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A．Not use any electric appliances any more.B．Take part in a basketball final.C．Ask his

A. Not use any electric appliances any more.
B. Take part in a basketball final.
C. Ask his neighbor to check the power.
D. Watch a ball game on television.

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What is true about the research mentioned in the beginning of the passage？

A. The participants were investigated for 6 years between ages 51 to 61.
B. The participants answered questions at the start of the study.
C. The participants who kept working were in better shape than the others.
D. All kinds of jobs would be good for people as long as they kept working.

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What is true about the study of 1,000 people born in 1920？

A. It shows working is also good for people's physical health.
B. The participants were tracked over a 14-year period and then investigated at 70.
C. Retirees will live another 12 years if they keep on working.
D. It finds the 70-year-olds would increase by 2.5 times to be alive at age 82 if they kept working.

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A．typicallyB．simplyC．fairlyD．perfectly

A. typically
B. simply
C. fairly
D. perfectly

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听力原文： The first step in exercising for most people is determining whether or not they should. This is particularly true with anyone over thirty-five, especially if they have been heavy smokers. (33) Likewise, young adults who have been very inactive should process slowly and with caution. A physical evaluation from a physician is recommended, preferably one that includes an exercise-stress test. While a person is exercising, a stress test detects cardiovascular (心血管的) problems that might not show up when the body is at rest. This is done by monitoring blood pressure, pulse rate, oxygen consumption, and the hearts electrical activity while exercising.
Whatever exercise program is selected, (34) it is important to start with warm-up periods. These should include stretching exercises, jumping jacks, or active walking. The idea is to increase heart rate and circulation slowly without placing a sudden strain on the heart or the muscles that are starting to work. The next phase in developing an exercise program is to determine the amount of exercise that is enough to condition the muscles and cardiovascular system without overly straining the body. This involves taking one's pulse and finding one's target zone.
(35) This target zone, or safe-training pulse rate, is established by subtracting one's age from 220 and then taking 60 percent to 80 percent of that total. If you are just starting to exercise, 60 percent is recommended; 80 percent is recommended if you are already in good condition.
Questions:33. What should the inactive young adults do when they decide to do exercise？
34.What does warm-up exercise exclude？
35.What would be the suggested the safe-training pulse rate if you are a beginner and at the age of 45？
(30)

A. To determine whether-or-not they should.
B. To process slowly and with caution.
C. To have a muscle check.
D. To increase heart rate.

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A．Not use any electric appliances any more.B．Take part in a basketball final.C．Ask his