学习目标：1. 掌握主语从句的基本概念；2. 能从句中找出主语从句，并翻译句子；3. 能够概括出主语从句的引导词；4. 学会根据句意选择恰当的引导词。 Revision Find the subjects in the following sentences.1. A tree has fallen across the road.2. You are a student.3. To find your way can be a problem.4. Smoking is harmful to you.5. What she said is not yet known.6. That we shall be late is certain.7. It’s certain that we shall be late. 主语从句在句中充当主语的从句叫做主语从句。 1That he will come is certain.2Whether it will please them is not easy to say.3What seems easy to some people seems difficult to others.4Which side will win is not clear.5Why he did it remains a mystery.6When they will start is not known yet.7How he became a great scientist is known to us all.8Who will take part in the meeting has not been decided.9Whoever breaks the law will be punished.10Where she is from is unknown.Find the subject clauses in the following sentences, and translate them.思考：主语从句有哪些引导词，这些引导词如何选用？ 主语从句的引导词：连词 that , whether 连接代词 who(ever), whom(ever), which(ever), what(ever)连接副词 where ,when ,why ,how 依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指句型结构与连词之间的关系。如果句子中缺主语，指人用 who ，指物用 what ；如缺宾语，指人用whom ，指物用 what ；如缺时间状语用 when ；地点状语用 where ；原因状语用 why ；方式状语用 how ；定语用 what 或 which ；什么都不缺用 that 。Where he will go is unknown. What you said yesterday is right.That he knows Japanese is known to all.Whether he is coming doesn’t matter much. Complete the sentences using what, whether, where, when ， who, why, how or that.1.(_____ is needed for success) is your hard work.3.(_____ we will go tomorrow )hasn’t been decided yet.2.(______...
