一般现在时的详细用法
今天给大家带来一般现在时的用法,快来一起学习吧,下面小编就和大家分享,来欣赏一下吧。
一般现在时的用法
表示经常性或习惯性的动作或存在的状态。
当主语是第三人称单数时:动词变相应的第三人称单数形式
当谓语动词是实意动词时的句子结构
肯定句:主语+动词原形/第三人称单数形式+其它 He likes English.
否定句:主语+don't/doesn't+动词原形+其它 He doesn't like English.
一般疑问句:Do/Does+主语+动词原形+其它 Does he like English?
肯定回答 :Yes,主语+do/does Yes, he does.
否定回答:No,主语+do/doesn't No,he doesn't.
当谓语动词是be动词时的句型结构
肯定句:主语+动词+其它 It is a dog.
否定句:主语+be+not+动词原形+其它 It is not a dog.
一般疑问句:Be+主语+动词原形+其它 Is it a dog?
肯定回答 :Yes,主语+be Yes, it is.
否定回答:No,主语+be+not No, it isn't
一般现在时用法说明
一.动词变化:一般现在时主要用动词原形表示,但第三人称单数后要加词尾-s,另外be和have有特殊的人称形式。
在加词尾-s时要注意:
情况 加法 例词
一般情况 加-s reads, writes, says
以ch, sh, s, x, 或o收尾的词 加-es teaches, washes, guesses, fixes, goes
以“辅音字母+y”结尾的词 变y为i再加-es try-tries
carry-carries
二.一般现在时表示:
(1)表示现在的状态, 例如:He's twelve.
(2)表示经常性的或习惯性的动作, 常与often, usually, sometimes, always, every day等表示经常性的或习惯性的时间状语连用.例如:I go to school every day.
(3)表示主语具备的性格和能力, 例如:She likes apple.
(4)表示客观、普遍的真理。Two and four makes six.
三 句型
肯定句结构:主语+be动词/行为动词+宾语/表语
(1) 行为动词:
a. 主语为第一、二人称、复数人称时(I, you, we, they, the boys),主语+动词原形+宾语。
They go to school every day.
b.主语为第三人称单数时(it, he,she, Lily),主语+动词s/es+宾语。
Lily often likes singing.
(2)系动词(be): 主语+系动词+表语。
I am… They/We/You are… He/She/It is…
2.否定句结构: 主语+be动词/行为动词+宾语/表语
(1) 行为动词:
a. 主语为第一、二人称,复数人称时,主语+don't+动词原形。
They don't go to school every day.
b.主语为第三人称单数时,主语+doesn't +动词原形。
Lily doesn't like singing.
(2)系动词(be): 主语+is/am/are后加not+表语
I am not a worker.
3. 一般疑问句结构:
(1)行为动词
主语为第一、二人称,复数人称时,Do+they/we/you+动词原形
Do they go to school every day? (Yes, they do. No, they don't.)
b.主语为第三人称单数时, Does +he/she/iIt+动词原形
Does Lily often like singing? (Yes, she does. No, she doesn't.)
(2) 系动词(be): is/am/are+主语+表语
Are you a worker? (Yes, I am. No, I'm not.)
4.特殊疑问句结构
特殊疑问词(what, how often, which, where,who)+一般疑问句?
(1)行为动词
What do they do every day?
How often does Peter go fishing?
(2) 系动词(be):
Who is the girl at that gate?
一般现在时的三种形式
1. 谓语是be(am/is/are)的一般现在时。
①肯定形式:主语+be+表语(形容词、名词充当表语)。
I am hungry.
You are beautiful.
He is a doctor.
②否定形式:主语+be+not+表语(形容词、名词充当表语)。
I am not hungry.
You aren’t beautiful.
He isn’t a doctor.
③一般疑问句形式:Be+主语+表语(形容词、名词充当表语)?
肯定回答:Yes,主语+be. 否定回答:No, 主语+ be+not.
—Are you hungry?
—Yes,I am./No,I’m not.
—Is he a doctor?
—Yes, he is./No, he isn,t.
④特殊疑问句形式:特殊疑问词+Be开头的一般疑问句?
—What is he?
—He is a doctor.
注意:be要随着主语变。
2. 谓语动词是实义动词(及物动词或不及物动词)的一般现在时。
①肯定形式:“主语+及物动词+宾语”或“主语+不及物动词”。
She has a little brother.
她有一个弟弟。
The sun rises in the east.
太阳从东方升起。
②否定形式:“主语+don’t/doesn’t+及物动词+宾语”或“主语+don’t/doesn’t+不及物动词”。
She doesn’t have a little brother.
她没有弟弟。
I don’t eat every morning.
我每天早晨都不吃饭。
③一般疑问句形式:“Do/Does+主语+及物动词原形+宾语”或“Do/Does+主语+不及物动词原形”。
肯定回答:Yes,主语+do/does. 否定回答是:No, 主语+ don’t/doesn’t.
