时间:2019-02-04 作者:英语课 分类:英文语法词汇


英语课

  带to 的情态动词有四个:ought to, have to, used to, be to, 如加上have got to ,(=must), be able to,为六个。它们的疑问,否定形式应予以注意:
  Do they have to pay their bill before the end of the month?
  She didn't use to play tennis before she was fourteen.
  You ought not to have told her all about it.
  Ought he to see a heart specialist 1 at once.?


  ought to 本身作为情态动词使用。其他的词作为实义动词使用,变疑问,否定时,须有do 等助动词协助。

典型例题
 Tom ought not to ___ me your secret, but he meant no harm. 
 A.have told B.tell C.be telling D. having told
 答案A。由于后句为过去时,告诉秘密的动作又发生在其前因,此地应用过去完成时,但它在情态动词 ought to 后,所以用have。





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1
specialist
DvTwt
  
 


n.(医学)专家,专科医生;专家;专业人员


参考例句:





She is a specialist in English.她是一位英语专家。
The peasants looked up to him as a specialist.农民们尊他为专家。













n.(医学)专家,专科医生;专家;专业人员
  • She is a specialist in English.她是一位英语专家。
  • The peasants looked up to him as a specialist.农民们尊他为专家。
学英语单词
A.S.W.
Acroclinium roseum
air pocket stock
ampullary membranous crura
Angela Merici
annorm
antispermatogenic
appreciatory
Articulatae
auditor's report
auxiliary dam
backsheeshed
barrigenol-A1
bisdimethylarsenic oxide
boraces
bronzeworkers
coded arithmetic data
connecting rod alignment fixture
DeepCover
digital frequency meter (dfm)
Dipasic
dotted AND
double six array
double-blind tests
drilling vessel
dropping liquid
dry printing head
Drydenic
dummy fuze
egotropic
energetic encounter
Epimedium platypetalum
explosive sound source
expresses
fashion businesses
filler weld
fuckfriend
full ahead
genus cydonias
growth-enhancing
herniated
hirundines
immunointerventions
irreducible Goppa code
jippo
Jungermanniinae
Karunagapalli
Keiskammapunt
Krisovski's sign
lazy flow
Leontyevo
ligamenta talotibiale anterius
Lobitos
maegbot
magneto-optic(al) memory material
makespan
Mel'nikov integral
mercury pressure
milk sap
mkm.
nervia
OpenHCI
ophiuroids
other optical printers
palmilla
permanent software
phyllosticta malkoffii
physiol.
pitch (of rifling)
postweld heat treatment
productive exploration
proficiency testing
proxy ARP
psilalcis breta rantaizana
put something over on
rufous-winged antshrikes
schizostylis
security statistics
semi-cantilever wing
Semiatycze
septic measles
sharpest image video
Sherlockish
short-laid
stokvels
straight shade
subcritical steam power plant
swapping system
tense line
test-wise
tetanocerid
the gentleman from
thermal convertor
thymier
toluic
uncoupled
us in-
vehicle economic service life
wind-induced response
woolly rhinoceros
wyc
yield band