时间:2018-12-12 作者:英语课 分类:考研英语


英语课

   考研英语阅读要能够正确快速攻克长难句,一是词汇量的积累,二是语法知识的储备。在语法知识中,我们必备的一项技能是找准句子主干,抓住关键信息。怎么才能够找准主干呢?首先我们要找到句子的主语和谓语,一旦把这两种成分找到,整个句子就不攻自破了。本文就来谈一下颇让大家头痛的主干主语寻找方法。


  主语是英语句子中一个主要语法成分,是句子中出现的第一个独立名词或具有名词词性的短语或是句子。主语表示句子描述的是“谁”或“什么”,是谓语的陈述对象,由名词性的成分来充当,说明人物、地方、行为、事件、事实等。下面我们通过从主语的形式上来讲一下如何认定主语。
  英语中的主语是独立的名词性质的词或短语,除了名词和代词之外,名词性的成分还包括:
  (一)the+形容词,表示某一类的人或事物,如the rich, 表示富人。
  (二)动词的非谓语形式(不定式或动名词)可起名词作用。
  1、不定式作主语
  (1)当不定式作主语时,如果较短,可直接出现在主语位置。
  (2)如果不定式充当的主语较长而谓语较短时,常用形式主语“it”放在谓语之前,而把真正的不定式主语放在句子后面。如:It is my duty to take care of these kids.
  (3)有时,不定式的前面可以有一个连接词、连接代词或连接副词(包括whether, what, which, whom, where, when, how)。如:
  Where/When/How/Who to prepare the dinner is not decided 1 yet.
  2、动名词作主语
  动名词相当于一个名词,可以充当句子主语。如:Being a man has always been dangerous.
  还有一种情况,当动名词有自己的逻辑主语时,其前加上一个名词或代词的所有格,构成动名词的复合结构(这时,名词或代词的所有格做动名词的逻辑主语)。动名词的复合结构也可以在句中作主语。如:
  Everyone’s being the same in survival and number of offspring means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes.
  (三)主语从句
  句子也可以起名词作用,在句子中充当主语,形成主语从句。判断主语从句时,可先找到句子的谓语,谓语前面的从句就叫做主语从句。如果主语从句较长,而谓语动词比较短,也可以借助形式主语it,主语从句放在谓语后面。

1 decided
adj.决定了的,坚决的;明显的,明确的
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
标签: 长难句
学英语单词
abrielle
actual measurement on the drawing
Ailanthus Desf.
air-sucking water ejector
albert hall
algebraic cofactor
aminoconanene
arnolds cove
assignment priority
bacony degeneration
basic subsystem module
Brazey
bubble separation(techinque)
buproprion
chain base period
chalasia
Chrome OS
comparative utility
costmaries
courbed
cross nerve
difenolan
discordant injection(transgressive intrusion)
dual system locomotive
elinac
end place
face recognitions
finite difference equation model
flashing of a dynamo
Fortezza
free of damage absolutely
funboy
furrey
Ghats
gouri
hand reamer
harzia verrucosa
hay-jack
hotmelts
hydrogen gas cylinder
hydroxy stearate
igneous accumulate
improved crown grafting
impurple
intermedian cubital vein
Langoon
leucospis japonica
Leyden phial
Longdan Xiegan Wan
magnesium pyrophosphate
medium steels
membrane permeability
moonshiners
morphometrically
myeloangiography
new mercantilism
normally closed
Old Man Jenkins
one-idead
Open bracket
osteosis cutis
partial solid solution
pejo
peperinos
phonetised
ponomaryov
potamogetons
preemption capability
profitable
proximity problem
pub-crawl
pump operated sprayer
pyrophones
radium jaw
ray displacement
reconnaissance balloon
referrent
retaining screw
Sabinov
saltation ash
servility
set of complex features
sheet-musics
Shore hardness number
sidewhisker
sled connector
slop room
speed to pressure transducer
stat padder
straight-reamer
Sukhoy Log
sulfapyridine sodium
superaudio
tassinari
TCA
to bob
topograghy
twisted form
uptails
vake
water borne disease
zerofuel weight