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
activating
aelotropic
agamo-
air jet hopper feeder
algebraic functor
Amitin
antiosteogenic
bleches
butyric acid methyl ester
carbolated
card carditioner
Chongup
chromodoridids
clock oil
cross growth
cusped profile
decagram (me)
direct-driven supply pump
dog-carts
economic-growth
elastic mass
electrocardio
emergency nursing
environmental monitoring information network
equivalent norms
erythrorrhexis
Euquinina
explosive-detection
ferrodistortions
filtrable virus
four-bladeds
general clerical test
go straight to
heftiness
hefty bag
hierarchical multiprogramming
hussar monkey
hydraulic efficiency propeller
indelerminate
interbases
kafenions
Kenya
larders
let sb in for trouble
lockstitch blindstitch
lofting irons
loss probability
maaloy
maculovesicular
maistrie
maximum activity
milk wagons
myrcenyl
non maneuverable
Nueva Helvecia
nut-roll
on ... hands
opals
outguessing
oxidation of lubricating oil
PDP-6
per segment
polyplexes
rauwolfia alkaloids
RDC (remote data collection)
reactive-power control
release insuring valve
repeat directive
reproduction of domestic animals
rhingylls
rotation subject index
sand grape
saturater
sewage sludge disposal
sir alexander mackenzies
smoothy
solari-
special 'a' board
stand-by letdown valve
stovetop
sublepton
submarine-fleet reactor
subordinate activation
sucrose esters of fatty acids
supercilia (sing. lrim)
Tandern
tension adjusting gear
therizinosaurian
thermal equipment
time division multiplex communication
to labour under a delusion misunderstanding
total measuring device error
trapped-air process
trithing
unadditioned
underslung charger
vacuum passage
vertical batch plant
water table
whiteglowing
yeastless
yoav