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
additive attribute
algal sapropel
Annamese
anointing
armigers
art tatums
bad memory
bait car
bank demand draft
bromacetal
cable tracer
capsule of the liver
centdarol
chama ambigua
clusterers
commissioners of audit
control output
costocentral artery
Curvatura lumbalis
denticulatol
Diaramana
drum kits
Dukler theory
entohyal
equilibrium-constant
film-productions
final customer
financial innovations
fire-alarm
fleecy nonwoven textile
fonned
Gentiana sarcorrhiza
genus Annona
grade crossings
Great Bear R.
greensman
grudgingly
Guerrara
hailfellows
hierarchical model following controller
hinnites
horsecloths
hughtons
iron bird
lay a mine for someone
leprophil
liquid stool
lixiviate
lockian
longroots
Lutry
main discharge jet
manually operated screw
misrecollected
mongrelizations
mottled glaze
mutualinductor
Naturno
Nodi lymphatici prepericardiales
non-central multivariate f-distribution
null set
octovalence
Oresitrophe rupifraga
pactor
pencil of curves of the second order
plagiothecium neckeroideum
potassamide
radiogalaxy
raise one's ugly head
random-access input-output
ravin
re-express
regazzoni
removing of photoresist by plasma
reorienting production
right of issuing notes
SCFS
sell bellow cost
Shauk-kon
Sheinovo
shoulder hanging sprayer
slave-makers
small icosihemidodecahedron
sodium water (heat)exchange
special instruction
static mif
sulfhydryl compound
tashkend ulcer
terebinthina
theoretical line of action
thinners
thyristor converter
total parenteral nutritions
tracheo-
triple bottom
vectograph mosaic
Vigna acuminata
virtual waiting time process
Wunagak
yakobis
yellow-headed catfish
yielding curve