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
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albiduria
alchera
aminohydroxyphenylalanine
ammonia synthesis under medium pressure
ammunition chests
anthosin
attagen
baculere
Balmer band
baseboard
blacksmithshop
blush for sb
Brampton Island
branch track
briny butter
Brusovo
bus controller
cartelisations
Cathari
center of dynamic lift
chromidiosome
Chuyskaya Step'
cinoxolone
commit acts of violence
concentrated couple
consular attestation
cormantine (kormantine upper)
crinch
data channel
decides upon
deuteranomalies
differential equations
discharge regulator
disproportionate dwarfism
dorsal border of uterus
doublebreasted
Duck L.
eblio
Edward Young
ellinger
enamelling clay
eruptives
esourcing
factness
failure reciprocity
faiza
fan-out-free circuit
geometric correction of imagery
gilled tube radiator
Gin Gin
glochidium
gluer
group equation
haupt
highlyselective vagotomy
horizontal cylinder
hydrourterosis
intra-oral film
Kurchatov Seamount
large area electronic display panel
Levyy Il'yak
ludeca
Lyonist
maier
MPCWP
musculi rectus capitis posterior
n protein
oculus uterque
outsaw
outwear
overall cost leadership
parametric downconverter
parisyllabical
Paul Simon
Pericardiopathy
Phanerorhynchidae
phase aberrator
polygon leg
Primula triloba
process input-output channel
quality test procedure
scheib
semi-automatic telephone switchboard
signal intelligence
signal sighting apparatus
slope transmission
soap spot
spin-momentum
St Meinrad
station personnel
stern tow
sublimings
toasting-forks
toe cut
tuplets
turbidimetric apparatus
uncourteousness
up-downs
Wamic
wild hydrangeas
zabernism