时间:2019-01-16 作者:英语课 分类:英文语法词汇


英语课

   过去完成时由“had + 过去分词”构成,表示在过去某一时刻或某一动作之前发生的动作或状态,句中常用by,before,until,when等词引导时间状语。


  We had built five new buildings by the end of last year.
  过去完成时的被动语态有以下三种形式:
  (1)肯定结构:主语+ had been done +其他成分
  (2)否定结构:主语+ had not been done +其他成分
  (3)疑问句结构:had +主语+ been done +其他成分;
  疑问词+ had +主语+ been done +其他成分
  过去完成时的被动语态常用于以下情况:
  (1)表示过去某一时间以前已经完成的动作,常与by, before等引导的时间状语连用。
  By the time he got to the school, the first period had been finished.
  The classroom hadn't been cleaned before the teacher came.
  How many buildings had been destroyed when the hurricane 1 ended?
  Had the new plan been discussed before the meeting?
  (2)在 told, said, knew, heard, thought等动词之后的宾语从句中,若表示过去某一被动动作时,用过去完成时。
  The said the production costs had been reduced.
  The boy was reminded that his homework had not been handed in.
  The media 2 reported more than 1,000 people had been killed in the earthquake.
  (3)根据语意可以判断出动作先后的被动语态,用过去完成时。
  As the assignment 3 had been done, he went on to search the Internet.
  He did what he had been told to
  另:当从句由 after,before,when或 as soon as引导时,主句和从句都可以用一般过去时。
  When he arrived, he called her.
  They locked the door before they left.

n.飓风,暴风,暴风雨
  • The hurricane destroyed the whole village.飓风把整个村子都毁掉了。
  • A hurricane struck the city.飓风袭击了该城市。
n.(medium的复数)媒体,新闻媒介,传播媒介
  • The local media reported rioting across the country.当地媒体报道了全国范围的骚乱。
  • His latest movie is being hyped up by the media.他新近的电影正被媒体大肆炒作。
n.任务,作业;分配,指定
  • His assignment was to follow the spy.分配给他的工作是跟踪这个间谍。
  • He has got a new assignment.他得到一项新任命。
标签: 过去完成时
学英语单词
acephalemia
ADDAR
agglomeration in space
allowable concentration
anodic current efficiency
atrophia maculosa
audio frequency coil
Ban Pho
barrels per calenday day
bevere
Castanopsis delavayi
cependant
cheval-de-frise
chime in
cincinnal cyme
classification of gravitational erosion
cold hand
combinating vessel
concrete barrow
conversion scales
creatianists
Croydon facelift
cusecs
dispersal error
duplex simultaneous two-way operation
dust loading
echoic word
energized
euphemias
Exzellenzinitiative
falsiness
Famotidin
fascia colli media
feed retainer
financial control
fire pack
fuel can(ning)
genus Mycobacterium
glucosaccharides
Grainal
graphic standards
greasy hair
harroweth
Hemsloh
ideal exhaust velocity
ip authentication
isophenolization
junior lien
Kirkist
Kwadinguso
lane-route
lead sb. a dog's life
less-secure
map sth out
Meidelstetten
mieze
moisture cream
Munningen
non-flame conveyor belt
normative belief
not-error loop
occursions
operating irregularity
opto-electronic modulator
osmiridium alloy
parula warbler
peste des petits ruminants
Petre B.
phase encoder
photomask set
pitting erosion
polyopes lancifolius
practice review
prefer to
protags
rabbitberry
regeneration of electrolyte
reparation commission
sadeq
schafft
seed bed leveler
sequential-access
Shimonoseki
shootless
shurocracy
sleepaholic
soddish
spleen
sponge lead
statistics analysis
styill
subindividual
subsubproblem
suchet
surging pressure
Swertia tetraptera
thermal neutron activation
tri lobe cam
Tumbes, R.(Puyango, R.)
weasel-worded
Wielkopolskie, Województwo
xenopodidaes