When are windows the weak link in a building?
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1 .The solar energy system contains_____.
A collectors B shallow fiberglass tray C copper tubes D A, B and C
2 .The clock located inside our brains is similar to our bedside alarm clock because_____.
A it controls when we wake, when we eat and when we sleep. B it has a cycle of 24 hours. C it is a cycle also called circadian rhythm. D it can alarm any time during 24 hours.
3 .In the third paragraph the author wants to tell the reader that_____.
A it is natural for teenagers to stay up late and get up late. B staying up late has a bad effect on teenagers' ability to think and learn. C during puberty most teenagers experience a kind of gray cloud. D it is hard for teenagers to get out of bed in the morning.
4 .Which of the following statements is NOT true according to the fourth and fifth paragraphs?
A Our biological clock resets itself automatically. B light gets through our eyes and resets our biological clock. C Our internal clock as well as the alarm clock can be reset automatically. D Our internal clock, like the alarm clock, can be reset.
5 .Which of the followings does not indicate the importance of windows as described in the first two paragraphs?
A Windows can change from clear to dark to save energy. B Windows help to save energy by letting light in. C Windows help to save energy by providing heat. D Windows enable people to have contact with the outside world.
7 .What are the smart windows, according to P4?
A Windows that are coated. B Windows that are glazed. C Windows the color of which can be changed. D Windows that have many layers.
8 .To make electrochromic windows change color, what is applied to the window glass?
A Electricity B Tungsten oxide C A battery D A voltage
9 .What will be the benefit if the research on smart windows turns out to be successful, according to the last paragraph?
A The buildings will look different. B Windows can be as large as you want. C We may not need air conditioners any more. D They are less expensive than traditional windows.
10 .(46)_______
A Then people living in the path of a hurricane can protect themselves and their belongings. B Hurricane season in the Atlantic begins June 1st and ends November 30th. C One hurricane, named Belle, made forecasters feel trouble. D Dr. Robert Sheets, the chief forecaster at the National Hurricane Cen...
