[单项选择]

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So you think you have some of the good things in life. You’ve got a video tape recorder and a device that answers the phone for you. And there’s a gadget that turns on the lights when you’re out. Then there are all those goodies in the kitchen. How about the electric knife, the coffee maker, the ice maker
Feel good about having all that stuff or do you wonder whether the gadgets are running you instead of you running them
Americans apparently feel more hurried than ever these days. Part of the reason is trying to keep up with the demands on their time to purchase, store, service, repair, replace, and protect all those "time-saving" machines. Add to them the problems of the extra car and the bigger house. And there’s the RV parked on the side lawn. A fellow may, poor soul, feel just at wits end. "Americans are eating up their leisure time by overloading themselves with all kinds of gadgets. "So says
A. Seeing films.
B. Repairing cars.
C. Washing clothes.
D. Buying video games.

[单项选择]
So you think you have some of the good things in life. You’ve got a video tape recorder and a device that answers the phone for you. And there’s a gadget that turns on the lights when you’re out. Then there are all those goodies in the kitchen. How about the electric knife, the coffee maker, the ice maker
Feel good about having all that stuff or do you wonder whether the gadgets are running you instead of you running them
Americans apparently feel more hurried than ever these days. Part of the reason is trying to keep up with the demands on their time to purchase, store, service, repair, replace, and protect all those "time-saving" machines. Add to them the problems of the extra car and the bigger house. And there’s the RV parked on the side lawn. A fellow may, poor soul, feel just at wits end. "Americans are eating up their leisure time by overloading themselves with all kinds of gadgets. "So says
A. Americans could not function well without their modern labour-saving machines.
B. Doing repairs on modern appliances takes too long.
C. Despite all their modern conveniences, Americans feel less relaxed than ever.
D. Technology has brought many useful gadgets to contemporary living.

[填空题]Perhaps like most Americans you have some extra pounds to (47) . You may even have tried a fad diet or two, but found yourself right back where you started. The key to weight loss is regular (48) activity. And surprisingly, you don’t have to give up eating or make the gym your second home to see long-term, (49) effects.
Your body needs a certain amount of energy to maintain basic (50) such as breathing, blood circulation and digestion. The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate.
Any time you are active, (51) energy is required. It is obtained from glycogen and fat stored in the blood, liver, and muscles. The key to losing weight is to draw on the fat rather than on the carbohydrate reserves.
Which of the two energy sources you use depends on the intensity and (52) of your activity. The higher the intensity, the more your body will pull from the sto