时间:2019-01-02 作者:英语课 分类:国外媒体新闻


英语课

平时,贪吃的朋友们总是觉得多吃一点没有关系,满足自己的嘴馋最要紧。然而,你们知道吗?贪吃、吃得过多有可能会导致死亡。所以,大家还是要合理饮食。


Yael: Hey Don, do you know why over-eating can be lethal 1 for a squid?


Don: Obese 2 squid are prone 3 to heart disease, Yael?


Y: No. In fact, it would only take a single oversized meal to kill or cause brain injury to a squid.


D: Brain injury? I'm stumped 4.


Y: Squid are part of a diverse group of highly evolved invertebrates 5 called cephalopod mollusks. Cephalopods, which also include octopus 6 and cuttlefish 7, have the largest and most complex brains of all the invertebrates. Like all invertebrates, squid don't have a bony skeleton. And squid even lack a hard outer shell like many other mollusks have. But squids' brains are protected by a capsule of flexible cartilage.


D: Yael, what does this have to do with over-eating?


Y: Oh right. Well, the squid's digestive system passes right through its brain!


D: Whaaaaat?


Y: Yep. Although the cartilage surrounding the brain is flexible, it doesn't stretch. However, the esophagus running through the middle of the brain does stretch. If a squid tried to swallow too large a piece of food, the esophagus would expand, squashing its brain into the sides of its head. But squid are well adapted to avoid this problem. They have hard chitinous beaks 8, sort of like parrots' beaks, that break up even hard-shelled food into manageable pieces. The food is further broken down by strong enzymes 9 in their saliva 10, and a hard, raspy tongue-like structure called a radula. The radula is covered with rows of small sharp teeth specially 11 adapted to grinding and shredding 12. So the squid's dinners are reduced to tiny particles before swallowing.


D: An esophagus through the brain! Who knew squid were so fascinating!?



adj.致死的;毁灭性的
  • A hammer can be a lethal weapon.铁锤可以是致命的武器。
  • She took a lethal amount of poison and died.她服了致命剂量的毒药死了。
adj.过度肥胖的,肥大的
  • The old man is really obese,it can't be healthy.那位老人确实过于肥胖了,不能算是健康。
  • Being obese and lazy is dangerous to health.又胖又懒危害健康。
adj.(to)易于…的,很可能…的;俯卧的
  • Some people are prone to jump to hasty conclusions.有些人往往作出轻率的结论。
  • He is prone to lose his temper when people disagree with him.人家一不同意他的意见,他就发脾气。
僵直地行走,跺步行走( stump的过去式和过去分词 ); 把(某人)难住; 使为难; (选举前)在某一地区作政治性巡回演说
  • Jack huffed himself up and stumped out of the room. 杰克气喘吁吁地干完活,然后很艰难地走出房间。
  • He was stumped by the questions and remained tongue-tied for a good while. 他被问得张口结舌,半天说不出话来。
n.无脊椎动物( invertebrate的名词复数 )
  • Insects and worms are all invertebrates. 昆虫和蠕虫都是无脊椎动物。 来自辞典例句
  • In the earthworm and many other invertebrates, these excretory structures are called nephridia. 在蚯蚓和许多其它无脊椎动物中,这些排泄结构称为肾管。 来自辞典例句
n.章鱼
  • He experienced nausea after eating octopus.吃了章鱼后他感到恶心。
  • One octopus has eight tentacles.一条章鱼有八根触角。
n.乌贼,墨鱼
  • I have no idea about how to prepare those cuttlefish and lobsters.我对如何烹调那些乌贼和龙虾毫无概念。
  • The cuttlefish spurts out dark ink when it is in danger.乌鲗遇到危险的时候会喷出黑色液体。
n.鸟嘴( beak的名词复数 );鹰钩嘴;尖鼻子;掌权者
  • Baby cockatoos will have black eyes and soft, almost flexible beaks. 雏鸟凤头鹦鹉黑色的眼睛是柔和的,嘴几乎是灵活的。 来自互联网
  • Squid beaks are often found in the stomachs of sperm whales. 经常能在抹香鲸的胃里发现鱿鱼的嘴。 来自互联网
n. 酶,酵素
  • It was said that washing powders containing enzymes remove stains more efficiently. 据说加酶洗衣粉除污更有效。
  • Among the enzymes which are particularly effective are pepsin, papain. 在酶当中特别有效的是胃朊酶、木瓜酶。
n.唾液,口水
  • He wiped a dribble of saliva from his chin.他擦掉了下巴上的几滴口水。
  • Saliva dribbled from the baby's mouth.唾液从婴儿的嘴里流了出来。
adv.特定地;特殊地;明确地
  • They are specially packaged so that they stack easily.它们经过特别包装以便于堆放。
  • The machine was designed specially for demolishing old buildings.这种机器是专为拆毁旧楼房而设计的。
v.撕碎,切碎( shred的现在分词 );用撕毁机撕毁(文件)
  • Like the Tehran experience, the shredding may be all for naught. 如同德黑兰事件中的情况一样,切碎文件可能是徒劳的。 来自时文部分
  • How shredding began is subject to some guesswork. 粉碎处理行业的起源是个有争议的问题。 来自时文部分
学英语单词
a leech
adultier
ambrette-seed oil
anterior mesenteric plexus
Apium graveolens L.
appropriatenesses
arenonium ion
asymmetric warfare
backlining
Badulla
bank of capacitors
Bayer's acid
bearer bill
Benwood
biliged
blacklight trap
block spirit level
Brownhills
causality of crime
cavernula
cold therapy
Collinsia bicolor
comprehensive strength
consensual nature
consistency operation
cramazing
cross-blast
croupier's rake
customer care
Dendrocalamopsis oldhamii
Didymiaceae
dienes with conjugated double bonds
disburses
dish-shaped ewer
early-twentieth-century
edible amaranth
elastration
ellipsoidal binary
Enhanced IDE
fulcral
Gay-Lussac's law
Gordeyevka
Guabira Airport
gypsion
half-believings
hamo
have quality
hour counter column wheel
in the market
inter-play
intermittent disease
ladder davit
LFP
lumbo-abdominal
marinize
Marondera(Marandellas)
metro-nania
microencapsulations
misloads
mixed larceny
modified mean square successive difference
monosyaptic reflex
moving head
nabobships
Nasserite
nontechies
Okataina, L.
on hand inventory
open loop response
over enthusiastic
Papillarietum
pecking-orders
POEMS syndrome
polar timing diagram
preloaded
reap hook
reedgrasses
reverse osmosis equipment
Rosalba
saegusas
safety
sensor switch
set spies after
shaft-raise
shebeening
slide conveyor
sliver protein
spirit of turpentine
striking temperature
surface wave line
suuntoes
Taneichi
tangent vector bundle
technical protocol
trademark protection
transplantation immunity
viscosity of fluid
waleed
Wee-Lo
wet-grinding machine
wire diffusion
wire-frame image