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
abnormal termination abort
Acomatacarus major
allantoicase
amoureuse
antifoundational
banausic
bathurst
Blerick
bracket light
car mirror
centre of dispersal
cepheid variables
ceramic DIP
chamazulenogene
chloranilate
circuit tester
coeruleum thymolis
coordiator
copyright infringement
cortex granati
cosyntropin
counter-clockwise angle
court trusts
cover type map
cupressus arizonicas
cylinder band
declaimeth
deener
dense-graded asphalt concrete
Deutzia nanchuanensis
diesel reduction drive
different diameter roll type husker
distribution account of national income
double-occupancy
draw beam
dustbathing
enprisoning
fitted value
fractional digit
gastricisin
georg ohm
goatburger
guinea keets
Herzegowina
high muckety-muck
Hopf mapping
hypoventilating
Ijesa-Tedo
infrahepatic
kerin
macphersonite
matrimony vines
memorialis hirta (bl.) wedd.
metallic hydrogen
milk tanker transporter
miniseriess
misrepresentation of health information
mother-fuckers
mountain-making movement
neon filledtube
Ness, River
objective analysis value
Oosterdijk
opening of the telescope
overall logic
pearl knitting
periaqueduct
policy credibility
polychromatic light
potassium cobalto-nitrite
Potentilla nervosa
powdered vulcanized rubber
Przysucha
recovery process
red flower
rediverted
relapseth
retroarcs
rexman
Ruhinda
saddle friction-plates
second-string
single-speeds
stealings
stop valve spindle
structural component
supmmeatai triangle
thermal initiation
thermal underwears
topographic interpretation
trapezium segment
trial-for-ignition period
UKBA
umbworld
unbind
uniquely defining class
vehide currency
veiniest
wasn't
witnessest
xenogenesis
Yagi-Uda array