时间:2019-02-13 作者:英语课 分类:英文语法词汇


英语课

 didn't need to do表示: 过去不必做某事, 事实上也没做。.
 needn't have done表示: 过去不必做某事, 但事实上做了。
 John went to the station with the car to meet Mary, so she didn't need to walk back home. 约翰开车去车站接玛丽,所以她不必步行回家了。
 John went to the station with the car to meet Mary, so she needn't have walked back home. 约翰开车去车站接玛丽,所以她本不必步行回家了。 (Mary步行回家,没有遇上John的车。)

典型例题
 There was 1 plenty 2 of time. She ___.
A. mustn't have hurried  B. couldn't have hurried  C. must not hurry  D. needn't have hurried
 答案D。needn't have done. 意为"本不必",即已经做了某事,而时实际上不必要。
 Mustn't have done 用法不正确,对过去发生的事情进行否定性推断应为couldn't have done, "不可能已经"。 must not do 不可以(用于一般现在时)。






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1
was
bglwv
  
 


v.(is,am的过去式)是,在


参考例句:





He said he was right.他说他是正确的。
He was cold and hungry.他又冷又饿。












2
plenty
EORxi
  
 


adj.充足的,相当多的;n.充足,大量;pron.充分,够多


参考例句:





We have plenty of time to finish the job.我们有充裕的时间完成这项工作。
Plenty of people have come.来了很多人。













v.(is,am的过去式)是,在
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
adj.充足的,相当多的;n.充足,大量;pron.充分,够多
  • We have plenty of time to finish the job.我们有充裕的时间完成这项工作。
  • Plenty of people have come.来了很多人。
学英语单词
(Robaxin)Methocarbamol
a. ophthalmica
aitcs
angular dispersion
antique-dealer
aureolarias
Banteay Chey
be mounted
bichats
bumper jar
butt-chin
cardiac disease in toxemia of pregnancy
cercis likiangensis chun
certificate of beneficial interest
Chang Kuo
changeless
chion-
colega
collie eye anomaly
component truss
comprehensive confirming house shipment policy
congenital retinal fold
contact insertion and withdrawal force
contractualises
deblending
design proposal
desklamps
desksize computer
diffuse choroidal sclerosis
disappear to
downward storke
dynamic discovery
earning related benefit
ensta
entergy
Erypin
essential enzyme
flat-topped ridge
flow dichroism
follower stud
four-legged friends
gailliard
gas seep
goes down the drain
golfdom
heavy tail
high pressure adjusting spring
hollow-point
home reservation
humariaceous
indicating potentiometer
ironless armature
isopia
jet channelling
kirchoff's law
metallocarboxypeptidase
micro-fiche
milky tea
mistaker
moity wool
multiplication of determimants
navigation system
NAVMEDATASERVCEN
neoprene sponge
nine-tracks
nodi lymphatici cervicales anteriores
oftmentioned
on maturity
on roder
osteohalisteresis
outer iteration
output of column
Pahārikhera
paramyoclonus multiplex
pda-based
perrutenate
personal supremacy
photoconductive thermal-plastic polymer material
phyllosticta amorphophalli
picoeukaryotes
plavacridin
polar positioning system
pterolophia lineatipennis
Putnam, Rufus
radioactive pericarditis
reckon sth up
Rhododendron noriakianum
ripeful
scintillatio albescens
self-ionization spectroscopy
stwe
Sulzbach an der Murr
swallow
Taitzehoia
technomic
trophic linkage
vascular glands
Viterbi decoder
vitriate
waltz turn
warns
wide-sense stationary random process