叶绿素缺乏

[00:06.79]Jane works at the Center for Disease Control and prevention [00:12.12]as a disease detective. [00:15.46]Listen to the tape and answer the questions. [00:19.91]The Diseases detective. [00:23.46]Jane is one of the experts at the Center for Di

发表于:2018-12-13 / 阅读(175) / 评论(0) 分类 人教全日制普通高中英语(必修)高二

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(120) / 评论(0) 分类 2016年VOA慢速英语(十一)月

Sickle cell disease is a blood disorder due to a single genetic mutation. It remains in populations because the mutation has a flip sideit helps to protect against malaria. Now another mutation has been shown to afford similar protection. Deficiency

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(十二)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(68) / 评论(0) 分类 2006年慢速英语(十)月

By Lisa Schlein The UN Children's Fund, UNICEF, says Iodine Deficiency Disorders, which cause mental retardation, are a huge problem in Europe and Central Asia. UNICEF says this disorder can be solved

发表于:2019-01-03 / 阅读(74) / 评论(0) 分类 VOA2004(下)--健康科技

发表于:2019-01-03 / 阅读(65) / 评论(0) 分类 医务英语

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(94) / 评论(0) 分类 VOA标准英语2011年(十一月)

By Kari Barber Dakar 06 July 2007 After years of turmoil and economic hardship, the small West African nation of Guinea Bissau is facing a health challenge caused by the absence of iodine in the nation's diet. In countries where iodine is not already

发表于:2019-01-16 / 阅读(124) / 评论(0) 分类 2007年VOA标准英语(七月)

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(114) / 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(76) / 评论(0) 分类 环球英语 Spotlight

Australian researchers have identified a new condition characterized by extreme laziness: motivational deficiency disorder (MoDeD). MoDeD is far different from being a couch potato when you get home from work or sleeping in late on a Sunday morning.

发表于:2019-01-26 / 阅读(103) / 评论(0) 分类 阅读空间

当你给自己设定了一个目标之后,你是踌躇满志还是心存怀疑?当你没有如愿实现自己的目标时,你是不是就此降低对自己的期望?这篇短文将告诉你:矢志不移地追求你的目标,不妄自菲薄

发表于:2019-01-28 / 阅读(61) / 评论(0) 分类 实用英语

23 患爱滋病的母亲不宜母乳喂养婴儿 DATE=3-19-01 TITLE=DEVELOPMENT REPORT - Breastfeeding and AIDS BYLINE=Jill Moss (Start at 1'00

发表于:2019-01-30 / 阅读(76) / 评论(0) 分类 科技之光

LOS ANGELES, March 3 (Xinhua) -- More and more American adults are suffering from a decline in overall sleep duration(持续时间), the U.S. Centers for Disease Control and Prevention (CDC) (疾病防治中心) said on Thursday. It's recommended tha

发表于:2019-02-01 / 阅读(75) / 评论(0) 分类 英语新闻

让你增加工作活力的5个方法 1. Engage in a quick conversation with a high-energy colleague. Their positive energy may refresh you. (Just be careful not to drag them down!) 与精力充沛的同事进行短暂的交谈。他们积极的干劲会

发表于:2019-02-05 / 阅读(65) / 评论(0) 分类 实用英语

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(91) / 评论(0) 分类 雅思英语

【生词预览】 detect查明、测出,mental智力的,deficiency缺陷、不足,confess承认 【笑话原文】 Dont Know Much about History Would you mind telling me, Doctor, Bob asked, how you detect a mental deficiency in somebody who ap

发表于:2019-02-15 / 阅读(77) / 评论(0) 分类 英语笑话(MP3+文本)

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(78) / 评论(0) 分类 英语时差8,16

[00:13.73]Mental deficiency [00:16.10]智力缺陷 [00:19.02]Would you mind telling me, Doctor, [00:22.09]Bob asked... [00:23.67]how you detect a mental deficiency in somebody [00:28.05]who appears completely normal? [00:31.34]Nothing is easier, he r

发表于:2019-02-22 / 阅读(70) / 评论(0) 分类 英语笑话(MP3+文本)

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(67) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
212
a nancy boy
a za
Adams, Henry
adjudication disappearance
adminicular evidence
aerial photographic navigation
aesuletin
ammonium sulfate nitrate
analog-digital computer
anthropogene
baluster measure
big hole r.
biliary peritonitis
bob tail
Borgia family
botryomycotic
cable transfer
carnalises
ceeldam
committee on advanced television service
conductor grip
Corallodiscus cordatulus
debris bag
deka-ampere balance
destocks
diaphanids
Dirélabé
Domfront
effectiveness audit
ekes out
element mass matrix
end speed
epidermal gliding
esmonds
extended type
fluid delivery
full height
getter material
GM_lots-a-lot-plenty
gos lettuce
group-mean
heavy isotope
HMW-kININOGEN
honey-bee
icant
illudin M
kipketer
large-scale time-sharing system
leisurely grazing
Ligularia alpigena
lime-sand brick
line interlace
lingual apparatus (or hyoid apparatus)
liquid crystalline polymer in-situ composite
lock-out device
macro photography
misconveying
Moskovka
mushenge
myddelton
nitroso dye
paged through
Parnaibinha, R.
permanent loan
phytoparasitic disease
Pola de Somiedo
predestinates
pressure expansion curve
queue thread
raisani
rectified oil of vitriol(R.O.V.)
rioting
road travelling
run over something
seasonal disease
seeing double
sell time
sfr
skreegh
slop-seller
spelting
spherical roof
squares the circle
step voltage
street-fights
Strobilanthes forrestii
student opinion poll
subteenage
superconducting detector
surface coatings
tape coating
tonnage of freight despatched
tresemer
tunnel wall interference
turn pro
ventolise eutocique
vertical temperature
visible photometry
westernmost
woodmongers
writing pointer