在學習新知識的同時還要復習以前的舊知識，肯定會累，所以要注意勞逸結合。只有充沛的精力才能迎接新的挑戰(zhàn)，才會有事半功倍的學習。高二頻道為你整理了《高二年級英語下冊知識點整理》希望對你的學習有所幫助！
1.高二年級英語下冊知識點整理
定語從句
關系代詞引導的定語從句
1、that指人或物在從句中作主語，賓語或表語
which指物在從句中作主語，賓語或表語(作賓語時可以省略)
who指人在從句中作主語，賓語或表語
whom指人在從句中作賓語
whose指人或物在從句中作定語
as指人或物在從句中作主語，賓語或表語
but指人或物在從句中作主語，賓語或表語
注意：指物時，whose+名詞=the+名詞+of which或of which+the+名詞
2、as的用法
(1)常用于下列結構：such…as; so…as;the same…as; as…as
注意：the same…as表示同一類，不同一個
the same…that表示同一個
(2)as與which的區(qū)別
a、位置不同
as可放在主句后，主句前或主句中間;which只能放在主句后。
b、as起連接作用，表達說話人的觀點、看法，并指出主句內(nèi)容的根據(jù)或出處，意為“正如，正像”。
Which相當于并列句，可以用and this來代替，意為“這一點，這件事”。
注意：as常用于下列結構：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,一般不能用which代替as。
c、在從句中作主語時，which既可作系動詞be的主語也可作實義動詞的主語，而as只可作系動詞be的主語。
2.高二年級英語下冊知識點整理
不定式做主語：
1、不定式做主語一般表示具體的某次動作。===動名詞doing表示習慣的，經(jīng)常的動作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe. (對等)
注:
1).不定式作主語時,謂語用單數(shù)
2).當主語較長，謂語較短時，常用it做形式主語，而將不定式放到謂語的后面。
it做形式主語，不定式放在謂語動詞之后常用于下列結構中：
(1)It is/was +adj.+of sb. to do…
(2) It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
(3) it is +a +名詞+ 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 takes (sb.) some time / courage / patience …to do…
It requires courage / patience / hard work… to do…
注意: probable和possible均可作表語，但possible可以用不定式作真實主語，而probable不能用不定式作真實主語。
It is probable for him to come to the meeting.(錯)
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
3.高二年級英語下冊知識點整理
表語從句
1. 定義：用作表語的從句叫做表語從句。
2. 構成：關聯(lián)詞+簡單句
3. 引導表語從句的關聯(lián)詞的種類：
(1) 從屬連詞that。如：
The trouble is that I have lost his address. 麻煩是我把他的地址丟了。
(2) 從屬連詞whether, as, as if。如：
He looked just as he had looked ten years before. 他看起來還與十年前一樣。
The question is whether they will be able to help us. 問題是他們是否能幫我們。
注：從屬連詞if一般不用來引導表語從句，但as if卻可引導表語從句，如：
All this was over twenty years ago, but it's as if it was only yesterday.
這都是20多年前的事了，但宛如昨天一樣。
能跟表語從句的謂語動詞一般為系動詞be, seem, look等。如：
It looked as if it was going to rain. 看起來天要下雨了。
(3)連接代詞who, whom, whose, what, which, whoever, whatever, whichever
連接副詞 where, when, how, why。
如：The problem is who we can get to replace her. 問題是我們能找到誰去替換她呢。
The question is how he did it. 問題是他是如何做此事的。
4.高二年級英語下冊知識點整理
1. Instead of spending your vacation on a bus, ... you may want to try hiking. Instead和instead of的用法
2. Say "Hi" / "Hello" / "Thanks" to sb. (for me)問候的句型
3. Is anybody seeing you off?進行時表將來
4. She struggled and struggled, and could not get on her feet. (= keep struggling)
5. You should not go rafting unless you know... unless引導條件狀語從句，相當于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.目的狀語從句
7. She was so surprised that she couldn't move.結果狀語從句
8. Tree after tree went down, cut down by water.過去分詞作狀語
9. The next moment, the first wave swept her down, swallowing the garden.現(xiàn)在分詞作狀語
10. However, before she could think twice, the water was upon her. It didn't take long before the building was destroyed. before的用法
5.高二年級英語下冊知識點整理
表示工具或手段的介詞：by,with,on
1.by用某種方式，多用于交通。如by bus乘公共汽車，by e-mail.通過電子郵件。
注意：表示搭乘交通工具時，用by時不用冠詞，用in時要用冠詞。請比較：
I went there by bus/in a bus.我是坐公共汽車去的那兒。
2.with表示“用某種工具”。如：
He broke the window with a stone.他用石頭把玻璃砸壞了。
注意：with表示用某種工具時，必須用冠詞或物主代詞。
3.on表示“以……方式”，多用于固定詞組。
They talked on the telephone.他們通過電話進行交談。
She learns English on the radio/on TV.她通過收音機/電視學英語。