连词(conj.)
”任何人都会使用名词，受过教育的人才会使用动词，受过极好教育的人才会使用连词。“
”当你能够熟练使用连词，你才能写出文章来。“
国外大学在开课之前，都会问：是什么？为什么？怎么学？
连词是什么？
用于连接句子，并体现其关系的词。
Knowledge(Discrete) -> Experience(Knowledge with connections.)
Confused:
I often eat hamburgers. I get a low salary. Hamburgers are junk food.
After adding conjunctions:
Hamburgers are junk food, but I often eat hamburgers, because I get a low salary.
GRE不考英文，考逻辑。
人们呈现连词的时候，他们使用连词来呈现。
添加细节使行文连贯。
连词为什么？
There are two kinds of people in the world, people who know conjunctions and those who don’t.
连词怎么学
连词有四类，分别对应四种逻辑关系，并列，转折，因果，条件。
并列连词
… not only … but also…
… not only … but … as well
使用情况：一个事物，两个优点；
- 一个事物，主语相同。
- 两个优点，互相叠加。
长得好看又善良。
She was not only beautiful but kind as well.
sneaker n. 运动鞋
一只运动鞋不仅是只鞋，还是一个朋友。
A sneaker is a not only a shoe, but a friend as well.
达芬奇（多才多艺，欧洲，艺术家，科学家）。
达芬奇是艺术家，达芬奇是科学家。
加和：达芬奇不仅是艺术家，还是是科学家。
Leonardo was an artist. Leonardo was a scientist.
Leonardo was not only an artist, but a scientist as well.
达芬奇不仅喜欢艺术，还热爱科学。
Leonardo liked art. Leonardo loved science.
He not only liked art, but loved science as well.
北京是一座巨大的城市，而且非常时髦。
Beijing is a large city. Bj is very modern.
Bj is not only is a large city, but very modern as well.
中国人热爱北京，外国人热爱北京。
The Chinese love BJ. Foreigners love BJ.
不仅中国人热爱北京，还有外国人。
Not only the Chinese, but also forieners love BJ.
北京因历史而著名。北京因文化而著名。 北京之所以著名，不仅因其历史，还因其文化。
BJ is famous for its history. BJ is famous for its culture.
It is famous not only for its history, but for culture as well.
转折连词
形式：but
A, but B.
注意：A和B都是完成句子。逗号相连，but小写。
前后矛盾。
house：指的是2层以上，又七八个房价，有草坪和停车库。
100平米房子：flat/apartment.
XM has a bit flat, but he does have a girlfriend.
罗曼罗兰（法国），爱情悲剧只有三种：
- 你爱他，他不爱你。
- 他爱你，你不爱他。
- 你们相爱，却不能在一起。
You love him, but he doesn’t love you.
He loves you, but you do not love him.
You love each other, but you cann’t be together.
I went to bed late last night, but I got up early this morning.
I got up early this morning, but I am not sleepy now.
I am not sleepy now, but I want to have a break(I want to take a rest).
因果关系
形式：because
A, because B.
Because B, A.
注意：A和B都是完整句子。
内容：万事皆有因。
My favorite question is WHY, WHY, WHY. — Larry King
我现在不能睡觉，为什么？我在制作一个视频。
I can not sleep now, because I’m making a video.
Because I am making a video, I can not sleep now.
You gave me faith ‘cause you believed. I’m everything I am because you loved me.
I’m interested in English because it’s a useful language.
如何写论文？当遇到一个问题，你不断的问为什么，把你想到的都写下来。
条件
形式：if
If A, B.
B if A.
注意： A和B都是完整句子。
内容：生命中的可能。
Nothing is impossible. Anything is possible.
If A does sth., B will/can/… do sth.
If you have a question, I will answer it.
If you want to leave, you can go now.
If you are interested in English, please follow me.
Please follow me, if you are interested in English.
If we play a game, the time will go faster.
If we play for money, the game will be more exciting.
If I can’t answer a question, I will give you fifty yuan.
总结
四种关系：并列，转折，因果，条件。
A moment to learn, a lifetime to perfect. 掌握它需要很短时间，变得完美需要一生。