二零二三年 优质公开课主语从句.pptx

主 语 从 句人教版高中英语必修三第四单元语法Noun clauses as the subject Part1 主语从句定义Part2 主语从句引导词 Part3 主语从句注意事项Part4 主语从句Homework目 录contents 1. Kate is good at playing the piano.2. He went out in a hurry.3. To see is to believe.4. Smoking is bad for you.5. What you said is right.Part1 主语从句定义找出主语,判断是什么做主语（名词）（代词）（不定式）（动名词）（句子）结论：（1）主语是句子说明的人或事物，一般放在____________. （2）在句子中充当____________的从句就是主语从句。句首主语 找出主语从句That he will pass the exam is certain.What she did is not yet known.Who will go makes no difference.Whether he will come isnt clear.Which book I shall choose hasn’t been decided.找出主语从句引导词Part2 主语从句引导词 6. When the plane is to take off has not been announced.7. Where the meeting will be held is not known.8. Why he cries is not clear. 9. How she keeps healthy is a secret10.Whoever breaks the law will be punished.11.Which book I shall choose hasn’t been decided.Part2 主语从句引导词 找出主语从句找出主语从句引导词 功能连接词不作成分that, whether作主、宾、表、what, who, whom, wh+ever作定语which, whose作状语when, where, why, how缺什么补什么原则Part2 主语从句引导词 “缺什么补什么”原则学法指导依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指从句与连词之间的关系。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。如缺定语用what或which。如什么都不缺用that，Whether表“是否”。 Part3 主语从句注意事项 (1).为什么他迟到仍然不清楚. is still not clear.(2).他会来是肯定的. is certain. 1. 从句用陈述语序Why he was lateThat he will come Part3 主语从句注意事项 观察下列三组句子的谓语，并尝试得出结论 2. 主谓一致（1）What I want is the book. What I want are some books.what 引导的从句做主语时，谓语的单复数取决它的_____.结论：（2）When and where we will hold our sports meeting has not been decided yet.由两个或者多个引导词引导单个主语从句时，主句谓语动词用_____结论：（3）When they will start and where they will go have not been decided yet.结论：由and连接两个或两个以上主语从句做主语时，主句谓语动词用_____ Part3 主语从句注意事项 3. it做形式主语的结构That he will refuse this piece of advice is impossible.= It is impossible that he will refuse this piece of advice.注解：一般来说主语从句都是放在 , 但有时为了使句子 , 避免”头重脚