分词短语可以用在after， before， since等介词后面。，before,after,since,单词记忆法、语法用法，与before,after,since, 相关例句、名人名言

before单词相关例句：

Don't count your chicken before they are hatched. 不要过早乐观。
Don't count your chickens before they are hatched. 蛋未孵，别先数鸡。
Cast not your pearls before swine. 明珠莫投暗。
Rain before seven; fine before eleven. 雨过天晴。
Laugh before breakfast you'll cry before supper. 乐极生悲。
Laugh before breakfast and you'll cry before supper. 笑得早也会哭得早。
One hour's sleep before midnight is worth three after. 午夜前睡一小时抵得上午夜后睡三小时。
The golden age is before us, not behind us. 黄金时代是在我们前面而不在我们背后.
Learn to walk before you run. 循序渐进。
If each would sweep before his own door, we should have a clean city (or street). 众擎易举。
after单词相关例句：

After dinner sit a while, after supper walk a while. 午饭后要坐，晚饭后要走。
After dinner sit a while; after supper walk a mile. 午餐之后坐片刻，晚饭之后走一里。
My father had always said that there are four things a child needs plenty of love, nourishing food, fegular sleep , and lots of soap and water---and after those, what he needs most is some intelligent neglect.——Ivy Baker Priest, American officer of government 我父亲总是说，一个孩子需要四样东西--充分的爱、富于营养的食物、有规律的睡眠、大量的肥皂和水--这些完了呢，他最需要的是一些明智的放任。美国政府官员 普里斯特.I.B.
Do not run too fast after gain. 不要见利就拼命追。
If you run after two heares, you will catch neither. 两头落空。
How much more profitable for the independent mind, after the mere rudiments of education , to range through a  library at random, taking down books as the mother wit suggests!John Henry, British Cardinal Newman——受到初步的基础教育之后，对于愿意独立思考的人来说，在图书馆里信手取下一本书来，根据个人的天赋随意涉猎，这该是多大的好处啊！英国纽曼红衣主教  享利  J
Rain comes after sunshine, and after a dark cloud, a clear sky. 晴日之后有雨水，乌云过去见青天。
Counsel after action is like rain after harvest. 放马后炮。
Man aspires after happiness and trees wait for the advent of spring. 人望幸福树望春.
The ideals which have lighted my way , and time after time have given me new courage to face life cheerfully 19 have been kindness , beauty and truth .(Albert Einstein , American scientist)  有些理想曾为我们引过道路，并不断给我新的勇气以欣然面对人生，那些理想就是--真、善、美。 (美国科学家 爱因斯坦 . A .)
since单词相关例句：

I have long since abandoned the notion that higher education is essential to  either success or happiness. Hot houses of learning do not always grow anything edible.Robert Moses, American state govenment officer——我早已抛弃了这种观念：高等教育是通往成功或者幸福的必由之路。知识的“温室”并不总能生长可供食物用的粮食。美国州政府官员  摩西  R
The laws of Nature, that is to say the laws of God, plainly made every human being a law unto himself, we must steadfastly refuse to obey those laws, and we must as steadfastly stand by the conventions which ignore them , since the statutes furnish us peace, fairly good government and  stability, and therefore are better for us than the laws of God, which would soon  plunge us into confusion and disorder and anarchy if we should adopt them.Mark Twain, American  writer自然法即神灵法，只是用来约束每一个个体的法律，我们必须坚定地拒绝遵守。我们应该坚定地遵守忽视神灵法的规章制度，因为规章制度赋予我们和平、比较好的政府和稳定，因而对我们来说，规章制度比神灵法更好，因为如果我们采用神灵法的话，他会将我们陷入迷惑、无序和无政府状态。美国作家   马克·吐温A
Be not angry that you cannot make others as you wish them to be, since you cannot  make yourself as you wish to be.Thomas Mann, German writer——不要由于别人不能成为你所希望的人而愤怒，因为你自己也不能成为自己所希望的人。德国作家  托马斯·曼

The United States is a republic, since its citizens elect people to represent it.
美国是共和制，因为每个公民都能选人去代表他们。


I'm lame since my accident; I need the help of my arms to walk.
事故之后我就瘸了，我需要手来帮助我走路。


Primitive men made fire by themselves since they had no electricity.
原始人不能用电，只能自己生火。


Ever since she started her diet, she has had a very slim figure.
她的身材自从节食开始就很苗条了。


Great changes have taken place in China since the introduction of the reform and opening policy .
改革开放以来，中国发生了巨大的变化。


They greet each other out of manners, since they are just acquaintances.
他们招呼对方是出于礼貌，因为他们只是泛泛之交。


I like the white sheet since it looks clean.
我喜欢这个白床单，因为它看起来很干净。