1、 高中英语高中英语Unit 5 WORKING THE LAND名词性从句名词性从句 名词在英语句子中可以充当主语，宾语，表语和同位语；名词性从句其实就是用从句充当一个名词的作用，在更大的句子中充当主语，宾语，表语和同位语，这便有了主语从句，宾语从句，表语从句和同位语从句。主语从句的定义：在句中充当主语的从句叫做主语从句。My job is important.What I have done is important.主语引导名词性从句的连接词有从属连词、连接代词和连接副词从属连词、连接代词和连接副词。从属连词从属连词（不做成分）that、whether/if连接代词连接代词（主语，宾语，表
2、语或定语）who,whoever,whom,whomever,what,whatever,which,whichever,whose,连接副词连接副词（状语）when,whever,where,wherever,why,how,however知识点：引导名词性从句的连接词知识点：引导名词性从句的连接词知识点一：从属连词：知识点一：从属连词：that、whether、if在引导名词性从句中只起引导作用，且不充当任何成分。在引导名词性从句中只起引导作用，且不充当任何成分。1.That price will go up is certain.2.It doesnt matter whether/if
3、 Mary will come or not.that不做成分，无意义whether/if不做成分，意为“是否”1._ I had won the match made my parents excited.2._ she will agree with me doesnt matter.3.I wonder _ the answer is right.Thatwhetherif知识点二：连接代词：知识点二：连接代词：who,whoever,whom,whomever,what,whatever,which,whichever,whose在引导名词性从句中不仅起连接作用，还充当成分在引导名词性
4、从句中不仅起连接作用，还充当成分(主宾表定主宾表定)。1.Who will attend the match has not been decided.2.Dont ask about what the meeting is for.3.Whoever does best will get the prize.who引导的主语从句what引导的宾语从句whoever引导的主语从句1._ my teacher said encouraged us.2._ will be sent to attend the meeting has not been decided.3._ she did was
5、 right.4._ comes to my class will be welcome.5.It made us sad _ a small house they had.6._ you invite is welcome.WhatWhoWhateverWhoeverwhatWhomever知识点三：连接副词：知识点三：连接副词：when,whever,where,wherever,why,how,however在引导名词性从句中不仅起连接作用，还充当成分在引导名词性从句中不仅起连接作用，还充当成分(状语状语)。1.Where Lucy comes from is unknown.2.Why
6、 Mr.Smith is late for the meeting has not been found out.where引导的主语从句why引导的主语从句1._ the lost child went is still a puzzle.2._ he will be back depends on the weather.3.Nobody can explain the thing _ he suddenly cried.指出画线句子是什么从句，引导词在从句中作什么成分？4.Tell me why you dont like school.5.Where a person lives do
7、esnt matter.6.That is why Tom turned me down.WhereverWhenwhy宾语从句，why在从句中作原因状语主语从句，where在从句中作地点状语表语从句，why在从句中作原因状语知识点四：知识点四：It作形式主语作形式主语在引导名词性从句中为了避免头重脚轻，通常用在引导名词性从句中为了避免头重脚轻，通常用it作形式主语，作形式主语，用以保持句子的匀称。用以保持句子的匀称。1.Whether he will agree with me doesnt matter.2.It doesnt matter whether he will agree wi
8、th me.whether引导的主语从句it作形式主语，真正的主语为whether引导的从句形式一：形式一：It be adj.that从句从句用于该句型中的形容词常见的有：用于该句型中的形容词常见的有：necessary,right,important,obviuos,possible,likely,certain等等eg.It is obvious that we are sure to win the match.It is important that we should learn English well.It is essential that we should estimat
9、e the price of the coat.形式二：形式二：It be n.(名词词组名词词组)that从句从句用于该句型中的用于该句型中的n.(名词词组名词词组)常见的有：常见的有：a pity,an honour,no wonder,a fact,a wonder,a surprise,good news等等eg.It is a pity that you didnt pass the exam.It is no wonder that you have caught a cold.It is good news that he has recovered.形式三：形式三：It be
10、过去分词过去分词 that从句从句常见的该句型有：常见的该句型有：It be said that.(据说据说.).)It be reported that.(据报道据报道.).)It be suggested that.(人们建议人们建议.).)It be hoped that.(人们希望人们希望.).)It be believed that.(据查明据查明.).)1.It is reported that more than 100 workers were killed in the accident.2.It is considered that women live longer th
11、an men.3.It is pointed out that the professor has already worked out the difficult problems in mathematics.形式四：形式四：It be 特定动词特定动词 that从句从句常见的该句型有：常见的该句型有：It happens that.(碰巧碰巧.).)It occurred to sb.that.(某人突然想起某人突然想起.).)It hit sb.that.(某人突然想起某人突然想起.).)It seems that.(看起来看起来.).)1.It happened that John
12、went to school when I called him.2.It occurred to me that he had been to Beijing.3.It seems that my headteacher,Mr.Smith,is going to the office.1._is a fact that Chinese is being accepted by more and more foreign friends.2.It is uncertain _ my uncle will come to my grandpas birthday party or not.3._
13、 he made an important decision at the meeting was true.4._is known to us all that China is a developing country.5.Every year,_ does best in this game will win the first prize.随堂练习ItwhetherThatItwhoever1._(可能)my dad will go to Beijing tomorrow.2._(很明显)this way is useful.3._(很遗憾)my brother didnt pass
14、the exam.4._(据报道)20 kids were killed in the accident.5._(建议)we should eat more vegetable and do more exercise.6._(碰巧)I came into the office at that time.7._(我突然想起)I forget to send the letter.It is possible thatIt is obvious thatIt is a pity thatIt is reported thatIt is suggested thatIt happened thatIt hit me that谢谢大家谢谢大家
