时间:2019-01-20 作者:英语课 分类:2014年Scientific American(八)月


英语课

 Ever look in the mirror the first thing in the morning and say  I look like a crap While for some spiders, looking like poop can actually be a life saver, because masquerading as a bird toes appears to protect certain eragnite from getting eaten by wasps 2.That's according to a study in the journal Natural scientific Reports.Researchers were over the plentiful 3 bird do their and forest in Taiwan. Then they realized that some of those dropping were in fact special spiders sitting in the top silky white disks at centre of their web. Sure this 


scatological costume may fool a bunch of PhD, but do the predatory wasp 1 for fooled to find out. The researchers used spectrometer to confirm the spider in the web is especial inextinguishable from bird's bread. Then they changed the the covering of some webs by dusting them with carbon powder,and they found that spiders that rest on the artificially black and silk were much more likely to get eaten. Now this result don't prove that wasps buy the whole put ,maybe spider against the white background are just harder to spot, to be more confident that looking like poops is key,researchers may test the wasps to found out if they are just glimpse it and stepping it.

n.黄蜂,蚂蜂
  • A wasp stung me on the arm.黄蜂蜇了我的手臂。
  • Through the glass we can see the wasp.透过玻璃我们可以看到黄蜂。
黄蜂( wasp的名词复数 ); 胡蜂; 易动怒的人; 刻毒的人
  • There's a wasps' nest in that old tree. 那棵老树上有一个黄蜂巢。
  • We live in dread not only of unpleasant insects like spiders or wasps, but of quite harmless ones like moths. 我们不仅生活在对象蜘蛛或黄蜂这样的小虫的惧怕中,而且生活在对诸如飞蛾这样无害昆虫的惧怕中
adj.富裕的,丰富的
  • Their family has a plentiful harvest this year.他们家今年又丰收了。
  • Rainfall is plentiful in the area.这个地区雨量充足。
学英语单词
adrenoprival
agitator shaft speed
agrogeography
anthraglucorhamnin
aritrary decision
arsenohauchecornite
astronesthes indopacificus
Banswara
bayton
bepinched
breastsummers
breeding material
Buckley ga(u)ge
card authentication method
centralized physical net settlement
ceramic sensor element
chain pipe
citrocoll
clay model
common frog
culture pan
departure and arrival track
electric two-speed drill
enoxidase
Fampotabe
Festuca coelestis
financal
fractional melting apparatus
garden microclimate
geology of oil and gas
GND
gotten the run of
graduated vote
Hepalidine
high-valuation
hose sweeping
hourly pay
HVPT
infrastructure network
intolerant of
Kefauver, Estes
keyt
Kiziguru
Leadite
lipoidolytic
longitudinal plasma turbulence
Matangi
mayela
mean cushion length
medscape
Mercurians
multimode integrated circuit
Nevisian
no-sides
normal binary
official tariff
ogives
Ohlmacher's fixing fluid
Olsätter
P-R interval
Pakribarāwān
palmisters
parting shot
pegu yoma
penelope canvas
point for shaft position
power from ocean tides
progestational
radioiodide
refractive index profile measurement
restoration work
scale cinder
scapulas
scientization
self-contained range finder
self-priming device
shaker crank
sine-wave inverter
sixt
slap on the side
Sodium p-aminobenzene sulfonat
spectral condenser
standard mapping
steerage fin
stipple effect
succification
sybaritically
take ... apart
three -toed woodpecker
to nest
tracer facility
trike
trippi
two-page separation key
twothird
uleacs
un-groups
vapo(u)r compression refrigeration cycle
widtsoe-tollens' test
worfs
write-recovery time
zanjas