音标：[ˈbeɪtsi:ən] ；

警戒拟态,贝氏拟态(指甲种动物摹拟乙种动物的形式、斑纹等以自卫或攻击他物,在昆虫中尤为多见)

美国有线新闻 CNN 利用无人机拯救生命

Of course, in this century, uses for drones go far beyond war, to include surveillance, exploration, photography, racing. And one young inventor is hoping that smart drones will be able to navigate dangerous places, avoiding obstacles while searching

发表于:2018-12-20 / 阅读(114) / 评论(0)

CNN美国有线新闻2018年6月

跟希哥学英语第105期:Double Star 双星

Double Star Chapter One If a man walks in dressed like a hick and acting as if he owned the place, he's a spaceman. It is a logical necessity. His profession makes him feel like boss of all creation; when he sets foot dirtside he is slumming among th

发表于:2018-12-28 / 阅读(137) / 评论(0)

跟希哥学英语

胡敏读故事记单词托福词汇150

150 enough is enough Betty Glover was in a militant mood as she approached to Brian, her husband of 25 years. Your idea of what you call our happy matrimony has been nothing but a mirage, a figment of your minimalist imagination. The amount of money

发表于:2018-12-30 / 阅读(148) / 评论(0)

胡敏托福词汇记单词

托福听力短文 II-09-2

(WA) Did you know you can catch a mood? A bad mood isn't spread by a virus like the flu is, but it can be contagious. Moods sort of drift from person to person unconsciously --- slight, unintentional signals carry the mood. You've probably experienc

发表于:2018-12-30 / 阅读(114) / 评论(0)

托福听力短文

SSS 2008-02-05

This is Scientific Americans' 60-Second Science. Im Cynthia Graber. Thisll just take a minute. When is an ant like a piece of fruit? When its infected by a parasite. Researchers affiliated with the Smithsonian Tropical Research Institute discovered t

发表于:2019-01-08 / 阅读(148) / 评论(0)

Scientific American(二)月

SSS 2008-03-05

This is Scientific Americans 60-Second Science. I'm Steve Mirsky. Got a minute? Are smarter people drown to music, theater and dance? Or does arts training in childhood change the brain in positive ways? In 2004, the philanthropic Dana Foundation cre

发表于:2019-01-08 / 阅读(168) / 评论(0)

Scientific American(三)月

托福阅读文章常见题材思路及词汇

托福阅读文章常见题材思路及词汇 TOEFL阅读有一些常见高频题材，这些题材下面会有经常考到的固定词汇和思路，整理出来供大家分享。生物类：迁徙动物migrate 群居动物 social animal 独居动物

发表于:2019-01-17 / 阅读(132) / 评论(0)

实用英语

经济学人164:春天第一只雀鹰

Science and technology 科学技术 Mimicry 模仿 The first sparrowhawk of spring 春天第一只雀鹰 To obtain better access to warbler nests, cuckoos mimic raptors 为了更好地抢占莺的巢穴，杜鹃通常会模仿成猛禽的样子 THE r

发表于:2019-01-26 / 阅读(126) / 评论(0)

经济学人科技系列

经济学人101:模仿春天第一只雀鹰

Science and Technology Mimicry The first sparrowhawk of spring 科技模仿春天第一只雀鹰 To obtain better access to warbler nests, cuckoos mimic raptors 为了更好地抢占莺的巢穴，杜鹃通常会模仿成猛禽的样子 THE resembl

发表于:2019-01-26 / 阅读(156) / 评论(0)

经济学人科技系列

经济学人94:模仿春天第一只雀鹰

发表于:2019-01-26 / 阅读(142) / 评论(0)

经济学人科技系列

科学美国人60秒 SSS 虎鲸文化通过模仿我们而揭示出来

Killer Whale Culture Revealed By Mimicking Us Killer whales, also called orcas, are like dolphins and belugasthey all have a wide vocal repertoire. But orcas also have uniquedialects among different pods. Which suggests the animals can learn new and

发表于:2019-02-13 / 阅读(166) / 评论(0)

2018年科学美国人2月

双语有声阅读：植物拟态

Mimicry in Plants Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the appearance of stones. These strange adaptations to

发表于:2019-02-17 / 阅读(107) / 评论(0)

双语有声阅读

新托福阅读中常见的背景材料生物类和地质学

复习新托福阅读最好了解一些常考的托福阅读考试背景类型，尤其是学科分类，对于备考新托福阅读非常有帮助。生物类群居动物 social animal 独居动物 solitary solitude One Hundred Years of Solitude独特

发表于:2019-02-26 / 阅读(307) / 评论(0)

托福英语

【趣谈英语】关于黑脉金斑蝶的奇事-A Myth About Monarchs

Pre-Listening Vocabulary ingest: to eat or drink tell apart: to distinguish a difference between people and things hind: back non-toxic: not poisonous resemble: to look alike mimicry: a survival technique where one species evolves to resemble another

发表于:2019-02-27 / 阅读(301) / 评论(0)

趣谈英语

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a man of wax

advanced life support