英语人教版必修3授课课件：Unit 4 Astronomy_the science of the stars（5）.pptVIP

Astronomy: the science of the stars ----grammar Learning aim To master the subject clause I think it is unnecessary for me to speak louder. This is makes us interested. that what Revision: 用连接词填空 Noun Clauses (名词性从句) Subject Clause (主语从句) Appositive Clause （同位语从句） Object Clause （宾语从句） Predicative Clause （表语从句） Subject主语表明这句话说的是谁和什么 A tree has fallen across the road. You are a student. Smoking is bad for you. The unemployed usually have a hard life. That she left him made him heart-broken. Subject Clause主语从句 在句中充当主语的从句叫做主语从句。 That he is still alive is a good news to us. Whether he’ll take part in the play is clear. Who will win the game remains to be seen. Which side will win is not clear. Whoever breaks the law will be punished. How he became a great scientist is known to us all. Where we will hold the basketball game is not important. 一般来说主语从句都是放在????????? 。 句首 主语从句引导词 : ______________________________________ What we discover about the structure that , whether ,how, wh- 连接词：that 引导主语从句只起引导作用，本身 实际意义，在主语从句中 任何成分，但 省略。 That we keep a balanced diet is good for our health. That he will refuse this piece of advice is impossible. That he will win the match is certain. That the earth goes around the sun is a fact. Grammar Rules 一、连接词1.that 无 不充当 不能 2.whether Whether we will go tomorrow hasn’t been decided yet. Whether she will come is not important. Whether he’ll take part in the play is clear. Whether he can buy the plane tickets doesn’t matter much. 连接词： whether 引导主语从句，本身 实际意义， 的意思， 在主语从句中 任何成分，位于句首 if替代。 有 不充当 不能用 是否 3.wh-, how Read the sentences on your learning plan, then fill in the blanks. 连接词： how, wh-引导主语从句，本身 实际意义，在主语从句中 句子成分。 主语从句中缺主语，宾语，表语，定语用： 可做状语的连接词： 有 充当 who, what, which, whoever, whatever等连接代词 when, where, why