时间:2019-01-16 作者:英语课 分类:英文语法词汇


英语课

   1. 现在完成时以现在时间为参照点,表示在“现在”以前完成的动作或持续到“现在”的状态;


  2. 过去完成时则以过去时间为参照点,表示在“过去”某一时间以前发生的动作或持续到“过去”某一时间的状态;
  3. 将来完成时则以将来时间为参照点,表示在“将来”某一时间为止已经完成的动作或持续到“将来”某一时间的状态。
  请看例句:
  He has finished writing his novel. 他已写完了他的小说。
  He had finished writing his novel by the end of last year. 去年年底他就写完他的小说。
  He will have finished writing his novel by the end of next year. 到明年年底他就会写完他的小说了。
  与一般现在时代替一般将来时一样,在表示时间或者条件的状语从句,通常要用现在完成时来表示将来完成时,而不能直接使用将来完成时:
  I will go with you when I have finished my work. 等我完成工作之后我就同你去。
  若不强调动作的完成(且不至于引起歧义),有时也可用一般现在时:
  I will go with you when I finish my work. 我完成工作后就同你去。

标签: 现在完成时
学英语单词
a20 handler
accompanying material
adansonia
advance and return movement
aprobarbital
asymmetrical test
B-24
Bajil
basingers
biounavailable
Bis-(isopropylamido)
bora
bowhunts
carbonated waters
change in par value
clerofascist
coastdown time
connemara heaths
consistency of coefficients of correlation
core recovery
corruptionist
creep camber
cymbidium actum ridl var. vernale mak.
dehorting
eat someone's head off
electromagnetic-type meter
Endogonaceae
establishments
exokernels
extract of scopolia
family Tenthredinidae
flagitates
Friedrich Gottlieb Klopstock
fundamental measure
gas blow pipe (bellows blow pipe)
gelotolepsy
giver-on
gumptionless
hectometric wave
hiyashi
holding period yield
hot and heavy
hyperdeformations
hypererotism
hypersaturated
keatings
lockup valve
Microsoft Windows Messenger
Mitterndorf
money-supply
multitheater
no time to delay
note value
oil-pricest
ol? (spain)
one may whistle for it
out of heart with
outside firebox sheet
parallel-flow heat exchanger
payable at par
Peano curve
pectus
pentynoic acid
perikyma
phenyl-pyruvic acid
phyllosticta abutilonis p.henn
picture attribute
Pitcairnese
postoutbreak
powdered cation exchange resin
pull a point
radio-telemetering
Raguel
redflag
relational database language
ribandism
sampling of particulate matter
semaphorins
silicobenzoic acid
sodium fluoroberyllate
space-alien
special elections
star astronomy
sulphorylase
summarizer
supai
surface circulation
surrender clause
tarletons
TCCF
telgrafo
thermoelectron tube
transport documents
two-step heat treatment
unmustered
venezolano
weaponization
whiddens
wire puller
XRPM
yapoks
Zomax