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
a good sire
abrasions
adiponecrosis
alkylaryl sulfomates
assembled watch
Backhousia
ballast regulator
bananas on bananas
Beltra, L.
box pattern
boxalls
Buvuma Chan.
cancellation network
card dialer
castel
chon
coarse adjustment pinion
cold rupture
colititer colititre
companion robot
conoscopy
crystallographic texture
Cyelopenol
D-50
deconcocting
dezionize
diploastrea heliopora
docucolor
eccrine-pilar angiomatous nevus
electrical insulating board
externalises
exthecal lamella
fight together
fire-resistive material
flavo(u)ring substance
french clean
functionalization in purchasing
gravity lubrication
guaiacamphol
Gymnorhina tibicen
hiatus
hole milling
homing relay
IYHN
jam with
jazzheads
large computer
Ledaig Point
lefthandednesses
lutetium oxide
machine idle time lost
manu
measurement of train speed
mental sternal adhesion
monarthritis
myrdals
Māch Kowr
Ngajira
non concurrent insurance
not give a tinker's damn
omnibus bill
optical hologrammetry
paludes
pelagian
piperilate
pirates of the caribbean
plunky
postbankruptcy
pressurized construction
Pusztamérges
quickbuck
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reverse sweep
reversed carnot cycle
Ringwood
rocket thrust chamber
rotoinvertion axis
runout table
safety performance
semi-permanent set
Semliki River
Shrirampur
slayee
soundtracked
spirit of Mindererus
spot adjustment
string oriented symbolic language
synchytrium endobioticum(shilbersky)percival
taken the chill off
tandem brush
tendino-
term premium
that's your sort
thermod
three electrode tube
toxicomanie
wall
ward inspection
water mill
water-soluble polymer
weathering disintegration
Wise-up