剌鳍类

雷蒙·斯尼奇的不幸历险 第一集 The Bad Beginning第2课

发表于:2018-12-06 / 阅读(164) / 评论(0) 分类 雷蒙.斯尼奇的不幸历险

Fish 鱼 Fish live in water and most fish breathe through their gills. 鱼生活在水中,大多数的鱼靠鳃呼吸。 They have fins, scales, eyes and a mouth. 它们有鳍、鳞、眼睛和嘴巴。 They have a body part for hearing. 它们有接

发表于:2018-12-13 / 阅读(197) / 评论(0) 分类 与美国小学生一起学英文第1册

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from?

发表于:2018-12-24 / 阅读(159) / 评论(0) 分类 Scientific American(九)月

The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor a

发表于:2018-12-30 / 阅读(147) / 评论(0) 分类 国家地理2008年

Lesson 79 The Prickly Hedgehog 第79课 扎人的刺猬 The hedgehog is a common animal in every part of Great Britain where he can find suitable food and lodgings . We can easily see how he has got his name. He is often found at the bottom of our he

发表于:2019-01-01 / 阅读(188) / 评论(0) 分类 英国学生科学读本

About 110 million years ago, a large plant-eating dinosaur covered with sharp points walked the land. Called a nodosaur, it is now the best example of its kind ever found. This new species of dinosaur is being called a one-in-a-billion discovery. Rec

发表于:2019-01-02 / 阅读(149) / 评论(0) 分类 2017年VOA慢速英语(五)月

China's appetite for lobsters is continuing to rise, driving imports from the US to a historic high. 中国人对龙虾的需求正持续增长,推动从美国进口的龙虾总量创下历史新高。 Most Chinese had barely heard of American lobs

发表于:2019-01-07 / 阅读(395) / 评论(0) 分类 英语新闻

Plants that use animals to disperse their seeds can find themselves in a pickle. Their need to make fruit tasty enough to entice the local fauna, but they also need to make sure that their animal assistants don't digest the very seeds they are meant

发表于:2019-01-08 / 阅读(176) / 评论(0) 分类 Scientific American(六)月

Plants that use animals to disperse their seeds can find themselves in a pickle: They need to make fruit tasty enough to entice the local fauna, but they also need to make sure that their animal asssistants don't digest the very seeds that are meant

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 Scientific American(六)月

206. The spinal cord operation脊髓手术 spectra-sponge There was a lecture given at a medical school on a spinal cord operation. The professor began: In order to have a speedy but safe operation, one must speculate on the entire spectrum of possib

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 胡敏托福词汇记单词

Fins 鱼鳍 Fish can swim well with their fins in water. 鱼因为有鳍能在水里畅游。 Also, fish cannot move without fins. 相反的,没有鱼鳍,鱼就不能游了。 Do you know that different fish have different shapes of fins? 你知道

发表于:2019-01-10 / 阅读(166) / 评论(0) 分类 与美国小学生一起学英文第6册

Scientists Explore Underwater Volcanoes 科学家探索海底火山 What covers nearly 29 million square kilometers of this planet beneath the sea? The answer is seamounts. Seamounts are mountains, usually volcanoes, that rise up from the sea floor.

发表于:2019-01-12 / 阅读(188) / 评论(0) 分类 2016年VOA慢速英语(十)月

Interactive Junior Botanist Program Teaches Kids About Plants WASHINGTON Lee Coykendall teaches students from nearby Virginia all about the Theobroma cacao - the source of chocolate. This tree will have 30-40 pods, and inside, look! she exclaimed und

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2014年(八月)

In the waters of Andaman Sea, off the coast of Miyama, a group of sea nomads has made their life among these remote islands for centuries, known as the Moken. Their origins are mysterious. The Moken's extraordinary ability to reap the bounty of the s

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2010年

His questions were different now, though, not as easily answered. 不过,他现在的问题变得不一样了,不再那么容易回答了。 He wanted to know what I missed about home, insisting on descriptions of anything he wasn't familiar with

发表于:2019-01-22 / 阅读(132) / 评论(0) 分类 暮光之城•暮色

14You are the children of the Lord your God. Do not cut yourselves or shave the front of your heads for the dead, 2for you are a people holy to the Lord your God. Out of all the peoples on the face of the earth, the Lord has chosen you to be his trea

发表于:2019-01-26 / 阅读(196) / 评论(0) 分类 申命记

DNA Testing to Help Sharks Keep Fins In a study in the journal Endangered Species Research, shark fins on sale were shown to be from a specific region in which shark populations have collapsed, evidence that may help change fishing regulations. Cynth

发表于:2019-01-30 / 阅读(250) / 评论(0) 分类 60秒科学

Boat Noise Means Fish Can't Learn Their Lessons If you've ever gone snorkeling or scuba divingyou know how peaceful it sounds under there... aside from the crackling sound of snapping shrimp. 你如果浮潜或者潜过水,就会知道水下听起来

发表于:2019-02-14 / 阅读(114) / 评论(0) 分类 2018年科学美国人3月

An excitable conchologist would surely have fainted dead away before other, more numerous glass cases in which were classified specimens from the mollusk branch. 一位神经稍微锐敏一点的贝壳类专家,到了另一些陈列软体类动物标

发表于:2019-02-17 / 阅读(115) / 评论(0) 分类 《海底两万里》中英双语有声读物

After enduring everything the Sahara has thrown at me,i desperately needed rest. 在撒哈拉遇到一系列挑战后 我真的需要休息一下了 While I had some sleep,it just never feels enough. 虽然我昨晚休息过了 但远远不够 A very

发表于:2019-03-01 / 阅读(165) / 评论(0) 分类 荒野求生
学英语单词
accolade
addo
advanced total capital
all-rod-out
antioxidant 330
archipenkoes
ARIMA model
balsam twig aphid
baseplate wax
bow loading and discharge arrangement
braking stiffness
burnt to a crisp
chemises
Chipundu
chorioidepithelioma
Chrysanthemum spatiosum
clairt
commutativities
Dardhas
dihedron group
dog-Latin
Drumcard
encyclopedia of sports
examination techniques
excitatory movement
exempted exchange
false data
fat tissue
flaked-out
formulary of peaceful benevolent dispensary
frequency-domain ip method
Furubira
gear tooth roughing cutter
glass-culture
Gomarite
gravogyro
heir by operation of law
helium-neon gas laser
heterostimulation
high resolution image spectrometer
hsz
hypermenorrhoea
hypothalamic diabetes insipidus
indulgent parents
intermediant
jollity
jus tertii
kohlenhydrate
laboratory value
letts
liquidi
low frequency oscillator
maintenance facility
measurement channel
minutes per scan
misguidedness
narrow-field scanning system
negative binominal distribution
one-touch operation
p150
Pezophaps
plate shaking mechanism
power operated conveying machine
pressure-swing cycle
program state
proprietor of a shop
pulmonary reserves
purkinje networks
radiation decomposition
rag pudding
reciprocal mass
rheumatic myocarditis
Ryjewo
Salsola L.
savings investment equilibrium
scga
self-containedly
sexavalency
Silay
silverhill
smsaskses-s
spin unit
spin-rate control
Strumpell's sign
syzygies
szent
thicknessing
Toilet Mummy
topical disease
triangle wire
triphenylphosphorus
tuning key
undeterredly
upper structure
utility pouch
Wabigoon L.
wave quelling oil
wild rubber plant
Woodland Park
xanthines
zero-order
zog machine