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
0736
a large body of facts
ala ossis ilium
an apple of Sodom
archetypal image
arrata
Arteria prepancreatica
Asplenium adiantum-nigrum
automatic tube rolling mill
autotransplanting
backscratched
backward jump
batonic
bethan
blackbody temperature
book-entry securities
bushwa
caltran
circusiana
composite pile
Davy lamps
di-n-butyl ether
diaphragm freezer
digital data processing unit
direct sampling system
distractedness
eavedrop
equivalent loading
Eurytomidae
exchange for ready money
existing system flow chart
fictionalisation
filling battery
finns
flemingia macrophylla philippinensis
floosie
frameshift suppression
from generals to particulars
frost nova
fulgens
grainovator
grounding contact
Hannêche
have no choice but
hecto-radian
idem velle atque idem nolle
iief
Imidazolo-2-Idrossibenzoato
infidel
infix notation
intercession
International Convention on Tonnage Measurement of ships
karst emergence
kaus
key record
kuteera gum
margin indicator
mcca
megagametogenesis
mollisons
musical accentuated
needle bearings
nodal system analysis
organogenetic evolution
pale as a ghost
pallescens
pertmuational isomer
phonetizations
photo Joe
pisses around
process art
protective colouring, protective colouration
pseudorhombus levisquamis
pseudospaces
real storage page
regular internal-thread symbol
reinoculating
rib weave
sawers
screw-stay
seguencing unit
selective chemical etching
semiconductor IP
size of tool
skin hyperkeratosis
slow loris
spindle fibre
stage scene
tactiosensible
the emperor jones
Tiaokou
transboys
trifluoper-ez-ets
uk other
uludag
unoperated position
unresentfulness
utilization shared by different operation units
velocity vector
vesicouterine
willig
zombiesat