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(640) / 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(240) / 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(216) / 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(81) / 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(115) / 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(107) / 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(122) / 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(111) / 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(117) / 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(82) / 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(151) / 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(133) / 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(141) / 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(123) / 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(117) / 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(107) / 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(111) / 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(99) / 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(136) / 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(123) / 评论(0) 分类 英国学生科学读本
学英语单词
active orientation
adenopharyngitis
agaune
all-aluminum
annular fuel compact section
aotocatalyst
apocynum cannabinums
artemotil
bench mat
Braeriach
Broyden's 1965 method
butyl oxide
carpholite
catodont
Cinderella girl
civil offence
computer reliability
conus moreleti
crown clades
detrital cone
diffusion-controlled step
dundubhi
emergency ration storeroom
Emsdorf
enclaves
evasion of registration
ever-large
evermind
excellent growing conditions
factor level
fakes out
fertilization stasis (boyes & walker 1954)
fireflaught
folded chain model
grew out of
heat shunt
hee-hawing
interfacial polycondensation
irreplaceably
isovist
kaffir cat
Kenn, River
keraphyllocele
kunal
linear ordering
litchi chinenses
local refraction
manor
marmala-water
melorra
Muramvya
new window
nicotinamide methyltransferase
nitrogranulogen
no better than
number of cycles per second
oblique camera
odso
oldwives
ossipite
Ouled Mahmoud
out of your league
overshot stacker
oversprings
oxeladin
paste up
plant-likest
process by which plants make sugar
production standard
QDA, q.d.a.
reactance regulator
readiness posture
reeger
ricanula sublimata
Ripperologist
Roscoe.
salingopalatine
save energy
scenario manager
Schemacha
seat spacing
secondary carcinoma of mammary gland
shipping specification
specialized company
spermarium
submerged dyke
superdip
t.stewart
tensor light
test organism
travel of contact finger
truebloods
TTBWR
two-box-type body
unfeignedly
Unispiro
visual sensations
vondelle
water-treatments
wave toward
wirescape
Yurika