俄勒冈青蛙数量急剧减少的调查分析

21 俄勒冈青蛙数量急剧减少的调查分析 DATE=5-11-01 TITLE=ENVIRONMENT REPORT - Oregon Frog Study BYLINE=Cynthia Kirk （Start at 59

美国语文第一册 第7期:瞧圆木上的青蛙

See the frog on a log. 瞧圆木上的那只青娃。 Rab sees the frog. 拉伯看到了青蛙。 Can the frog see Rab? 青娃能着见拉伯吗？ The frog can see the dog. 青蛙能看到那只狗。 Rab ran at the frog. 拉伯跑向这只青娃。

英国学生科学读本 第93期:蝌蚪与青蛙(3)

The tongue of the frog is most useful to the creature in catching the flies and other small insects on which it feeds. 青蛙的舌头非常有用, 就是依靠它来捕食苍蝇与其他小型昆虫。 It is joined to the lower jaw in front, and not

英国学生科学读本 第93期:蝌蚪与青蛙(2)

The tadpole is now able to walk, and to breathe the air just as we do, so it crawls out of the pond and lives in the damp grass. 现在, 蝌蚪能够爬行了, 而且可以像人类一样进行呼吸。因此, 它们会离开池塘, 进入到潮湿的草

英国学生科学读本 第93期:蝌蚪与青蛙(1)

Lesson 93 Tadpole And Frog 第93课 蝌蚪与青蛙 Children who are fond of country walks, and who use their eyes well, 喜欢在乡村漫步并且善于观察的孩子们 will be sure to notice in early spring little lumps of jelly floating on some

商务英语口语关于数量方面精彩句子

For such a big sum, we should attach importance to it. 数目如此之大，我们将予以重视。 Lets talk about the problem of quantity. 我们谈谈数量的问题吧。 Youll issue a certificate of quantity and weight. 你们必须出具数量和

商务口语：怎样谈论数量和种类

星级典句： 第一句：How many do you intend to order? 你们想订多少？ A: How many do you intend to order? 你们想订多少？ B: I want to order 900 dozen. 我们想订900打。 A: The most we can offer you at present is 600 dozen. 目前

国家地理:Picky Frog Mom 挑剔的青蛙妈妈

Here in the South American rainforest, you're watching what should be a joyous event, the laying of hundreds of eggs by a mother frog. In truth, only a very few of these eggs will blossom into full frogdom. Drought will take a toll, and predators wil

原来青蛙还不会落地就先学会了跳跃(有声)

Frogs from an ancient lineage reveal that the amphibians developed the ability to jump before they had mastered landing Youd think an animal that hops would know how to land. But for a kind of frog, thats not the case. Imagine trying to catch a frog.

60秒科学:利用录音发现青蛙的数量可能被高估了

Frog census volunteers misinterpreted recorded frog sounds in the field, leading researchers to suspect that frog populations may be even lower than thought. Declining frog populations are considered an indicator of environmental damage. But new rese

对人类基因数量的质疑

97 对人类基因数量的质疑 SCIENCE REPORT September 20, 2001: Number of Human Genes QuestionedBy George Grow （Start at 1'01

主谓一致：不确定数量的名词作主语

前文中，小编与大家一起学习了：当主语是表示确定数量的名词时，主谓一致该如何决定。那么，若主语是表示不确定数量的名词时，主谓一致又要遵循那些规则呢?下面主要介绍几种表示不确

数量 Quantity

数量 Quantity （一） Let's talk about the problem of quantity. 我们谈谈数量的问题吧。 You'll issue a certificate of quantity and weight. 你们必须出具数量和重量证明书。 The package number and quantity are identical with

外贸常用英语词汇-数量条件

英语笑话听力+文本：一只青蛙的真命天女

【生词预览】 psychic巫师，hotline热线，croak呱呱叫 【笑话原文】 The Girl in A Frogs Life A lonely frog telephoned the Psychic Hotline and asked what his future holds. His Personal Psychic Advisor tells him， You are going to mee

一只孤独青蛙的美好未来

英语故事:一只特立独行的青蛙

Wanda, the neighborhood witch, was a good witch and had been one for about 221 years. Her fondest dream was to become a fairy godmother. She had been going to the Fairy Godmother Academy for 103 years, learning fairy godmother magic: how to turn pump

警报！ 过去40年野生动物数量减半

From the forest elephants of Africa, to Indias tigers and even our own harbour seals, wildlife is losing the battle for survival all over the world. 无论是非洲森林象、孟加拉虎（又名印度虎）还是斑海豹，世界上所有的野生动

美国文化脱口秀 第581期:《纽约时报》笔下的旅行青蛙

大家有没有玩过最近很火的游戏旅行青蛙？连《纽约时报》都报道了这款游戏在中国的盛况。今天Jenny和Adam要和大家一起来读一读旅行青蛙的报道。 A few short weeks after its release, a Japanese mobile

TED演讲视频:和女儿谈青蛙的繁殖

八岁的女儿开始学习青蛙的繁殖，并提出一些非常棘手的问题时， 喜剧演员朱莉娅斯威尼使尽解术仍不得不撒了个小谎。