2022-01-28 11:18:58|已瀏覽:286次
一:特殊句子結構
1.as...as...引導的比較級:
(1)“as +形容詞或副詞原級+as+被比較對象”結構。
(2)在否定句或疑問句中可用 not so…as….
2.only 引導的倒裝句型:only +狀語 (或狀語從句)位于句首時,句子部分倒裝。
3.wish 引導的虛擬語氣:wish 后面的從句,當表示與事實相反的情況,或表示將來不太可能實現(xiàn)的愿望時,其賓語從句的動詞形式為:
⑴表示對現(xiàn)在情況的虛擬:從句動詞用過去式表示,be 的過去式用 were.
⑵表示對過去情況的虛擬:從句動詞用 had +過去分詞。
⑶表示對將來的主觀愿望:謂語動詞形式為“would/ should/ could/ might +動詞原形”。在這種情況下,主句的主語與從句的主語不能相同,因為主句的主語所期望的從句動作能否實現(xiàn),取決于從句主語的態(tài)度或意愿(非動作名詞除外) 。
4.it 形式賓語:和 it 作形式主語一樣, 我們常用 it 來作形式賓語, 把真正的賓語從句放在句末, 這種情況尤其出現(xiàn)在帶復合賓語的句子中。
5.The+比較級,the+比較級表示“越......越......”。
6. 賓語從句:一般疑問句做賓語,用 if 或 whether
7. 原因狀語從句:since 引導的例句:Don’t eat too much sugar since it is bad foryour health.
8. 否定詞前置倒裝:scarcely/hardly...when...; no sooner…than…例句:Scarcely had he arrived at home when it began to rain.
9. If 虛擬條件句
①對過去事實進行虛擬的時候,if 條件句和主句的構成為:If+主語+had done,主語+would/could/should/might have done sth
eg. If I had worked hard enough in high school, I would have been admitted to a keyuniversity 重點大學.
②對現(xiàn)在事實進行虛擬的時候,if 條件句和主句的構成為:If+主語+did/were, 主語+would/could/should/might do sth
eg. If I were you, I would choose to learn French.
③ 對將來事實進行虛擬的時候,if 條件句和主句的構成為:If+did(were)/were to do/should do, 主語+would/could/should/might do sth
eg. If I had time tomorrow, I would certainly help you.
10. 賓語從句: 從句在句子中作賓語: 動賓/介賓
Grandpa said that you should spend 100 million in a month.
二.Should+動詞原形
其后的賓語從句及以其同根名詞(suggestion ,advice, proposal, requirement)引導的主語,表語,同位語從句中用(should)+動詞原形。
He suggested that we (should) go home earlier.
三.類似 if 型
1. wish/as if/as though/ if only/would rather that …
e.g. I wish I was 30 years younger.
2.介詞短語引導的虛擬語氣
e.g. If you had not helped us, we would not have made....
四:謂語動詞
1.行為動詞/實意動詞:eat, sleep, clean, Stay(可以單獨做謂語,用副詞修飾)
2.連系動詞:be, get, become (不能單獨做謂語,其后成分稱為表語)
3.情態(tài)動詞:can, could, will (不能單獨做謂語,后接動詞原型)
4.助動詞:do/have 的各種形式,幫助完成時態(tài)與語氣的動詞,不能單獨做謂語。
非謂語動詞
1.不定式:to do(除了不能做謂語,其他成分都能做)
2.分詞:現(xiàn)在分詞:Ving(表主動與進行),過去分詞:(表被動與狀態(tài))
3.動名詞:Ving 英語一句話只能有一個主謂結構如果出現(xiàn)更多動詞:加連詞(and/ but / so…)放入從句變?yōu)榉侵^語動詞
1) Grace finished her dinner at restaurant
2) attended the local dancing party.
(一).加入連詞Grace had finished dinner at restaurant, and she attended the local dancing party later.
(二) . 放 入 從 句The moment /when Grace had finished dinner at restaurant, she attended the local dancing party later.
(三).變?yōu)榉侵^語動詞Grace finished her dinner quickly to attend the local dancing party.
五:時態(tài)與語態(tài)考點剖析
一般現(xiàn)在時
考點一:表示永恒的真理,即使出現(xiàn)在過去的語境中,仍用一般現(xiàn)在時,
如:I learned that the earth goes around the sun when I was in primary school.
考點二:在時間和條件狀語從句中,從句用一般現(xiàn)在時代替一般將來時;常用的引導詞有:until /when/ before/as soon as /the moment/if/unless
I will not attend the conference if it rains tomorrow.
現(xiàn)在完成時
表示動作發(fā)生在過去,完成在過去,但強調與現(xiàn)在情況仍有聯(lián)系,其結果或者影響仍然存在。有標志性的時間狀語;
He has opened the door.
考點一:for +時間段;since+時間,主句用現(xiàn)在完成時so far , up to now, until now
They have lived in Beijing for five years.
考點二:常見的不確定的時間狀語:lately, recently ,already , yet, so far,up till now
Has it stopped raining yet?
考點三:表示”第幾次做某事“或者”it is(最高級)
the best (worst, most interesting),
主句用一般現(xiàn)在時,從句用現(xiàn)在完成時。
This is the first time that I have visited China.
過去完成時
表示過去某個時間之前已經(jīng)完成的動作,即發(fā)生在過去的過去。
There had been 25 parks in the city up till 2000.
考點一:用于 hardly/ scarcely/ barely /rarely … when..; no sooner … than....句型中,主句用過去完成時,從句用一般過去時
I had hardly finished my work when he came to see me.
考點二:表示第幾次做某事/最高級,主句用過去式,從句用過去完成時。
That was the second time that she had seen her grandpa .
考點三:用于 by +過去時間段
She had learned 3 different languages by the end of 2009.
將來完成時(will have done)表將來某時刻之前已完成的事情,時間狀語非常明顯。
考點一: by +將來時間段
By next Friday, I will have got ready for the exam.
一般過去時
表過去某個特定時間發(fā)生且完成的動作,或過去習慣性動作,不強調對現(xiàn)在的影響。
考點一:used to do 過去常常做某事 He used to smoke a lot.
Be used to doing sth 習慣于做某事 He is used to getting up early.
進行時態(tài)
考點二:表示某個具體時間點在干什么,常常有具體的時間詞,如 at 10 o‘clock,at that moment 等。
He was doing homework at 9 o ’ clock yesterday evening.
考點三:趨向性動詞或瞬間動詞常用現(xiàn)在進行時表將來,如:go, come, leave, start等
I am coming. (馬上來了)
He is leaving Chongqing on Friday. (他星期五離開重慶)
He is leaving for Chongqing on Friday.(他星期五要來重慶)
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