时间:2019-02-18 作者:英语课 分类:英文语法词汇


英语课

   一、at, on, in


  (A) at表示“在某一时刻,某一时点”。如:
  I get up at 6:00 every day. 我每天6点起床。
  注:at daybreak在黎明;at noon在中午;at night在夜间;at Christmas在圣诞节期间;at the age of five在五岁时。
  (B) on表示“在具体某一天或某天的上、下午”。如:
  I heard a shot 1 on (the morning of ) March 18. 三月十八日(早晨) 我听到一声枪响。
  We don’t have classes on Sunday. 星期天我们不上课。
  (C) in表示“在某世纪、年、季度、月、周”以及泛指的上、下午、晚上。如:
  in the 20th century在20世纪;in 1999在1999年;in winter在冬季;in September在九月;in the morning/afternoon/evening 在上午/下午/晚上。
  二、for, during, through
  (A) for后接“一段时间”,表示某事持续多久,多与完成时连用。如:
  She has been ill for several days. 她已经病了几天了。
  (B) during表示“在……期间”。如:
  I went to France for two weeks during the summer. 夏天我去了法国两个星期。
  (C) through表示“一直……,自始至终”。如:
  They worked hard through the winter. 整个冬天他们都在努力工作。
  三、from, since
  (A) from表示“时间的起点”,可译作“从……”,多用于“from…to/till…”中。如:
  You can come anytime from Monday to Friday. 周一至周五你什么时间来都行。
  (B) since表示“自从……以来(直到现在)”。如:
  He has been away from home since 1973. 他自从1973年就离开了家乡。
  We have known 2 each other since ten years ago. 我们十年前就认识了。
  注意:for和since都常与完成时连用,但for接时间段,since接时间点。如for two hours(持续)两小时;since last week从上周直到现在。
  四、before, by, till, until
  (A) before指“在……之前”,与after相对。如:
  Please come before ten o’clock. 请10点以前来。
  (B) by指“不迟于,到……时为止,在……以前”。如:
  We had learned 3 over 1000 words by the end of last term. 到上学期末为止,我们已经学了1000多个单词了。
  We will have learned 2000 English words by the end of this term. 到本学期结束前,我们将学了两千英语单词了。
  注:by后接过去时间,常与过去完成时连用;by后接将来时间,常与将来完成时连用。
  (C) till (until) “直到……为止”。如:
  You must wait for him till tomorrow. 你必须一直等到他明天。
  注:在肯定句中,till/until必须与延续动词连用;在否定句中,till/until常与非延续性动词连用。如I didn’t go to bed until 12 o’clock. 直到12点我才睡。
  五、after, in, within 4
  (A) after表示“在……之后”,是before的反义词。如:
  He got a cancer and died after a year. 他患了癌症,一年后去世了。
  The meeting will end after 3:00pm. 会议将在下午三点后结束。
  (B) within“在……时间之内”。如:
  I can finish it within an hour. 我不需一小时就可把它做完。
  注:after与in都可表示“在……之后”,但after后可跟时间段,也可跟时间点;而in后必须跟时间段。after既可用于将来时,也可用于过去时,而in只能用于将来时。
  I’ll arrive in an hour. 我一小时后到达。

n.炮弹,射击,射手;v.射击,发出,发芽;vbl.射击,发出,发芽
  • He shot a wild duck.他射中一只野鸭。
  • All the children shot out their hands for the money.所有的孩子突然伸出手来要钱。
adj.大家知道的;知名的,已知的
  • He is a known artist.他是一个知名的艺术家。
  • He is known both as a painter and as a statesman.他是知名的画家及政治家。
adj.有学问的,博学的;learn的过去式和过去分词
  • He went into a rage when he learned about it.他听到这事后勃然大怒。
  • In this little village,he passed for a learned man.在这个小村子里,他被视为有学问的人。
n.内部,里头;adv.在内部,在内心里;prep.在…之内
  • The work must be done within the given time.这个工作必须在规定的时间内完成。
  • Within two weeks,she gained five pounds in weight.两周内她的体重增加了5磅。
标签: 介词
学英语单词
ADDDS
aluminum benzoate
anterieure
anyother item of uncollected credit
aqueous rocks
articuloes
bankss
be caught in a trap
be moved
beam pattern
beaverhead
butter-and-egg
calathian
cedarbrook
chrome plated ring
closed tracheal system
conventional closed cooling loop pump
crownposts
Danisco
desmocranium
Dir. prop.
djadochtatherioids
drama llamas
drinking-up
drygoodss
dust contaminations
effect of termination
epitheliomata
equipment hour
extraembryonic capillary network
fail mask mode
fax-modem
fermentated leaves
flagworm
flooring saw
fluted-wheel
fully-fashioned rib garment
Furnivall, Frederick James
goulard
hand gun loader
head-rests
hereyesterday
hibernation
ingluveosis
ischioperineal
isotope isomer
Jane Wayne syndrome
kbw
klika
large calories
LCCS (large capacity core storage)
lighthouseman
local segment table base
look awful
m'lord
mandibulopharyngeal
microSDHC
millimeter wave frequency conversion
millons
minesweeping
motorized bike
Myzodendraceae
night-scape
non-return to zero invert
non-skid pavement
nutating-disk meter
obsolete drugs
operating-performance income statement
parakeets
pawas
peneplained
pentobarbital sodium
percuriam
permafrowns
pin lock
Pleuromeiales
popu
postvagectomy syndrome
protoxidize
rampele
re-exercise
rubberstra
SCSI II
sealchie
seashield system
stork's bill
T-pipe coupling
talent spotter
textile dermatitis
thermal check light
threadneedle
thrust anemometer
trapezium (or large multangular bone)
tropical marine air (mass)
twinned groove
tyrleis
Verey pistol
vertical collimator
wapperijaw
WenlockianSeries
wood ear
wrine