不但-sieve
Vision 语法归纳 — 名词性从句
名词性从句归纳
一、名词性从句概说、结构与功能
名词性从
句是起名词作用的从句,其功能相当于名词词组,在复合句中可作主语、宾语、表语和
同位语。与之对应
的名词性从句分别为主语从句、宾语从句、表语从句和同位语从句。
名词性从句需要由不同的关联词来引导,和主句相连。
主语从句
宾语从句
动宾 介宾
可以省略 不省略
表语从句
同位语从句
that
whetherif
不省略 不省略
只用 whether
不省略
只用 whether
放于句首whether
均可使用
用
但有区别
只用
whether
特殊疑问词 陈述句语序
关系从句
陈述句语序
二、主语从句
1、主语从句的类别
●以从属连词that
引导的主语从句。(从句位于句
首,that通常不省略)
→ That she
will come to the conference has excited every one
of us.
●以从属连词 whether
引导的主语从句。(从句置于句首时一般不用if来代替whether)
→ Whether
we'll go outing depends on the weather.
●以连接代词(what, whatever, who, whoever, which,
whichever等词)引导的主语从句。
→ Whoever will be in
charge of the project hasn't been decided yet.
【注】what 与 that在引导主语从句时,what
不但起连接作用,而且还有具体意义,意为“所…
的”,相当于
the things
that结构;而that则无词义。即如果从句中不缺少主语或宾语时,选择that,否则用 what。
●以连接副词(when,where, how, why 等词)引导的主语从句.
→ When the new road is open to traffic has not
been made clear.
2、用 it 作形式主语的主语从句
注:以下几种特殊情况必须用it作形式主语:
⑴ It is +
adj. + that 从句
常见的形容词有:necessary,right,lik
ely,wrong,important,certain,clear,obvious,strange
等。
It is likely that there will
be a snowstorm tomorrow.
→⑵ It is + noun +
that 从句
常接这种句型的名词有: a pity, a shame, good
news, a fact, an honor, a wonder, no wonder 等。
→ It is a pity that you
didn't attend the lecture [讲座] yesterday.
⑶
It is + 过去分词
1
名词性从句— Vision
语法归纳
said, heard, reported, decided,
suggested, advised, ordered, thought, considered,
pointed out, 常见
的分词有:
等词 well known,
hoped, turned out
→ It is said that
the professor has already succeeded in carrying
out this experiment. 从句 + that⑷
It + 特殊动词 等。
occur (碰巧),appear, 常用于这种结构的动词有:seem,happen It
seems
to me that you object to the plan.
→
It happened that I didn't take any
money with me.
结构中的主语从句It doesn't matter
howwhether…⑸
t matter whether he is wrong or
not.
It doesn' →
三、宾语从句
1、动词的宾语从句⑴
→ We all expect that they will
win this match.
大多数动词都可以带有宾语从句 hope, tell, say,
know, think, consider, imagine, hear, expect,
suppose, guess 等。 常见的动词有: 结构也可带宾语从句。 +副词”⑵
有些“动词 → I have
found out that all the tickets
for the concert have been sold out. it的宾语从句:⑶
可以运用形式宾
语
that作形式宾语而讲find, feel, think,
consider, make, believe 等后有宾语补足语时,需要用it ①
动词
宾语从句后置。 → I think it necessary that
we take plenty of hot water every day.
I
have made it a rule that I keep diaries.
。等词在带宾语从句时习惯上需要在宾语从句前加it动词 ② hate, take,
have, see to
)it替代。(若宾语从句是“WH”系列引导,其后有to
be短语作宾补,则不可以用 ▲
→ I take it that you
will agree with us.
We all consider what
you said to be unbelievable.
2、介词的宾语从句
“WH”系列连接词来引导的宾语从句。⑴一般情况下,介词后面
只能用ut whether we
admit students into our club.
→ We are
talking abo
从句发在最后。it替代,然后将thatthat ▲
用引导从句作介词宾语时,需要用形式宾语
→ You may depend on it
that I shall always help you.
引导的宾语从句四个介词后面可接that⑵ 偶尔的情况下, except, but,
besides, in
→ I know nothing about my new
neighbor expect that he used to work in a company.
I prefer his plan to yours
in that I think it is more practical. (in that
表示原因)
He
would have failed but that you helped him. (but
that 要不是,若非)
3、形容词的宾语从句
⑴sure, certain, glad, pleased, happy, afraid,
surprised, satisfied,
sorry等表示“情感”色彩的形
容词后也可以带宾语从句。
→ He is
sure that they will make it in spite of the
terrible weather.
⑵当主句中的谓语动词是 think, say,
guess, suppose, suggest, believe, feel,
consider时,宾语从
句的引导词
表示疑问时,需要放在句首。
2
Vision 语法归纳 — 名词性从句
→ Who do you think the public might choose
as their favorite singer this year?
4、
if和whether在宾语从句中用法的区别
▲ Whether和if在作“是否”讲时:
Ⅰ在下列几种情况下只能用whether。
⑴当被引导的宾语从句置于句首时。
→ Whether they will
join in the winter camp I don't care.
