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
absolute sound sensation
abu sukhayr
act instituting the counterclaim
agricultural disposal
aligned-grid tube
aluminate cathode
ameliorating waste
antaramian
Antri
aretalogies
Argelander method
back out routine
Bart-Pumphrey syndrome
biglin
bipeltate
both-way
builder's risk
bus rapid transit
channel charging
climatography
cold mix paving mixture
conoduramine
corn spurreys
coupling value
crummier
Desglucotransvaaline
diesel engine generator
electric-field lamp
endosporium
ensilage fermentation
equipment failure
ethoxybenzoin
F-100
fan window
filter rod forming machine
fluidizing point
foam filled tyre
formal style
ganymedes
general method
ground someone in something
gynolatrous
hamon pair
Hastings Sands group
hellos
hemautograph
heterogeneous computing user
hold the course
housegirls
insurance premium
isaac bashevis singers
Katsina
key fill gun
lanoxins
lateral incaving
Lauragais
leveling line
local fire
main body cover
medial moraine
metaspas
mmrc
modifyien V-thread
Mullins Harb.
multiplier factor
multistage deaerator
one-fleshes
one-plus-one address
optically pumped laser
permanent-magnet dynamic loudspeaker
philanthropic school
photocatalytic degradation
photosensitive relay
phototoxicities
polyspermous fruit
poroscopy
pseudotellarinoside
Punjab Himalayas
real circuit
relative value of gold and silver
robaire
safety radio certificate
sample invoice
scarlet sage
seal by metallic delta gasket
septum atrioventriculare
sitalina latissima
solvent loss
spiralium
spring and lever-loaded valve
substance of property
super-heat-resisting material
Taro, Fiume
thow point
unargued
unbefool
ventral tegmental areas
verminosis
vertical zonation
weak acid solution
wedge-tailed eagles
written declaration of war