栽培植物的花粉粒

Passage 18 Flowering Plants What are the parts of a flower? Flowers can have male parts and female parts. The female parts make eggs that become seeds. The male parts make pollen. Pollen is a powdery material that is needed by the eggs to make seeds

发表于:2018-11-30 / 阅读(693) / 评论(0) 分类 英语专业四级听写

[00:06.09]Simon like exciting films,but Debbie prefers nature films. [00:14.52]One day, she said,'Do you want to watch this video,Simon? [00:21.16]It's about strange living things.they can be very or huge! [00:29.31]Some have lots of bodyguards to pr

发表于:2018-11-30 / 阅读(311) / 评论(0) 分类 高中英语牛津版高一

What arc the parts of a flower? Flowers can have male parts and female parts. The female parts make eggs that become seeds. The male parts make pollen. Pollen is a powdery material that is needed by the eggs to make seeds. To make seeds, pollen and e

发表于:2018-12-01 / 阅读(258) / 评论(0) 分类 新东方CET6阅读

Science and technology: Evolution: Bee kind to viruses 科学技术:进化:蜜蜂爱病毒 A strange tale of collaboration between plants, pathogens and insects. 植物、病毒和昆虫的奇特合作。 Cucumber mosaic virus is not restricted t

发表于:2018-12-05 / 阅读(120) / 评论(0) 分类 经济学人科技系列

AGRICULTURE REPORT - Study of a Biotech Plant Finds Pollen Can Travel Farther than Thought By Mario Ritter Broadcast: Tuesday, October 05, 2004 This is Gwen Outen with the VOA Special English Agricult

发表于:2018-12-07 / 阅读(164) / 评论(0) 分类 农业与发展

AGRICULTURE REPORT - Sweet Deal: How Plants Invite Helpful Insects to Dine on Harmful Ones By Bob Bowen Broadcast: Tuesday, November 08, 2005 I'm Shep O'Neal with the VOA Special English Agriculture R

发表于:2018-12-07 / 阅读(142) / 评论(0) 分类 农业与发展

85 Plants Words Flower root stem trunk seed pollen fruit bark branch twig leaf bush jungle rainforest cactus desert savannah coniferous deciduous forest hardwood softwood blossom wood Cherry blossom rose petal bamboo Phrases Plant a tree Several spec

发表于:2018-12-10 / 阅读(155) / 评论(0) 分类 情景英语口语100主题

Need one need cry. one needs to cry. Means Get along with Mary gets along well with her students. Clearly it is easier, if less rewarding, to worry than to be an active, involved person. I can’t hel

发表于:2018-12-15 / 阅读(149) / 评论(0) 分类 自考英语(一)78讲

SCIENCE IN THE NEWS - Orchids Look Weak, But Many Are Stronger Than They Appear From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Christopher Cruise. And Im June Simms. Today we tell about the beauty and science of orchids

发表于:2018-12-16 / 阅读(160) / 评论(0) 分类 2013年VOA慢速英语(一)月

Voice 1 Welcome to Spotlight. Im Christy VanArragon. 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 A farmer stands at the ed

发表于:2018-12-19 / 阅读(111) / 评论(0) 分类 环球英语 Spotlight

Darwin's fabled isles, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands restoration. But six species that were set to be exterminated have gotten a reprieve. Because a new study fin

发表于:2018-12-24 / 阅读(182) / 评论(0) 分类 Scientific American(十一)月

Pollinators Shape Plants to Their Preference我的进化来自你的偏好 Honeybees are the charismatic microfauna of the pollination world. But flies, bumblebees, butterflies and mothsthey all pollinate, too. With varying degrees of success. The po

发表于:2018-12-24 / 阅读(162) / 评论(0) 分类 2017年Scientific American(三)月

Something has grown in my mother's kitchen this Winter. It is tall, beautiful, and bright red. If you're in the room, you can't help but * look at it. It's an amaryllis. It was given to her as a Christmas present, and she has been growing it from a b

