For several years好几年
In this way用这种方式，以这种方式
For many years去多年
During his lifetime在他有生之年 lifetime有生之年，一生
By the end of his life在他生命的最后阶段，在他生命结束时 By the end of在...结束时
It is a pity that+句子 遗憾的是，很可惜（整体记，后面只要加上遗憾的事） pity遗憾，可惜
by +doing sth.----划线提问用how
①by reading the textbook；by asking the teacher for help
②How can I learn English well?---By reading every morning.
2）by+地点，“在...的旁边；靠近...”by the lake在湖边
3）by+时间，“截止到...；不迟于...” by ten十点前
It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
解析：It is said that…是一个固定表被动语态的结构，意为“据说”。此句型也常用于新闻报道中。It作形式主语，that从句是真正的主语。类似的句型结构还有：
It is known that 众所周知…
It is reported that 据报道…
It is supposed that 据推测…
It is believed that 人们相信…
The future world未来世界
Sad beauty凄美，悲伤的美 beauty美，美人
Paint a picture画一幅画
by the way 顺便问一下 by accident= by chance 偶然地 by mistake 错误地 one by one 一个接一个
step by step 一步一步地 little by little 逐渐地
by the time 到……为止 by oneself 独自地
by hand 用手 by the end of 到….... 末尾
go/pass by 通过；经过 by and by 不久以后
by与with, in 的区别：
with +工具 We like to write with a pen.
with+人体部位 We see with our eyes.
Well, you do seem to have a point.
该句子为强调句，用“助动词do/does/did + 动词原形”的结构。
例如：You do did a good job. 你确实干得不错。
He does look well. 他看起来确实不错。
have a point 意为“有道理”
例如：I think what the teacher said has a point.