3道单选高中英语题

1. 在“序数词、最高级形容词、the only、the very + 名词”后面，定语从句确实要用 that 而不用 which.
2. ... that the moon travels round the earth once every month 是主语从句，位于句尾，而句首用 it 作形式主语。
3. 你或许已知道 which 引导非限制性定语从句时可以指代整个句子，如：The number of the students in high schools is increasing, which is mentioned above.
而 as 也有这一用法，且与 which 不同的是，which 从句只能位于主句之后，as 从句可在主句之前或之后，甚至插在主句中。
The number of the students in high schools is increasing, as is mentioned above.
As is mentioned above, the number of the students in high schools is increasing. （即本题）
The number of the students in high schools is, as is mentioned above, increasing.
as 的这种情形常见的还有：
As we all know, the moon travels round the earth once every month.
As is known to all, the moon travels round the earth once every month.

1 that 用法 the very接that表强调
2 it 用法 it作形式主语
3 as 用法 as引导的非限制性定语从句 as修饰后面整个句子

补充回答：
It 作形式主语和it引导强调句的比较
It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人时也可用who/whom。例如：
a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。
b) It doesn’t interest me whether you succeed or not. 我对你成功与否不感兴趣。
c) It is in the morning that the murder took place. 谋杀案是在早上发生的。（强调句型）
d) It is John that broke the window. 是John打碎的窗户。（强调句型）

这样跟你说吧 it作形式主语的时候 就单纯是主语 所以把真正的主语代替it看时还得要谓语
以a）句为例：It is a pity that you didn’t go to see the film.
把真正主语代替it看就是You didn’t go to see the film （is）a pity.
而强调句中整个it is ……that 三个单词都可以去掉(包括is在内) 而句子是完整的
以c)句为例It is in the morning that the murder took place.
不用强调句为the murder took place in the morning.

再不明白给我发消息

1 that 用法 the very接that表强调
2 it 用法 it作形式主语
3 as 用法 as引导的非限制性定语从句 as修饰后面整个句子

同意12但不懂3

你进你的空间`点装扮``点领蛋

1.b 2.a 3.b