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
Actinostemma lobatum
Adenophora petiolata
albuminurophobia
alethic logic
alignment of channel
Alxa Plateau
anti-radar overlay
arithmetical predicate
badr
baryt biotite
basic operator control ssp
benzenesulfinic acid
Boników
broad-horn
calcium dihydrogen phosphate
Chindong
classification criteria
clock reference
closed court
comet
comparative immunity
compression refrigerating machine
condition pseudo variable
control loop
critical crack depth
crosspoint switching matrix
D. D.
disjunctive normal form
disk-drives
distributive algebra
duodecuple scale
electrochemical factor
entameba
entropy fluctuation
entrusting
epignathus
freecycles
funninesses
Galium
genus feliss
geopotential foot
geraiss
get off the bus
googlies
greycing
hypural
industrial-relation court
infs
intelligence communication
ion carburizing vacuum furnace
it seems that
Judish
kenston
ketazine
kethen
merchandise ledger clerk
mill slurry
movable rubber belt conveyor
non-impact pneumatic screwdriver
north channels
occassional
out-fence
phosphatidyl phosphoglycerol
pollinating period
pre investment studies
prev.
radiation surveillance capsule
reide
retronasalis
sensitive price
shate
short arc reduction method
short slot
signes
sinsigns
size of settlement
somesthetic path
spiral slot
street intersection
take a stab at
temperate warm zone
template rnas
theory of curves
thethy
third party practice
trad pub
train chart
Trigonotis omeiensis
twentieth man
us billboard
uses and trusts
versal
vitaminB4
water performance test
weber-fechner
wild sweet pea
woodwasps
Wychavon
XSL-FO
Yaco
yearly load factor
zooxanthellae