population biology的变形

Is It a Good Idea to Control Population Growth in the World?

Lesson 9 Is It a Good Idea to Control Population Growth in the World? Text What Overpopulation Feels Like We moved slowly through the city in a taxi and entered a crowded slum district. The temperatur

发表于:2018-11-27 / 阅读(236) / 评论(0)

高级口语教程

VOA标准英语2010年-Cell Biologist Elaine Fuchs: Revolutio

Faiza Elmasry | Washington, DC 29 March 2010 Cell biologist Elaine Fuchs is known for revolutionizing the study of skin and for her support of women in science. Children, Elaine Fuchs says, have a natural fascination with science. She remembers that

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VOA标准英语2010年(三月)

VOA常速英语2014--Biologist Creates Portrait Gallery of North American Bees 生物学家绘制北美蜜蜂精美肖像画

Biologist Creates Portrait Gallery of North American Bees 生物学家绘制北美蜜蜂精美肖像画 While the collapse of honey bee colonies in North America is still an unsolved mystery, a biologist with the U.S. Geological Survey is trying to p

发表于:2018-12-16 / 阅读(103) / 评论(0)

VOA标准英语2014年(三月)

高中英语人教版高一下讲解07

[00:04.49]Part 1 [00:07.34]WARMING UP [01:34.41]biology=scientific study of the life and structure of plants and animals [01:52.98]the biology of bacteria biologist [02:04.94]biological washing powder [02:28.30]LISTENING [02:34.25]1. Listen to the ta

发表于:2018-12-18 / 阅读(191) / 评论(0)

高中英语人教版高一

蒋健棠听说学英语 Chapter16:The wildlife biologist

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蒋健棠听说学英语

新标准初中英语九年级(下):UNIT1 World population

[00:01.84]3 Listen and complete. [00:06.70]What have the children done for their project [00:10.30]on population? [00:11.96]Listen and complete their sentences. [00:16.14] [01:04.64]4 Listen and complete. [01:08.78]Listen and fill in the missing info

发表于:2018-12-29 / 阅读(196) / 评论(0)

外研社新标准初中英语九年级

1200个最常用英语口语单词第三十二单元

billion ['biljən] n.（美）十亿，（英）万亿 correct [kə'rekt] a.正确的；v.改正 excuse [iks'kju:z] v.原谅 ground [graund] n.场地，地面 knife [naif] n.小刀 motorcycle ['məutə,saik] n.摩托车 porridge [pɔridʒ] n.粥 seem

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1200个常用英语口语单词（MP3+文本）

英语听力：化学秘密 01 A new start

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得 10 到 30 积分的奖励 ! Thank you ！

发表于:2019-01-01 / 阅读(116) / 评论(0)

化学秘密.Chemical.Secret

DEVELOPMENT REPORT - World Population by 2050

DEVELOPMENT REPORT - World Population by 2050 By Jill Moss Broadcast: Monday, August 30, 2004 This is Gwen Outen with the VOA Special English Development Report. New research shows that Earth will hav

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农业与发展

美国国家公共电台 NPR Biologist Jonathan Losos Explores 'Convergent Evolution' In 'Improbable Destinies'

ROBERT SIEGEL, HOST: Biologist Jonathan Losos and I have at least one thing in common - we were both blown away by the late paleontologist Stephen Jay Gould's 1989 book Wonderful Life. Gould saw evolution as being all about odd contingencies, acciden

发表于:2019-01-16 / 阅读(169) / 评论(0)

2017年NPR美国国家公共电台9月

美文欣赏：如果无法看清现状能力没有价值

During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank. 在一个研究实验中，一个海洋生物学家把一条鲨鱼放进一个大的水箱中，然后投放

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英语美文

美文赏析:如果无法看清现状，能力没有价值

发表于:2019-01-17 / 阅读(102) / 评论(0)

阅读空间

科学美国人60秒 SSS 2016-8-09

So what does rafting down the Grand Canyon have to do with science education? 那么大峡谷漂流而下与科学教育有什么关系呢？ Ann Reid, former research biologist and current executive director of the National Center for Science Educat

发表于:2019-01-20 / 阅读(203) / 评论(0)

2016年Scientific American(八)月

纯正英语一分钟-population

The worlds population is getting bigger and bigger. Theres a population explosion in some countries. Im not sure if this is good or bad. The Earth can only support a limited number of people. One day, the worlds population will be too big to feed eve

发表于:2019-01-21 / 阅读(217) / 评论(0)

纯正英语一分钟

2007年VOA标准英语-World Population Moving More Toward Urban Areas

By Robert Raffaele Washington 10 July 2007 This week marks the United Nations' annual observance of World Population Day (Wednesday July 11th) -- focusing attention on issues surrounding population growth worldwide. The annual event comes on the heel

发表于:2019-02-02 / 阅读(135) / 评论(0)

2007年VOA标准英语（七月）

365个英语简短小故事-277.The Doctor's Perfect Children

Veronica was an only child. Even as a child, she decided that she was going to be a doctor. All her dolls became her patients. All her dollhouses became hospitals for her patients. She spent her early childhood treating her patients for all kinds of

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365个英语简短小故事

VOA常速英语2008年-Palestinian Population Grows by 30 Percent in P

By Jim Teeple Jerusalem 11 February 2008 For the first time in a decade there is a new accurate census of Palestinians living in the West Bank, the Gaza Strip and East Jerusalem. VOA's Jim Teeple has details from our Jerusalem Bureau. The new census

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VOA常速英语2008年（二月）

单词的联想记忆

我是一个英语学习者，在这里就单词记忆和大家分享一下我的学习心得。比如一个比较长一点的单词怎样去记忆：例如 biodiversity 这个词的意思是生物多样性，为什么是这个意思呢？我把它分

发表于:2019-02-07 / 阅读(118) / 评论(0)

英语学习方法

与美国小学生一起学英文第5册第21期:蕾切尔-卡逊

Rachel Carson 蕾切尔-卡逊 Rachel Carson was a marine biologist and a nature writer. 蕾切尔-卡逊是海洋生物学家和自然作家。 She really cared about nature and enviroment. 她很关切自然和环境。 She spent a lot of time read

发表于:2019-02-11 / 阅读(115) / 评论(0)

与美国小学生一起学英文第5册

英语听力精选进阶版 6245

Sharks attack tourists at holiday resort 埃及红海海域鲨鱼出没攻击游客 What do you expect when you go on holiday? Probably to relax, have a good time and above all, stay safe. Sometimes natural disasters, such as a hurricane or an erupti

发表于:2019-02-21 / 阅读(83) / 评论(0)

英语听力精选进阶版

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学英语单词

anterior gluteal nerve

bearing retaining ring