When we will leave hasn’t been decided.
How she keeps healthy is a secret.
Why he cries is not clear.
Where the meeting will be held is not known
•主语从句的特点：
新蔡二高15级英语组杨瑞公开课
主备课人：杨瑞17.12.2
课时1课题：
Noun clauses as the subject(主语从句)
三
维
教
学
目
标
1、知识目标
To reviewNoun clauses as
the subject
2、能力目标
To use the importantNoun clauses as
2.明确it作形式主语和形式宾语、代替主语从句及宾语从句的பைடு நூலகம்法，及其与强调句的区别。
3.区分that引导的同位语从句及定语从句
Step4.学习引导词
(1)That he will come is certain.
Whether he will come is uncertain.
_____只起引导作用，本身无意义，不充当任何分，但不能省略。
教学思路：
先复习五大基本句型及句子成分,让学生先在大脑中构建出句子的大框架.随后重点复习主语的概念,可以做主语的词类为要学的主语从句做铺垫.课中列举大量的句子帮助学生理解主语句子.课后让学生尽力尝试用主语句子进行写作练习.
教学过程：
Step1.review (复习主语)
主语：是一个句子说明的人或事物,即叙述的主题，一般位于______。
the subject
3、德育目标
To improve the students’ love of English and writing
重点：The usage of importantNoun clauses as the subject
难点：
How to improve the ability of using important .Noun clauses as the subject
教学反思：
本课内容充实，习题形式多样，经过读，练习，应用相结合的课程设计，基本可以让学生记住主语从句的基本用法。课前对基本句式和句子成分的复习再次让学生对句子进行一次整体感知让学生获得了学习的成就感.
Step2. Read and remember (感知句子)
他通过了考试让老师很高兴。
He passed the exam.
It made the teacher happy.
He passed the exam made the teacher happy.
他何时要来还不清楚。
When will he come?
It is not clear.
When will he come is not clear.
When he will comeis not clear.
That he passed the exammade the teacher happy.
Step3.考纲专题解读
1.了解名词性从句的基本用法，掌握名词性从句的引导词及引导词在名词性从句中的作用，辨析that与what,if与whether等引导词的用法。
whether不做成分，表“_______”。
在主语从句中只能用_________,不能用___
(2)Who will go makes no difference.
What we need is more time.
Which book I shall choose hasn’t been decided
1.引导词：
从属连词that, whether；
连接代词who, what, which；
whoever, whatever, whichever;
连接副词when, where, how和why。
2.语序：陈述句语序
3.在主语从句中只能用whether,不能用if
Step5.homework
用主语从句写20个句子
Jim is good at playing the piano.
To see is to believe.
Smoking is bad for health.
What he has said is true.
在主从复合句中充当主语的从句就是主语从句,它是名词性从句之一。引导主语从句的连接词有：
从属连词that, whether；连接代词who, what和which；连接副词when, where, how和why