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
2-methylcortisol
aceraius grandis
Aconitum refracticarpum
allantois chorioidea
aquachloral
arsecheek
avant-gardists
back-channeled
be better of
bean tree
Biankouma
body-thrusts
buarques
bwe
C-Prolog
cable distribution point
Chattertonian
claisen para-rearrangement
coati-mundi
colour screw
Crookes' lens
cumulative error
cylinder cover bolt
date of clearance
dibutyryl
Diphyllobothrium erinacei
diplosomites
dome cap
drip gasoline
drywell ambient temperature
error locating
Euro share market
exhibition space
famale worker
fineberg
flunk
foam in hibitors
foreign exchange option
furnace transformer
gross out
half-bottles
heavy lorry
heterodyne repeater
household word
immanacled
income tax authority
intermodal freight terminal
johann maier ecks
josher
khanaqin
Kundsen-langmuir equation
Kutta-Joukowski airfoil
line broadening
linearly equivalence
lorente
lump salt
mating plug
melomelus
Middeldorpf's triangle
near-optimality
neurogenin
non-parametric cointegration
non-provisional
normal atmosphere
nucleus of the solitary tract
nurserygirl
Odawara
orbitosphenoids
Oto-Manguean
owner-like
phase contour
pig pile
plocamium telfairiae
Plutonian
positive vector
pressure-feed oiling
pullulatings
rabbet line
residual noise
reverse intergenerational influence
rodder
sael
sales record
sayan
scrambly
Silicon Wadi
single-action pressing
spongy brake pedal
structural basis
submolecule
sunk-in
Talodex
test harnesses
thunder thighs
torcious
transition state,transition complex
trimmed in bunker
unaccused
unbenzoled petrol
white mahogany
whitenest
zoocoenology