1 时间
  You must be back before dark.
  He ran into the restroom as soon as he arrived at the railway station.women我们赶到机场时，我们的航班已经起飞了。
2 地点
  He work at the office.我盼望尽快回到我出生的地方。
  We want to camp where we can get water.
  Where there is poverty, there is war.
3 方式
  They welcomed us in a friendly way.
  You harvest as you sow.少废话。照我说的做。
4 原因     由于国庆节期间许多人要出游，交通拥挤就在所难免。
  I didn't go out because of rain.
  I didn't go out because it was raining.
I didn't go out for it was raining.
5 结果 so... that..... 今天天气好得让我在家呆不住。
  Their team won at last.有些学生学习勤奋，都废寝忘食了。
  1 主系表 She is so pretty that I can never forget her.
  2 主谓 He ran so quickly that I counldn't catch up with him.
6 目的 叙利亚难民冒生命危险逃往欧洲，为的是年轻人和孩子好好活下去。
  Xi visited USA for harmony.
  Xi visited USA so that he and Obama would establish a healthy relationship between two powers.
7 让步 尽管阿拉伯人都不帮助难民，但欧洲国家承担了责任。
  The Japanese man drives his taxi 8 hours a day in spite of his old age.
  I am gentle although I am ugly.
  No matter who you are, you must obey the law.

8 条件
1)条件I will help you if you are in trouble.如果你想考好成绩，你就要把注意力集中在学习上。
2)假设Many workers would be out of work if the factory closed down.在台湾，如果亲日的人当选了下届总统，海西两岸就没有安宁。
3)绝对假设I would have gone to visit you if I had known you were in hospital.假若美国不撤离中东，伊斯兰国就不会出现。
情态动词（过）+现在完成时=与事实不符
I would have gone to see the film.我本来去看电影。
She should have been my wife.
Unless=if not
I will go out unless it rains.
Take an umbrella with you providing it rains.
Provided
providing
9 比较
1)平级比较as...as....
          副词  连词
I am as old as you are old.
他赚钱跟我一样多。
中国的天气与美国的天气差不多。
2)差别比较
飞机比火车要快很多。
我晚上要比晚早上吃得少。

判断：（简单？并列？复合？）
1 The news that his afther died came to me.
2 It is said where there is a will there is a way.
3 Nobody will inform you what he has succeeded in.
4 You get what you pay for.
5 Whenever you come across difficulties you may ask me for help.
6 The young soldier risked losing his precious life to save the woman in the river.
7 Is pleasure so attractive to you that you turn away from school?