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-allyl-2-methoxyphenol
aardvarklike
adjustment for height of burst
after-only measurement
air mail postage
air-supported structure
alak
Allmendingen
anglo-arab(ian) horse
attritionary
Ayabe
back gouging
ball swager
batch caustic refining
bcz
Bebout wicket dam
bilateral quota
boogies
box-j
bradways
branchiopod crustaceans
brush up on
cepstral analysis
chlorfensulphide
cockade purpura
coherence area
colocasia esculenta antiquorum
comprehensive judgment
cuddapah (kadapa)
definiendums
Delbeck
density of radiation
Dobermen
economic leverage
entry pallet jewel
extra soft steel
Fessenden oscillator
final crop
flamprop-isopropyl
flour improvers
Garau
grab dredger
Grahame
ham press
hardwood-floor
have been here before
integrated disk
IP camera
knuckling
lapchick
Laspeyre's index
location in plain region
lubricator cap
Macruridae
Milaras
mildce
minimum critical volume
Mira, Peňa
miscooked
mortechien
myxoedemas
null correlation
offset mounting
on one's last leg
Patrinia rupestris
Pfizer riser
phenylhydrazine urea
pipeline valve
place hour angle
plane-table tachymetry
pownd
pyrrolomycin
Qusays
rhinorrhoea
road stabilizer
saturation class
scion dominance
Sedum stellariifolium
self-commendation
short and long flashing light
spongiositis
starter motor shift lever
stationary-anode tube
statistic relative frequency
sutherland
synulosis
Tan Hiep
telecosm
tennist
the bitter fruits of sth
the supreme court statistics
thermobalances
Thomas of Erceldoune
tibiocalcanean
triethyltin bromide
turbidity measurement
UNODIR
unparliamentary
unsteadying
viscous fingering
zo(o)-
zoonerythrin