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
.vir
after a few days
aggregated filter
amine solvent
asthma Pott's
boces
Bynoe R.
carcinomatous myelopathy
chappy
chiliarchies
clemenceaux
closed-layout wind tunnel
Cold Harbor
collection variable
command line interfaces
commodity price ratio acissors
course schedule
cross base joint
cystic goiter
cystis degenerationis
Desmodiinae
dismortgage
dressed ore
drill-stem
drum scanner
electrostatic electrograph
elevator-ladder dredger
enamel septum
envolved
Erik the Red
error expected
father-of-six
filtration of water
flexible chain polymer
flowers of speech
foliot
food grade
fornoch
galena detector
GBY
getter film
grating aperture
heptafluoroniobate
high-moisture grain silage
HRLSD
husker with hydraulic roll-engagement
I vote
idazoxan
inorder traversal
inter electrode
kempen
kielinger
Kong the Master
lapsus pilorum
li'l' ol'
light-off
mccaysville
mean life between failures
megabladder
mining subsidence
mitoflashes
mud-water separater
murrhines
neottia asiatica ohrii
non-loss air condenser
north star states
np product
numerical stability
Nuvanol N
Object Management Group
pancretitis
pandall
petabits
physical twins
planing work
plasma diagnostic technique
polydactylus sextarius
polyethylene solid insulated cord
precision leveler
Pseudocampylite
puerarias
Punan
reasons with
rerecommended
rescue equipment locker
right of independent trial
rocket bases
secondary outlet nozzle
sewagetreatment
smoothness of lines
solution salt B
stellation
swirl vane
the face of the earth
throat
thyratron inverter
to get people
tool profile
torontonians
total oxides of nitrogen
wave-number domain
without cessation