复合茎,分枝茎

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(341) / 评论(0) 分类 英语语法 Grammar Girl

Most college students in the United States choose their major, or main field of study for their degree, before or during their first year. For Saskia Fagan, making that choice was not easy. Fagan, who is now 31 years old, grew up in Takoma Park, Mary

发表于:2018-12-12 / 阅读(235) / 评论(0) 分类 2018年VOA慢速英语(一)月

Intonation can indicate completely different meanings for otherwise similar words or phrases. For example, an English teacher teaches English, but an English teacher is from England; French class is where you study French, but French class is Gallic

发表于:2018-12-27 / 阅读(257) / 评论(0) 分类 美式英语正音训练

Rwanda Invests in STEM Education for Girls Yvonne Kevia is an 18-year-old high school student in Rwanda. She wants to become a chemical engineer. She enjoys doing experiments and taking careful notes in her high school laboratory in Kigali, Rwandas c

发表于:2019-01-02 / 阅读(272) / 评论(0) 分类 2017年VOA慢速英语(十二)月

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-09 / 阅读(308) / 评论(0) 分类 科技之光

AGRICULTURE REPORT - Scientists Find Compound in Smoke that Helps Seeds Grow By Mario Ritter Broadcast: Tuesday, July 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. A di

发表于:2019-01-11 / 阅读(328) / 评论(0) 分类 农业与发展

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(311) / 评论(0) 分类 2011年VOA慢速英语(二)月

The United Nation's World Food Program says rogue members of Somalia's extremist al-Shabab group attempted to raid its compound late Sunday in the Somali town of Wajid, about 300 kilometers northwest of Mogadishu. World Food Program spokesman, Peter

发表于:2019-01-14 / 阅读(348) / 评论(0) 分类 VOA标准英语2009年(八月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(298) / 评论(0) 分类 世界各地新闻集锦

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(357) / 评论(0) 分类 2018年VOA慢速英语(十二)月

By Alex Villarreal Washington 28 February 2008 Adult stem cell therapy has successfully treated leukemia and other cancers for years, in the form of bone marrow transplants. A new study in the Journal of the American Medical Association [JAMA] finds

发表于:2019-01-25 / 阅读(425) / 评论(0) 分类 VOA常速英语2008年(二月)

By Elizabeth Carlassare. Todays topic is compound interest. Albert Einstein is often quoted as having said something to the effect that compound interest is the greatest wonder of the universe. Its an urban legend, but it packs some punch! In todays

发表于:2019-01-30 / 阅读(328) / 评论(0) 分类 货币英语

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(307) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(540) / 评论(0) 分类 科技之光

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(469) / 评论(0) 分类 英语新闻

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(335) / 评论(0) 分类 VOA常速英语2007年(十二月)

Japan's government and the country's central bank took action Thursday to dilute the yen. The Japanese currencys strong standing against the dollar is making exports more expensive, hurting efforts to revive the country's moribund economy. After many

发表于:2019-02-18 / 阅读(298) / 评论(0) 分类 英语新闻

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(365) / 评论(0) 分类 英语新闻

ISLAMABAD, Feb. 25 (Xinhua) -- The living compound of the former al-Qaida chief Osama bin Laden in Pakistan's northwest city of Abbottabad is being demolished, said one local media report. Local Urdu TV channel Express said that the front part of bin

发表于:2019-02-18 / 阅读(258) / 评论(0) 分类 英语新闻

今天我们要学的词是stem from. Stem spelled s-t-e-m, stem; and f-r-o-m, from. Stem from是源自,来源于的意思。The UN said Syrian government forces are responsible for most of the violence stemming from the country's unrest. 联合国表

发表于:2019-02-18 / 阅读(290) / 评论(0) 分类 英语单词荟萃
学英语单词
airway lighthouse
alkaline reducer
aluminum-bronze
angbands
Annaba
Araks
armature end connection
arsenoblast
auriculo-temporal nerve
autobus
be tired from
Ben Avon
calibration kits
cathode current density
cebocephalic monster
Christmas-box
clothing size
codiagonal morphism
commandries
complex power
concave grid
cost per well drilled
crabeater
Cymidone
deep sky blue
descend on
dreadworthy
droopest
druggists
dual trace oscilloscope
edginton
electric and magnetic units
enharte
enium ion enium
eupenicillium shearii
expansion of gases
extraneous noise
false swearing
fiercely
fish sticks
flap copies
Friedreich's foot
genus Iguanodon
genus meleagriss
glycyrrhiza syrup
goldmen
habitual water use
helium-neon maser
high lipid lipoprotein
hostile(to)
hyssop loosestrife
indiferous amphilbole
induviae
inhonour
Jangkang
jeopardousness
M cell
meat-eaters
mikiss
misimprovements
Mona Island
nevus cerebelliformis
Ogilvie Mts.
olympic spirit
or-flip-latch function
pendulousness
Phenylalanine(histidine)aminotransferase
phenylanilineurea
positive feed
postal receipts
progestin (progestogen)
pumice volcano (explosive volcano)
radar system
radio-frequency identification
reminded of
resplicing
Ribes sylvestre
roll synchronization
rope lay cable
sailfin
saltatory appendage
sandlin
saw logs
silicon electron multiplier targetvidicon
sinophenin
sound-vision combiner
sturing
sub chromatid
swing-frame grinding machine
taken their pick of
terminal hydrophyllic group
theory of groups
time of low water
travel reimbursement
two - way radio
upasaka
usable storage capacity
utilitaria
Wilhelm I
William Frederick Cody
winch hauling speed
YankeeDoodle