高三英語備考知識點
我們每個人都能創造奇蹟，關鍵是我們想要的到底是什麼，以及爲了這個想要的，願意付出多大的代價。如果爲了你想要的那個東西你願意付出一切的代價，那麼你將創造下一個奇蹟。學習也是一樣需要付出的!以下是小編給大家整理的高三英語備考知識點，希望能幫助到你!
高三英語備考知識點1
look up the dictionary
漢語中的“查字典”，說成英語通常是 look up sth in a dictionary 或 consult [refer to] adictionary。如：
I refer to the dictionary frequently. 我經常查閱詞典。
You can look the word up in the dictionary. 你可以在詞典裏查這個詞。
He often consulted a dictionary when he read the book. 他讀這本書時經常查字典。
I looked the word up in the dictionary to refresh my memory of its exactmeaning. 我查了詞典，以便弄清這個詞的準確意思。
I often look up the words I don’t know in the dictionary or on theInternet. 我經常在字典裏或網上查找我不認識的單詞。
“Is that the correct spelling?” “I don’t know—look it up in a dictionary.”“那是正確的拼寫嗎?”“我不知道——查查詞典吧。”
I didn’t know what “loquacious” meant and had to look it up in adictionary. 我不知道loquacious這個是什麼意思，所以只好查了詞典。
有不少人認爲英語習慣上不能直接說 look up the dictionary, 其實這種表達在英語中也可以用，只是比較少見而已。例如：
I spend more time looking up the dictionary than reading the book.我讀這本書時查字典的時間還多些。——摘自 L. G. Alexander 編《新概念英語》(外研社)
Look up the dictionary and explain the meaning of the italicized words.查字典然後解釋斜體詞的意思。——摘自張漢熙編《高級英語》(商務印書館)
高三英語備考知識點2
虛擬語氣在一些特殊詞中的使用或含蓄條件句
後的賓語從句。
與現在願望不一致，用主語十過去時，例如：
I wi。hIwere you.
與過去願望不一致，用主語+had+過去分詞，例如：Iwish I had visited the White House whenI was inthe States與將來願望不一致，用主語+would (could)+原形。
's time句型：當lt's tine後用that從句時應該爲主i吾+should+動詞原形或主語十過去時，例如：It，s timethatyou went to school.或It's time that you should go to schooL
3- If only引起的感嘆句相當於“How I wish+賓語從句”。
(l)If only he could come.他要能來就好了。
(2)If only I had known the answer.我要早知道答案就好了。
d rather，asif(though)引導的從句也需使用虛擬語氣，表示過去的情況用過去完成時，表示現在與將來的情況用過去時，例如：
(l)I'd rather you posted the letter right away.
(2)She loves the children as if they were hers.
5.含蓄虛擬條件句含蓄條件句是指句中沒有明顯的虛擬條件句，而是利用其他手段來暗示存在虛擬條件。但是這類隱含式虛擬條件句往往都可以轉化爲if引導的條件句。常用來表示含蓄虛擬條件的手段有：
(1)介詞或介詞短語。如but for，but that，without,in case of, under more favorablecondition等。
(2)連詞。如so that, unless, in case, supposing,lest, provided(倘若……)，for fearthat(唯恐)，in orderthat, on condition that, if only(要是……就好了)等。
注意：lest, for fear that和incase引起的從句中謂語動詞多用should+動詞原形，但也可以不用虛擬語氣，而用動詞的陳述語氣形式。例如：The foreign teacherspokeslowly in case we misunderstood him這位外籍教師說得很慢以免我們誤解。
(3)通過上下文及內在含義，句中往往有but,otherwise, unfortunately等類似轉折詞。
without, but. but for, otherwise引起的短語或句子常暗含着含蓄條件。例如：
①Without you,1 would never know him
②But for your oooperation, we wouldn't have done it
③But that she was afraid, she would have said no. .
④i would be most glad to help you, butI am busy now.
⑤I would have come to the party yesterday, but ljwas working.
⑥I am busy now, otherwise l would do you the favor!
高三英語備考知識點3
一、就近一致原則
1.由or，not lso...，...，...，...，...等連接兩個或兩個以上的並列主語時，通常根據就近一致原則，謂語動詞要與離它最近的主語在數上保持一致。
Neither his parents nor I am able to persuade him to change his mind.
引導一個句子而主語又不止一個時，通常根據就近原則，謂語動詞要與離它最近的主語在數上保持一致。
Here is a ruler，a few pencils and two copybooks.
二、意義一致原則
1.謂語動詞必須用單數的情況
(1)表示學科的名詞以及works(工廠)，news(消息)等作主語時，雖然本身爲複數形式，但表示單數意義時，謂語動詞仍用單數。
Politics is his favorite subject.
(2)表示某些組織機構的名詞、書/報名、國名、地名等作主語時，雖然形式上是複數，但所表示的意義是單數，所以謂語動詞用單數。
Do you know when the United Nations was set up?
2.謂語動詞必須用複數的情況
表示總稱意義的名詞，如people，police，public，cattle等作主語時，謂語動詞用複數。
The police are searching for the murderer.
3.謂語動詞的形式依據主語表示的意義而定
(1)集體名詞，如family，class，group，team，club，company，government，population等作主語時，謂語動詞的形式根據其在語境中表示的意義而定。當其表示集體意義，強調整體概念時，謂語動詞用單數;當其表示集體中各個組成部分，強調個體概念時，謂語動詞用複數。
As far as I know，his family is not very large but the family are all musiclovers.
(2)“the+形容詞/分詞”表示“一類人”時，謂語動詞用複數。
The poor were looked down upon in the old days.
三、語法一致原則
1.由and連接的兩個名詞作主語
(1)“a/the+名詞單數+and+名詞單數”表示一個人(雙重身份)，謂語動詞用單數。
The teacher and poet often gives lectures around the city.
(2)“a/the+名詞單數+and+a/the+名詞單數”表示兩個人，謂語動詞用複數。
The teacher and the poet have just arrived.
(3)“every+名詞單數+and+every+名詞單數”表示每一個人，謂語動詞用單數。
Every boy and every girl has the right to receive education in ourcountry.
(4)通常由兩個部件組成的物品如：a knife and fork (一副刀叉)等作主語，謂語動詞用單數。
Bread and butter is not to his taste.
2.表示時間、數量、長度及價格的名詞，儘管有時是複數形式但常被看作是一個整體，謂語動詞用單數形式。
Is fifty pounds enough?
3.“分數/百分數+of+名詞”作主語時，謂語動詞的形式根據of後的名詞的形式來定，如果名詞是可數名詞複數，謂語動詞用複數形式;如果名詞是單數可數名詞或不可數名詞，謂語動詞用單數形式。
Two-thirds of the books are about science.
Only 30% of the work was done yesterday.
