时间:2019-02-17 作者:英语课 分类:GRE英语


英语课

   和国内学生写文章不一样,美国人的阅读文章中从来都不出现“I think that,in my opinion,as far as I am considered”此类语言做主题句。通常来说主题句有以下两种形式:


  1. 判断句(含情态动词,系动词,正负褒贬词的句子);
  2. 概括文章将来结构。
  比如一个句子:Your minds changed my attitude. 这句话中并没有情态动词和系动词,因此这句话自然不是判断句,也就不是主题句。但只要在这句话中加入一个正负褒贬词,即一个词表明作者的态度或观点的词即是判断句了。比如,Your minds successfully changed my attitude即是判断句了。
  另外,如果一个句子不是判断句,只要它能够概括文章将来结构,及文章后面会从哪几个方面来说明,也是主题句。比如,People are living longer now. 这句话一定不是主题句,而如果这句话是,People are living longer now since the improvement of food condition and the development of medical technology.这句话即是主题句了。因为它概括了文章后面会从哪几个方向来进行说明。
  如果考生在新GRE阅读题中掌握好了主题句判断方法,很多文章便可以很快把握文章的结构框架,帮助后面文章的理解。
  比如一篇文章的开头是,Mycorrhizal fungi 1 infect more plants than do any other fungi and are necessary for many plants to thrive, but they have escaped widespread investigation 2 until recently for two reasons. First, the symbiotic 3 association is so well-balanced that the roots of host plants show no damage even when densely 4 infected. Second, the fungi cannot as yet be cultivated in the absence of a living root.
  第一句是明显的判断句,即为主题句。而主题句也同时概括了文章的将来结构,即会从“M真菌影响力很强”和“M真菌过去由于两个原因没有得到广泛研究”。下面马上看到了first和second,我们即知道这两个很难读懂的句子无非是两个原因使得M真菌没有得到广泛研究而已,具体是哪两个原因,我们几乎可以忽略不读。
  总之,在做新GRE阅读时应该运用一些技巧,这样不仅能提高选对选项的效率,还能节省不少的时间。

n.真菌,霉菌
  • Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
  • The lawn was covered with fungi.草地上到处都是蘑菇。
n.调查,调查研究
  • In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
  • He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。
adj.共栖的,共生的
  • Racing has always had a symbiotic relationship with betting.赛马总是与赌博相挂钩。
  • Engineering completely new symbiotic relationship is obviously not an imminent possibility.筹划完全新的共生关系显然是可能性不大。
ad.密集地;浓厚地
  • A grove of trees shadowed the house densely. 树丛把这幢房子遮蔽得很密实。
  • We passed through miles of densely wooded country. 我们穿过好几英里茂密的林地。
标签: GRE
学英语单词
1-Hexanethiol
a'right
abkhazias
acaulescence
acromelanism
alexandrov
alligator-wrestling
amyl hydrogen sulfate
antidune
array representation
aufklarung
availability time ratio
Backwater Reservoir
bandala
bassen
bis-norbiotin
Bruckberg
bursarship
caloritropism
cerebellums
chemical concentration
chill coil
chord of the diminished seventh
circulation frequency of the data classification
clamping ability
climbing ripple lamination
Composite.
cricketress
cumulative reliability
deciduously
deintegrated
deppei
differential pressure recorder controller
disentrust
domain suffix
double-stage air pump
dubbing room
eemed
endec
excess freight
fatty girl
gallosh
gastown
gastroduodenal plexus
gauge calipers
geography of river transport
Gossypium thurberi
gray copper ore
Harman alkaloid
heads of department (hod)
HEPEX
hesitation period
hit team
hold one's breath
horseshoers
innate behavior
intemperances
ion implantation doping
Japanese character typewriter
kenhill
lengthful
Lisozymen
location-specific
mainshaft thrust cap
maintenance directory
mean of velocity fluctuations
merchistons
naevi epithelimoatosi cystici
Non-taperness
nonacidic
nonprinting character
nonrigid airship
Nothopanax delavayi
numeric entry
pelleted forage
pendant superheater
phenaline
prisal
progressive derivative
Puccinellia pamirica
Puccinia heterospora
range key
rehanging
representation symbol
rubbish chute
safeguard circuit
savasia
seed core
Ship Reporting Systems
skin vision
sub.
substitute community
superload
Syntopherol
tapelines
TISAB
tommy-rot
tritordeum
usuary
variable chord wing
water thermometer
world meterological organization