时间:2019-01-16 作者:英语课 分类:英文语法词汇


英语课

   现在完成时有两种主要用法,即已完成用法(或影响性用法)和未完成用法(或持续性用法)。具体用法如下:


  1. 影响性用法
  该用法表示某个动作发生于过去,完成于过去,但这这个过去发生并完成的动作对现在有影响或结果,同时说话者强调的或感兴趣的就是这个影响或结果。如:
  He has gone home. 他回家去了。(其影响或结果:现在不在这里)
  I have seen 1 the film. 我看过这部电影。(其影响或结果:我知道其内容)
  He has finished 2 his homework. 他完成作业了。(其影响或结果:可以做其他事情了)
  2. 持续性用法
  该用法表示某动作发生于过去,但并未在过去完成,而是一直持续到现在,并且有可能继续下去(也可能到此结束)。如:
  He has been blind 3 from birth 4. 他生下来就双目失明。
  He has lived here for five years. 他已在这儿住了5年。
  He has worked in films all his life 5. 他在电影界干了一辈子。
  3. 重复性用法
  该用法表示在过去反复发生的动作,并且这个反复的动作一直延续至今。如:
  My father has always gone to work by bike. 我父亲一向骑车上班。
  I have always found 6 him difficult. 我老是感到他这人很难相处。
  4. 将来性用法
  该用法主要见于时间或条件状语从句中,用以表示一个将来完成的动作。如:
  I’ll tell you when I’ve finished. 我完成的时候会告诉你。
  If she hasn’t gone to bed when you see her, tell her to give me a ring. 如果你见到她时她还睡觉,让她给我打个电话。

vbl.(see的过去分词)看见
  • Since I left college, I have not seen him.自从我离开大学以后,就没有见过他了。
  • I hope to have seen the film next week.我希望下星期能看到这部电影。
adj.完成的,精湛的;v.动词finish的过去式和过去分词
  • We finished up everything there was on the table. 我们把桌上的东西全吃完了。
  • We can certainly have the job finished on time.我们肯定能按时完成任务。
adj.盲目的,瞎的;n.百叶窗;v.使失明
  • He is blind in the left eye.他的左眼是瞎的。
  • The blind live in the dark.盲人在黑暗中生活。
n.出身,血统,出生,诞生,出现,起源
  • She gave birth to a fine healthy baby.她生了一个健康可爱的婴儿。
  • She supports birth control.她赞成计划生育。
n.生活;生命
  • The doctor came in time to save his life.医生及时来抢救他的生命。
  • At last he knew the meaning of life.终于,他知道了生命的意义。
v.建立,创立,创办;vbl.(find的过去分词)找到
  • I found him at home.我发现他在家。
  • The United Nations was found in 1945.联合国于1945年成立。
标签: 现在完成时
学英语单词
abdominal part
absolutely stable
absorbing state
adrenochromes
aluminium foils
asymmetric transformation
banded stilts
basivertebral vein
battologized
be let in on the ground floor
body feed
Buridan's ass
cash invoice
Chorzelów
chronographer
clip off
combined vibrating roller
compensating feedback loop
conus planorbis
cost objective
cotton production
cylinder by-pass valve
D-frame
data over voice
days of rest
deglamorization
derestrict
dextrotorsion
dispersion-equalization
ditching attitude
Dohans
electrical characteristics
externally-braced monoplane
fall-out of synchronism
forecaddies
golden eagle
Goldstein-Scheerer tests
graduated string
half-hunter
Haplopappus spinulosus
have analogy to
heating system
heliotridylamine
hildebrand
hotlines
hyuck
indirect type central air-conditioning unit
Internet suffix
Izena-jima
Kurdistani
lampyridaes
leukoplania
liquid waste receiver tank
local acceptance
lsi-cml circuit technology
magnetoresistance magnetometer
merions
metal surface plasmon and second harmonic generator
minimum graph
mohs scales
natural environment management
nervi ampullaris lateralis
neverless
occasional light
once and a way
ordinary life assurance
oscillator padding
Osipa
photocell matrix
piston curl
pivot hinge
pontes
prequalified tenderer
puffest
queueing system structure
reflux column
repair of side ditch
Revere, Paul
sample-reset loop filter
Scirpus rosthornii
scornliche
separation of spinal cord and arachnoid adhesions
silicon diode array
sope
speed through the water
stellite-faced valve
Subprime Meltdown
tee-times
toll free number
toroidal discharge
transitive law
trichomonal urethro-cystitis
under constraint
undistributed score
virus diarrhea
waltz through
white cypresses
wide anode
win ... over
Yak-141
yellow-necked mice
zygomorphic pea flower