发表于:2019-01-01 / 阅读(171) / 评论(0) 分类 英语博客 A cup of English

Bees are Carrying Pesticides into the Worlds Honey Bees are responsible for about 30 percent of the world's food supply. Our fruits and vegetables would not grow without bees. Many farmers use chemical products known as pesticides to protect food pla

发表于:2019-01-03 / 阅读(142) / 评论(0) 分类 2017年VOA慢速英语(十)月

BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. Today we tell about the beauty and science of orchids, some of natures most interesting flowers. Orchids at the U.S. Botanic Garden

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2010年VOA慢速英语(四)月

Where Have All the Bees Gone? 蜜蜂都哪去了? Bees play an important part in the growth of crops. About 4,000 wild bee species are native to North America. Other bee species on the continent were imported from Europe to produce honey. Bees also s

发表于:2019-01-12 / 阅读(135) / 评论(0) 分类 2015年VOA慢速英语(四)月

In the year 2525, Emma told her mom, My teacher said there used to be fish in the oceans. Where did they all go? Her mom said, The fish went where everything else went. They went into people's stomachs. A long time ago, people thought that the supply

发表于:2019-01-22 / 阅读(138) / 评论(0) 分类 英文短篇故事(纽约)

First listen to November 15th 2010 to hear about the kiwifruit disease, PSA. When kiwifruit orchard growers first noticed signs of the PSA disease 20 months ago, there were hopes that this would not be a big problem. However, now more than 1000 orcha

发表于:2019-01-27 / 阅读(129) / 评论(0) 分类 新西兰英语

A group of people, who are against genetically modified plants, destroyed 375 pine trees in Rotorua during Easter. The trees were planted by a government forestry research organization called Scion. Scientists at Scion are trying to develop pine tree

发表于:2019-01-27 / 阅读(170) / 评论(0) 分类 新西兰英语

Each seed of barley ends in a sort of bristle, called an awn. 每个大麦粒的末端都是一根又长又硬的毛,叫做麦芒。 Do you remember how insects help flowers to form their seeds by carrying pollen from one blossom to another? 小朋友

发表于:2019-02-13 / 阅读(150) / 评论(0) 分类 英国学生科学读本
学英语单词
advanced block
Almanor, Lake
Anti-Heparin
antithetic fault
appropriate adult
aquae plumbi
ar-turmerone
asplenium apogamum
assembler level
attractive distance
auditory striae
Baal Shem Tov
Bayes theorem
be bathed in sweat
benefactoresses
berkeley yacc
boiling down
cachexia malarica
call about
camber of a stylus
Cannock
castigatory
cecum vestibuli
circumsciss
cold front thunderstorm
coniglobus arisanus takahasii
conjugate acid-base pairs
conveyer ratchet wheel
countably additive measure
crew-cab
cut and stored for later use
cylindrical grinder machine
diacetoxyscirpenol(anguidin)
Diplococcus magnus
document collection
dot-com bust
driver spring clip
earth magnetic field jamming
empleseur
empty load
esquel
eternacept
exoelectrogen
expressing
final solution
Forville
Gudiyattam
Gwangcheon
heavy price
hyoscyamus muticuss
infosocieties
juneberry hollies
khati
linear metre
majority charge carrier
merchandise production
minimum turning path
money exchange
narrow middle
non grata
non-freezing lubricant
ocellar structure
on the call
optimum interpolation method
overpersuade
panaxes
pavy
peak-load condition
phased in
plays on words
premolar aplasia with hyperhidrosis and premature canities
prevailing gas rate
private income
provision crane
psychrograph
pulse height discrminator window
radio gramophone
raychem
red agate
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round-robin stories
sand-lot
scaphidema trimaculatum
seapoys
server architecture
shahtooshes
shaping moulding
short-range air defense system
speddings
swinging temperature
synsacrums
technical stoneware
three-piece type floating dock
Toricellia angulata
tria juncta in uno
turn plate
umbonatus
uranologists
valve test
waiver of obligation
well-gifted
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