[简答题]Place What harm can noise do to people’s health

[简答题]Place What harm can noise do to people’s health

[简答题]Place Do you think noise can be considered to be a form of pollution

[简答题]Place What noises can we hear in a city

[单项选择] Memory Class Stan Field knows what age can do to a person’’s memory, and he’’s not taking any chances with his. He chooses his food carefully and gets plenty of exercise. He also avoids stress, coca cola and cigarette smoke. What’’s more, at breakfast each morning, the 69-year-old chemical engineer swallows a plateful of pills in the hope of boosting his brain power. Michelle Amove is less than half Field’’s age, but no less concerned about her memory. While working round the clock to finish a degree in film studies, the 33-year-old New Yorker had the alarming sensation that she had stopped retaining anything. "I couldn’’t even remember names," she says. "I thought, Oh, no, I’’m over 30. It’’s all downhill from here. " Besides loading up on supplements, Amove signed up for a memory enhancing course at New York’’s Mount Siani Medical Center. And when she got there, she found herself surrounded by people who were just as worried as she was.
A. Food only.
B. Nothing.
C. Food and pills.
D. A plateful of pills only.

[单项选择]We love what we can do with our computers, yet when it comes to reading, given the choice, most people prefer printing their material. But a new device to be launched early next year by Plastic Logic will be utterly different from any electronic reader we are familiar with.
The technology was originally developed at Cambridge University’s Cavendish Laboratory in the 1990s, where they discovered how to put transistors(电晶体) on plastic. The use of plastic in these devices is the big idea, as Dr. Seamus Burns explains, "we are making the display on plastic rather than glass. Our core technology is the ability to put electronics on a plastic substrate(基质)rather than a glass substrate. This means that we can make a display device that is thin, lightweight and robust, without it being prohibitively expensive. "
The device is initially aimed at business people who carry around briefcases full of papers. It supports the standard software used to read and create documents, but also
A. the Cambridge University basement
B. the usage of plastic materials
C. the usage of hard glass
D. its low price and lightweight