2023届高考英语二轮复习名词性从句（与定语从句）课件(10张PPT)

(共10张PPT)
Grammar
Focus on Language: Noun clauses
Reviewing
定语：一般为形容词，修饰名词。如：I often wear a yellow sweater.
定语从句：句子做定语，即用一个句子去修饰名词，所以从句前面必须有名词，也就是先行词。
I often wear a sweater which is yellow.
句子主干：主谓（宾），主系表
定语不是必要成分，而是修饰成分，所以去掉定语从句之后，句子仍完整。
I often wear a sweater.
Review: Attributive clause
名词性从句：句子充当名词。
句子主干：主谓（宾），主系表
主语从句
宾语从句
表语从句
名词性从句的引导词：
that;
Whether, if;
what, who, which, where, when, why, how long/much/many…;
As, as if, as though etc.
Noun clause
1. 判断名词性从句：句子充当主语/宾语/表语。
即：从句在句首/动词（包括系动词）后
2. 名词性从句中，当从句不缺任何成分时，用that，且在宾语从句中可以省略。that翻译不出来实际意义。
3. 当从句缺主语/宾语，指物用what。可翻译成什么/…的东西
1. 判断名词性从句：句子充当主语/宾语/表语。
即：从句在句首/动词（包括系动词）后
2. 名词性从句中，当从句不缺任何成分时，用that，且在宾语从句中可以省略。that翻译不出来实际意义。
3. 当从句缺主语/宾语，指物用what。可翻译成什么/…的东西
1. 判断名词性从句：句子充当主语/宾语/表语。
即：从句在句首/动词（包括系动词）后
2. 名词性从句中，当从句不缺任何成分时，用that，且在宾语从句中可以省略。that翻译不出来实际意义。
3. 当从句缺主语/宾语，指物用what。可翻译成什么/…的东西
1. that引导主语从句：无实际意义，但不可省略。
That we will be late is certain.
经常用形式主语it代替主语从句，即将it放在句首，将主语从句放在句末，以免句子头重脚轻。
It is certain that we will be late.
It is hard to believe
Van Gogh only sold one painting during his lifetime.
That Van Gogh only sold one painting during his lifetime is hard to believe.
It is hard to believe that Van Gogh only sold one painting during his lifetime.
其他考点
2. 表示是否含义的时候，用whether/if
I don’t know whether/if Tom will come.
但是！if不能引导位于句首的主语从句，此时只可用whether
Whether Tom will come remains unknown.
Looking at the painting, we don’t know
It is night or day.
Looking at the painting, we don’t know whether/if it is night or day.
It is unclear
Van Gogh wanted to paint yellow spots or that was what he really saw.
Whether Van Gogh wanted to paint yellow spots or that was what he really saw is unclear.
It is unclear whether/if Van Gogh wanted to paint yellow spots or that was what he really saw.
其他考点：用含义判断
3. 表示哪一个含义的时候，用which
Do you know which football team Bill supports
4. 其他都根据意思解决。
I don’t know who I like best.
Where they’ll move their office to is not clear.
When he’ll leave for New York hasn’t been decided.
That is how they succeeded.
That is why he was late for school.
Things were not as we had expected.
其他考点：用含义判断
1. ________ we’ll go camping tomorrow depends on(取决于) the weather.
2. ________ he said at the meeting astonished(使震惊) everybody present.
3. -- Do you remember ________ he came
-- Yes, I do. He came by car.
4. ________ we should work out a plan to deal with it is important.
5. The film _______ tells about animals is interesting.
总结：先区分定语从句（前面有名词）与名词性从句（句子充当主语/宾语/表语）
指物的时候，名词性从句用what，此时what在从句里充当主语/宾语。
名词性从句中表示哪一个的时候才用which。
练习
Whether
What
how
That
which/that