新东方优美背诵短文50篇 Unit50:CellsandTemperature

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C;a departure of a few

新东方背诵文选 L50. Cells and Temperature

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

Beijing Nine Gate Jazz Festival to Kick off September 9!

Beijing's Nine Gates International Jazz Festival is back this fall for the city's most discerning jazz lovers. Now in its sixth year, this year's concerts will take place at the Chaoyang Park Center Island Theater, National Library Concert Hall, Beij

NPR 2009-02-28

President Barack Obama made it official today in a speech to Marines at Camp Lejeune in North Carolina. He said US combat troops will be out of Iraq by August of next year. NPR's Don Gonyea reports from Camp Lejeune. The president's announcement mea

科学美国人60秒 SSS Bats Learn To Take White-Nose Punch

The little brown bat was once abundant in the eastern U.S. But within the last 15 years, a fungus called Pseudogynmoascus destructans infiltrated a cave in upstate New York. This fungus causes whats called white-nose syndrome in bats. The illness has

美国有线新闻 CNN 2014-02-02

First up today, security in Sochi, the 2014 winter Olympics begins there on February 7, Russian president Putin says his country will do everything possible to keep the game safe and protect visitors to Sochi. 40K Russian police and security forces w

考研背诵50篇——50. Cells and Temperature

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C; a departure of a few

英语听力文摘 English Digest 566、小虫防冻秘招！

Bug Antifreeze Ever seen a cricket wearing a parka? Probably not, but you might have wondered how insects make it through the winter! After all, theyre cold-blooded, so their body temperature is pretty close to the temperature around them! Why dont b

VOA慢速英语2018--老挝为保护濒危亚洲黑熊的斗争

Laos Fights to Protect Endangered Asiatic Black Bears The capture and trafficking of endangered Asiatic black bears continues to be a problem in Laos, although the government is trying to reduce it. The bears often are sold so their parts can be used

2006年VOA标准英语-Iran Reformists Say They Are Down, But Not Out

By Gary Thomas Tehran 13 July 2006 Iranian President Mahmoud Ahmadinejad The election of a hard-line conservative to the Iranian presidency last year was a shock for reformists, who had been hoping for a more liberal successor to former President Mo

美联社新闻一分钟 AP 2015-6-16

New York governor Andrew Cuomo says two escaped prisoners from upstate could be in Mexico by now. Nearly a thousand officers have been searching the xx wood for David Sweat and Richard Matt. So far a prison employee has been charged with helping the

美联社新闻一分钟 AP 阿拉斯加棕熊为冬眠做准备

This is AP News Minute. A fast and furious hurricane Michael sped toward the Florida panhandle on Tuesday with 110-miles-per-hour winds and a potential storm surge of 12 feet, giving tens of thousands of people precious little time to get out or boar

美联社新闻一分钟 AP YouTube总部发生枪击事件

This is AP News Minute. Police say a woman opened fire at YouTube headquarters, and wounded four people in a shooting that promoted panic as workers hid and tried to flee. Officials say the unidentified woman died of a self-inflicted gunshot. Preside

VOA标准英语2010年-Women, Children, Men: All Victims of H

The International Organization for Migration says there's an urgent need for tougher action against human trafficking in East Africa. The IOM has released a new assessment of the problem, saying men, women and children of all ages are being exploited

美国科学60秒 SSS 2013-08-02

This is Scientific American 60-second Science. I'm Sophie Bushwick. Got a minute? Wolves and grizzlies sound like unlikely allies. But the resurgence of Yellowstone Park's canine population has helped the bears in a berry interesting way. In the 1990

英语博客(A cup of English):030 Hibernation for a few minu

Beginners. In this part of the world, we need to heat our house for three quarters of the year: Winter, Spring, and Fall. Of course, now is the time of year when the freezing temperatures outside make us turn up the heat inside. It is so nice to get

英语博客：ESL Podcast 723 – Things Associated with Autumn

Erin: Smell that! Sean: Smell what? Erin: Cant you smell the changing of the seasons? I love autumn. The fall colors are out and theres a chill is in the air. Sean: That means Ill be raking leaves every weekend when I should be watching football. Eri

美国国家公共电台 NPR Before Cars Come In, Bikes Accompany Bison In Yellowstone

LOURDES GARCIA-NAVARRO, HOST: If you want to go for a spectacular bike ride this weekend, you might consider heading to Yellowstone National Park. Every spring, 50 miles of the main thoroughfares are open to bicycles only. And Montana Public Radio's

双语有声阅读：细胞与温度

Cells and Temperature Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37 ℃

异类之不一样的成功启示录 第161期:法国乡下农民的生活

That's, at most, 1,000 hours a year of work. 那么他们每年花在工作上的时间最多不会超1000个小时。 When a Kung bushman was asked once why his people hadn't taken to agriculture, he looked puzzled and said, 当土著人被问及为什