时间:2019-02-06 作者:英语课 分类:英文语法词汇


英语课

   be动词(am、is、are)+not、


  情态动词can+ not、
  助动词(do、does) + not
  如何将一个肯定的陈述句改为否定句:
  1、看句中有无be动词,如有,直接在be动词后+ not。
  2、看句中有无情态动词,如有,直接在情态动词后+ not。
  3、如上述二者都没有,就应用助动词+ not。分四个步骤:
  (1)肯定陈述句中本来是没有助动词的,要加上去,位置在主语(某人或某物)后,动词前。
  (2)确定助动词用do、does,根据句中动词,动词是原形的助动词就用do,动词是第三人称单数的助动词就用does,
  (3)在助动词后加not。
  (4)原句中动词假如发生变化就要恢复成原形。
  强调一点,有some的要考虑是否要用any。
  be 的用法口诀
  我用am,你用are,is连着他,她,它;
  单数名词用is,复数名词全用are。
  变疑问,往前提,句末问号莫丢弃。
  变否定,更容易,be后not莫忘记。
  疑问否定任你变,句首大写莫迟疑。
  be动词的用法:be (be/is/are/am/was/were)

标签: Be动词
学英语单词
advanced norm
aerospace ground equipment
afferent vagal impulse
anxiety-inducing
Arapey
Atacamian
axiomatic
back-blasts
barber's rash
barkeeping
barrow - in - furness
basic non-feasible solution
be off the scent
bit her
boundary value function
butchery trade
Cervantes Saavedra
chorio-allantois
chuck norris
cigar lighter
coteaching
crevalle
cutover areaa (area where timber has been cut)
cutter-lifter
Delesan
dicoelous
discolour
dualistic economy
electromechanical interlock
epidendroid
excess of power
fern-leaf crystallization of cervical mucus
flanged bottom
foamite system
four squared tool
free electrolyte
french capitals
frugiperdas
gabel
ganguli
generalized heat capacity correction
getting in on
grinding balls
horns of dilemma
hot stock treatment
if need require
incorporated bar
infotainment
internal transactions
intra-frame compression
law in action
leukotome
leveques
like sheep
load-fund
logifications
long hundredweight
Long Islander
lords spirituals
Manjeshwar
marking crayon
martnette
methylergometrine
mild alloy
money stone
Moualo
New Jerusalem
new products monopoly
nonattendant
octa-klor
One Laptop Per Child
open hearth block
P electron
phenyl phosphite
phosphate ion
pro-vitrain
process address space
Przewaquinone
pulse unit
register of shares
retrobulbar hemorrhage
Saxifraga pardanthina
schizocytes
shoring ups
silicate industry
simple/duplex modem
single event effect
sinuhe
superscribing
supersoap
symcox
thinking-box
tunnel drivage
twh
undistributed middle term
venta r.
Wismutantimon
Yelenovka
zsuzsas