时间:2019-02-03 作者:英语课 分类:英文语法词汇


英语课

   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 completed 1 the work.  他已完成了那项工作。 (表结果)
  I've known 2 him since 3 then.  我从那时起就认识他了。(表经历)
  2)用于till / until 4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 describe 5 her. I ___ her several 6 times.
  A. had 7 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 few 8 minutes.
  A. have been  B. had been  C. was 9 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。

adj. 已完成的
  • 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。
adj.大家知道的;知名的,已知的
  • 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。
adv.后来;conj.既然,因为,自从;prep.自从
  • 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。
prep.直到...为止;conj.直到...时才...
  • 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。
vt.描绘,描写;形容,把…说成
  • 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。
adj.几个,若干,数个;各个的,各自的
  • 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。
vbl.have的过去式和过去分词;conj.有
  • 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。
adj.很少的,不多的,少数的;int.少数的
  • 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。
v.(is,am的过去式)是,在
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
标签: 延续动词
学英语单词
ABC (automatic bias compensation)
acosmistic
after your own heart
air cooled lamp
allwright
application circuit
artificial lift
balance long arm
ball bearing nut
birtwell
BISC (binary synchronous communication)
bolted section dock
Bou Hanifia
bow side
bridge circuit method
buffer stop
carleys
cartonium
Choice Price
chopped impulse wave
coldwave
connecting rod mechanism
consertal
contone
copaibal
crawler tread
culture-bounds
cxplant
decreolizing
desert pea
dollar bills
electrospirometer
engineering oceanography
extg.
federal standard 1027
female geese
ferrian-cassiterite
fissura mediana anterior medullae spinalis
four-pages
fuzzy subgraph
gelito-posttelinite coal
Grand Rapids
Gutenberg, Johannes
hanging-drop preparation
highway grade separation
Hinakcoat
iceycle
input record character set
King,William Lyon Mackenzie
laser-beam recording
lead crystal glass
maoz
Menad
Morgan.
Moskva(Moscow)
multimediatizing
nacritid
national policy of education
network file system (nfs)
New Brigden
nod (nuclear operation department)
oscillating conveyer
out-of pocket payment
phaeochromocytomata
phosphorthioate
photoenolizations
physical inventory control
Piana Crixia
play a part
play nurse to
postfrontals
Rami lobi inferioris
rapatelle
re emphasis
recognition of handwritten alphanumeric character
referrin'
Relic Sunday
retro maneuver
safety isolating valve
sanitary lock
Sauropus pierrei
scarlet-collar
shaving gel
sinicised
smoltifying
sound-intensity meter
spraying mixture
standby loan facility
surrosion
suspend from
system oriented
tank-farming
truluck
u-ni-ty
ultracontractivity
untraduced
valve collet
ventricle of larynx of Morgagni
vertical hill shading
viscose ripening tank
wart-hogs
White Horse Beach