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
2-CHLOROBENZYLAMINE
abandonate
allowable impact load
amphibianlike
barbey
barbier
benzisoxazoles
better-tasting
BKdusty pink
booking commission
bruderrat
butt joint welder
cardiac ventricle
caribbean subregion
catarrhal dyspepsia
christenly
circular flow of economy
class lists
clientela
contracted domain
Corypha
cronak method
cryptophialoidea secunda
deed registration fee
deflowereth
delay in payment
diogenes tumidus
dipping structure
dissidently
eastermost
endoscopic cold light source
ethynylbenzyl carbamate
eutelolecithal
exergonic
false-zero test
five-channel scanning radiometer
frost hygrometer
fug us
gel swelling
gingival border
hoale
i-deled
ice-shelves
icodextrin
incremental speed governing droop
insaner
internal spermatic veins
Ipililo
Johnstonebridge
joint operating procedure
ketoic
legal argument
life-holy
liquid scintillator detector
list-directed input/output statement
litmouse
Luconge
lynch-pins
mellow-soil plow
mentorlike
MEV, MeV, Mev, mev
myelomeningitis
Napicladium asteroma
nebularia contracta
neutron superfluidity
Nittendorf
ole-db
palpebral edema of the newborn
Penguin Beach
percentage of twist shrinkage
petrolisthes obtusifrons
primary cutaneous cryptococcosis
pronounces
propulsion parameter
Prügy
radioactive cemetery
radiomuscular
refollows
registry offices
relay return spring
roll-off area
RTTIs
sampling apparatus scattering area
so also do
space mark
spring swench
steinwachs
stokes' law of settling
tactical command ship
tangent-cone method
target domain
taxi pattern
thiosemicarbazone isonicotinaldehyde
track servo mechanism
trash boom
triaster egg
triple-digit
upright engine
video envelope
wash place
wideband coating
XIPHOSTOMIDAE