在学习新常识的同时还要复习以前的旧常识，一定会累，所以应该注意劳逸结合。只有充沛的精力才能迎接新的挑战，才会有事半功倍的学习。智学网高中二年级频道为你整理了《高二英语下册要点整理》期望对你的学习有所帮助！
1.高二英语下册要点整理
定语从句
关系代词引导的定语从句
1、that指人或物在从句中作主语，宾语或表语
which指物在从句中作主语，宾语或表语
who指人在从句中作主语，宾语或表语
whom指人在从句中作宾语
whose指人或物在从句中作定语
as指人或物在从句中作主语，宾语或表语
but指人或物在从句中作主语，宾语或表语
注意：指物时，whose+名词=the+名词+of which或of which+the+名词
2、as的使用方法
常用于下列结构：such…as; so…as;the same…as; as…as
注意：the same…as表示同一类，不同一个
the same…that表示同一个
as与which有什么区别
a、地方不同
as可放在主句后，主句前或主句中间;which只能放在主句后。
b、as起连接用途，表达说话人的看法、怎么看，并指出主句内容的依据或出处，意为“正如，正像”。
Which等于并列句，可以用and this来代替，意为“这一点，这件事”。
注意：as常用于下列结构：as we know/ as is known to all, as we all can see, as has been said before/above,
as might be excepted, as is often the case,一般不可以用which代替as。
c、在从句中作主语时，which既可作系动词be的主语也可作实义动词的主语，而as只可作系动词be的主语。
2.高二英语下册要点整理
不定式做主语：
1、不定式做主语一般表示具体的某次动作。===动名词doing表示习惯的，常常的动作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe.
注:
1).不定式作主语时,谓语用单数
2).当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。
it做形式主语，不定式放在谓语动词之后常用于下列结构中：
It is/was +adj.+of sb. to do…
It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
it is +a +名词+ to do...
It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do
It takessome time / courage / patience …to do…
It requires courage / patience / hard work… to do…
注意: probable和possible均可作表语，但possible可以用不定式作真实主语，而probable不可以用不定式作真实主语。
It is probable for him to come to the meeting.
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
3.高二英语下册要点整理
表语从句
1. 概念：用作表语的从句叫做表语从句。
2. 构成：关联词+简单句
3. 引导表语从句的关联词的类型：
从属连词that。如：
The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
从属连词whether, as, as if。如：
He looked just as he had looked ten years before. 他看着还与十年前一样。
The question is whether they will be able to help us. 问题是他们是不是能帮大家。
注：从属连词if一般不需要来引导表语从句，但as if却可引导表语从句，如：
All this was over twenty years ago, but its as if it was only yesterday.
这都是20多年前的事了，但宛如昨天一样。
能跟表语从句的谓语动词一般为系动词be, seem, look等。如：
It looked as if it was going to rain. 看着天要下雨了。
连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词 where, when, how, why。
如：The problem is who we can get to replace her. 问题是大家能找到哪个去替换她呢。
The question is how he did it. 问题是他是怎么样做此事的。
4.高二英语下册要点整理
1. Instead of spending your vacation on a bus, ... you may want to try hiking. Instead和instead of的使用方法
2. Say Hi / Hello / Thanks to sb. 问候的句型
3. Is anybody seeing you off?进行时表以后
4. She struggled and struggled, and could not get on her feet.
5. You should not go rafting unless you know... unless引导条件状语从句，等于if... not
6. By staying at..., tourists can help the villagers make money so that they can take care of the fiver and the birds.目的状语从句
7. She was so surprised that she couldnt move.结果状语从句
8. Tree after tree went down, cut down by water.过去分词作状语
9. The next moment, the first wave swept her down, swallowing the garden.目前分词作状语
10. However, before she could think twice, the water was upon her. It didnt take long before the building was destroyed. before的使用方法
5.高二英语下册要点整理
表示工具或方法的介词：by,with,on
1.by用某种方法，多用于交通。如by bus乘公共汽车，by e-mail.通过邮件。
注意：表示搭乘交通工具时，用by时不需要冠词，用in时要用冠词。请比较：
I went there by bus/in a bus.我是坐公共汽车去的那儿。
2.with表示“用某种工具”。如：
He broke the window with a stone.他用石头把玻璃砸坏了。
注意：with表示用某种工具时，需要用冠词或物主代词。
3.on表示“以……方法”，多用于固定词组。
They talked on the telephone.他们通过电话进行交谈。
She learns English on the radio/on TV.她通过收音机/电视学习英语。
