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UNIT 5 Text A PRE-READING TASK Exercise 1 Before reading the passage, think over the question. Should a scientist be responsible for the results of his or her work? Why or why not? Now read the passag

VOA常速英语2017--HIV或越“变”越弱

HIV, the virus that causes AIDS, frequently mutates. That has allowed the virus to bypass the immune system and infect about 80 million people over the last 35 years. However, researchers say the rapid evolution of HIV actually may be reducing its ab

美联社新闻一分钟 AP 2014-01-07

1. Arctic air could drive temperatures down to record lows in parts of the Midwest when it arrives tomorrow. Schools will close cross Minnesota Monday, the first state-wide closing in 17 years. 2. Union workers at Boeing will give up benefits to keep

SSS 2009-03-20

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Some people are worried that the more we learn about genetics, the closer well get to a day when we can choose all sorts of characteristics for our bab

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Lesson 128 Part Ⅰ Warming-up Exercises Instruction-following: How to Make a Proper English Tea Tea: 1. boil __________________ 2. __________________ (boiling water) 3. __________________ (1 teaspoon

万物简史 第476期:生命在前进(18)

I have never encountered such s in a book by a professional, Fortey wrote later. 一位专业人员在书里竟然如此怒气冲冲，我可从来没有碰到过，福泰后来写道， The casual reader of The Crucible of Creation, unaware of the h

万物简史 第475期:生命在前进(17)

Writing in the journal Evolution, Dawkins attacked Gould's assertions that evolution in the Cambrian was a different kind of process from today 道金斯在《进化》杂志上的文章里，攻击古尔德关于寒武纪的进化不同于今天的进

美联社新闻一分钟 AP 2012-10-08

1. The White House says President Obama and Israeli Prime Minister Benjamin Netanyahu remain in full agreement about keeping Iran from getting a nuclear weapon. The two talked on the phone Friday. 2. Defense Secretary Leon Panetta says intelligence s

美联社新闻一分钟 AP 2012-10-05

1. President Obama and Mitt Romney will be campaigning in the same state again Thursday. It's Virginia this time, after both spent time in Ohio, another pivotal state. 2. Israeli Prime Minister Benjamin Netanyahu will make his case against Iran befor

美联社新闻一分钟 AP 2015-3-21

Secretary of State John Kerrycontinues talks with Iranian officials Tuesday. Monday, at talk, the USofficials said Iranian negotiators questioned Kerry about the letter written byRepublican senators that warns a nuclear deal could collapse when presi

美联社新闻一分钟 AP 2014-07-10

1. Israel confirming the arrest of several suspects in the murder of a Palestinian teenager. The 16-year-old was burned to death last week. Police believe it was in retaliation for the kidnapping of 3 Israeli teens. Prime Minister Benjamin Netanyahu

美国国家公共电台 NPR Newly Discovered Andy Warhol Art Up For Auction

SCOTT SIMON, HOST: There's some newly discovered artworks up for auction this weekend in Massachusetts. They're by Andy Warhol, who died more than three decades ago. We don't know how much the works are worth until they sell, but we do know their val

美国国家公共电台 NPR U.S. Health Care Wrestles With The 'Pre-Existing Condition'

LINDA WERTHEIMER, HOST: Tuesday is Tax Day, and we're going to zero in on those tax questions dealing with health insurance. Health care reporter Julie Rovner will help us out with that in a few minutes. First, this reminder of why health care factor

万物简史 第474期:生命在前进(16)

From the first there were a number of scientists who doubted the account that Steve Gould had presented, 从一开始，许多科学家就对斯蒂芬杰伊古尔德的陈说表示怀疑， however much they admired the manner of its delivery, Fortey

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Robertson to clash against Hendry in Snooker China Open

BEIJING, March 26 (Xinhua) -- Seven-time world champion Stephen Hendry edged Martin Gould 5-4 to set up a second-round clash with the Melbourne Machine Neil Robertson in the 2012 World Snooker China Open here on Monday. In the last frame, there were

AP 2010-07-11

1. The federal government is suing to block Arizona's new immigration law. The Justice Department has filed a lawsuit arguing that Arizona's law targeting illegal immigrants is unconstitutional. 2. Israeli Prime Minister Benjamin Netanyahu says Israe

万物简史 第469期:生命在前进(11)

What was most surprising, however, was that there were so many body designs that had failed to make the cut, so to speak, and left no descendants. 然而，最令人吃惊的是，如此之多的体形，打个比方说，却缺少深度、没有留下

万物简史 第467期:生命在前进(9)

The Burgess Shale included a range of disparity in anatomical designs never again equaled, 布尔吉斯页岩化石所包含的横剖面的花色范围是独一无一的， and not matched today by all the creatures in the world's oceans, Gould wrote

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SCOTT SIMON, HOST: It's been just about 50 years since Otis Redding died. (SOUNDBITE OF SONG, SHAKE) OTIS REDDING: (Singing) Shake - let me hear the whole crowd. Shake - everybody sing it. Shake - a little bit louder, shake... SIMON: Otis Redding ign