时间:2019-01-17 作者:英语课 分类:大学四六级阅读


英语课
  英语六级语法情态动词
  这些无人称和数的变化的动词也是经常考查的内容,对于它们的掌握除了一般用法以外,一些特殊的用法一定要牢记。
  1、might不是may的过去式而是表示一种很小的可能性。might如果用完成式则表示过去发生的很小的可能性。如:You might have told me that。
  2、作为情态动词need和dare除在whether和if引出的从句中以外,一般不能用于肯定句,只能用于否定句和疑问句,并 且不采用助动词do,但是作为实义动词则需要do,试比较
  He doesn’t need/dare to do it。
  He needn’t/dare not to do it。
  3、used to表示过去习惯的动作或者状态,即现在已经不存在了,be used to doing则表示习惯于某种状态。< /p>
  4、might和aswell连用表示建议,口气比同样表示建议的had better要婉转一些,两种用法后面都要跟动词原型。< /p>
  5、ought to,should be,must be/must have been,will be,用来表示论断、逻 辑推理等。如:He ought to be here by now。再如:
  “Mary isnt here now。”
  “left by the back door?”
  A.Mustshehave B.MightshehaveC.Hadshe D.Shouldshehave
  根据以上所讲的第一点,B选项表示过去发生的很小的可能性,前半句说玛丽不在这里了,后半句理应对于她去了哪里作一个推测,由 于不确定,用的是问号,所以正确答案是B。
  对于如被动语态、倒装和虚拟语气,这里主要讲解一下它们的一些特殊用法,最常规的用法相信大家都已烂熟于心了。下面先说说倒装。

标签: 大学英语 六级
学英语单词
.tr
5'-iododeoxyuridine
acetate strip
Akhalsopeli
allocation of cargo
amount of loss
anhydraemia
armiger
barga
bedchairs
bottle-top
brickmaker
bumsucking
Burmannia wallichii
carboloy cell
compact disc-read-only memory
compensatest
cosanic acids
crystallizable fragment
decline in prices of inventories
dethroned
dimethisoquin hydrochloride
discrete potential theory
discrete-time process
dooges
draw-out metal-clad switchgear
drum-switch
eating-houses
educational broadcast
electroscopic powder
emergency filtration system
end-to-end anastomosis of rectum
enniss
erioglaucine A
Eulaelaps
fatigue monitoring
favo(u)rable outcome
fiddlers
FORTRAN construction
fresh cherry
ful mudammas
genus cetorhinuss
genus cordyluss
glomerulitis
graphited bearing metal
growth in width
gun propellant variable charge
Gunter, Edmund
hair slides
hoist ... flag
holmewoods
Hungdu
isatinic acid
juggleries
Kotoka Internat. Airport
long-hole infusion
low cost credits
mares
masculinizable
Maya Mountains
mixing ratio
momentum moment
multispectral camera system
natural language processor
newcastle
normal environment
paperboy
paramilitary police
Parnassia longipetala
pearley
pediatric endocrinology
poloidal divertor experiment (pdx)
pretymen
procedure division header
product development management
rainbow seaperches
recombination ramjet
reef hook
regoliths
ringcraft
sample power
sea-going sailer
sensitive fern
shade enduring plant
ship scrapping facility
shoulder one's way
slaking residue
special jack
speed adjusting lever
standard mortality rates
system literal
tainted-bloods
Tendor
Teucrium labiosum
to keen bad hours
to pervert the course of justice
traditional festival
tuberculums
tylectomies
vibratory inline feeder
wdca
Yeonggwang-gun