时间:2018-12-02 作者:英语课 分类:英文语法词汇


英语课

   1、一般现在时的功能


  (1)表示事物或人物的特征、状态。如:The sky is blue.天空是蓝色的。
  (2)表示经常性或习惯性的动作。如:I get up at six every day.我每天六点起床。
  (3)表示客观现实。如:The earth 2 goes around the sun.地球绕着太阳转。
  2、一般现在时的构成
  (1) be动词:主语+be(am,is,are)+其它。如:
  I am a boy.我是一个男孩。
  (2)行为动词:主语+行为动词(+其它)。如:
  We study English.我们学习英语。
  当主语为第三人称单数(he, she,it)时,要在动词后加"-s"或"-es"。如:Mary likes Chinese.玛丽喜欢汉语。
  3、一般现在时的变化
  (1) be动词的变化。
  否定句:主语+ be + not +其它。
  如:He is not a worker.他不是工人。
  一般疑问句:Be +主语+其它。
  如:-Are you a student?
  -Yes. I am. / No, I'm not.
  特殊疑问句:疑问词+一般疑问句。如:Where is my bike?
  (2)行为动词的变化。
  否定句:主语+ don't( doesn't ) +动词原形(+其它)。如:
  I don't like bread.
  当主语为第三人称单数时,要用doesn't构成否定句。如:
  He doesn't often play.
  一般疑问句:Do( Does ) +主语+动词原形+其它。如:
  - Do you often play football?
  - Yes, I do. / No, I don't.
  当主语为第三人称单数时,要用does构成一般疑问句。如:
  - Does she go to work by bike?
  - Yes, she does. / No, she doesn't.
  特殊疑问句:疑问词+一般疑问句。如:How does your father go to work?
  4、动词+s的变化规则
  (1)一般情况下,直接加-s,如:cook-cooks, milk-milks
  (2)以s. x 1. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes
  (3)以"辅音字母+y"结尾,变y为i, 再加-es,如:study-studies

1 x
n.字母x,罗马数字10adj.X形的,X级的(电影等),第二十四的
  • The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx. x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。
  • The chest X-rays showed moderate enlargement of the heart. 胸部X光片显示出心脏稍有扩大。 来自《简明英汉词典》
2 earth
n.陆地;大地;地球
  • The earth moves round the sun.地球绕着太阳转。
  • Spring returns to the earth.大地回春。
标签: 英语语法
学英语单词
adposition
amorph
APRAC
Arbed lance carbon injection process
assistive exercise
Atmis
aukwardness
basse dances
binophthalmoscope
bosley
boundary layer control device
brisked up
Bromus pectinatus
bulldog rat
Calclamnidae
carinarias
carpet bowls
cellulose butyrate fibre
chemically modified rubber
chlorosomes
clock of automat
coal-bearings
Communist Manifesto
comptroller-general
contact engaging and separating force
Coqueiros
cultural technique
cutter-and-reamer grinder
decorative materials
dentes caduci
dischevele
eye bit
fertile branch
get up with it
gold paint
gold pegged currency
golfeches
gradient series factor
haggerties
harvest mice
have no time to spare
heavy shower
heavy-traffic road
heeling resistance
Heinrich Julius
hemmorhoide
henry clay fricks
indenter
insulated interest
interanneal
interval vector valued function
Kiambere Res.
labor liquidity
light probe
mahonia confusa sprague
malpractitioner
master characteristics
mended
missing part
money manager
monitor lizards
mottu
mouse fibroblast 3T3
noffsinger
obsolescence charge
Olaszliszka
optical electron
pappyshow
pick someone up
policy broker
postgraduate certificate of education
quill pen
replenishment rate
restricken
rhizines
securities sale
Serratia rubida
Shi'itized
side cutting edge angle
sizing agent
slip roads
slowmotion hoist
sticky-back
sufficienty
suprascapular ligament
technical white oil
three-storeys
tube tooth
Uncle Joe
uranium enriching plant
us host
value of salvaged materials
varanidaes
verdazulene
voltage comparison encoding
volume graph
waymond
wig-makers
wild's evaporimeter
wing tip aileron
Xerochrysum bracteatum
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