(
课件网) Unit 1 Science and Scientists Period 3 Discovering useful structures The Predicative Clauses 人教版 选择性必修二 人教版 选择性必修二 Period 3 Discovering useful structures The Predicative Clauses Unit 1 Science and Scientists 1. Enable the Ss to master the usage of predicative in this unit. 2. Enable the Ss to use the predicative patterns flexibly. 3. Train the Ss to apply some skills by doing the relevant exercises. Teaching Goals Grammar focus: Predicative clauses The question is who will do it. 定义：表语从句放在 之后，充当复合句中的 。 结构: It seems that it is going to rain. It looks as if he is unhappy today. 自我探究 主语+系动词 + 引导词 + 简单句 系动词 表语 Underline all the examples in the reading passage where noun clauses are used as the predicative. Then state their meaning and functions. 1.One theory was that _____ 2. Another was_____ 3. The truth was_____ that cholera was caused by an infection from germs in food or water. bad air caused the disease. that the water from the Broad Street pump had been infected by waste. S+V+P link verb Predicative 表语 Predicative is used _____ the link verb. A sentence which is used as predicative is Predicative Clause表语从句. ①be动词; ②感官动词：sound, taste, smell, look, feel; ③表示变化的词：go, get, turn, become. behind It look as if… It turned out that… 总结 Grammar focus: 表语从句之引导词 1.引导词的用法 (that) that在表语从句中 ,又 且_____ 省略。 1.The fact is that he hasn’t yet recovered from illness. 2.The reason why he has to go is that his mother is ill in bed. 既不充当成分 没有意义 不可 whether在表语从句中表 , 但_____句子的成分。 1.What the doctor really doubts is whether my mother will recover from the serious disease soon. 2.The question is whether it is worth doing. “是否” 2.引导词的用法 (whether ) 不充当 She asked me if /whether she could borrow these books . The question is if/whether we can rely on him. 在表语从句中, 表“是否” 时, 只能用“whether”不能用“if”。 I don’t know _____ he wants to go alone. The problem was _____ __he could come on time. √ if or whether if/ whether whether √ what 在表语从句中充当_____ 表示_____. 1. The question is what caused the accident. 2. That mountain is no longer what it used to be . 3. What he told you was what had been discussed at the meeting. 主语、表语、宾语 什么，什么样子，或所…的（人或事） 3.引导词的用法 (what) 主语 表语 宾语 who 在表语从句中充当_____表示____. The problem is who could do the work 2. My trouble is who (whom) I can turn to. 主语、宾语或表语 谁 4. 引导词的用法 (who) 主语 宾语 which 在引导表语从句时,常充当_____ 表示 。 I read about it in some book or another,but what I don’t know is which (book) it is. 定语,表语 其/当中哪一个 5.引导词的用法 (which) 定语 由as if ,as though引导表语从句，表示 。句子中的系动词常用look, appear, seem等。 1.It looks as if it was going to rain. 2.The young man with long hair looks as if he were a girl. 6.引导词的用法（as if, as ... ...
