1.All___is peace and progress.A what is needed B which is needed C that is needed D for our needs2."Is it__that he will arrive here late?" "No I don't think so."A probably B likely C possibly D perhaps3.___a fine day,we decided to go out for a picnic

1.All___is peace and progress.A what is needed B which is needed C that is needed D for our needs2."Is it__that he will arrive here late?" "No I don't think so."A probably B likely C possibly D perhaps3.___a fine day,we decided to go out for a picnic
1.All___is peace and progress.
A what is needed B which is needed C that is needed D for our needs
2."Is it__that he will arrive here late?" "No I don't think so."
A probably B likely C possibly D perhaps
3.___a fine day,we decided to go out for a picnic.
A Having been B being C What D It being

1.All___is peace and progress.A what is needed B which is needed C that is needed D for our needs2."Is it__that he will arrive here late?" "No I don't think so."A probably B likely C possibly D perhaps3.___a fine day,we decided to go out for a picnic
1.选C
这个句子的主语是all,选项部分应该是修饰all的定语从句,定语从句的关系代词只能用which和that,而all 后面是不可以跟which,因此只有C是正确的.
2.选B
be likely that...这个句型是正确的,而probably 和 possibly 尽管跟likely一样表示可能性,但用于这个句型,要用形容词形 be probable/possible that.,而不能用副词形.
perhaps 一般不用作表语,而是作为状语放在句首
3.选D
这是分词短语作独立主格结构,所谓独立主格结构,是分词短语的主语和主句的主语不一样,所以要在分词短语前加上另一个主语.
这个句子,主句的主语是we,而being a fine day的主语显然不是we,因此要加上它的主语it 形成独立主格结构.
A和B都是分词短语,不形成独立主格,这种用法,是表示分词短语的主语和主句主语一致,显然是错的.
C是感叹句,如果a fine day后面是感叹号,那就要用what,而给出句子中是逗号,所以这里不能另成一个句子.因此C也是错的.

1. D 定语从句 All未从句的先行词，只能用that来引导，当然，这个句子也可以写成：What is needed is peace and progress. 这样的话，就是一个主语从句了。
2. B 固定搭配：it is likely that... 很可能... probably 和possible 的主语一般是人，如：He is probbably late for ...

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1. D 定语从句 All未从句的先行词，只能用that来引导，当然，这个句子也可以写成：What is needed is peace and progress. 这样的话，就是一个主语从句了。
2. B 固定搭配：it is likely that... 很可能... probably 和possible 的主语一般是人，如：He is probbably late for school.
3. D 独立主格结构

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C/B/D

1. 选C
2. 选B
3. 选D

1、C
All ____is needed 是整句的主语，相当于一个名词，中心词是all，后面____is needed 是all的定语从句，定语从句缺少主语，那么关系代词必须是指物的，还必须能做主语，所以只能从A和C中选择，因为B不是关系代词！
当先行词指物，但是是不定代词时，只能用that,不用which。
如果一定想用what, 那么应该写成：
What is...

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1、C
All ____is needed 是整句的主语，相当于一个名词，中心词是all，后面____is needed 是all的定语从句，定语从句缺少主语，那么关系代词必须是指物的，还必须能做主语，所以只能从A和C中选择，因为B不是关系代词！
当先行词指物，但是是不定代词时，只能用that,不用which。
如果一定想用what, 那么应该写成：
What is needed is access to the internet with a high-speed cable connection
其中What is needed是主语从句，What是该主语从句中的主语。
2、B
be likely that...这个句型是正确的，而probably 和 possibly 尽管跟likely一样表示可能性，但用于这个句型，要用形容词形 be probable/possible that....，而不能用副词形。
perhaps 一般不用作表语，而是作为状语放在句首
3、D
首先，句子有主语谓语：we decided；那么前面部分就一定是非谓语动词形式了
其次，所谓独立主格，是由名词或代词作为逻辑主语，加上分词、形容词、副词、动词不定式或介词短语作为逻辑谓语构成。这种结构在形式上与主句没有关系，通常称为“独立主格结构”。分析这个句子，“天气好”的主语是“天气”，而整个句子的主语是“我们”，也就是说，在非谓语动词的逻辑主语，和整个句子的主语不一致的情况下，我们就必须用“独立主格”了。
再举个例子：There being nothing else to do, they went away.
由于没事儿可做，他们走了。
可以这么判断，如果非谓语动词的逻辑主语，与句子的主语不一致，就一定要用“独立主格结构”，也就是在非谓语动词前加个逻辑主语。

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