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
5-(1-chlorovinyl)-2'-deoxyuridine
anion-exchange tower
Arteria superior lateralis genus
Aussig
Baltic teas
be aghast at
behavior change model
biangulate
Biochimica
biprocessor configuration
birdsmouth
broad tuning
burned-in image
cable installation with hanger
cad/cam
Candollea
certificate for import inspection
chitosanoligosaccharide
chlorogenus
Claes Oldenburg
coded current control
cohomology module
column radius
contour accentuation
cromfordite
darnable
dosemic
draining-boards
duty to support children
enchastened
engraft in
eurotech
evanescent elasticity
Gg3
glyceolinIV
gun mike
h(a)emostat
high-pressure blowpipe
hydroanencephalus
instimulating
interconnected circuit
intestinal gland
L-asparagine
laccases
LAPM
latitude by dead reckoning
least-cost
lighted airway
lorry driver
m-carcinotron oscillator
manure salt
my-self
nitrogen pool
nowt
nrcc
openface gold crown
paperers
paraffinized
Petrov classification
physical production schedule
pike-perches
place of entertainment
planetological
poison ashes
Pr-Nb fused alumina
pressure distillation
recording accelerometer
reindustrialises
replacement level
representative ensemble
Roaillan
rotor coil
saturation characteristic curve
screened pentode
Selcuk(Ephesus)
self-discharge car
sharenting
short break line
steel ratio
stick to one's text
sweetgrass
sympathetic inhibitor
task-specific
tension analyer
Theodosian
tonopah
tow component alloy
toximeter
transverse strike-slip fault
tribble
triple-drum boiler
unasked-for
UNSGD
uritrate
vat coloring
wax palm
weak-mindedness
whing-ding
whisky voice
worm optical disk
yingfen