时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 Sometimes it’s easy to understand how an evolutionary 1 change took place, but it’s more difficult to understand why. For example, consider the beautiful birds of paradise which live in the forests of New Guinea. The males of many bird-of-paradise species have evolved colorful plumage, used for dramatic courtship displays. How this plumage evolved is no mystery: The healthiest males usually have the most spectacular plumage, so females choose whichever male has the gaudiest 2 feathers. With this criterion, it’s not surprising that male plumage would grow more and more elaborate over the generations. Understanding WHY the plumage evolved is a little trickier 3. After all, there are some bird-of-paradise species that are really quite drab. These birds devote most of their energy to finding food and raising their young, instead of wasting it on courtship. What makes these near neighbors so different?



adj.进化的;演化的,演变的;[生]进化论的
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
adj.花哨的,俗气的( gaudy的最高级 )
  • The witch doctors were bedizened in all their gaudiest costumes. 女巫医穿上她们最绚丽的衣服,打扮得俗不可耐。 来自辞典例句
adj.狡猾的( tricky的比较级 );(形势、工作等)复杂的;机警的;微妙的
  • This is the general rule, but some cases are trickier than others. 以上是一般规则,但某些案例会比别的案例更为棘手。 来自互联网
  • The lower the numbers go, the trickier the problems get. 武器的数量越低,问题就越复杂。 来自互联网
学英语单词
absolute bill of sale
acrobatic flight
adrostral groove
airplane fabric
aiser gate
aleur(i)ospore
angiomatosis retinoserebellosa
anti-pattern
aoli
auditory word center
automatic-indicating scale
backward shift
birth-cohort study
bleiler
bloop
built-up joint
celestial coordinates
collector current cut-off
contact clause
damage control equipment
dassault-breguet
dentofacial zone
desynchronised
Dirmstein
documenter
ear tatoo
ecohistory
electronic data transmissing set
epitomization
estate-agent
expulsure
external priority discipline
fall of snow
for good or for ill
fully static memory
glazing by spraying
gorefest
gorris
grass mask
Graves, Robert Ranke
guerrilla proofreading
henparty
homogeneous condensation
Huoluo Xiaoling Dan
Inda Silasē
index of correlation
indigo powder
inswing
koshares
LCFAO
lend oneself to dishonest schemes
Litsea machiloides
mansions
Megallate
nausiness
Ndikeva, Mt.
neurogranulomatosis
on-track verification
one-group theory
oro y plata
orthopedy
ossicles
other place
otogenic subdural abscess
oven fusing
Oxibendazolum
paraxial ray tracing
penalty for violation of regulation
pericapillary cell
plinks
pomiculture
Pompiloidea
postconvulsive
power transient
qiorbiculus
req.
return card
rolling lever
scrub rake
see you then
sequential significance test
shakuntala
sheathed-pilot system
skalling
Skolem function
slag welding
sleaking
slotted coaxial antenna
society-centreds
standard reference conditions for gases
the odd man
transformer casing
twist-against-twist
uk informal
ultrasonic method
undeveloped water power
upsetting machine
uroporphyrinogen I synthetase
vacuum sealed process
Verkhniy Baskunchak
weakly stationary process
zoom copier