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
a current account
absolute strabismus
alboll
antibody binding site
Antisanti
Barking Dogs
basis of allocation
batch pellet
be under review
bipack process
bips
bor.
box-on-box type substructure
broken tea
bucket trench digger
callerer
cantilever plate
Centropristis philadelphica
cold-mixed asphaltic concrete
compass card axis
current detector
delta fornicis
demodulating system
demoness
Denakil(Dankali)
depositional sequecne
dermatophilus disease
diffuser casing
distributed operating system
dribble test equipment
ediblest
effective percentage
elastorheodynamic
evening entertainment
experimental fluid mechanics
feed back control
fibrinopurulent
financial-inclusion
fixation bath
forceps base
Forgot password
furnace slag
germanous
grass-roots deposit
Guadarranque
harlequin-snake
height of tractive-effort transmission
hermap-hroditism
humanized design
hydra-headed
hydrolyzed yeast
idle capacity loss
illonas
importance of flare
inbound logistics
inconsumably
jenkinses
karite butter
keep doing
knuckle ball
leucomatous
LeWitt, Sol
logical reason
luminosity of night sky
Makassar
marmezin
mass appeal
merenskyite
metabolic cell
middle entrance
midword
Missouri Botanical Garden
moon letter
Morrison Formation
multifeeler casing caliper
neuendorf
numerical forms file
pan amalgamator
Pangchon
parity check matrix
pawl bitt
people in system development
r-f emission band-width
rated power of wind turbine generator set
regressive supply
resultant field
rock coast
sampling thief
shmily
speed stackings
spiral prominence
state of section
stockboy
superhuge computer
Tessalon
transistorise
trionyx spiniferuss
warm-front fog
welker
wittiful
yiwu
ziesite b