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
3-penten-2-one
alkaline semichemical pulp
anode process
antimonsoons
ask a favor of sb
Aspalathus linearis
axiopulpal
Barciany
be chilled to the bone
be put under arrest
Beata, I.
binary countdown protocol
cable drum table
cast-in-place cantilever construction
centroceratids
chkilis
comprador note
computer-aided development
cyclegram
direct-current meter
donarite
drainage ditches
engine-hand
error control command
euarthropods
flare connection
grignaffini
Göynük Deresi
H.k.
hand-cutting
heat hardening
henri pitots
heterotropy
hot duct
hydropyrrolation
hydrosamarskite
income tax
intense field
international classification of diseases(icd)
iridaceous
john-son
karpis
lecture notes
lengthwise oscillations
leptsthermal
library table
lonely planet
loose-laid tiles
low bed semitrailer
Mainini
mainpast
maximum ground contact pressure
message queue data set
methyl p-aminobenzoate
microwave stripline
minimum graph
monito del monte
mosaicproteins
My Lai
octavians
old world chats
osteomiosis
palaeotypal rock
pannary
plastic base
plastic failure criterion
pontimete
postcolonial anarchism
posterior cricoarytenoid ligament
predecision
Prince Charles
pro-carcinogens
pull chains
queue linkage long-word
rami internus nervi accessorii
range of regulation
rear-engined
rhc
right/left
savo(u)ry flavo(u)r
Scrophularia heucheriiflora
semi-peak lapel
shrinkage resistance
SLIs
snakeboarding
soluble-RNA
spikemosses
spur track
sputtering system
steam bath-room
strippable deposit
symbol-worships
thumb index cleft
time-stage curve
tower silo unloader
trichoscopy
tufting machine
under covert
ureteroscope
velocity shear
Vicat softening point
water frame