左旋叶绿素

AS IT IS 2016-11-05 Fall Colors Not Only Red and Blue 秋天的颜色不仅是红色和蓝色 This is Whats Trending Today. Americans often identify the two major political parties by the colors red and blue. The practice began with the 2000 election

发表于:2018-12-16 / 阅读(313) / 评论(0) 分类 2016年VOA慢速英语(十一)月

SCIENCE IN THE NEWS - A Taxi at 12,000 Meters? New Mini Jets Are About to Shake Up World of Air TravelBy Brianna Blake, Jerilyn Watson and Nancy Steinbach Broadcast: Tuesday, October 31, 2006 VOICE ON

发表于:2019-01-02 / 阅读(301) / 评论(0) 分类 2006年慢速英语(十)月

Autumn Leaves Show Their True Colors As days grow shorter and nights grow cooler in Boulder, Colorado, the green leaves of summer have been putting on party colors. On cottonwood trees and aspens, theyre golden yellow coins. On Mapleton Avenue, the m

发表于:2019-01-13 / 阅读(360) / 评论(0) 分类 VOA标准英语2011年(十一月)

AUDIE CORNISH, HOST: Need a distraction from the news? ARI SHAPIRO, HOST: We have one. CORNISH: It's a reminder of the good things in life that are free. SHAPIRO: Another commercial for Nicer Living. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED MAN

发表于:2019-01-17 / 阅读(392) / 评论(0) 分类 2017年NPR美国国家公共电台2月

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Adam Navis. 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 In the last fifteen years, farmers

发表于:2019-01-19 / 阅读(302) / 评论(0) 分类 环球英语 Spotlight

雅思阅读考试备考中很重要的一个部分就是对雅思阅读文章题材的熟悉和掌握。 雅思阅读考试的文章通常分为生物、地理和社会科学三类。雅思文章的出处有很多,其中最实用的、便于积累背

发表于:2019-02-12 / 阅读(377) / 评论(0) 分类 雅思英语

Because chlorophyll is the chemical responsible for making leaves green, its absence allows chemicals such as carotinoids, xanthophylls, and others to give leaves their orange, yellow, and various other colors. As trees stop producing chlorophyll, th

发表于:2019-02-15 / 阅读(286) / 评论(0) 分类 英语时差8,16

Well, mushrooms are merely one of many types of fungi. Not all fungi grow in soil. However, mushrooms and other fungi do resemble plants in many ways, so much so that scientists long classified fungi plants, but they know better now. Eating Habits Wh

发表于:2019-02-24 / 阅读(262) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
abyssal environment
accrobranching
aircraft attitude
alkaline detergent solution
aluminum winding transformer
anterolateral column
assetless
auxiliary equipment control panel
bed of honour
bowed keyboard insrument
branning
Brdy
ccsce
central interruptregister
CHIBOR
chlorobenzimidazole
closed treaty
complex heterozygote
connections between factory and shops
current channel
deferred printing
desktop environment
double declining method
dovetail-joint
drag divergence
environmental consideration
ergan
farm loan bond
flattens out
forward creep grazing
Fumazone
garamantes
genus Cuniculus
guinea fowl
hang up one's fiddle anywhere
high-angle gun
high-fusibility ash
hyperchimera
immoral invention
in no uncertain terms
innately
intercolumnation
internal program representation
Jünkerath
keyboard contact bounce
leaf-cast
lighted-access data
local electric supply
looking for love
metal point
midriff
minimumaltitude bombing
Mokre
needle artist
nestegg
nonconsulted
option character
out of circulation
owners-in-common
pay-off a debt
peanut oils
photolesion
pinctada nigra
play the market
precision code
Precortalon
pseudo-scholarship
put a veto upon
quieten down
radio common channel
radiosensibility
reciprocating motor
res judiciaria
revenues from fines & indemnities
Rh negative
rickettsia tsutsugaraushi
rub-and-go
science platform
scroggins
service restriction
sliding component
sole circle dismount
solid spill
static resolution bandwidth
subclypeal pump
supercrip
target areas
to look at something
triregimental structure
tumble-home bulwark
U. K.
ufo's
undomesticates
unimation
untressed
upwell water
UTBG
value-added remarketer
Wallersdorf
wedge buster
what's new
workers' university