour (by the month).
他们所得报酬按小时（月）计。
2.He was very tired by the evening.
他到晚上已经很累了。
3.Our grand parents’ house is situated by a beautiful river.
我们祖父母的房子坐落在一条美丽的河边。
4.By the cottage, there is a nice little fountain.
小屋旁边有一个漂亮的小喷泉。
5.He has read about 40 pages of the book by now.
现在这本书他已读了大约40页。
6.We will have finished the work by next month.
到下个月我们就会干完了这工作。
7.I will hand over the report by next Friday.
我将在下星期五前交报告。
8.I will be finishing off by 6 o’ clock today.
我今天六点前就要下班了。
9.By the time the doctor arrived the patient had died.
在医生到达时，病人已经死了。
10.We’re going by the 9:30 train.
我们坐9:30的火车去。
11.We went to Shanghai by a large ship.
我们乘一艘大船去上海。
12.For the transaction I wish to pay by cash.
我想用现金支付这笔交易。
13.I will contact you by letter.
我会给你写信联系的。
14.Lock this door by turning the key twice to the left.
锁这扇门要把钥匙向左转两圈。
