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词型变化:名词复数形式 : horsetail milkweeds

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(126) / 评论(0) 分类 环球英语 Spotlight

That'true. monarch butterflies lay their eggs on milkweed plants.The caterpillars feed on milkweed, from which they extract substances called cardenolides, a type of chemical that can cause heart arrhythmia. This toxin doesnt affect the caterpillars

发表于:2018-12-27 / 阅读(114) / 评论(0) 分类 英语时差8,16

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(455) / 评论(0) 分类 2018年VOA慢速英语(七)月

These amazing images were taken at Horsetail Falls in Yosemite National Park, California by wildlife photographer Penny Adams. For just a few days each year the sun sets over the falls creating a vivid red amber glow - leading it to be re-named Yosem

发表于:2019-02-07 / 阅读(114) / 评论(0) 分类 英语口语

Voice 1 Welcome to Spotlight. Im Adam Navis. 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 1 Human life is full of friends and en

发表于:2019-02-14 / 阅读(151) / 评论(0) 分类 环球英语 Spotlight

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(137) / 评论(0) 分类 2018年科学美国人4月
学英语单词
a storm of
access hatchway
Alpha-Sepiolite
anaximenes
anti-drug media campaign
arcania undecimspinosa
arrhythmic
auditor in charge of the audit
bargaining games
bastard pennyroyals
beach placers
bean chutes
biolistic
bipolar current
by-product recovery gas produceer
Cammidge's reaction
cassius
chlorination process
collective interest
counterflow dryer
court-like
culicoides (trithecoides) tenuipalpis
cystinotic
diagonal-feed
divina
division Pteridophyta
economic association
Embrithopoda
escape stair
execution of the budget
fiendly
foaming testing
folding degree
force majeure clause
forcible execution
frame area
full-depth rolling
genus hipposideross
gotfryd
graceful bearing
have a thin time
illicit intercoursr
isophytochrone
langars
litsea chinensis bl.
locomotive centralized power supply
Lomudas
low-noise electric power plant
luminance keying
lung controlling breathing
Madigan G.
marmalades
multiple culvert
musculi extensor digitorum brevis
napaeae
national code
Nicholaite
nitrophorins
Oecophylla smaragdina
opposite vertex
PADT
pareo
peak-load power station
phlyctenulosis
polytropical
positive sequence short-circuit current
prefix value
prepositional phrases
product planning and development
propeller experiment in open water
Prout, William
purpurogallin number
Rami laryngopharyngeales
relative biological effectiveness (rbe)
relatively compact set
Robsart
runny gluten
safety glove
secrists
shop assembling
small cell lung cancer
soroses
square frame of magnetic needle
statistical predictor
steering apparatus
straight-line hardening
tartuss
test jar
thin ice
Thoiry
time analyzer
touch bottom
Trade Agreement Act
turn over to
unanium content
upholstered sofa
Van Der Waals attraction
vascular zone
visible trade account
Warren abstract machine
wild and woolly
yestermorn