高中语法主语从句课件

1、高中语法主语从句课件高中语法主语从句Object Clause（宾语从句）Noun Clauses（名词性从句）Predicative Clause（表语从句）Subject Clause（主语从句）J Appositive Clause （同位语从句）Unit 4Astronomy: the science of the starsSubject Clause主语从句Find out the subject（主语）in each sentence.L A bookdhroirtherdesicnoun名词2. SmokingTS IradoryoiL- verbal noun代词4 MLar

2、e_ajstudent-pronoun 代词3. To find aoo4jHMsmyream；加仃山断。 不定式5. That we will be late is certain.6. It is certain that we shall be late.A sentence served as（克 音） subject is called Subject Clause.【例句呈现】观察下列例句，指出其中所包含的主语 从句及连接词：1. What is needed for a long trip is careful preparation.该句中主语从句是 What is neede

3、d for a long trip ,连接词为 what °2. That Taylor Swift will come to my city excites everybody.该句中主语从句是i hat Taylor Swift will come to my city ,连接词为 that。3. Whether we will travel abroad or not . has not been decided.该句中主语从句是 Whether we will travel abroad or not , 连接词为 whether oSubject Clausedefinit

4、ion定义order语序陈述语序 indicative order主语从句是在复合句中充当主语的 句子，起到主语的作用。conjunction连接词Conjunctions （连接词）从属连词that 无词义 whether/if "是否"Z充当从句的任何成分连接代词what, who, whom, which, whose,whatever,whoever充当从句的主语，表语,宾语,定语.连接副词when, where, how, why 充当从句的语That Lady Gaga will come to our city next Monday is certain.=

5、It is certain that Lady Gaga will come toour city next Monday .I Subject*一 / clause )Formed Subject(形式主/)I 谙)I Real subject总结:当一个句子主语过长时，用it作形式主 语(formed subject),而把真正的主语或主 语从句后放句尾，避免“头重脚轻”。所以就构成了下面3种常用句型：1） It is + n,+主语从句如:It is a pity that.遗憾的是It is a surprise that令人惊奇的是It is a fact that 事实是It is

6、 a question that.问题是It is a pity that1 .（很遗憾）we lost the match.It is a fact that2 .（这是事实）he cheated in the exam.2） It is + adj. +主语从句It isclear/certainthat.很清楚/很肯定It is possible that. 很可能It is obvious that很明显It is important that 重要的是1. It is possible that（很可能）she will comeback tomorrow.2. It is obvi

7、ous that （彳艮明显）this measure is effective.3) It + be +过去分词+主语从句 如：It is said that. 据说It is reported that.据报道It is known to all that.众所周知It is believed that据信；人们相信L It is reported that （据报道）20 people were killed in the accident.2 It is believed that （人们相信）we should eat more vegetable and do more exerc

8、ise.I Pay attention to that, whether/if,what,1. that在主语从句只起引导作用，本身无实 际意义，在主语从句中不充当任何成分，但 不能省略。2. whether/if ”是否”在主语句中不做成分， 不能省略，放句首只能用whether,不能用if.3. what引导的主语从句除了起到引导从句的 作用外，还要承担具体的意义，what还会作 句子成分。Complete the sentences by using what, yvhether/ify or that.(What is needed for success) is your hard

9、work.2 .( Whether we will go tomorrow )hasn,t been decided yet.3 .( That he can write the composition in such a short time) surprises us all.Conclusion:单个主语从句作主语时，谓语动词一般用 单数形式。Correct mistakes:You need to correct the following sentences. There is only one mistake in each sentence 1. She is a famous

10、writer is known to alLAThatPay attentioiuthat虽无词义但引导主 语从句位于句首时不能省略。2. What the professor said is of great importance.Pay attention:此主语从句缺少成分.宾语, 故用作成分的what来引导，而不用that。 what承担具体的意义和作句子成分。3. Whether she' s coming or not doesn" t matter much.Pay attention: whether/if ”是否"在句中不 做成分，不可以省略，放在

11、主语从句的句 首只能用whether,不能用if.The group that gives the right answer within the shortest time shall gain one point. The winner is the group that has the highest points.Group Competition1. Translate the sentenceIt is known to us how Mark Twain became a great writer （马克.吐温怎样成为一位伟大的作家）.2. Make a sentence：rep

12、ort, it, get the highest points（分数）,is, that, in the NBA, Yao MingIt is reported that Yao Ming got the highest points in the NBA.Group Competition3. Translate the sentence：Whether she will attend the meeting （她是否将参加会议）is not certain.What they are talking about is the mobile phone.Group CompetitionWh

13、ether5.用whether还是what填空we shall attend the meetinghasn't been decided yet.Group Competition6 ,用动词的适当形式填空What he saidis(be) not true.Pay attention:当主语从句作主语时，谓语动 词一般用单数形式。Group Competition7.True or False?yHe will give up his job surprises all of us.FThat he will give upPay attention:由that引导的主语从句放在句 首，that不能省略。What the cat did made the cry.The winner of the group competition is ?Summary总结：Subject