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新概念英语1复习
一. 时态
1. 一般现在时
1) 经常性或习惯性的动作,常与表示频度的时间状语连用。 时间状语: every…, sometimes, at…, on Sunday I leave home for school at 7 every morning.
2) 客观真理,客观存在,科学事实。 The earth moves around the sun. Shanghai lies in the east of China.
3) 现在时刻的状态、能力、性格、个性(状态)。 I don't want so much.
Ann Wang writes good English but does not speak well. 比较:Now I put the sugar in the cup. I am doing my homework now. 第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作。再如:Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志,表示正在进行的动作的客观动作,所以后句用现在进行时。
句子构成:
含有be动词的句子:肯定句: s + am/ is /are + sth 否定句:s + am/ is /are not+ sth 一般疑问句:Am/ Is / Are + s + sth ? He is a teacher.
The girl is very beautiful. Tim and Jack are students.
★变一般疑问句将be动词移到句首 Is he a teacher?
Is the girl very beautiful? Are Tim and Jack students? ★变否定句在be动词后面加not He is not a teacher.
The girl is not very beautiful. Tim and Jack are not students. ★肯定回答及否定回答
Yes, he is. No, he is not. Yes, she is. No, she is not. Yes, they are. No, they are not.
含有一般动词的句子
肯定句:S (不是三单主语) + v (原形) + sth / S (三单主语) + v+s/es + sth
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否定句:S (不是三单主语) + don’t + v (原形) + sth / S (三单主语) + doesn’t + v(原形) + sth 一般疑问句:Do +S (不是三单主语) + v (原形) + sth / Does + S (三单主语) + v(原形)+ sth ?
主语是三单的情况:
He likes books. She likes him.
The dog likes bones.
★变疑问句在句首加does, 动词变为原型 Does he like books? Does she like him?
Does the dog like bones?
★变否定句在主语及动词之间加doesn’t, 动词变为原型 He doesn’t like books. She doesn’t like him.
The dog doesn’t like bones. ★肯定回答及否定回答:
Yes, he does. No, he doesn’t. Yes, she does. No, she doesn’t Yes, it does. No, it doesn’t.
注意:第三人称单数形式一般在动词后面加s / es,不要和名词复数混淆,变否定句或疑问句时名词复数没有任何变化。
主语不是三单的情况:(第一人称、第二人称和第三人称复数) I want to have a bath. We have some meat.
The students like smart teachers. ★变疑问句在句首加do
Do you want to have a bath? Do we have any meat?
Do the students like smart teachers? ★变否定句在主语和动词之间加don’t. You don’t want to have a bath. We don’t have any meat.
The students don’t like smart teachers. ★肯定回答及否定回答 Yes, I do. No, I don’t. Yes, we do. No, we don’t
Yes, they do. No, they don’t.
2. 现在进行时
现在进行时的基本用法:
a. 表示现在( 指说话人说话时) 正在发生的事情。 We are waiting for you.
b. 习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。
Mr. Green is writing another novel. (说话时并未在写,只处于写作的状态。) She is learning piano under Mr. Smith.
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c. 表示渐变的动词有:get, grow, become, turn, run, go, begin等。 The leaves are turning red.
It's getting warmer and warmer.
d. 与always, constantly, forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩。
You are always changing your mind.
构成: 主语+am / is / are + doing (动词的现在分词) +sth We are having lunch. He is reading a book.
The dog is running after a cat.
The boys are swimming across the river. ★变疑问句将be动词移到句首 Are we having lunch? Is he reading a book?
Is the dog running after a cat?
Are the boys swimming across the river? ★变否定句在be动词后面加 not We are not having lunch. He is not reading a book.
The dog is not running after a cat.
★特殊疑问句:what, which, how, where, who, etc. 疑问词+ am / is /are+主语+ doing ? What are you doing? What is she doing?
What is the dog doing? (必背)
没有进行时的动词
1) 事实状态的动词belong, possess, cost, owe, exist, include, contain, matter, weigh, measure, continue, have, has当”拥有”讲时没有进行时 I have two brothers.
This house belongs to my sister.
2) 心理状态的动词
Know, realize, think see, believe, suppose, imagine, agree, recognize, remember, want, need, forget, prefer, mean, understand, love, hate I need your help.
He loves her very much.
3 ) 瞬间动词
accept, receive, complete, finish, give, allow, decide, refuse. I accept your advice.
4) 系动词
seem, remain, lie, see, hear, smell, feel, taste, get, become, turn You seem a little tired
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3. 一般过去时
1)在确定的过去时间里所发生的动作或存在的状态。
确定的时间状语有:yesterday, last week, an hour ago, the other day, in 1982等。 Where did you go just now?
2)表示在过去一段时间内,经常性或习惯性的动作。
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.
3)比较:
一般过去时表示的动作或状态都已成为过去,现已不复存在。 Christine was an invalid all her life. (含义:她已不在人间。) Christine has been an invalid all her life. (含义:她现在还活着)
Mrs. Darby lived in Kentucky for seven years. (含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.( 含义:现在还住在肯塔基州,有可能指刚离去)
注意: 用过去时表示现在,表示委婉语气。
1)动词want, hope, wonder, think, intend 等。 Did you want anything else?
I wondered if you could help me. 2)情态动词 could, would.
Could you lend me your bike?
含有be动词的句子, 将动词变为过去式,am, is的过去式为was,are的过去式为were 肯定句: s + was / were + sth 否定句:s + was / were not+ sth 一般疑问句:Was / Were + s + sth ?
I was at the butcher’s.
You were a student a year ago.
The teacher was very beautiful ten years ago. ★变疑问句将be动词移动到句首 Were you at the butcher’s?
Were you a student a year ago?
Was the teacher very beautiful ten years ago? ★变否定句在be动词后面加not I was not at the butcher’s.
You were not a student a year ago.
The teacher was not very beautiful ten years ago. ★肯定回答否定回答
Yes, I was. No, I was not.
Yes, you were. No, you were not.
Yes, he/she was. No, he/she was not. ★特殊疑问句:
特殊疑问词 + 一般疑问句
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