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
a class
absolute radiometer
Ajania sericea
aminouridine
analytic structure
atypical child psychosis
average functionality
beaded hairs
borne up
box curing
by favor of
cacaphony
calumniatory
casar
categoriser
chalopyrite
characteristic of summer-heat being scorching-hot
Cheney Res.
closed circuit potential
cold processing and working
computer resource performance management
copecks
cross-price
cross-questionings
deep level
demonstration flight
disc-
disordered action of heart
DjVu
Doussard
endoneural sheath
endowed by nature
external sense and control line
firbas
foreign commission agent
fuel oil delivery pump
functional official
functional transformation
gamasoidosis
gear tooth vernier calliper
genus Fraxinus
Gossa
gravity Baume
gray wedge method
hacking and spreading machine
hardening by itself
heliopause
HEPA filter (high efficiency particulate air filter)
Hollinidae
horsewhip
IDTS
Kcynia
keep ... on
Kulumadau
Lavrova, Bukhta
Li-Po
long blast
loquots
low-gravity oil
lumpish
multiple printing machine
nacks
National Basketball Association
nesidioblast
newly-discovered
nickel-plated double line iron screw hood
nonpressured
nothing in the world
opera-goers
ovarian dysgenesis
pancras
parasite
paternal society
phenylalkylamine alkaloid
pro-independences
pseudo-differential operator
rotator muscle
scalenectomy
shortday plant
shut the window
shuttle-action scraper
soil constraint factor
Solvay, Ernest
solvent extraction-AAS procedure
sowing in patches
spatting
spin moment vector
steering range
stochastic decoder
swamy
swot up on sth
teboursouk (tabursuq)
there-on
tick-note
transistor deterioration
unpessimistic
unthought of
vibrating membrane
vocology
water clear
western equine encephalomyelitis virus
zd