捕食者与被食者系统, 捕食者-被捕者系统

Majungasaurus thrived more than 70 million years ago. 玛君龙在七千多万年前很繁盛。 Fossil evidence proves that the island of Madagascar teemed with a variety of plants and animals. 化石证据证明了马达加斯加岛满是种类繁多

发表于:2018-12-04 / 阅读(84) / 评论(0) 分类 英语第1级听力-English Level 1

This discovery had given paleontologists an opportunity to look inside the skull of this rare dinosaur. 这个发现给了古生物学家们仔细观察这种稀有恐龙颅内情况的机会。 Dr. Lawrence Witmer of Ohio University leads one of the

发表于:2018-12-04 / 阅读(110) / 评论(0) 分类 英语第1级听力-English Level 1

不知道大家听说过电鱼没有...它们往往生活在浑浊的水域当中,依靠发射电流探测出障碍物以及猎物的位置...原理和蝙蝠发出的超声波差不多...在今天的大千世界中,我们就来关注下这类不同

发表于:2018-12-07 / 阅读(144) / 评论(0) 分类 大千世界

A new study has found that the Arctic's iconic polar bears are finding it harder to hunt for food due to melting sea ice caused by climate change, putting the species at a growing risk of extinction. Researchers from the United States Geological Surv

发表于:2018-12-24 / 阅读(94) / 评论(0) 分类 2018CRI中国国际广播电台

This is Scientific Americans 60-second Science. I'm Adam Hinterthuer. Got a minute? The Komodo dragon is the largest living lizard and a fearsome predator. It has long been thought that some of its hunting prowess was due to a mouth teeming with bact

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(五)月

T-Rex, by using cutting-edge technology, some of its fossilized secrets have been scientifically decoded. 霸王龙,通过前沿科技,其化石里的一些秘密已经被科学界解开了。 It had eagle-eye vision, could smell prey from 3 mile

发表于:2018-12-28 / 阅读(67) / 评论(0) 分类 侏罗纪搏击俱乐部

As investigators studied the large serrated teeth of the giant shark, they discovered the massive power of its bite - a force of 20 tons. 在调查者研究这些巨鲨的大型锯齿状牙齿时,他们发现了它巨大的咬合力可达二十吨。

发表于:2018-12-28 / 阅读(55) / 评论(0) 分类 侏罗纪搏击俱乐部

They moved with their front legs more oriented inward instead of like this, like we see in bears today, and that would have given them a more efficient gate. 当它们进行移动时,前腿更向内靠,而不是像我们如今看到的熊类这样,

发表于:2018-12-28 / 阅读(60) / 评论(0) 分类 侏罗纪搏击俱乐部

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? A hungry fish can kill prey with a quick bite. That is, of course, if its prey hasn't already died of fright. Take tasty dragonflies. The mere presence of pred

发表于:2019-01-08 / 阅读(106) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's one of the oldest moves in teen dating. Head to a scary movie. As soon as the scary music kicks in, your date cuddles closer for comfort. Well, so

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 Scientific American(一)月

Westlife - She's Back Shane Took some time to heal To get my heartbeat back Just when I'm ahead Returning from the dead She's back again... Aha She knows just what to say She always gets her way Just when I was free She's back inside of me She's back

发表于:2019-01-10 / 阅读(68) / 评论(0) 分类 英语歌曲收藏之一

Animated 'Zootopia' Breaks Disney Record 《疯狂动物城》上映一周票房创纪录 The movie had the largest opening weekend for a Disney animated film. People across the United States bought more than $75 million worth of tickets. The box off

发表于:2019-01-12 / 阅读(101) / 评论(0) 分类 2016年VOA慢速英语(三)月

Science and technology 科学技术 Palaeontology 古生物学 Remember the tooth 齿状物所记 A link is made in an ancient ecosystem 古生态系统的一环 WHO ate whom in the food chains of the past is rarely clear. 过去的食物链中谁吃谁

发表于:2019-01-26 / 阅读(57) / 评论(0) 分类 经济学人科技系列

Science and Technology Palaeontology Remember the tooth 科技 古生物学 牙齿的痕迹 A link is made in an ancient ecosystem 古代生态系统中的线索 WHO ate whom in the food chains of the past is rarely clear. 在古代谁以吃谁为生是

