单词：plant growth and flowering
单词：plant growth and flowering 相关文章
by Caty Weaver Broadcast: July 4, 2003 This is Steve Ember with the VOA Special English Environment Report. Scientists in the United States say plant life has increased on Earth in the past twenty yea
VOA2003（下）-环境与健康
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
新东方CET6阅读
AGRICULTURE REPORT - Growing 'Love Apples,' Better Known These Days as Tomatoes By Mario Ritter Broadcast: Tuesday, October 18, 2005 I'm Shep O'Neal with the VOA Special English Agriculture Report. Pl
农业与发展
The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit
新东方背诵文选
Supercharged Plants May Mean More Crop Production 增压植物或能大量增产 One day, supercharged plants may help feed people around the world. Supercharged plants are ones that grow faster than normal plant life. Scientists can speed up the gro
2016年VOA慢速英语(十二)月
Everybody should take up gardening as a hobby. We can all get back to nature. Thousands of years ago we all did a bit of gardening. Its one of the most relaxing hobbies I can think of. Its also very satisfying. I get very excited about gardening. I l
纯正英语一分钟
Globe Trotting Tropicals Plants were world travelers, long before tourists like you and me, were able to fly off to vacation around the world. When Columbus sailed west, he was seeking precious spices of the Indies. He missed his original destination
英语时差8，16
Everybody should take up gardening as a hobby. We can all get back to nature. Thousands of years ago we all did a bit of gardening. Its one of the most relaxing hobbies I can think of. Its also very satisfying. I get very excited about gardening. I l
听一分钟英文-G
The Nightlife Of Plants Most plants grow buds, flower, or lie dormant at specific times of year. What Triggers These Seasonal Changes? Temperature and rainfall often play a role, but the most important factor to many plants is the length of the day.
英语听力文摘 English Digest
By Mario Ritter Broadcast: September 9, 2003 This is Steve Ember with the VOA Special English Agriculture Report. For many people, growing crops on a small piece of land is not a business. For them, a
VOA2003（下）-农业与经济
This is the VOA Special English Agriculture Report. Pruning makes no sense. You cut off parts of a plant. Yet the plant is supposed to grow back even better than before? This demands an answer. The explanation begins with the apical bud. This bud is
VOA慢速英语2009年（十）月
Agriculture Report - The Seeds of Weed Control Advice for suppressing the growth of unwelcome plants. Transcript of radio broadcast: 17 March 2008 This is the VOA Special English Agriculture Report. When is a plant a weed? When its undesirable quali
VOA慢速英语2008年（三）月
Getting a Firm Grip on Weed Control This is the VOA Special English Agriculture Report. When is a plant considered a weed? Experts at Penn State University have a simple answer: When the undesirable qualities outweigh the good qualities. Consider the
2013年VOA慢速英语(五)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
2015年VOA慢速英语(四)月
By Carol Pearson Washington 23 May 2008 Breast cancer researchers have recently come to some important conclusions for women. The universities of Chicago and Toronto released a study that shows a link between the spread of breast cancer and vitamin D
VOA标准英语2008年（五月）
Bamboo's tough reputation is such that another bamboo specialist was known by the Chinese as the iron-eating animal. The giant panda is famous for its exclusive diet. Giant pandas are thought to have originated in Southwest China millions of years ag
英语听力：文化博览2008年
MUNICH, Germany, Dec. 27 (Xinhua) -- German car producer Audi AG announced Saturday to expand its investment program to 24 billion euros (29 billion U.S. dollars) at home and abroad from 2015 through 2019. The total investment volume comprises about
英语新闻
Science and technology 科学技术 Robot plants Putting down roots 植物机器人 落地生根 A robotic model of what plants get up to under the surface 模仿植物根部工作的机器人模型 PEOPLE often forget, when looking at a garden, mead
经济学人科技系列
Hello and Welcome to News and Reports on China Radio International. In This Edition Chinese President Hu Jintao delivers a speech at the CEO summit of the APEC Summit calling on Asia-Pacific economies to make all efforts to achieve a balanced, inclus
2011CRI中国国际广播电台
听力文本 Recording 33 录音33 In today's lecture, I'm going to talk about the part that plants have played in our history, something most of us probably never give any thought to. 今天这节课，我将会讲讲植物在历史中扮演的角色，
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