[单项选择]

(46) Yet, after wrapping a flexible cuff around your arm and pumping it up, your doctor frowns and gives you the bad news:you are one of the roughly 60 million Americans who have high blood pressure. Because it can lurk in the body without your knowing it, high blood pressure has been called the silent killler. (47) (48) Depending on how high your pressure is, how you live and what changes you’re willing to make in your lifestyle, treatment can be tailored specifically to you. (49) The first, or top, number is the systolic reading, the pressure of blood against artery walls when the heart beats—the period of highest tension. The second, or bottom, number is the diastolic—the minimum pressure, between beats, when the heart is filling with blood and artery walls are relaxed. If the diastolic goes over 105 and stays there through several readings, that’s the beginning of the danger zone, moderate hypertensi

[填空题]After running around the Olympic stadium track once, ______ lights the cauldron, and the Olympic Games officially start.

[单项选择]After supper we usually take a stroll around the park for about an hour.
A. walk
B. rest
C. bath
D. breath

[单项选择]Air is all around us. It is around us when we walk and play. From the moment we are born, air surrounds us. When we sit down, it is around us. When we go to bed, air is also around us. No matter where we are on earth, air surrounds us. We live in air.
All living things need air. Living things cannot live without air. We can go without food or water for a few days, but we cannot live for more than a few minutes without air. When we are working or running, we need more air. So we breathe faster than usual. When we are asleep, we need less air.

People can live without food or water for______.
A. a few months
B. a few weeks
C. a few days

[单项选择]—Have you had ______ breakfast yet
—No, not yet.
A. /
B. a
C. the

[判断题]There are quite a few after-school programs after 4:30 pm.

[单项选择]Where are results not yet available
A. Europe
B. Korea
C. Taiwan
D. North America

[单项选择]Passage Two Yet these global trends hide starkly different national and regional stories. Vittorio Colao, the boss of Vodafone, which operates or partially owns networks in 31 countries, argues that the farther south you go, the more people use their phones, even past the equator: where life is less organized, people need a tool, for example to rejig appointments. "Culture influences the lifestyle, and the lifestyle influences the way we communicate," he says. "lf you don’t leave your phone on in a meeting in Italy, you are likely to miss the next one." Other mundane factors also affect how phones are used. For instance, in countries where many people have holiday homes they are more likely to give out a mobile number, which then becomes the default where they can be reached, thus undermining the use of fixed-line phones. Technologies are always "both constructive and constructed by historical, social, and cultural contexts," writes Mizuko Ito, an anthropologist at
A. He is afraid of missing a business opportunity.
B. His family members may call him in emergency.
C. He thinks it is rude to leave a call unanswered.
D. He needs to get posted about the latest change in the work schedule.

[单项选择]

Telecommunications allows people around the World to contact one another, to access information instantly, and to communicate from remote areas. Telecommunications usually involves a sender of information and one or more recipients(收件人) linked by a technology, such as a telephone system, that transmits information from one place to another. Telecommunications devices convert different types of information, such as sound and video, into electronic signals. The signals can then be transmitted by means of media such as telephone wires or radio waves. When a signal reaches its destination, the device on the receiving end converts the electronic signal back into an understandable message, such as sound over a telephone, moving images on a television, or words and pictures on a computer screen. Telecommunications enables people to send and receive personal messages across town, between countries, and to and from outer space. It also provides the key medium for news, data, information&r
A. the deliver
B. the sender
C. the receiver
D. the sender and the receiver