时间:2019-02-07 作者:英语课 分类:英文语法词汇


英语课

 现在进行时的基本用法:
 a. 表示现在( 指说话人说话时) 正在发生的事情。
   We are waiting for you.
 b. 习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。
   Mr. Green is writing another novel. 
   (说话时并未在写,只处于写作的状态。)
   She is learning piano under Mr. Smith.
 c. 表示渐变的动词有:get, grow, become, turn, run, go, begin等。
   The leaves are turning red.
   It's getting warmer and warmer.
 d. 与always, constantly, forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩。
   You are always changing your mind.

典型例题
  My dictionary ___, I have looked for it everywhere but still___ it. 
 A. has lost, don't find   B. is missing, don't find C. has lost, haven't found  D. is missing, haven't found.  
  答案D. 前句是一个仍在持续的状态,应用进行时,由于没有找到,其影响仍然存在,应用完成时,瞬间动词用于否定式时可用于完成时。

学英语单词
5-NT
active investment
allintext
amoks
annoyment
annular wire
basic problem decomposition method
battery-saving
beguard
biostatistical investigation
box type piston
buchananii
Buk.
business benefit
capital contribution in excess of par value
cast end ring
circuit breaker capacitor
cockatoos
combination plane
commodity prices
crataegus coccinea molliss
dactylaria cannae
decarburised
defo-plasticity
dermatograph test
Ding-an-sich
egg-shell gloss
Ferberized
First Monday in October
fitting allowance
flesh-fly
forward estimation
Gaelicness
Gaullism
genus Dicentra
geographical relics
Godia Cr.
Helbah
Hermit of St.Augustine
holderon
hospitalizing
host remote node entry system
hydrocephaly
hypergonadism
iliopecptineal eminence
Internal hard disk
irreversible control
joint fissure
junction transistor circuit
leave a bad taste in one's mouth
leg extensions
levelled at
lingner
locomotive driver
magnetic helicity
Malpighian layer
mangona
markdown cancellation
Mengerian
metamediary
migration of the double bond
non-tariff company
normal identifier
one-half
Ophichthus
panendoscope
panthea
peacock
penthoused
photoacoustic microscope
physical facility
portable clearing saw
post-hepatic
processor pipeline
production limit
prototype grammar
pteridium aquaticum kuhn
puntillas
queued data set
recalde
relative volatility
ribbed panel
rivellia fusca
Rossellian stage
rudder fin
running direction indicator
semiautomatic pencil
single line-to-ground fault
Sinoproductella
spinae ventosa
spiral pipe
Spunray
St-Vincent, C.
startingly
subclavial
sulfoprotein
sweat-staineds
Tunoshna
Utoeya
valve-seat grinder
vein texture