单词:make a demonstration of
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UNIT 8 Text A Pre-reading Activities First Listening 1. As you listen to the tape the first time, mark each word or phrase J or T, to indicate whether Jill (the woman) or Tim (the man) says them. (Som
Hello, I'm Melissa Long here at the CNN center in Atlanta with a look at some of the stories happening NOW IN THE NEWS on this Thursday June 25th. President Obama says the time to act on health care is now. He made the remarks at a forum on how to t
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you paid attention during high school biology, you probably remember that girls are born with all the eggs theyll ever have, whereas guys are churning
An eight-year-old girl from Australia is well on her way to building a successful business empire after it was revealed that her playful videos, featuring her easy-to-follow confectionery recipes, are bringing in around $127,000 a month in ad revenue
加拿大研究人员开发雷达隐身衣 TORONTO, Nov. 25 (Xinhua) --- Witches and magic may not exist, but Harry Potter's invisibility cloak certainly does. A pair of researchers in the Canadian city of Toronto have developed their very own cloaki
Why Hammocks Make Sleep Easier, Deeper Napping in a hammock is one of the more delightful tasks of summer, and Swiss researchers say they now know why. The gentle rocking motion makes people fall asleep faster, and they sleep deeper. Those changes in