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课件20张PPT。Subject clause 主语从句Jane is good at playing the piano.
To see is to believe.
Smoking is bad for health.
What he has said is true. Find the subject(名词)?????（不定式） （动名词） (从句） What she said is not yet known.
That we shall be late is certain.Find out the subject clauseTip : find the verb first充当主语的句子就是主语从句。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。That he will come is certain.
Whether he will come is uncertain.引导词1) 从属连词that和whether：
whether 不做成分，表“_______”that是否不做成分，无意义，不能省略。
What we need is more time.
Which book I shall choose hasn’t been decided.2) 连接代词who, what, which, whoever, whatever, whichever, whom, whose引导词What/ which在主语从句中做主语或宾语.
which意为“哪个、哪些”,使用which在前文必须有范围.
Whoever breaks the law will be punished.
Whatever he did is right.引导词 whatever=anything that
whoever=anyone whoWhy he cries is not clear.
Where the meeting will be held is not known.3) 连接副词when, where, how ,why引导词making sentences1) It is + adj/n +that
It’s certain that… 肯定…
　 It is obvious/clear that… 很明显…
It is a pity that... 可惜的是……
_______________(很可能)she will come back tomorrow.
*_______________(很明显) he is an English.It is possible thatIt is obvious thatit 做形式主语的主语从句_______________(很可惜)we lost the match.*______________(这是事实)he cheated in the exam.It is a pity thatIt is a fact that2) It + be +过去分词+从句
It is said that... 据说……
It is suggested that + (should）do... 建议……
*_________________(据报道)20 people were killed in the accident.
*__________________(建议)we should eat more vegetable and do more exercise.
It is reported thatIt is suggested that3) It +不及物动词+that
It happened that... 碰巧……
It turned out that… 原来…
*________________(刚好)I was out yesterday.
*____________________(我突然想起)I forgot to sent the letter.It happened thatIt occurred to me that他何时要来还不清楚。
When will he come?It is not clear.
When he will come is not clear.
Features特点一：主语从句一律用陈述语序，即主语在前，谓语在后。 1. What he needs ___ that book.
2. What he needs ____some books.is特点二：多数谓语动词为单数，有时也通过表语确定单复数。areWhen the meeting will begin _____ (have) not been decided yet .hasWhen they will start and where they will go _____(be) still unknown.areApplication他是不是我的孩子仍然是个问题。Whether he is my child remains a question.What I like most is your hairstyle.我最喜欢的是你的发型。What I need is rest.我需要的就是休息。It is believed that the word diaosi reflects social problems.据认为“屌丝”这个词反映了社会问题。It is common knowledge that we should wear rain shoes on rainy days.雨天要穿雨鞋（rain shoes）是常识。What do you think of grammar learning?
How can you learn grammar well?In my opinion, it is very important _____________________ (我学好语法) because it can help me with my writing and my sentence structure. _____ is known to all that grammar is really a bridge to success. Believe it or not, it doesn’t matter _______ we can recite all those grammar rules. _______ we need to do is try to understand and use the language.ItwhetherWhat Thanks for your time！附件2：
兵团第十二师高级中学微课教学设计
授课教师姓名
微课名称
主语从句
知识点来源
□学科： 英语 □年级：高一
□教材版本： 人教版必修三 2019年7月第3版
□所属章节：人教版必修三第四单元
录制工具和方法
微课轻松录（单机版） +PPT软件
设计思路
1。进行知识讲解和梳理
2，讲练结合
3.迁移应
教学设计
内 容
教学目的
让学生掌握主语从句的概念和结构，主语从句中引导词的用法以及几类典型的主语从句的句型，学生能够准确地给主语从句选用引导词。
教学重点难点
重点和难点：如何让学生掌握主语从句的概念和结构，主语从句中引导词的用法主语从句中引导词的用法以及几类典型的主语从句的句型，以及能够准确地给主语从句选用引导词。
教学过程
1.主语从句的定义和结构。
2. 主语从句中引导词的用法。
3. 几类典型的it做形式主语的主语从句。
4. 学以致用进行巩固练习。
教学反思
本节微课按照语法讲解固有的模式展开教学，备课再能精心些设计上体现创新点会更好。

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