延续动词与瞬间动词
文章来源: 文章作者: 发布时间:2007-01-24 08:01 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
1) 用于完成时的区别
  延续动词表示经验、经历; 瞬间动词表示行为的结 果,不能与表示段的时间状语连用。
   He has completed1 the work.  他已完成了那项工作。 (表结果)
   I've known2 him since3 then.   我从那时起就认识他了。(表经历)

2) 用于till / until5从句的差异
   延续动词用于肯定句,表示"做……直到……" 瞬间动词用于否定句,表示"到……,才……"
   He didn't come back until ten o'clock.
    他到10 点才回来。
   He slept until ten o'clock.     
    他一直睡到10点。
 
典型例题
1. You don't need to describe6 her. I ___ her several7 times. 
A. had8 met B. have met  C. met D. meet
  答案B. 首先本题后句强调对现在的影响,我知道她的模样,你不用描述。再次,several times告知为反复发生的动作,因此用现在完成时。

2.---I'm sorry to keep you waiting.
 ---Oh, not at all. I ___ here only a few9 minutes.
A. have been  B. had been  C. was10 D. will be
  答案A. 等待的动作由过去开始,持续到现在,应用现在完成时。


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1 completed completed     
adj. 已完成的
参考例句:
  • I completed the test within the time allotted . 我在限定的时间内完成了试验。
  • Please return the completed form with your remittance. 请将填好的表格连同汇款寄回。
2 known hpKzdc     
adj.大家知道的;知名的,已知的
参考例句:
  • He is a known artist.他是一个知名的艺术家。
  • He is known both as a painter and as a statesman.他是知名的画家及政治家。
3 since syswX     
adv.后来;conj.既然,因为,自从;prep.自从
参考例句:
  • He's been working in a bank since leaving school.自从毕业后,他就一直在一家银行工作。
  • I have known him ever since I was a child.我自孩提时代起就已经认识他了。
4 till dovwL     
conj.直到(...为止);n.(账台中)放钱的抽屉;prep.直到;pron.直到...为止,直到;vt.耕种
参考例句:
  • It was not till 11 o'clock that he came back last night.昨晚直到11点他才回来。
  • You can come to my house till all hours.你多晚来我家都没关系。
5 until cjnw3     
prep.直到...为止;conj.直到...时才...
参考例句:
  • He arrived home until midnight.他直到半夜才到家。
  • She didn't sleep until midnight.她直到半夜才睡。
6 describe NmSzL     
vt.描绘,描写;形容,把…说成
参考例句:
  • Can you describe your son?你能描述一下你儿子 吗?
  • It is very difficult to describe my joy in words.我的快乐难以用语言来形容。
7 several STMzb     
adj.几个,若干,数个;各个的,各自的
参考例句:
  • Words often have several meanings.单词往往有若干个意思。
  • Several new members have come into the club since last year.自去年以来,又有些新成员加入了俱乐部。
8 had FeBxb     
vbl.have的过去式和过去分词;conj.有
参考例句:
  • I just had a good idea!我有个好主意!
  • The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。
9 few kk0x2     
adj.很少的,不多的,少数的;int.少数的
参考例句:
  • There are few woods in that area.那个地区几乎没有森林。
  • I have a few questions.我有些问题要问你。
10 was bglwv     
v.(is,am的过去式)是,在
参考例句:
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
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