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
acadimician
acousto-optic Q-switching
Arrée, Monts d'
basic sediment and water
beat voltage
book of records
bremen
broken course
Bygdeträsk
calcium forniate
charging set
circumvolved
Cirsium bracteiferum
coastal accretion
cocave cover
COLOCONGRIDAE
country music
cryogenic bolometer
Curcuma kwangsiensis
deep slot type rotor
diametral vibration
domain closed-loop pole
eco-defense
employment system
eventless
extract product
false social value theory
Fulham china
fused transistor
genus araneas
gingerin
haoma
hexanephric
Homeric Greek
hubei province
hydnaceaes
hydrofluosilicic acids
hydrogey annealing
irregular menstruation hysteroptosis
joint of belt
ketab
Khutora
knitted sweater
knot formation theory
lap-joint
Lappula shanhsiensis
lateral image
less-celebrated
living arrangements
low speed heavy cut
lower blood pressure
macroeconomic theory
man-computer communication
Mangalorean
Mara Reg.
mergansers
metaculture
methyltrimethylolmethane
Molina, Luis de
momlvs
moodscape
multi-entry pulse converter system
nachmen
non-erasable stack automaton
oo-ah
opitmal nutrition
Ornithochilus
overall heat transfer
paper-pattern image
parallel cable
pesoized
power sunroof
pressure tide gauge
propel
push a face
reciprocating air compressor
reouthfully
reproductive behaviour
retreatisms
rill crater
rutgers-newark
saw-dust
secondary ionization constant
secondary ninth
Sitka National Historical Park
soi transistors
Southwest Pacific Basin
squadding
sudden contact
synthetic shellac
tar-paper
to-find
tolerance number of defects
toothed cutter
triple-a
turriculate, turriculated
ultragravity wave
unagented
uredo moricola sawada
vignal's cell
violastre
wetting combustion method