单词:normal habitat of bacteria
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By Jill Moss Broadcast: July 21, 2003 This is Bill White with the VOA Special English Development Report. The United Nations estimates that more than one-thousand-million people live in poor housing c
Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u
Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo
When We Fly to Mars, Microbes Will, Too 飞向火星的不止是你,还有我 A humid bathroom is the perfect habitat for mold. But there are ways to avoid it. We can just open the window and let some fresh air in! Not so easy on a space station th
Common Infection Raises Female to Male HIV Risk A common bacterial infection among women in sub-Saharan Africa sharply increases the risk of HIV transmission to men. Researchers say current treatments provide only a short-term solution. Its long been
[00:02.90]The world around us [00:06.45]LISTENING [00:09.20]1 Listen to the tape and fill in the correct information in the spaces below. [00:17.37]1.Walk along the street of any major city, [00:23.54]and you will see that the air you breathe is not
Idiom: Made in the shade ( very comfortable ) Hit the book: Predator Conserve Habitat Proximity
The first Monday in October each year is World Habitat Day. It was started by the United Nations. The UN said the idea is for us to reaffirm that adequate shelter is a basic human right. It also said we must focus on the conditions of cities and town
Matthew: Hi, everybody. My name's Matthew White and I'm here interviewing Mary Birch-Harmon, who we lovingly call MB. MB, we know you go on lots of trips for Habitat For Humanity. Could you please explain exactly what is Habitat? MB: Sure. Habitat Fo
By Mike O'Sullivan Los Angeles 03 April 2007 Since 1984, former U.S. President Jimmy Carter and his wife, Rosalynn, have helped build homes for the poor through a charitable group called Habitat for Humanity. As we hear from Mike O'Sullivan, the Cart
Are you a normal person? 你是正常人吗? During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe
Pre-Listening Vocabulary habitat: the place where living things live extinction: the state of no longer existing threatened: facing a possible risk of extinction 24/7: all day and night; at all times human intervention: the involvement of humans Habi