主语从句讲解

Whether he is my child remains a question
Tfboys要来成安的消息使我非常高兴
That Tfboys will come to chengan makes me very happy
我最需要的就是休息
What I need most is rest

What I say and think is none of your business. 主语从句谓语动词多用单数 What was once regarded as impossible has come true . Whether you like him is none of my business . When they will start and what they will do are still not known
Why which whoever whether what when that
What 与 that 引导的主语从句 What you said just now is right That she is still alive is a great news to us

规则: what 引导的主语从句在句子中充当成分 如主 语，宾语 表语； That 引导的主语从句在句子中只起连接作用但不能 省略。





由 that 引导: 1. That we shall be late is certain. 2. That the earth is round is known to all. (地球是圆的) 3. That you missed the chance is a pity. (你错过了这次机会) that 无意义, 后接一个完Biblioteka Baidu的句子。 that 不可省。
If we’ll go camping tomorrow depends on the weather.
Whether we’ll go camping tomorrow depends on the weather 引导主语从句只能用whether
What I say and think are none of your business.





(1)It + be + 形容词 ＋ that从句 It is necessary that… 有必要… It is important that …. 重要的是… It is obvious that…… 很明显…… (2)It + be + -ed分词 ＋ that从句 It is believed that… 人们相信… It is known to us/all that …. 众所周知… It has been decided that…… 已经决定…… (3)It + be + 名词 ＋ that从句 It is common knowledge that… …是常识 It is a surprise that …. 令人惊奇的是… It is a fact that…… 事实是…… (4)It + 不及物动词 ＋ that从句 It appears that… 似乎… It happens that …. 碰巧… It occurred to me that…… 我突然想起……





1. ______ he didn’t attend the meeting yesterday wasn’t quite clear. 2. The Foreign Minister said, “It is our hope ______ the two sides will work towards peace.” 3. ______ Mary has left is still a question. 4. It’s reported ______ three people were killed in the accident and five were hurt badly. 5. ______ he solved the problem successfully interested all of us. 6. It is a fact ______ English is being accepted as an international language. 7. ______ is to be sent there to solve the problem hasn’t been decided.

思考 主语从句引导词有哪些？如何选用？


引导词
从属连词 that 和 whether 连接代词 who whoever what whatever which whichever 连接副词 when where how why


语序 陈述语序

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”是指句型结构与连词之间的关系。 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；定语用what或which；什 么都不缺用that。
1.why2. that3. whether 4.that5.whether6.that7.who
What you left are only several old books. What you said is of great importance. “what”引导主语从句时, 谓语动词: 常与其后的名词作表语一致
他所需要的是食物 What he needs is food
他是不是我的孩子仍然是个问题
• 1)TOM'S EXCUSE Teacher:Tom,why are you late for school every day? Tom:Every time I come to the corner, a sign says,"SchoolGo Slow". • 师：汤姆,您为什么每天上学迟到? 汤姆：我每次路过拐角,一个路标上面写着："学校----慢 行." • 2)Tom call Jim's name:"I can't bear such a foolish!" and Jim say:"You mother could (bear)!" • 汤姆对着吉姆骂道:"我受不了你这个苯蛋了!" 吉姆说:"你妈妈能!" 附:bear 有两重意思:"生"和"忍受"这个笑话正是根据这点.






为了避免主语冗长, 句子头重脚轻, 经常用it作 形式主语, 主语从句放在后面作真正的主语. That we shall be late is certain. -- It’s certain that we shall be late. 1. That the earth is round is known to all. -- It is known to all that the earth is round 2. That you missed the chance is a pity. It is a pity that you missed the chance
• 4)A man goes to church and starts talking to God.He says:"God,what is a million dollars to you?" and God says:"A penny",then the man says:"God,what is a million years to you?" and God says:"a second",then the man says:"God,can I have a penny?" and God says "In a second" • 一男子进入教堂和上帝对话.他问:"主啊,一百万美 元对你意味着多少?"上帝回答:"一便士."男子又 问:"那一百万年呢?"上帝说:"一秒钟."最后男子请 求道:"上帝,我能得到一便士吗?"上帝回答:"过一秒 钟."







1．That he will come is certain. 2．Whether it will please them is not easy to say. 3．What seems easy to some people seems difficult to others. 4．Which side will win is not clear. 5．Why he did it remains a mystery. 6．When they will start is not known yet. 7．How he became a great scientist is known to us all. 8．Who will take part in the meeting has not been decided. 9．Whoever breaks the law will be punished. 10．Where she is from is unknown.


. ______ he didn’t attend the meeting yesterday wasn’t quite clear. ______ team will win the match is still unknown. ______ comes to the party will receive a present. ______ Mary has left is still a question. -----surprised me most was that the little girl could play the violin so well. -----we shall hold our sports meeting is not decided. -----she was chosen made us very happy.
When
will he come is not known When he will come is not known 主语从句一律用陈述语序 即 主语在前 谓语在后
He made an important speech at the meeting was true.
That he made an important speech at the meeting was true. That 无意义 但是不能省


基本概念 什么是主语？找出下列句子主语
I like English To see is to believe Smoking is bad for health What he has said is true





他通过了考试让老师很高兴 He passed the exam It made the teacher very happy He passed the exam made the teacher very happy That he passed the exam made the teacher very happy 他何时再来还不清楚 When will he come? It is not clear. When will he come is not clear When he will come is not clear