—Do you eat every morning?
—Yes, I do./No, I don’t.
—Does she have a little brother?
—Yes, she does./No, she doesn’t.
④特殊疑问句:特殊疑问词+do/does开头的一般疑问句?
What do you like?
When do you go to school?
注意:根据主语确定用do还是does。
3. 谓语是情态动词can/may…+动词原形的一般现在时。
①肯定形式:主语+情态动词can/may…..+动词原形+宾语。
I can finish my homework.
②否定形式:主语+情态动词can/may…..+not+动词原形+宾语。
I can’t finish my homework.
③一般疑问句形式:情态动词Can/May…..+主语+动词原形+主语+宾语。
肯定回答是:Yes,主语+情态动词. 否定回答是:No, 主语+ 情态动词+not.
—Can you finish your homework?
—Yes,I can./No, I can’t.
④特殊疑问句形式:特殊疑问词+情态动词can/may…..开头的一般疑问句?
—What can you do?
—I can do my homework.
注意:情态动词can/may…..+动词原形。
现在完成时用法讲义
现在完成时是初中的重要时态,今天我们一起来学习下,内容很详细,各位老师可以直接使用,也可以根据先后内容做成PPT课件。
现在完成时的构成
现在完成时由“have(has)+过去分词”构成。has 用于主语是第三人称单数时。(过去分词的构成P122—123中“动词的基本形式”)
①I have just finished my homework. 我刚做完功课
②I have lived in Guangzhou for more than three years. 我已经在广州住了三年多了。
③My sister has seen the movie many times. 那部电影我姐姐看过好多次了。
现在完成时的否定句和疑问句的构成。
否定句:主语+have /has +not+过去分词+其他.
说明:have和has常与not 缩写成haven't 和hasn't .
①I haven't seen much of him recently 最近我没怎么见到他。
②He hasn't been to Japan.他没有去过日本。
一般疑问句: Have /Has +主语+过去分词+其它?
肯定回答: Yes.主语+have /has.
否定回答: No,主语+have /has not。
③—Have you finished your homework ? 你已经做完家庭作业了吗?
–Yes, I have (No, I haven't ) 是的 。(不,还没有)
④–-Has he passed the test yet ? 他考试及格了吗
—-Yes, he has . (No , he hasn't ) 是的。(不,没及格)
巩固练习:
The bus hasn't arrived yet. (改成肯定句)The bus ________ _______ __________.
I have watched the interesting film recently. (改成一般疑问句)
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现在完成时用法讲义
作者: admin来源: 网络文章 时间: 2019-12-22
现在完成时是初中的重要时态,今天我们一起来学习下,内容很详细,各位老师可以直接使用,也可以根据先后内容做成PPT课件。
现在完成时的构成
现在完成时由“have(has)+过去分词”构成。has 用于主语是第三人称单数时。(过去分词的构成P122—123中“动词的基本形式”)
①I have just finished my homework. 我刚做完功课
②I have lived in Guangzhou for more than three years. 我已经在广州住了三年多了。
③My sister has seen the movie many times. 那部电影我姐姐看过好多次了。
现在完成时的否定句和疑问句的构成。
否定句:主语+have /has +not+过去分词+其他.
说明:have和has常与not 缩写成haven't 和hasn't .
①I haven't seen much of him recently 最近我没怎么见到他。
②He hasn't been to Japan.他没有去过日本。
一般疑问句: Have /Has +主语+过去分词+其它?
肯定回答: Yes.主语+have /has.
否定回答: No,主语+have /has not。
③—Have you finished your homework ? 你已经做完家庭作业了吗?
–Yes, I have (No, I haven't ) 是的 。(不,还没有)
④–-Has he passed the test yet ? 他考试及格了吗
—-Yes, he has . (No , he hasn't ) 是的。(不,没及格)
巩固练习:
The bus hasn't arrived yet. (改成肯定句)The bus ________ _______ __________.
I have watched the interesting film recently. (改成一般疑问句)
______ you ________ the interesting films recently?
I have already had my breakfast. (改为否定句)I ________ had my breakfast ______.
I have already finished doing my homework. (改为一般疑问句)
_____ ________ finished doing your homework ________?
She has already worked out that difficult math problem. (改为否定句)
She _________ worked out that difficult problem __________.
