王蝶(黑脉金斑蝶)

Part II Listening Comprehension (30 minutes) Section A Directions: In this section,you will hear 8 short conversations and 2 long conversations.At the end of each conversation,one or more questions will be asked about what was said.Both the conversat

发表于:2018-12-01 / 阅读(176) / 评论(0) 分类 大学六级英语考试听力真题

Part II Listening Comprehension (30 minutes) Section A Directions:In this section,you will hear 8 short conversations and 2 long conversations.At the end of each conversation,one or more questions will be asked about what was said.Both the conversati

发表于:2018-12-01 / 阅读(159) / 评论(0) 分类 大学六级英语考试听力真题

BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. STEVE EMBER: And Im Steve Ember. This week, we will tell about North Americas monarch butterfly. We will tell about a British investigation of information stolen from c

发表于:2018-12-07 / 阅读(123) / 评论(0) 分类 2010年VOA慢速英语(四)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. This week, we will tell about a threat to North America's colorful monarch butterflies. We will tell about what is being called the olde

发表于:2018-12-07 / 阅读(97) / 评论(0) 分类 VOA慢速英语2008年(四)月

Researchers find circadian clock in Monarch's antenna plays a major role in navigation Shelley Schlender | Michoacn, Mexico 22 March 2010 Scientists believe antennas are critical to the navigation of the Monarch butterfly. Related Links Monarch Watch

发表于:2018-12-16 / 阅读(150) / 评论(0) 分类 VOA标准英语2010年(三月)

Voice 1 Welcome to Spotlight. Im Joshua Leo. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 I was watching a butterfly the other

发表于:2018-12-19 / 阅读(103) / 评论(0) 分类 环球英语 Spotlight

Every year, millions of monarch butterflies fly thousands of miles to alight in one specific forest in Mexico. How do they know what direction to flutter? Scientists had thought that an insect GPS system in their brains steered them in the right dire

发表于:2018-12-24 / 阅读(163) / 评论(0) 分类 Scientific American(九)月

Antennae Key to Butterfly Navigation A study in the journal Science shows that monarch butterflies' sun-related directional sensing is governed by antennae, not the brain. Cynthia Graber reports Every year, millions of monarch butterflies fly thousan

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 60秒科学

By Jerilyn Watson Broadcast: November 20, 2003 This is Steve Ember with the VOA Special English Education Report. Educational gardens called

发表于:2019-01-02 / 阅读(126) / 评论(0) 分类 VOA2003(下)-教育与新闻

SCIENCE IN THE NEWS - As Butterflies Head South to Mexico, Humans Fly Along By Caty Weaver, Jill Moss and George Grow Broadcast: Tuesday, October 04, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEW

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 科技之光

Many Monarch Butterflies Not Flying South for Winter For many Americans, monarch butterflies are a sign of changing seasons. 对于许多美国人来说,帝王蝶预示着季节的变化。 In the late summer and early autumn, the butterflies fly s

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 2017年VOA慢速英语(十一)月

Students at P.B. Smith Elementary Schools ecology club are learning about the life and migration of monarch butterflies. They learn in the classroom about the butterflys need for certain plants. They learn scientific words for the stages of a butterf

发表于:2019-01-03 / 阅读(426) / 评论(0) 分类 2018年VOA慢速英语(七)月

By Cynthia Kirk ENVIRONMENT REPORT - February 22, 2002: Monarch Butterfly Deaths in Mexico This is the VOA Special English ENVIRONMENT REPORT. A severe winter storm in central Mexico last month killed

发表于:2019-01-04 / 阅读(128) / 评论(0) 分类 健康与环境

Many of our medicines originate in plants. But were not the only ones who tap into nature.Theres increasing evidence that some animals seek out specific plants for their medicinal qualities. A new study shows that monarch butterflies may be among the

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(十)月

One of the world's most amazing migration is about to begin in earnest: 300 million monarch butterflies spread across North America are about to converge on small forests in the mounts of Mexico. This year, the butterflies have an unusual company as

发表于:2019-01-08 / 阅读(221) / 评论(0) 分类 2005年NPR美国国家公共电台

主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握

发表于:2019-01-22 / 阅读(101) / 评论(0) 分类 NPR边听边练

Butterflies in America 美国的蝴蝶 To marvel at all things 所有事都值得惊奇 A splendid twinning of natural science and America 自然科学与美利坚民族的完美结合 Butterfly People: An American Encounter with the Beauty of the Wo

发表于:2019-01-27 / 阅读(107) / 评论(0) 分类 经济学人文艺系列

HARI SREENIVASAN: Every year, millions of North American monarch butterflies head south for the winter in one of the insect world's most fantastic feats. But as you've likely heard, their numbers have declined dramatically in the past two decades. No

发表于:2019-01-27 / 阅读(139) / 评论(0) 分类 PBS访谈环境系列

Planting Milkweed for Monarchs? Make Sure it's Native Monarch butterflies depend on milkweed. They lay their eggs on milkweed, and their caterpillars eat only the leaves of the plant. No milkweed means no monarchs. So the best way to help declining m

发表于:2019-02-14 / 阅读(113) / 评论(0) 分类 2018年科学美国人4月

There was a time in my life when beauty meant something special to me. I guess that would have been when I was about six or seven years old, just several weeks or maybe a month before the orphanage turned me into an old man. I would get up every morn

发表于:2019-02-22 / 阅读(188) / 评论(0) 分类 阅读空间
学英语单词
acute apicitis
Adenophora pereskiifolia G.Don.
All is well that ends well.
antes fort
artistic calligraphy
base surface
befound
blending value
chaired
Characinidae
child bearing period
civil-aircraft
classical T Tauri star
coil spring switch
cold as wagon tire
collapse fissure
colorizing
concave spherical mirror
cryptoanarchy
dead soil
definite kidney
ditrigonal hemimorphic class
driving leap
DSCT
dulq magharah
durably
Duraplex
Ejisu
Esperantic
eubranchids
Eupatorium lindleyanum
family lemnaceaes
floating roll guide
Flushingize
Gozaru, Darreh
gubbios
guidice
hirons
ibm xt
identical covering
inbounders
inorganic oxacid
instalment distribution liquidation
Isomera
labranche
lake tahoes
launching shock
longitude term gravity formula
lunch-hour
Mafikeng
man carry relay
material purchases order
mus mattheyi
musical phrases
nixon in china
nominal parameter
Non-displacement Vessel
non-full payout lease
number range
orthochamosite
peptic cell
percentage map
pinpoint arrester
primary gas
Privately negotiated options
pull-in frequency
pyrite burning
qualitative theory
radiocarpus
radiophotography
railway vehicle
reflected load
regional economic structure
reunionism
Rifapentini
sea beaver
separating medium
set someone on his way
Settimo Vittone
shacklock
simple multiple access
sparkplug
special expenditure
spewy soil
standard infinitesimal
tarted-up
te-wit
through train originated from se-veral adjoining loading points
titanium nitride coating
Tropocyclops
ttq
ubications
underflow in calculators
undertaught
unjewish
water-soluble air
wave front set
waxable
waybill checking
well-policed
Wireless Bitmap
with open doors