课件30张PPT。Unit 2 名词性从句
noun clause 主语从句
subject clause 宾语从句
object clause表语从句
predicative clause 同位语从句
appositive clauseReview_______________ we’ll go camping tomorrow depends on the weather.
What the doctors really doubt is _______________ my mother will recover from the serious disease soon.Whether whether 在空白处填入适当的内容。Could you tell me ______________ it snows in winter in Australia?
_______________ you don't like him is none of my business.if / whether That 我们要召开一次会议,这已决定了。
That we’ll hold a meeting is decided.
他是 否已离开这儿,这还不清楚。
Whether he has left here is not clear. Noun clauses introduced by question wordsI want to know what your first impression of me is.
2. What you said makes me more / less confident about this lesson.
object clause 宾语从句subject clause 主语从句3. I have no idea how I can make a grammar lesson interesting.
4. My question is why you don’t like / like open presentation.appositive clause 同位语从句predicative clause 表语从句由疑问词引导的名词性从句我们可以使用疑问词what, which, who, whom, whose, when, where, why和how 引导名词性从句。
当名词性从句是由特殊疑问句转变而来时,我们用疑问词引导这个从句。由疑问词引导的名词性从句在句子中可以充当主语、宾语或表语。注 意在由疑问词引导的名词性从句中,疑问句语序应转变为陈述句语序。
在任何情况下, 引导名词性从句的疑问词都不能省略。请看例句:
What are people from the north saying? People from the south find it difficult to understand.
People from the south find it difficult to understand what people from the north are saying.‘Borrowed Words’-----good or bad?Languages keep borrowing words from other languages. This is one of the reasons _____ languages keep changing almost every day. ______ we should do about the increasing number of ‘borrowed words’ in our vocabulary is something that deserves careful thought. whyWhatIn England nowadays, there is no one to decide _______ new words should be accepted into the language. A standard was first set for the English language by King Henry VII. That is ________ we have the phrase ‘the king’s English’. which whyKing Henry VII was a poet who showed great concern for language. He set a standard for ______ people were to speak English, but today ______ can make a decision like that is anyone’s guess. howwhoHowever, there is an organization to make decisions like this in France. _____ French will be used is decided by a government department. At one time the department banned some ‘borrowed words’ from English, including ‘weekend’ and ‘e-mail’. French people supported this because they wanted to keep their language pure and unique.How Today, the spread of ‘borrowed words’ is mostly due to the easily accessed Internet and television programmes from across the world. Some people are optimistic and believe that this process is good, while others worry that it may result in language pollution. _______ opinion you agree with is up to you.Which Some useful phrases:
show concern for … 对… 表示关切
The whole society should show concern for handicapped children.
make decisions 做出决定
He’s really bad at making decisions.Preparatory subject it形式主语it 在英语中,为了表示强调,通常将最重要的信息放在句尾。这叫做尾重效果。使用形式主语it 可以达到这一效果。在句子中,it是形式主语,仅在语法上起到主语的作用,而句子的真正的主语则在句尾。
It is easy to answer whether English will continue changing in the future.当我们既可以使用it作形式主语,又可以使用句子的真正主语,并且这两种说法均正确时,一般遵循以下两条规则。通常情况下,当句子的主语是从句或动词不定式时,我们一般用it作形式主语。当句子主语是动词的-ing形式时,我们则一般将真正的主语置于句首,而不使用it作形式主语。It is important to know how to use a computer.
It is no use asking him.
It is no good going there.· 在It is known ...; It is said ...; It is hoped ...; It is believed ...等句型中。如:
It is said that our school football team won.
· 主语从句也可以用it作形式主语,以wh-连接的句子作真实主语, 放到句子后面.如:
It is still a question when we shall have our sports meet.
It doesn't matter what you say.· It is / was + 被强调部分 + that / who ...
该句型是强调句型。被强调部分可以是主语、宾语、表语或状语。强调的主语如果是人,that 可以由 who 换用。如果把这种句型结构划掉后,应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。
It is on Tuesday that she will come.· 当seem, appear, happen, turn out 和prove 在句子中作谓语动词时,我们也可以使用形式主语it。
It turned out that she was a friend of my sister.
It seems to be a turning point in his life.1. Does ____________ matter if he can't finish the job on time?
2. ____________ is a fact that English is being accepted as an international language.
3. ____________ was Jane that I saw in the library this morning.it It It 在空白处填入适当的内容。The key to Exercise A(2) It requires a good understanding of their behavior to know what they mean.
(3) It always puzzles me why my dog barks in certain ways.
(4) It won’t be difficult to buy a machine like this.The key to Exercise B2. It happens that several racial groups live in Singapore.
3. It is fun to hear different people speaking different languages all at the same time.
4. It is certain that I’ll see you next week.典型例题It was never clear ____________ the man hadn’t reported the accident sooner.whyI’m afraid he’s more of a talker than a doer, which is ___________ he never finishes anything.whyDo not let any failures discourage you, for you can never tell ______________ close you may be to victory.
_____________ you said at the meeting describes a bright future for the company.howWhatIt was the culture, rather than the language, _____________ made it hard for him to adapt to the new environment abroad.
It's not doing the things we like, but liking the things we have to do ______________ makes life happy.that that