时间:2019-01-22 作者:英语课 分类:英语时差8,16


英语课

 Blood Is Thicker Than Water In the 1960’s, biologist William Hamilton became interested in the caterpillars 2 of the cinnabar moth 3. Most caterpillars are heavily camouflaged 4 to protect them from hungry birds. The cinnabar is an exception. It’s covered with yellow and black stripes and it gathers in conspicuous 5 clusters. But it also secretes 6 a chemical which tastes foul 7 to birds. If a bird starts eating one cinnabar caterpillar 1, it quickly realizes how bad it tastes, then leaves the rest of the cluster alone. This method of survival fascinated Hamilton. If evolution involves the “survival of the fittest,” why should any cinnabar caterpillar sacrifice its own life to let the others survive and breed? The key to this mystery, Hamilton found, is that all the caterpillars in a single cluster are from the same set of eggs. Their genes 8 are so similar that it doesn’t matter if one caterpillar or another survives to breed. The genes will still be passed down. Hamilton studied a variety of other species that exhibit self sacrificing behavior, and he found the same thing: The chance of one organism sacrificing itself for another increases mathematically as the degree of kinship increases. Animals from sea polyps to birds to monkeys all follow Hamilton’s rule. Some animals that would die to protect their own young might happily kill the young of a stranger. Some anthropologists argue that Hamilton’s rule applies to humans as well. You’re more likely to act altruistically 10 for someone you think of as kin 9. Perhaps the key to peaceful coexistence lies in recognizing the common kinship of all humankind.



n.毛虫,蝴蝶的幼虫
  • A butterfly is produced by metamorphosis from a caterpillar.蝴蝶是由毛虫脱胎变成的。
  • A caterpillar must pass through the cocoon stage to become a butterfly.毛毛虫必须经过茧的阶段才能变成蝴蝶。
n.毛虫( caterpillar的名词复数 );履带
  • Caterpillars eat the young leaves of this plant. 毛毛虫吃这种植物的嫩叶。
  • Caterpillars change into butterflies or moths. 毛虫能变成蝴蝶或蛾子。 来自辞典例句
n.蛾,蛀虫
  • A moth was fluttering round the lamp.有一只蛾子扑打着翅膀绕着灯飞。
  • The sweater is moth-eaten.毛衣让蛀虫咬坏了。
v.隐蔽( camouflage的过去式和过去分词 );掩盖;伪装,掩饰
  • We camouflaged in the bushes and no one saw us. 我们隐藏在灌木丛中没有被人发现。 来自《现代英汉综合大词典》
  • They camouflaged in bushes. 他们隐蔽在灌木丛中。 来自《简明英汉词典》
adj.明眼的,惹人注目的;炫耀的,摆阔气的
  • It is conspicuous that smoking is harmful to health.很明显,抽烟对健康有害。
  • Its colouring makes it highly conspicuous.它的色彩使它非常惹人注目。
v.(尤指动物或植物器官)分泌( secrete的第三人称单数 );隐匿,隐藏
  • The pineal gland secretes melanin during times of relaxation and visualization. 松果体在放松时分泌黑色素是明白无误的。 来自互联网
  • For example, the archegonium (female organ) of the moss Funaria secretes sucrose. 例如藓类颈卵器(雌性器官)分泌蔗糖。 来自互联网
adj.污秽的;邪恶的;v.弄脏;妨害;犯规;n.犯规
  • Take off those foul clothes and let me wash them.脱下那些脏衣服让我洗一洗。
  • What a foul day it is!多么恶劣的天气!
n.基因( gene的名词复数 )
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
n.家族,亲属,血缘关系;adj.亲属关系的,同类的
  • He comes of good kin.他出身好。
  • She has gone to live with her husband's kin.她住到丈夫的亲戚家里去了。
  • An unexpectedly large fraction of players acted altruistically to protect their weaker friends. 远远超出人们的预料,有很大一部分玩家在游戏中无私地保护那些弱者朋友。 来自互联网
学英语单词
adding limestone
afbds
algera akinesia
Ammoket
androgynous docking system
antischool
auxiliary statistic
azotizing
Batchelorite
bedizens
board around/round
bowsprit bed
buddemeier
carrier sync
center/centre of twist
circot
classical elasticity
coefficient of effective aperture
computable general equilibrium (cge)model
constant pressure mixing
coping style
design manager
Diabex
diagonal and longitudinal built
dicacodyl oxide
dumbbutt
electronic management system
elevation of pole
entry corridor
falmers
ferromagnetic-paramagnetic transition
fissionable fuel
fitting surface
french weeds
full detail
Godelleta
green-yellows
guide passage
highland ice
Hillerslev
Hoeam
Hueck's ligament
hyperplasic
image maker, imagemaker
integral distribution curve
JavaSoft
junior scram
l'annee
larranaga
lassally
lesser wintergreen
longitudinal electro-motive force
loveboats
manhole collar
marine fire-fighting system
menstruant
Merremia hederacea
moonride
Morinda hupehensis
neutron multiplication factor
normal codition
ocean bed
one pass compiler
OR mapping
OSAT
oxycel
photoisland grid
plastiform
polar outbreak
Precose
preter-
printing-out paper
psammitic structure
quadricillate zoospore
Quambatook
Quanzhou kilns
receiver dynamic range
renin-angiotensin-aldosterones
richness index
rotary slurry distributor
ruffians
Sabine formula
schisticeps
Schoenflies' symbols
shipping space
silychristin
single iron pulley block
single row
sow box
speed of shear waves
Strobilanthes oligantha
structure array
Temryukskiy Rayon
terminal carboxyl
TGVs
theobromina
time-mark generator
tongolense
tool quality
triphedinon
USPF
yttrialite- (y)