• [英语听力] Earth&Sky:水和能量之间的交换

    听写填空,只写填空内容,不抄全文,5-10句,不用写标号,注意标点,口语中因结巴等问题造成的重复单词只写一遍~Hints:thermoelectrichybrid Lisa Epifani: You are listening to Lisa Epifani Assistant Secretary ...

    2012-01-07 07:00
  • [英语听力] 科学60秒:分解水的细菌

    【全文听写】 Hints: MIT Angela Belcher M13 catalyst-iridium porphyrins Nature Nanotechnology H2One main goal in the renewable energy field is to find an efficient, inexpensive way to split wate...

    2011-12-23 10:00
  • [英语听力] 科学60秒:分解水的细菌

    【全文听写】 Hints: MIT Angela Belcher M13 catalyst-iridium porphyrins Nature Nanotechnology H2One main goal in the renewable energy field is to find an efficient, inexpensive way to spl

    2011-12-23 10:00
  • [英语听力] 科学60秒:分解水的细菌

    【全文听写】 Hints: MIT Angela Belcher M13 catalyst-iridium porphyrins Nature Nanotechnology H2One main goal in the renewable energy field is to find an efficient, inexpensive way to spl

    2011-12-23 10:00
  • [英语阅读] 宾夕法尼亚州的水龙头,你出的到底是水还是火?

    在宾夕法尼亚州北部,不少居民都面临着一个生活问题:水龙头里出的不光是水,还出甲烷。格兰维尔萨米特的Sherry Vargson就深受其害:她家的水龙头“出气”很多,以至于她能够直接拿出一根火柴在水龙头下方点燃

    2011-10-07 09:45
  • [英语听力] Earth&Sky:水循环

    听写填空,只写填空内容,不抄全文,3-5个句子,不用写标号,注意标点~ We recently visited the Austin Children's Museum in Texas to record your science questions. This one is from Jeana Lungwitz. Je...

    2011-08-18 06:30
  • [英语听力] Earth&Sky:水与粮食

    听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~ Today, Ken Cassman at the University of Nebraska on the subject of water for food.Cassman is a professor of agronomy – the sci...

    2011-07-23 06:30
  • [英语听力] Earth&Sky:石油提取过程中能量与水的权衡

    听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~ A rocky substance called oil shale is in western North America. Experts say they can extract usable oil from this shale, but g...

    2011-07-22 06:30
  • [英语听力] 科学60秒:加点水,更黏稠?!

    Usually, we trust ___1___ to solve problems. Is a runny mixture too thick? Add some fluid. That’ll make it runnier. Except when the fluid makes it thicker. Scientists now think they know why. Th...

    2011-07-16 10:00
  • [英语听力] 科学60秒:地月水不同 彗星释缘由

    The Apollo moon missions ended almost 40 years ago. But for lunar scientists, they're ____1____. Researchers studying rocks brought back by astronauts have found that the moon's scarce water has ...

    2011-07-04 10:00