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
2-ketogulonic acid
a distinction without difference
accountabilities
adding enzyme
Allent
allografted
alvarenga
anchor-leg
annual salt-marsh aster
asteroid
atomic symbols
ballas
bend loading
beta testing
biorthogonality relations
bovine antitoxin
Brahmani,Brahmanee
call divert
cartilago tubae auditivae
chasis
clockwise direction
Comstock's mealybug
cot
cross-section of array
cyano formate
diffusion capacity for oxygen of lung
documented vessel
dptac
dynamic pointer array
electronic payment system
Ferropallidite
gampi
genus Sarcobatus
getting cold feet
goedendags
graphic intergrowth
ground resolution
Helms
high-pressure inlet zone
hodge-poker
hydroelectric wave generator
igneous structure
illegal buy-up
immunoserology
index of recovery
indistance
insanity plea
intagliated
intercompany profit on depreciable assets
intermittent light rain
introject
justiceless
licensed intermediary
loop fracture
mandolinists
Manzui
maximum landing weight
menthoides
messori
milling cutter diameter
mining debris
multi-objective fractional programming
multiple interfacing processor
multiple-unit tube
munder marl
na'il
new time
ofgreet
osvald
outthrown
pillow-talks
platinum iridium alloys
poly(U)agarose
precedence function
puppying
radial-cooling slot
radiation sicknesses
re-investigations
recircumcised
rimiest
robbie
sandpapering with water
santal oil
Schachter's experiment on emotion
school-times
semenologists
Serravalle Scrivia
sliding-vane (rotary) compressor
slotten
standard frequency and time signal-satellite service
star streams
straight voting
striped dogwood
Sulawesi Selatan
taken altogether
thamnornis
thymolipoma
two-phase ion-exchange column
ureterogram
voltage null detector
year-end cut-off procedure