⑵
引导的宾语从句作介词的宾语时。
→ We are talking about
whether he will come next week.
⑶ 从句中有“or
not”时。
→ I don't care whether the work
will take long or not.
⑷ 引导词后接动词不定式时。
→ I am just wondering whether to
stay for another hour or just start off right
away.
⑸ 当从句部分用if 引导时,容易出现歧义时。
→
Let me know whether you can come.
*(此句话中若出现if,则不能判定if表示的含义为“是否”还是“如果”,容易有歧义。)
Ⅱ在动词ask, know, wonder, 词后,只能用if。
5、不可省略that的宾语从句
⑴当that作learn,
suggest, explain, agree, wonder, prove, mean,
state, feel, hold等动词的宾语时,
常不省略。
→ I
have learnt that most of the students who are
interested in Chinese take interest in English.
⑵当宾语从句比较长时,that不省略。
→ We all think
that what the public is badly in need of is
nothing but the development of
economy.
(我们大家都认为所急需的不是别的正是经济发展.)
⑶当主句状语置于宾语从句之前时。
→ I realized at once that I had done wrong
immediately she told me all about this.
⑷当宾语从句的状语或状语从句置于其句首时。
→ He told us that, if we could all come to help
out, the whole situation would be looking up.
⑸当主句谓语动词(或非谓语动词)与宾语从句之间有插入语时。
→
When Marx got to England, he found, however, that
his English was so limited that he
couldn't go
on with
his common affairs.
⑹当一个动词带
有两个或两个以上并列的宾语从句时,此时第一个that可以省略,第二个that
不可以。
→ Then he began to talk to us about the
French language, saying (that) it was the most
beautiful
tongue in
the world, and that
we must keep it among is and never forget it.
⑺当宾语从句的主语是this,that,或this,that为主语的定语时。
→ Some students think that this kind of
book can help them improve their English grammar.
He said that the word that I wrote on
the blackboard was wrong。
⑻当宾语从句为双宾语的直接宾语时。
→ He told me
that he would put some signs on the envelope.
⑼当宾语从句的主语为非谓语动词或主语从句时。
→ However,
many people simply couldn't believe that what he
had written was true.
⑽当宾语从句中有it为其形式宾语时。
→ We all considered it important that
children should take plenty of milk as they grow.
3
名词性从句— Vision 语法归纳
)
部分 、1⑶、① ( 此类动词详见三、
6、宾语从句的否定转移及其语气?
等时,从句的否定一般要转主句的谓语是think,
believe, imagine, suppose, consider, expect,
fancy, guess 到主句上来,其反意疑问句的主语一般和
宾语从句的主语保持一致。ll
stick out to the last minute. t think they' → I
don'
is it? 's his fault, I don't suppose
that
?宾语从句的特殊语气:
I wish I were
a bird.
之后的宾语从句要用虚拟语气。→ ⑴动词wish
should + do ⑵动词suggest,
advise, order,
insist, demand, command, request,
require的宾语从句用“”形式。 (接一致时态));
坚持认为……(接【should】
do坚持要求insist + that …… suggest +that
建议……(接【should】
do) ; 暗示…… (接一致时态)
四、表语从句
1、表语从句的特殊连接词
⑴除了基本的连接词可以连接表语从句以外,because, as
ifthough, as, like等连接词也可引导
表语从句。
→ He
has heart disease. That is because he has been
smoking too much.
⑵除了be
动词以外,可以用于表语从句的连系动词有:seem, look, appear, sound,
taste, feel,
remain等。
→ It looks as if
it is going to rain.
2、表语从句中需要注意的几个问题
⑴reason 为主语时的表语从句
主语为reason时,表语从句中的连接词要用that,而不用why.
→ The
reason for such a serious accident is that the
driver was too careless and drank too much.
⑵如果主句的主语为idea, advice, suggestion, order,
request, requirement等名词时,表语从句的
谓语应用虚拟语气,则谓语动词一律
用“(should)+动词原形”形式。
→ My suggestion is that
we (should) have a discussion about this matter
instead of just laying in
aside.
五、同位语从句
1、同位语从句常用的先行词
常用的先行词有:belief,doubt, explanation, hope, idea,
news, opinion, possibility, statement,
thought, wish,
truth, fact, question,
promise, problem, reply, report, suggestion,
advice, order, fear,
warning, news, story,
propose,etc.
2、同位语从句和定语从句的判断方法
同位语用以说明名词表示的具体内容,定语从句则是用来说明名词的性质、特征、来源等。
凡是同位语从句,皆可改为“The factnewsideaordertruththought
iswas that…” 结构形
式。
→ The news that our
team won the game excited us all.
本句可改为: The news was that our team won the game.
因此是同位语从句
The news that the radio
broadcast this morning is not true at all.
4
Vision 语法归纳 — 名词性从句
不可以改为: The news that the radio broadcast this
morning is not true at all. 因此是定语
从句。
5
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