第1个回答 推荐于2016-12-01
下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.
用现在进行时表将来时(表示按计划安排要发生的事件。)
一般现在时表将来
一般现在时代替将来时
时间状语从句,条件句中,从句用一般现在时代替将来时
When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether, the moment, the minute, the day, the year, immediately
He is going to visit her aunt the day he arrives in Beijing. 他一到北京,就去看他姨妈。
典型例题
(1)He said he________me a present unless I_______ in doing the experiment.
A. had not given; had not succeeded B. would not give; succeed
C. will not give; succeed D. would not give; will succeed.
答案B. 在时间,条件或让步主语从句中一般不用将来时。本题有He said,故为过去式。主句用将来时,故选B. 此处用一般过去式代替了过去将来时。
(2) 表示现在已安排好的未来事项,行程等活动。
The museum opens at ten tomorrow. 博物馆明天10点开门。(实际上每天如此。)
瞬间动词又叫做结束性动词(是一个概念的不同叫法:)~~
瞬间动词,也叫终止性、结束性动词。表示动作的结果,或表示短暂性、一次性的动作。如:close, leave, buy, join, become, begin, fall(掉下),fall ill(病倒),get to(know), come, go, see, hear, hear from, catch a cold等。这类动词可以用于完成时,但在一般情况下,不能加上表示一段时间的状语或疑问词,
但是在否定句中,瞬间动词也可以和表示一段时间的状语、连词连用,它的含义是好长时间没进行这个动作了,没进行此动作的状态就可以延续。如:
I haven't heard from my parents for a long time. 我有好长时间没收到父母来信了。
He hasn't left home for a week. 他有一个星期没出门了
浅谈终止性动词和延续性动词
延续性动词: live,run,stay,clean,play,hold,watch,teach,read,study,teach,eat,drink,write,dance, sing,smoke
瞬间性动词:
open,stop,like,love,die,win,close,shot,begin,start enter,finish
1、终止性动词:表示不能延续的动作,即动作发生后立即结束。如:begin,arrive,borrow,buy,break,close,come,fall,dic,finish,go,leave,lend,mary,reach,receive,open,sell,start,stop等。
终止性动词的肯定式是不能持续的,所以不能和表示一段时间的状语连用,而终止性的否定式就可以和表一段时间的状语连用,因为否定本身就是可以延续的。
如:have a cold是持续性动词,表示“状态”,可与表延续性的时间状语连用,不定冠词不能省略。
I′ve had a cold since my arrival(到达 n.).
I didn′t go to school because I had had a bad cold for days.
catch a cold是短暂性动作,表“动态”:它不能和延续性时间状语连用,不定冠词“a”可有可无,catch可用take,get代替。
Put on your coat,or you′ll catch/take/get a cold.
Take care not to get cold.
但是,若cold前有形容词修饰时,则不定冠词不能省。
如:Brown has taken a slight cold.
注意下列句子:
I have caught a cold for over a week.(×)
I have had a cold for over a week.(�)
2、延续性动词:表示可以延续一段时间的动作或状态。如:be,drink,fly,eat,keep,lie,live,rain等。
延续性动词常不能和表示一个短暂具体的时间状语连用;这类动词如用于进行时态,则可以和表示一个短暂具体的时刻连用。
He worked at eight yesterday afternoon.(×)
He was working at eight yesterday afternoon.(�)
3、代替终止性动词的方法
a)用延续性动词代替终止性动词
1、用have代替buy
My brother has had(不能用has bought) this bike for almost four years.
2、用keep或have代替borrow
I have kept(不能用have borrowed) the book for quite a few days.
3、用be替代become
How long has your sister been a teacher?
4、用have a cold代替catch a cold
Tom has had a cold since the day before yesterday.
5、用wear代替put on
b)用“be+形容词”代终止性动词
1、be+married代marry 2、be+ill代fall (get) ill
3、be+dead代die 4、be+asleep代fall (get) asleep
5、be+awake代wake/wake up 6、be+gone代lose,die,sell,leave
7、be+open代open 8、be closed代close/shut
9、be+missing(gone,lost)代lose
c)用“be+副词”代终止性动词
1“be+on”代start,begin
2“be+up”代get up
3“be+back(to)”代return to,come back to,go back to
4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there等等
d)用“be+介词短语”代终止性动词
1.“be in/at +地点”代替go to /come to
2.用be in the army 代替join the army
3.“be in/at +地点”代替move to本回答被提问者采纳
第2个回答 2007-10-19
1.概念:一般现在时表示经常的、习惯性的动作或存在的状态。
2.构成:一般现在时的构成主要有两种形式:
(1)be型:句子的谓语动词只有be(am,is或are):
a.肯定句中,只出现be,如:
I am a student.我是一名学生。
b.否定句中,要在be后面加not,如:
She isn't a teacher.她不是教师。
c.一般疑问句,要将be放在句子开头(注意句首字母大写),句尾用问号,答语用Yes,主语+be.或No,主语+be+not.如:
—Are you ready?—你准备好了吗?
—Yes,I am.—是的,我准备好了。
(—No,I'm not.—不,我没准备好。)
(2)实义动词型:句中的谓语动词为实义动词(也叫行为动词):
a.肯定句中,只出现实义动词,如:
I get up in the morning.我早晨起床。
b.否定句中,要在实义动词前面加do(does)+not,do(does)作助动词,本身无意义,常与not缩写成don't(doesn't),如:
I don't like vegetables.我不喜欢蔬菜。
c.一般疑问句,要在句子开头加助动词Do(does),句尾用问号,简略答语用Yes,主语+do(does).或No,主语+do(does)+not.如:
—Do you like oranges?—你喜欢桔子吗?
—Yes,I do.—是的,我喜欢。
(—No,I don't.—不,我不喜欢。)
11.1 一般现在时的用法
1) 经常性或习惯性的动作,常与表示频腮度的时间状语连用。
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) 表示格言或警句中。
Pride goes before a fall. 骄者必败。
注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。
例:Columbus proved that the earth is round..
4) 现在时刻的状态、能力、性格、个性。
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状况,所以后句用一般现在时。
参考资料:http://zhidao.baidu.com/question/29850743.html?si=5