从句

• A comma is sometimes used to set off a clause in a sentence
  逗号有时用来隔开一个句子中间的从句。
• A mood , tense , clause , or word expressing a condition
  条件（从句）表示条件的语气、时态、从句或词
• The problem is how we can protect the wild animals
  （同位语从句）请注意如何保护野生动物这个问题。
• The idea was that we could ask the teacher for advice
  （同位语从句）地球围绕太阳转，这个事实人人皆知。
• Adverbial clause of unreal condition
  非真实条件状语从句
• Cannot generally be foreseen in detail
  是宾语从句的谓语
• Which team has won the game is not known yet
  引导主语从句同时作从句的定语)还不知道哪个队赢了这场比赛。
• We need to buy three table cloths
  为非限制性定语从句。
• Sentences can be broken up into clauses , and clauses into phrases
  句子可以分成从句，从句有可分成短语。
• Some philosophers argue that . 2 that
  引导的是宾语从句