通用版2022届高考英语总复习第二部分语法专题第十讲名词性从句课件.ppt

第十讲　名词性从句
名词性从句是历年高考的重点和难点，也是热点。名词性
从句相当于名词，可做主句的主语、宾语、表语和同位语。因
此，名词性从句可分为主语从句、表语从句、宾语从句和同位
语从句(见下表)。
名词性从句
连接词
主语从句
用 that, who, whether, if (不用于句首), what (＝the
thing that)等连接词引导
宾语从句
用 that ( 可 省 略 ), if, whether (or not), what ( ＝ the
thing which)等连接词引导
表语从句
用 that ( 一 般 不 省 略 ), whether, what ( ＝ the thing
which)等连接词引导
同位语从句
用 that ( 常指代 news, thought, idea 等词), whether
等连接词引导
结构
常见句型
It is＋名词＋主语
从句
It is a fact/pity that...事实是/遗憾的是……/It
is an honor that...非常荣幸……/It is common
knowledge that...……是常识/It is a question
＋疑问词...问题是……
It is＋形容词＋主
语从句
It is clear that………很清楚 /It is surprising
that...令人惊讶的是……
一、主语从句
主语从句是在复合句中充当主语的从句，通常放在主句谓
语动词之前或由形式主语 it 代替，而本身放在句子末尾。
it 做形式主语的结构
结构
常见句型
It＋不及物动词＋主语从
句
It seems that... 似 乎 ……/It happened
that... 碰 巧 ……/It appears that... 看
来……
It is/has been＋过去分词
＋主语从句
It is reported/said/believed that... 据报
道/据说/人们认为……/It has been
proved that...已证实……
(续表)
说明
例句
if 引导的主语从句不
可位于复合句句首
It's unknown whether/if he will come.
(正)
Whether he will come or not is unknown.
(正)
If he will come or not is unknown.(误)
It is said/reported that...
结构中的主语从句不可
提前
It is said that Jiang will visit our school
next week.(正)
Jiang will visit our school next week is
said. (误)

说明
例句
It happens that.../It occurs
to ... 结 构 中 的 主
语从句不可提前
It occurred to him that he failed in the
examination.(正)
That he failed in the examination
occurred to him.(误)
It doesn't matter how/
whether... 结构中的主语
从句不可提前
It doesn't matter whether he is right or
not.(正)
Whether he is right or not doesn't
matter. (误)
含主语从句的复合句是
疑问句时，主语从句不
可提前
Is it likely that it will rain in the
evening? (正)
Is that it will rain in the evening likely?
(误)
(续表)
说明
例句
做动词
的宾语
由 that 引导的宾语从句
(that 通常可以省略)
My father always says that no
pains, no ，不劳无获。
由 what, whether/if,
when, where, who 等引导
的宾语从句
He went to see who was
outside.
动词＋间接宾语＋宾语
从句