时间:2019-02-13 作者:英语课 分类:留美老师带你每日说英文


英语课

   台湾籍旅美老师今天交给我们的句子是:


  Look closely and you'll see parts that aren't there because you need them but because your animal ancestors did. No longer serving their previous function but not costly 1 enough to have disappeared, these remnants of our deep history only make sense within the framework of evolution by natural selection.
  你仔细看看就会发现,有些毫无用处的身体部位是因应动物祖先的需求而存在的。虽然这些部位跟以往的功能不同,但也不至于完全消失。我们深厚历史下的这些遗迹在物竞天择的进化论下有迹可循。
  身体部位的进化
  学习重点:
  1.ancestor 祖先
  ancestor (n.) 祖先
  ascending 2 (adj.) 递增的
  descendant (n.) 子孙、后裔
  descending 3 (adj.) 下降的
  2.costly 贵重的、宝贵的
  costly (adj.) 贵重的、宝贵的
  cost (n.) 费用、成本
  3.disappear 消失、突然离开
  disappear (v.) 消失、突然离开
  appear (v.) 出现
  appearance (n.) 外表
  4.remnant 残余
  remnant (n.) 残余
  revenant (n.) 归来的人
  5.evolution 发展
  evolution (n.) 发展
  revolution (n.) 革命运动
  6.selection 选择
  selection (n.) 选择
  election (n.) 选举

adj.昂贵的,价值高的,豪华的
  • It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • This dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
adj.上升的,向上的
  • Now draw or trace ten dinosaurs in ascending order of size.现在按照体型由小到大的顺序画出或是临摹出10只恐龙。
标签: 口语
学英语单词
4-(2-pyridylazo)resorcinol
accrolock regulator
adstricting
Alakol, Lake
allosaurids
ask for a loan
bad people
be on location
bombing run
bromomycetin
buccofacial
calculus of sequent
Certificate of Non-restricted Waters
chain pulley seat
chairbound
conga lines
constitution-makings
dalai lama
damagingly
dancercise
dehler
dephasings
deprivable
dog-whelks
duopolistically
earth rubber
eccentric fellow
efficiency of speeder
equatorial axis
fair and reasonable price
field-coil flange
fikeys
finite-energy correction
fourth environmental disease
Fès, Wilaya
genus molothruss
gutturizing
hawn
holdor
Hoshiarpur
hyposodemia
i yin
ideal mixture
job block
Khalkabad
laid-up
Latin Americans
ledron
leeringly
liquid suspension reactor
looser
marine delta plain
Max Hp
methylglyoxal(pyruvaldehyde)
microlichen
nacellid
nasoscope
Neef's hammer
ngamensis
Nonmember bank
nonperiodically
nucleoproteins
obstructers
oil-out
open hook link chain
osment
Pars transversa
Pedicularis oederi
pheasantries
philodine
pivot location
polar excitation
positive-edge
post-lady
potentiometer type pressure transducer
preannouncements
prereductional division
quantization of energy
released heat
Scutigerella
sell for cash down
share charge
single mode generator
skid wire
slipper coal
small lapel
soundery
spark erosion technique
Steenkerke
strip percussion
Sumpangbinangae
superintendent of education
tamper switch
teethings
Tulagino
unguicular
unity gain amplifier
unprotected metal construction
urich
window shopper
yippy
zacchaeus