发表于:2019-01-26 / 阅读(65) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Palaeontology 古生物学 Remember the tooth 牙齿的痕迹 A link is made in an ancient ecosystem 古代生态系统中的线索 WHO ate whom in the food chains of the past is rarely clear. 在古代谁以吃谁为

发表于:2019-02-05 / 阅读(57) / 评论(0) 分类 经济学人科技系列

obstinate---我不是听你的---a.倔强的,固执的 ponderous---胖得要死--- 笨重的,行动迟缓的 peevish---劈为尸体------a.脾气暴躁的,易怒的 pawn---爬(的)人--- n. 小人物,走卒 parsimonious----怕失去money-

发表于:2019-02-09 / 阅读(70) / 评论(0) 分类 英文语法词汇

barren---(酒)吧人---无生育能力的,贫瘠的 (泡在酒精里当然没有生育能力) dart---打他, 用飞标打他---- n. 飞标 dilemma---带了MM(妹妹)和妈 一起上街,其中一个掉到河里,先救谁呢?所以陷入---

发表于:2019-02-09 / 阅读(71) / 评论(0) 分类 英文语法词汇

托福听力背景知识:托福听力中有大量的专业及学术词汇,这些词汇大多依托于听力背景知识,如果考生能够事先了解一些托福听力的背景知识,对听懂听力对话及段子有很有帮助。 Darvinism

发表于:2019-02-18 / 阅读(52) / 评论(0) 分类 托福英语

杀手一号:主谓一致 以下是学生课上答题的答案,大家能看出来这个同学的答案哪里错了? Imagine that a guy drive along the high way where have a lot of billboards advertising cars. One billboard advertise a car called

发表于:2019-02-20 / 阅读(56) / 评论(0) 分类 托福英语

What ate dinosaurs? 谁吃了恐龙 Old crocs 古鳄鱼 Even in their heyday, dinosaurs were not quite as dominant as popular myth makes them out to be 即便是在全盛时期,恐龙并非像民间传说所理解的那样占绝对统治地位 ONE

发表于:2019-02-24 / 阅读(330) / 评论(0) 分类 经济学人综合
学英语单词
'sixties
?-helix
a slap in the eye
ABLOG/IC/
acquisition rate
artificial ag(e)ing treatment
assimilatives
atmosphere analyser
attenuation theory
biorecognition
biotic zone
Black studies
booty bump
C alloy
call generator
cannabidivarin
child resource
Climara
convection effect
crew call
derridas
desensibilization
Dichocarpum auriculatum
Dipteriformes
dummy file name
early-childhood
Egyptiacal
electrical resonator
elrich
equilibrium conversion
executive-compensation
explosion-proof type equipment
feed-back control
fiftythree
fireball
fried bread
frijolitoes
front of lot
full-speed
General Motor corporation
grevious
group embedded figures test
Herschel-type venturi tube
horizontal parity bit
hygrophilous plant
hyoiatrics
i'm going to sleep
ice breaker
illinoinensis
incrementary borer
industrial laws
instrument block valve
instrument nitrogen dryer
Krebs citric acid cycle
layoff system
lightvessels
liquid nitrogen immersion
longitudinally oriented flaw
message meter
monni
monorail system
multiwave mixing
NTCP
nyctohylophobia
on a sudden
open market orders reserve
overarched
paying in book
periotic space
phyllophore
pivottable starting cell
pre-specified
primary arsenate
primary stimuli
print glazer
procedural knowledge definition
protalus rampart
qalat el madiq
recurrence formula
retsina
Sankeys
self-luminous colour
shower sb with sth
smoke detection piping
steam generator system
stigmata maydis
strip attenuator
subtweeted
tapping analysis
to check bearing
trachiobronchitis
tranquil arc
transgranular crack
triakisoctahedron (trisoctahedron)
triplex receptacle outlet
unpried
uromyces itoanus
volcanic mud and sand
X format code
XingMPEG Player
zanthoxylum fraxineums
zero sound