潜在光合能力

美国科学60秒 SSS 2012-12-28

When autumn rolls around, the leaf peepers come out in force. Armed with digital cameras, they record the most spectacular displays of fall foliage. Well according to a study in the journal Functional Ecology [Toshie Mizunuma et al., The relationship

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新视野大学英语读写教程词汇第一册

VOA慢速英语2016--“增压植物”或能大量增产

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

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VOA常速英语2015--浮游生物的粪便帮助科学家预测气候变化

Plankton Poop May Help Scientists Predict Climate Changes 浮游生物的粪便帮助科学家预测气候变化 Scientists trying to predict future changes in our climate are using every possible source of data to make their calculations. Lately, th

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SSS 2011-04-22

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Most plants capture sunlight. And the results are usually green. Because in photosynthesis, plant chlorophyll uses wavelengths of blue and our sun's ab

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美国科学60秒 SSS 2012-11-30

You might say blue-green algae are optimists: they put things in the best possible lightliterally. Actually, the organisms arent really algae. Theyre photosynthetic ocean bacteria. And they can fine-tune their photosynthetic apparatus to take advanta

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实用英语

SSS 2008-08-01

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

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海洋雪有助预测气候变化

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VOA标准英语2016年(一月)

美国国家公共电台 NPR Ad For Nice Living: Discover Trees, Now With Chlorophyll

AUDIE CORNISH, HOST: Need a distraction from the news? ARI SHAPIRO, HOST: We have one. CORNISH: It's a reminder of the good things in life that are free. SHAPIRO: Another commercial for Nicer Living. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED MAN

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雅思英语

U.S. firm says it can "grow" diesel

BEIJING, March 1 (Xinhuanet) -- A biotechnology(生物技术) company says it can produce diesel using the same ingredients(配制成分) that make grass grow, media reported on Monday. The Massachusetts company Joule Unlimited has created a genetica

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实用英语

China's Three Gorges hits full capacity

YICHANG, Oct. 30 (Xinhua) -- China's Three Gorges Dam on Sunday reached its designed highest mark, the second time for the world's largest water control and hydropower project to run at full capacity. The water level hit 175 meters at 5 p.m. after st

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英语新闻

学个词Learn a Word 第1343期　capacity

今天我们要学的词是capacity。 Capacity, 容量。 The stadium was near capacity for last night's season opener, 昨晚赛季首场比赛，几乎座无虚席。 The campus housing has reached its capacity, 学校宿舍已经满员。 The Bei

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科学美国人60秒 SSS 提高光合作用能使作物增加产量

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2018年科学美国人4月

Science names HIV study 2011 Breakthrough of Year

WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year. The study found that if HIV-infected heterosexual individuals begin taking

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英语新闻

雅思阅读判断题--逻辑“三段论”更好解

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英语听力文摘 English Digest 244、光呼吸作用之谜

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英语听力文摘 English Digest

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absolute damping

adiaphoron

adjustable comb clamp