时间:2019-02-04 作者:英语课 分类:英文语法词汇


英语课
) 经常性或习惯性的动作,常与表示频腮度的时间状语连用。
  时间状语: every…, sometimes, at…, on Sunday
  I leave home for school at 7 every morning.

2) 客观真理,客观存在,科学事实。
  The earth moves around the sun.
  Shanghai lies in the east of China.
3) 表示格言或警句中。
  Pride goes before a fall. 骄者必败。

  注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。
例:Columbus proved that the earth is round..

4) 现在时刻的状态、能力、性格、个性。
  I don't want so much.
  Ann Wang writes good English but does not speak well.
比较:Now I put the sugar in the cup.
   I am doing my homework now.

  第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作。再如:Now watch me, I switch 1 on the current 2 and stand back. 第二句中的now是进行时的标志,表示正在进行的动作的客观状况,所以后句用一般现在时。

n.开关,电闸,转换,软枝;vt.转变,切换,摆动,转换,使转轨;vi.转换,变换,摆动
  • The switch on the wall was beyond the baby's reach.墙上的开关小孩子是够不到的。
  • There's been a switch in our plans.我们的计划改变了。
n.涌流,趋势,电流,水流,气流;adj.当前的,通用的,流通的,现在的,草写的,最近的
  • Electric current is often powerful enough to kill a man.电流常强得足以致命。
  • There is a story about her in the current number.最近一期上有关于她的故事。
学英语单词
active laser substance
AIPE
allylic migration
alternate derivative
american personnel and guidance association
Anaspidacea
anisotopic sheet
argonautids
array feed network
available phosphorus
backplastered
bacteriologist
beddoe
bioorganic
bunhio
c-pac
Carampicillin
communication systems routing
controlled flow vehicle
cost curve
creepeth
ctl time code
damage potential
declarative knowledge representation
deflaker
depolymerisations
ecosystem type
ecotec
eddress
edge-based stereo
electroelastic constant
ethoxy propane
fast reactor physics
feminist theory
fillister head
fire pipes
food expense
gas amplification factor
go round in circle
groa
hirschi
hydrothermal neck
industrial development bond
inside micrometer calipers
integrated chip
international textural grade
Jacob's taper
job control language (jcl)
John Horne
language file
masaw
meuniera membranacea
modem multiplexer diagnostics
modulated pulse amplifier (mpa)
monoprotonated
mood elevation
mopper
moross
motor running capacitor
mountain gorillas
movable blade water turbine
non-ferrous metals
nonreductive
Number Ten (Downing Street)
nutritional deficiency eczema
old as Methuselah
overrun safety arrestment
para-agglutinin
patamar
pedal stop
Piratucu, R.
plan of work
Pohle air lift pump
polymer photochemistry
radial flow turbo-charger
Ramalhal
rapidly-growings
recessus ileocaecalis superior
reflectivity curve
regeneration under sprout method
rheometer
rolling seam weld
rosin ester
Sangju
scrap and desert
sensory apraxia
serial input-output address
simonizing
slaneys
smokiness
span chisel
spinal demyelination
thirty-day forecast
Tigen
to go ape
turbinata
unpatterned
vaginulas
Vittarieae
wave chart
XO-I
Zhongchong