（2）主语从句
　　
　　That the sun moves around the earth is the truth.（ it is the truth that……）
　　
　　Whether it is raining is not known.
　　
　　It is not known——computers will one day have vision as good as human vision.
　　
　　A.whether B. if C. that D. how
　　
　　It goes without saying that we are not living in a traditional society.
　　
　　Who will come to the meeting remains unknown.
　　
　　翻译题 ： In a sense， what he said amounts to threat.
　　
　　（3）表语从句
　　
　　Your greatest fault is that you are careless.
　　
　　The problem is what we should do to help him.
　　
　　（4）形容词补语从句
　　
　　We feel proud that our team has won every match this year.
　　
　　He wasn't sure whether he should stay or leave.
　　
　　Are you certain who he is
　　
　　（5）同位语从句
　　
　　（fact， news， idea， opinion， concern， hope， theory， decision， discovery， conclusion， report，
　　
　　order， question， problem， belief， truth， answer， statement， promise， possibility.）
　　
　　The news that he intended to come gave us much pleasure.
　　
　　（6）状语从句
　　
　　时间状语从句
　　
　　When I studied， the bell rang.
　　
　　She was going upstairs when suddenly the light went out.
　　
　　He had no sooner died than / he had hardly died when the family arguments began.
　　
　　地点状语从句
　　
　　He live where he liked.
　　
　　原因状语从句
　　
　　He was late because he missed the bus.
　　
　　Now that you mention it， I do remember.
　　
　　I'm in a slightly awkward position， in that my secretary is on holiday at that moment.
　　
　　目的状语从句
　　
　　We have so arranged matters that one of us is always on duty.
　　
　　Bring it closer so that I may see it better.
　　
　　结果状语从句
　　
　　He brought a big house so（ that） he had more space to paint in.
　　
　　He made such a good speech that he won warm applause.
　　
　　翻译题 ：The brothers looks so alike that it is difficult to tell them each other
　　
　　条件状语从句
　　
　　If I make a promise， I keep it.
　　
　　I'll lend you the money ， as/so long as you take my advice.
　　
　　These messages will become rubbish unless some measures have been taken.