高三英語語法知識點總結(jié)
英語是我們學習的主要科目之一,英語作為國際性語言,學好英語自然有很多好處。學習英語要從最基礎(chǔ)的知識開始學,而且需要端正學習態(tài)度,因為學習外語需要堅持。下面就是小編給大家?guī)淼?a href='http://www.yishupeixun.net/xuexiff/gaosanyingyu/' target='_blank'>高三英語語法知識點,希望能幫助到大家!
高三英語語法知識點
重點句型
It was + 時間段+before…."過了多久才(怎么樣)……"
It was not long before…."不久,就……"
It will (not) be +時間段+before…."要過多久(不久)……才……"(before從句謂語動詞要用一般時態(tài))
[例句]
It was not long before he sensed the danger of the position.不久他就意識到他處境的危險。
It was five days before he came back. 五天后他才回來。
It will be half a year before you graduate from the school. 再過半年你才能畢業(yè)。
It will not be long before they understand each other. 他們大概不久就會互相了解。
in case of…(+n.) "以防;萬一";
in case that…"以防,萬一……"(謂語動詞用一般現(xiàn)在時態(tài)或should+動詞原形)
[例句]
In case of fire, what should we do?
Please remind me about it in case I forget/should forget. 萬一我忘了,請?zhí)嵝盐摇?/p>
In case (that) John comes/should come, please tell him to wait.
Please take your umbrella in case (that it rains/should rain).帶上雨傘,以防下雨。
高三英語語法知識點匯總
一、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:Tofinishthebuildinginamonthisdifficult.
Todosuchthingsisfoolish.
Toseeistobelieve.(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(jié)構(gòu)中:
(1)Itis/was+adj.+ofsb.todo…
(2)Itis+adj.+forsb.+todo…
Itiseasy/difficult/hard/foolish/unwise/right/wrong/unnecessary
(3)itis+a+名詞+todo...
Itisapity/apleasure/apleasantthing/one’sduty/anhonor/ashame/acrime/noeasyjob…todo
Ittakes(sb.)sometime/courage/patience…todo…
Itrequirescourage/patience/hardwork…todo…
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。
Itisprobableforhimtocometothemeeting.(錯)
Itispossibleforhimtocometothemeeting.
Itispossible/probablethathewillcometothemeeting.
高三英語語法知識點大全
1、所謂雙重所有格就是指將 -’s 所有格與 of 所有格結(jié)合起來一起使用:
a friend of my father’s 我父親的一位朋友
a photo of Mr Smith’s 史密斯先生的一張照片
2、雙重所有格的使用場合:
①當被修飾名詞前有指示代詞、疑問代詞、不定代詞或數(shù)詞等限定詞時,一般要用雙重所有格:
I don’t like that big nose of David’s. 我不喜歡大衛(wèi)的那個大鼻子。
Which novel of Dickens’ are you referring to? 你談的是狄更斯的哪部小說?
Some friends of my brother’s will come. 我兄弟的一些朋友要來。
【注】被雙重所有格修飾名詞前有指示代詞時,通常帶有一定的感情色彩(如贊賞、不滿、厭惡等):
That little daughter of your cousin’s is really a dear. 你表哥的那個小女兒真是逗人愛。(表贊賞)
That daughter of your cousin’s is constantly complaining. 你表哥的那個女兒老是在報怨。(表厭惡)
另外,被雙重所有格修飾的名詞前可以用不定冠詞,但通常不用定冠詞:
可以說:a poem of Shelly’s, a novel of Dickens’
不能說:the poem of Shelly’s, the novel of Dickens’
②有時既可用雙重所有格也可用 of 所有格,但含義稍有差別。比較:
a photo of Mary’s 瑪麗收藏的一張照片
a photo of Mary 瑪麗照的一張照片
a criticism of William’s 威廉提出的批評
a criticism of William 對威廉的批評
高三英語語法知識點歸納
一般現(xiàn)在時:am /is /are +及物動詞的過去分詞;
例:i am asked to the party today.
(2) 一般過去時:was /were+及物動詞的過去分詞;
例:i was asked to the party last night.
(3) 現(xiàn)在進行時:am /is /are being +及物動詞的過去分詞;
例:i am being asked to the party today.
(4) 過去進行時:was /were being +及物動詞的過去分詞;
例:i was being asked to the party that time.
(5)一般將來時:助動詞will +be +及物動詞的過去分詞;
或:am /is /are going to +be +及物動詞的過去分詞;
例:i will be asked to the party tomorrow.
例:i am going to be asked to the party tomorrow.
(6)過去將來時:助動詞would +be +及物動詞的過去分詞;
或:was /were going to +be +及物動詞的過去分詞;
例:i would be asked to the party the next day.
例:i was going to be asked to the party the next day.
(7)現(xiàn)在完成時:助動詞has /have +been +及物動詞的過去分詞;
例:i has been asked to the party today.
(8) 過去完成時:助動詞had +been +及物動詞的過去分詞;
例:i had been asked to the party the day before.
另外,含有情態(tài)動詞的被動語態(tài)構(gòu)成為:情態(tài)動詞+助動詞be +及物動詞的過去分詞.
例:i may be asked to the party today.
高三英語語法知識點總結(jié)
It的用法
1、It除了代替人和物以外,還可以作形式主語.而真正的主語(不定式、動名詞或從句)則放于謂語或表語之后.
例如:It is nor easy to finish the work in two days.
然而有少數(shù)表語之后接動名詞作真正的主語.這些表語是:無助(no help)、無用(no use)、沒好處(no good);工作(hard work)、費時(a waste of time)、又危險(a danger).
例如:A、It is no use crying over spilt milk.
B、It is a waste of time waiting for him.
2、It還可以作形式賓語.通常下列動詞后面可接it作形式賓語:2f2tcjm(find,feel,think,take,consider,judge, make).
例如:A、He made it clear that he was not interested in this subject.
B、I think it no use arguing with him.
3、It用于強調(diào)句式.要強調(diào)句子的某一部分(主語、賓語、 狀語),可以把it當作先行詞.這種句子的結(jié)構(gòu)是:It is(was)+ 被強調(diào)部分+that(who)+句子的其余部分.
例如:A、It iS Professor Lin who teaches us English—(強調(diào)主語)
B、It was in Shanghai that l saw the film.—(強調(diào)狀語)
C、It was in 1990 that I worked in the factory.(同上)
但要注意與定語從句的區(qū)別.
例如:D、It was 1990 when I worked in the factory.(定語從句)
在強調(diào)句式里,我們把強調(diào)結(jié)構(gòu)It is(was)…that除去,句子還很完整.如例句C.而例句D就不能.
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