氢厂

太阳科普第6期

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条，都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(204) / 评论(0)

太阳科普

Uses Hydrogen1 as Fuel2

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(193) / 评论(0)

VOA2003（上）-科技导航

我们该选择死亡吗？

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(164) / 评论(0)

英语演讲

UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant

[ti:UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant] [0:00.241]UNIT 2 第二单元 [0:01.877]Plant a Plant! 培育植物 [0:03.754]Lesson 12: 第12课： [0:05.391]Pretty Little Plant 漂亮的小植物 [0:08.856]You need two groups to sing this

发表于:2018-12-13 / 阅读(244) / 评论(0)

河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 10: Plant Parts

[ti:UNIT 2 Plant a Plant! Lesson 10: Plant Parts] [0:00.363]UNIT 2 第二单元 [0:02.105]Plant a Plant! 培育植物 [0:03.775]Lesson 10: 第10课： [0:05.444]Plant Parts 植物的组成部分 [0:07.100]THINK ABOUT IT! 想一想 [0:08.539]How many

发表于:2018-12-13 / 阅读(254) / 评论(0)

河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 13: Why Are Plants Important?

[ti:UNIT 2 Plant a Plant! Lesson 13: Why Are Plants Important?] [0:00.680]UNIT 2 第二单元 [0:02.359]Plant a Plant! 培育植物 [0:04.357]Lesson 13: 第13课： [0:06.716]Why Are Plants Important? 为什么植物很重要？ [0:09.689]THINK ABOUT

发表于:2018-12-13 / 阅读(228) / 评论(0)

河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 14: People and Plants

[ti:UNIT 2 Plant a Plant! Lesson 14: People and Plants] [0:00.244]UNIT 2 第二单元 [0:01.985]Plant a Plant! 培育植物 [0:03.795]Lesson 14: 第14课： [0:06.092]People and Plants 人和植物 [0:08.334]THINK ABOUT IT! 想一想 [0:09.663]Which

发表于:2018-12-13 / 阅读(226) / 评论(0)

河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?

[ti:UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?] [0:00.532]UNIT 2 第二单元 [0:01.935]Lessons 9～16 第9~16课 [0:04.780]Plant a Plant! 培育植物！ [0:06.829]You Will Learn 你将学到 [0:09.105]Functions 实际应用 [0:10.888]Ta

发表于:2018-12-13 / 阅读(261) / 评论(0)

河北教育初中英语（初中起点）八年级下册

:UNIT 2 Plant a Plant! Lesson 11: Look after Your Plant!]

[ti:UNIT 2 Plant a Plant! Lesson 11: Look after Your Plant!] [0:00.243]UNIT 2 第二单元 [0:02.058]Plant a Plant! 培育植物 [0:03.833]Lesson 11: 第11课： [0:05.326]Look after Your Plant! 照顾你的植物！ [0:08.070]Has your seed sprouted?

发表于:2018-12-13 / 阅读(245) / 评论(0)

河北教育初中英语（初中起点）八年级下册

Fire breaks out at Texas nuclear power plant

HOUSTON, Jan. 8 (Xinhua) -- Fire broke out at a nuclear power plant Tuesday in the U.S. state of Texas, forcing one of two units to be shut down, U.S. media reported. No injuries were reported in the fire, which erupted in the Unit 2 main transformer

发表于:2019-01-07 / 阅读(170) / 评论(0)

英语新闻

英语听力文摘 English Digest 70、细菌可除臭?

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(149) / 评论(0)

英语听力文摘 English Digest

纽约车展上电动汽车来势汹汹

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(161) / 评论(0)

英语新闻

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(243) / 评论(0)

农业与发展

联合国考虑对朝鲜新制裁

SEOUL/WASHINGTONThe U.N. Security Council said Wednesday that it was working to craft new sanctions against North Korea after its latest nuclear test, while the United States and other world powers voiced skepticism about Pyongyang's claim that the u

发表于:2019-02-04 / 阅读(113) / 评论(0)

英语新闻

托福考试：TOEFL模拟试题

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(195) / 评论(0)

托福英语

雅思单词前缀整理

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(206) / 评论(0)

雅思英语

我们该选择死亡吗

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(207) / 评论(0)

英语美文

Jack and the Bean Plant

Jack and the Bean Plant I Once there was a poor woman. She had one son, whose name was Jack. Jack had no father; a giant had killed him. Jack's mother had one cow, whose milk they sold. They had no money but the money which they got for the milk. One

发表于:2019-02-09 / 阅读(198) / 评论(0)

趣味英语

各种花样的风筝怎么说？

9月16日是墨西哥馆日，墨西哥馆五颜六色的风筝森林吸引了不少人的眼球，你知道小小的风筝里有什么大学问吗？其实风筝也有很多种分类哦，一起来看看吧。说到kite这个单词，这也许是我们

发表于:2019-02-18 / 阅读(221) / 评论(0)

英语口语

朝鲜宣布成功进行首次氢弹试验

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实，朝鲜成功的进行了

发表于:2019-02-18 / 阅读(143) / 评论(0)

英语新闻

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学英语单词

(input-output) operation

acataphasias

al mundafan pass

ammonium peroxydisulfate