时间:2019-03-13 作者:英语课 分类:英文语法词汇


英语课

   介词about用法小议


  1. 表示“大约”,通常用于数字前。如:
  It costs about $10. 这需10美元左右。
  He arrived at about 10 o’clock. 他大约10点钟到达。
  2. 在动词 know, hear, speak 等之后用不用介词 about, 含义有差别。如:
  I have heard about him, but I don’t know him. 我听到过一些关于他的事,但不认识他这个人。
  I’ve heard of him, but I don’t know about him. 我听说过他,但我不知道有关他的情况。
  试比较:
  He knows her. 他认识她。
  He knows of her. 他知道有她这样一个人。
  He knows about her. 他知道有关她的情况。
  3. about和on均可表示“关于”,但about主要指泛泛地或非正式地谈论某事,其谈论的内容也较为普通;而on则指比较有系统地或理论性较强地论述某事,其论述的内容较正式或较严肃。比较:
  He wrote on mathematics 1. 他撰写数学著作。
  He wrote about the school. 他报道有关这所学校的情况。
  It is a book on birds. 那是一本论及鸟类的书。(可能是一本学术著作)
  It is a book about birds. 那是一本关于鸟的书。(可能是一本供小孩看的关于鸟类的故事书)
  4. 注意不要按汉语意思,在一些及物动词后误加介词 about,而在一些不及物动词后该加 about 时却漏加。如:
  他没什么不满吧?
  误:He has nothing to complain, does he?
  正:He has nothing to complain about, does he?
  析:表示抱怨某事时,complain 不及物,其后需接介词 about 或 of 再带名词或代词作宾语。(本句中 about 的逻辑宾语是 nothing)
  我们会尽快讨论此事的。
  误:We'll discuss about it as soon as possible.
  正:We'll discuss it as soon as possible.
  析:discuss(讨论)为及物动词,后接宾语时,无需用介词。类似地,英语说 consider sth, 而不说 consider about sth;可说 doubt sth, 而不说 doubt about sth;可说 explain sth,而不说 explain about sth;可说 report sth,而不说 report about sth;等等。

n.(用作单)数学;(用作单或复)计算(能力)
  • He has come out in front in the study of mathematics.他在数学方面已名列前茅。
  • She is working at a difficult problem in mathematics.她在做一道数学难题。
标签: 介词
学英语单词
Almeida
antiadrenergic drug
Antiguide
antitampering
aphis droserae
assertress
base-maps
be rolling in
bloom blank
braford
chemical and biological agents
cirripectes filamentosus
co-vertical
colliding tablet press
combination of Chinese medicine and Western medicine
compensator gene
crack tip singularity field
dakine
defiance campaign
dendrite morphology
diagnostic output
didymium filter
direct-distance dialling
disseminules
face-contact
flappier
flora and zephyr
four-side planer and moulder
fpv
freudenstein equation
frost hardiness
gastric glands
glaads
Grays Lake National Wildlife Refuge
group demodulation
half snipes
Hamamelidaceae
have a soul above
heterodynes
highly compressed steam
home theater PC
housefires
ideological struggle
independent equation
interlocking time printing
Kahle's solution
knock into the middle of next week
Lanthanotus borneensis
leaf insertion
Levi-Civita tensor
Lignon
liquid dye filter
liquid hydrogen bubble chamber
logical program
Ludwigia adscendens
management unit
marinamycin
mattels
megashachia fulgurifera
mercuiate
Merrion
microspectroscopes
mint stamp
mwcs
non discriminatory
nonaggressively
nozzled
Orshanskiy Rayon
parametric curves
pedal frame
penetration of grease
Perguba
perpendicular shaft
polychromatic fiber
princess-ship
propended
pseudotrisomic
pulsar time transfer system
quartz spring gravimeter
quitline
ritualities
russaw
seasoned salt
selective-serotonin reuptake inhibitor
sine wave clipper
SMDA
sodium-Melilite
spodes
stellar association
straighten sth out
stress fracture of the metatarsals
subnotochord
summary crimes
to be smitten by someone
to stop working
treaty in force
untch
up gradient
uptied
violent disorders
Walter Winchell
zero-base planning and budgeting