现在完成时的基本用法
现在完成时有两个主要用法,“已完成”用法和“未完成”用法。
现在完成时的“已完成”用法
“已完成”用法指动作或过程发生在说话之前某个不明确的时间,现在已经完成,但后果或影响至今仍然存在。其重点就是着眼于现在,强调过去发生的动作对现在造成的影响和后果。
现在完成时常与表示不确定的时间状语连用,如:yet, just, before , recently ,once ,lately 等,也同表示频率副词连用,如:often ,once ,ever ,never等。www.yingyuyufa.com
① I've forgotten his telephone number.我忘记他的电话号码。(表示现在没法跟他联系)
② He has already given up smoking .他已经戒烟了。(表示现在已经不抽烟了)
③ How many times have you been to Beijing ?他去过北京几次? (与表示频率的状语连用)
现在完成时的“未完成”用法。
“未完成”用法是指它可以表示开始于过去持续到现在(也许还会继续进行下去)的动作或状态。这一用法与“已完成”的用法主要区别在于它通常都要与表示一段时间的状语连用。常用的表示时间的状语有:for…..,since…(自从…),so far (到目前为止)等。如:①We have received no news from her for 2years .两年了,我们没有她的一点消息。
②She has taught us since I came to this school.从我来学校开始她就一直教我们。
使用现在完成时应注意的情况
瞬间动词(也叫点动词,非延续性动词或终止性动词)表示的动作有一个终点,到了终点就不能再延续,因此不能与表示一段时间的时间状语(如for短语,since短语等)连用,但是可以与表示非持续的时间状语连用。如:
His father has died for three years . ( )
【die(死)为瞬间动词,不能与表示一段时间的状语连用
①他父亲去世已经三年了。 His father died three years ago . ( )
【可以与表示非持续性的时间状语连用
I have bought the book for a week . ( )
【buy(买)为瞬间动词,不能与表示一段时间的状语连用
②这本书我买了一个星期了。 I bought the book a week ago . ( )
【可以与表示非延续性的时间状语连用
表示时间段的时间状语时,可以将瞬间动词变为同义的延续性或表状态的动词(短语)。所以,上面两例还可以分别表示为:
③His father has been dead for three years . {be dead (死的)表状态}
④I have had the book for a week . {have(拥有)表延续性动作}
常见的瞬间动词可以转换成表延续状态的词有如下一些:
die —–be dead leave / go—–be away (from) come /go back—-be back
buy—–have borrow——-keep make friends—be friends
open—-be open fall asleep—be asleep marry—–be married
begin /start —be on finish——-be over get ready —-be ready
arrive/ get to /reach /come—–be in / be at /stay
join (the Party)—–be a (Party) member / be in (the Party )
如果出现一段时间时,同时又要保留非延续性动词,则可以用“It is +时间+since+一般过去的句子“句型改写。如上面的句①和句②可以分别表示为:
① It is three years since his father died. ②It is a week since I bought the book
For+一段时间 ,since+过去的时间
巩固练习:用for, since, ago填空。
Sally has been away from London ________ last Saturday.
Our school has changed a lot ________ the new building was built.
Tommy has had this motorcycle ________ three years.
I have been in Nanjing ________ eight years.
My parents has been married since twenty years ________.
My cousin joined the army three months ________.
同义句转换
1) They borrowed it last week. They ____ ______it since ______ _______.
I bought a pen two hours ago. I ______ ______a pen for ______ _______.
He has gone to Beijing. He _____ ______ ______ Beijing for two days.
4)He joined the league in 2002.
He _____ ______ a _________ ______ the ________ for two years.
My grandpa died in 2002. My grandpa _______ _____ ______for _______ ________.
6)The shop closed two hours ago.
The shop _______ ________ ______ for ________ _________.
7)The door opened at six in the morning.
The door ________ ________ ________ for six hours.
如现在完成时的谓语动词是瞬间动词的否定式,则一般可以和表示一段时间的for短语连用。因为瞬间动词的否定式构成一种状态,而状态是可以持续的。
① We haven't met him for a long time .我已经好久没遇到他了。{表示“没见到”这一状态}
② The old man hasn't left home for a month .那位老人已经有一个月未出门了。(表示“足不出户”
have (has )been to 与have (has) gone to have (has)been in
have (has) been to 表示“去过某地”,指曾经有过或没有过的一种经历。说话时已从该地回来或已从该地去了其他地方。可以同once,often,never,ever, many times 等连用。
have(has )gone to 表示“去某地了”,指说话时某人已不在此地。在去某地的途中或已在某地。所以一般来说此结构只用于主语是第三人称时。
试比较:
She has gone to Shanghai . 她去北京了(表示她人此刻不在这,在北京的途中或已在北京)
She went to Shanghai a year ago 她去过北京。(表示她到过北京这一经历)
have (has) been in 表示“已在某地(待了多久)若该地为小地方,则in需要用at代替,当后面跟副词时只用have been,其后不可以用任何介词。
① The Greens have been in China for two years .
② LiLei's aunt has been at this school for two years.
③The Greens are in China now. They have been here for a half a year.
巩固练习 :用have(has) been 或have(has) gone 填空。
A: Where ____________ Li Fei ___________?B: He ____________ to Hainan Island.
A: How long _______ he __________ there? B: He _____________ there for three days.
A: When will he come back, do you know? B: I'm afraid he won't come back recently.
A: Could you tell me the way to Hainan Island?
B: Sorry, I _________ never ___________ there.
A: How many times ___________ Li Fei __________ to that place?
B: He _____________ there only once.