陆地生态系统

E.T. The Extra-Terrestrial

Who would have ever thought that a creature with an extending 1) turtle-like neck, a finger as bright as a nightlight, or a 2) penchant for Coors beer would translate into hundreds of millions of doll

发表于:2018-11-28 / 阅读(373) / 评论(0)

疯狂英语2002年

Decrease in Shark Population Harms Ocean 1)Ecosystems

Broadcast: Jan 16, 2003 Experts say one of the world's most feared, but misunderstood, creatures is under 2) assault by fishermen. A new study of all types of sharks finds that there are fewer of them

发表于:2018-12-08 / 阅读(177) / 评论(0)

VOA2003（上）-科技先知

VOA标准英语2012--Report: Ecosystems More Stressed Than Ever

Report: Ecosystems More Stressed Than Ever When Super Storm Sandy ravaged the U.S. East Coast and inundated New York City in late October, many wondered if such extreme weather events might be linked to climate change, the gradual warming of the plan

发表于:2018-12-08 / 阅读(257) / 评论(0)

VOA标准英语2012年(十二月)

科学美国人60秒 SSS Polar Bears Can't Just Switch to Terrestrial Food

When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea

发表于:2018-12-24 / 阅读(201) / 评论(0)

2016年Scientific American(十)月

科学美国人60秒 SSS Waste Amphetamines Alter Underwater Ecosystems

Last week, tens of thousands of gallons of sewage gushed into urban streams in Baltimore, because of leaky pipes and flooding rains. And when that happens, it's not just organic matter and microbes that get flushed into aquatic habitats. It's drug re

发表于:2018-12-24 / 阅读(150) / 评论(0)

2016年Scientific American(八)月

电信类英语词汇表大全-29

中文英文缩写等效（值）忙时呼叫 Equated Busy Hour Call EBHC 等效功率流密度 Equivalent Power Flux Density EPFD 等效随机业务 equivalent random traffic 等效误码率 Equiv

发表于:2019-01-03 / 阅读(169) / 评论(0)

电信英语

SSS 2008-06-04

This is Scientific American's 60-Second Science, I am Cynthia Graber.This'll just take a minute. On earth, snow crystals as we all know, form from frozen water. But scientists believe there're also flakes that fall on Mercury, and they're made of iro

发表于:2019-01-07 / 阅读(199) / 评论(0)

Scientific American(六)月

万花筒 2011-03-30&03-31 美科罗拉多州惊现UFO

We're gonna have that little Colorado town. That is on the map now for being a UFO magnet. Last week, the people of Lafayette, population of 26,000, looked up the night's sky and saw a strange triangular formation of lights. The video has gone viral,

发表于:2019-01-07 / 阅读(167) / 评论(0)

万花筒2011年

美语听力 English Cafe 352

Topics: Movies - E.T.: The Extra-Terrestrial; The MacArthur Fellows Program; important versus significant versus critical; tough; navel-gazing Words: extra-terrestrial alien to be stranded to lure psychic highest-grossing foundation genius merit no s

发表于:2019-02-15 / 阅读(153) / 评论(0)

美语听力 English Cafe

加州语文教材 G3 V3 Ecosystems in Balance 10

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发表于:2019-02-20 / 阅读(208) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 09

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发表于:2019-02-20 / 阅读(942) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 08

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发表于:2019-02-20 / 阅读(242) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 07

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发表于:2019-02-20 / 阅读(213) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 05

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发表于:2019-02-20 / 阅读(231) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 04

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发表于:2019-02-20 / 阅读(233) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 03

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发表于:2019-02-20 / 阅读(227) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 02

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发表于:2019-02-20 / 阅读(242) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 01

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发表于:2019-02-20 / 阅读(260) / 评论(0)

加州语文教材California Treasures G3

加州语文教材 G3 V3 Ecosystems in Balance 06

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发表于:2019-02-20 / 阅读(228) / 评论(0)

加州语文教材California Treasures G3

GRE试题一(2)

16. UPBRAlD : REPROACH :: (A) dote : like (B) lal: : stray (C) vex : please (D) earn : desire (E) recast : explain Directions: Each passage in this group is followed by questions based on its content.

发表于:2019-02-21 / 阅读(304) / 评论(0)

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学英语单词

abodeless

Alierta

aluminium sulfocyanide