新英语900句之生活篇 Lesson32:THREAT威胁

466.That dog is very threateningv. 那条狗非常吓人。 467.The idea of change threatensw some people. 改变让一些人感到不安。 468.He was warned about a possible threat. 有人警告了他可能的威胁。 469.Predatorsx were a threat to the herd. 食肉动物对牧群是

科学美国人60秒 SSS 2014-10-21

Coyotes. In the last two decades theyve become common in almost every North American metropolitan area. Stanley Gehrt is a wildlife ecologist at Ohio State University who studies urban coyotes in Chicago. He spoke October 20th at the ScienceWriters20

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—18

This is a known mindless killer. The shark is smart. It pitches up at the peak of the turtle nesting season, and simply waits for the tide to deliver its food.-Ah, look at that so distinctive...have the boat. Tigers are a big fan with all manner inte

未来水环境让现有鱼类很难生存(有声)

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

VOA慢速英语2018 专家称鸟儿通过倾听学习彼此的“语言”

Birds Learn Each Others Languages by Listening, Experts Say Wild animals are known to listen to each other for warnings that predators are near. Some birds, for example, flee when neighbors make a loud noise to announce a snakes presence. 众所周知，

美国科学60秒 SSS 2012-10-05

A rabbit might outrun a fox, but stalks of wheat arent making any quick getaways. Plants, for the most part, dont flee from predators. But some primitive marine plants are breaking the rules. Marine scientists at the University of Rhode Island School

美联社新闻一分钟 AP 2012-09-22

1. A newly released Obama campaign video shows voters are responding to a video of Mitt Romney, saying that 47% of people who will vote for Obama believe that they are victims. One woman in the Obama ads says the remarks made her feel sick to her sto

VOA标准英语2012--'Creatures of Light' Glow in New Exhibit

'Creatures of Light' Glow in New Exhibit Of all the wondrous survival strategies natures creatures have evolved, one of the most dazzling is the ability of some animals to generate light to find their prey, avoid becoming prey and to attract a mate.

VOA标准英语2009年-Catholic Church Welcomes Anglicans

By Steve Norman 25 October 2009 Pope Benedict XVI Pope Benedict XVI has unveiled a new Roman Catholic Church initiative which will let Anglicans, often known as Episcopalians in the United States, practice Catholicism while keeping many of their Ang

英语听力：自然百科 Coral Reefs 岌岌可危的珊瑚礁

The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor an

英语听力：自然百科 冰冻星球 前往地球尽头—15

The randoms of the sea ice are occupied by sun- bathing seals that have been here all winter. But the new arrivals're following the retreating ice edge and they have come here to hunt. Killer whales, the oceans' top predator. Killers are like wolves,

【英语时差8,16】科学家在南极考察时发现巨大海洋生物

Scientists made surprising discoveries of giant-sized specimens of marine life during a major survey of New Zealand's Antarctic seas that ended recently. Huge sea snails, jellyfish with tentacles up to 4 meters long and starfish the size of big food

英语听力：2013-07-14 《恐龙的战争》3 顽强防御—13

the equivalent of a human being with a brain the size of a pea. Lobes for both sight and smell are tiny. Areas controlling information analysis, learning, and complex thought are barely developed. If you look at the size of their brain, you actually

英语听力：2013-07-17 《恐龙的战争》3 顽强防御—14

and interpreting sounds. Its called the auditory cortex. What was a surprise is the higher centers of their brain are very large and suggest that something very different is going on in Parasaurolophus and its kin than in most other of these plant-ea

英语听力：2013-07-19 《恐龙的战争》3 顽强防御—15

This tactic is still used today on the plains of Africa. If you look at various species of plant eaters, they live together in groups, and if one of them spots a predator, they can whinny or hoot and let the rest of the herd know, so that they can ke

英语听力：2013-06-23 《恐龙的战争》3 顽强防御—4

Sometimes they even take on members of their own specie in a battle for dominance. Its primary weapon is a pair of a-meter-long horns mounted on its skull. These horns make those of modern creatures look lightweight. A rhinos horn is made of hair, an

英语听力：2013-07-03 《恐龙的战争》3 顽强防御—8

Interwoven layers can absorb the power of a piercing attack. Ankylosaurus pretty much was not afraid of anything because it would be very difficult to kill this beast. This creatures armor protects something else as well, its eyes. The eyelids of an

英语听力：2013-07-07 《恐龙的战争》3 顽强防御—10

19 meters tall and almost 30 meters long. Its neck alone is 4 stories long, a single vertebra almost as tall as a grown man. And a single thighbone weighs over half a ton. They seem to break all of the rules. Theres nothing like them around today. Co

科学美国人60秒 SSS 水下的统治者到底是谁

Sharks Rule the Reef's Underwater Food Chain Predators like wolves affect their ecosystems by eating their prey. But a more subtle impact involves fear. Predators also terrify prey species. And when, for example, elk are hiding, they don't spend as m

美语听力 English Cafe 131

Topics: The FBI; Readers Digest; consent versus assent, concord versus accord, the long and the short of it Words: federal domestic intelligence serial killer child predator Internet hacker conspiracy secretive digest to condense excerpt humor consen