单词：long-day plants
单词：long-day plants 相关文章
Vertical Gardens 垂直花园 by Marcus Maurice More than 30 years ago, a French scientist named Patrick Blanc went to Thailand to study plants. This adventurous young man traveled to the heart of a tropical rainforest and set up a platform at the to
常春藤解析英语
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
The four scientists -- three men and one woman -- are taking part in this experiment designed to determine how well food, water, and oxygen can be used and recycled under controlled conditions. The test of the controlled ecological life support syste
2016CRI中国国际广播电台
Like a science fiction time traveler, an arctic plant of the late Pleistocene age, over thirty one thousand years old, is growing again after a long frozen sleep. 犹如科幻小说里的时间旅行者，一种曾存活在更新世晚期的极地植物
初学者听力文摘精选
April 14 is Plant Appreciation Day (PAD). This is when you appreciate just how important plants are to us. Few of us ever stop to think just how vital plants are to our survival. Without them, we wouldnt be here. Plants change the CO2 in the air into
英语课程学习计划和讲义
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
He loved his plants. His plants were in pots. There were 10 pots in back of the house. There were eight pots in front of the house. There was a different plant in every pot. No plants were the same. They were all different. They were all beautiful. I
原版英语小短文
What will you do for your mum on Mother's Day? Does your mother know how much you appreciate her? Well, Mothers Day is the time to show her. Its a chance to say thank you, or to tell your mum how much you love her. In Britain, Mothers Day, or Mother
Take Away English
He loved his plants. His plants were in pots. There were 10 pots in back of the house. There were eight pots in front of the house. There was a different plant in every pot. No plants were the same. They were all different. They were all beautiful. I
简单慢速英语阅读
For a long time, conventional wisdom said that we should drink eight glasses a day. 长久以来，一般观念都认为我们每天要喝8杯水， That estimate has since been fine-tuned. 但这个数据已被重新调整过。 Now, the consensus i
TED演讲教育篇
Totem 图腾 Do you think that animals or plants also have spirits? 你觉得动植物也有灵魂吗？ A long time ago, some people believed that animals and plants had spirits and supernatural powers. 很久以前，有些人认为动植物不仅有
与美国小学生一起学英文第11册
AS IT IS 2016-08-25 For People Too Busy to Garden, FarmBot Can Help In a small home garden, about 1.5 meters wide and 3 meters long, a robotic device called the FarmBot is busy planting vegetable seeds. The FarmBot will control the soils moisture, wa
2016年VOA慢速英语(八)月
Ancient Tooth Plaque Reveals Diet Long before the development of agriculture, our prehistoric ancestors had a good knowledge of plants not just for food, but for medicine. Researchers found evidence of this by studying some ancient teeth found in Cen
VOA标准英语2014年(七月)
This is because they grow beneath the ground, where the sun's light does not reach them. The green colour of plants is produced by the action of the sun's light. Plants grown in the dark are white and unhealthy. 这是因为它生长在阳光无法照射
英国学生科学读本
Lesson 74 Only A Weed 第74课 蒲公英 All through the summer, and during spring and autumn as well, our meadows and waste places are thickly dotted with the bright-yellow flowers of the common weed called the dandelion. And even throughout the win
英国学生科学读本
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
英文短篇故事（纽约）
By Cynthia Kirk ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii This is the VOA Special English ENVIRONMENT REPORT. Experts say the American state of Hawaii has been invaded by a small fro
健康与环境
Scientists: Gene Editing Should Stay in Laboratories 科学家称基因编辑技术应该留在实验室 Scientists are debating how to limit their newly-discovered power to change genetic structure. Scientists already modify the genes of farm animal
2016年VOA慢速英语(七)月
Voice 1 Hello, Im Marina Santee. Voice 2 And Im Ruby Jones. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 I read of climate c
环球英语 Spotlight
It is a natural human impulse to think of evolution as a long chain of improvements, 人们自然会不由自主地想到，进化是个不断完善的漫长过程， of a never-ending advance toward largeness and complexityin a word, toward us. 一个
万物简史