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
acanthochiton
acception of persons
act according to
actvs
aetr
Akropong
ann c.
arteriae ulnaris
Asian cholera
atmosphere analyser
automatic monitoring
b-complex vitamins
barrow's
bill of lading copy
blow-run method
bricked it
brown smoke
chassepots
chewability
chirometer
civil time
clowers
Cogolin
consciousness-threshold
counterlaths
diameter ratio
differential block
doner kebabs
electronic journalism
ELEP (expansion-line end point)
employee business expenses
endomesoderm cell
euaugaptilus mixtus
factor of evaluation
finish gauge
fire extinguisher system
fordwine
globeflowers
GM_past-perfect-continuous-i-had-been-working
granoblastic texture
gross thickness
heavy-liddeds
horny-handed
hutzpah
hwyls
included angle
instantaneous frequency stability
insulating soft wire
isogermidine
Khārchok
land use mapping
lazy leucocyte syndrome
line of engagement
link (li)
Lithocarpus jenkinsii
lower end of duct
mediumfit
microscopics
microviscosity
mini-burgers
monotonic functional
morning draughtboard
nipponium
oligarchies
operatorship
Orissi
pharmacological compound
phosphatidylinositol(PI)
pole trawl
private listing
proton stream
psychorrhagia
qualified director
qualitative property
quartz watch
radio-thermoluminescence
Rhododendron jinxiuense
Sankt Gallenkirch
sarcinodes yeni
saturation patrols
scrap metals
shamshir
shyryf
specified point
Stewartia gemmata
sun-burned
super-huge turbogenerator
supply-demand relation
sylph-like
tandem milking parler
theos
thirled
trachy-pitchstone
two-way omnibus
unregimented
unvailing
valeryl phenetidine
washed down
whisenhunt
Wilkins Micawber
wintams
Zabud