1、主语主语是一个句子所叙说的是一个句子所叙说的主体主体，表示句子所说的是表示句子所说的是“什么人什么人”或或“什么事物什么事物”，一般位于，一般位于句首句首. .主语主语主主语语1. 名词，名词化的形容词名词，名词化的形容词2 数词，代词1.单个单个 的词的词2. 短语短语11动词不定式短语动词不定式短语22动名词和短语动名词和短语33名词短语名词短语3.句子句子句子句子从句从句1. 名词名词Water is very important to us human beings. Dogs are useful animals. Students are proud of his success.
2、一、单个的词一、单个的词The disabledThe disabled need to be respected. need to be respected. The youngThe young should respect the old should respect the old2.(2.(名词化名词化的形容词的形容词) )Nothing is yet certain. 一切都还没有肯定。一切都还没有肯定。All are equal before the law. We often play basketball after class.Who answers the questio
3、ns?3.代词代词Thirteen is an unlucky number.The first is to finish the task on time.4.4.数词数词二、短语作主语二、短语作主语1.1.名词短语名词短语Popular musicPopular music are popular with students. are popular with students. SomeSome students herestudents here study hard every day. study hard every day. TheThe waterwater herehere
4、 has been polluted. has been polluted. TheThe carcar overover therethere is made in China. is made in China.2.2.动词不定式短语动词不定式短语To drink a cup of cold drink in such To drink a cup of cold drink in such hot weatherhot weather is a great pleasure. is a great pleasure. To get up earlyTo get up early is n
5、ecessary. is necessary.It It is not easy is not easy to work out the problemto work out the problem. . It It is interesting is interesting to play with snow in to play with snow in winter.winter.3.3.动名词或动名词短语动名词或动名词短语做做主语主语Swimming alone in the riverSwimming alone in the river is very is very danger
6、ous.dangerous.SmokingSmoking is harmful to your health. is harmful to your health.It It is no use is no use waitingwaiting herehere. .= = waitingwaiting herehere is no use. is no use.It It is a waste of time is a waste of time sittingsitting inin frontfront ofof thethe televisiontelevision allall da
7、yday. .That She won the first one was a good news. She won the first one.三、三、从句从句做主语做主语ThatThat she did not hand in the homework on she did not hand in the homework on timetime was a bad thing. was a bad thing. She did not hand in the homework on time. She did not hand in the homework on time.陈述句陈述句
8、Whether they will hold a party tonight has not been decided.Will they hold a party tonight ? 一般疑问句一般疑问句What she saidWhat she said is correct. is correct. What did she say?What did she say?Who will write a poemWho will write a poem has not been decided yet. has not been decided yet.Who will write a p
9、oem?Who will write a poem?特殊疑问句特殊疑问句How this happenedHow this happened is not clear to anyone. is not clear to anyone.How did this happen?How did this happen? When we are going to have an English testWhen we are going to have an English test has not been decided.has not been decided.When are we goin
10、g to have an english test?When are we going to have an english test?特殊疑问句特殊疑问句感叹句感叹句How good a student (she is)How good a student (she is) is a fact. is a fact.How good a student (she is)!How good a student (she is)!What hot weather (it is)What hot weather (it is) is a bad situation. is a bad situat
11、ion.What hot weather (it is) !What hot weather (it is) !“how do you do ?”how do you do ?” is a greeting. is a greeting.四、四、句子句子用做主语用做主语It It is certain is certain that she will do well in her exam.that she will do well in her exam.It It is a pity is a pity that we cant go.that we cant go.It It is sa
12、id is said that she won the first one.that she won the first one.It It happened happened that I was out that day. that I was out that day. It It doesnt matter doesnt matter whether she will come or not. whether she will come or not. It is a pity It is a pity that you missed the chance.that you missed the chance.you missed the chance.you missed the chance.1. 1. It It +be adj + +be adj + 3. 3. It It + n + + n +4. 4. It It + + 2. 2. It It +be pp + +be pp +从句陈述句（肯定）陈述句（肯定）一般疑问句一般疑问句特殊疑问句特殊疑问句感叹句感叹句Vi/phrase +Vi/phrase +
