1. (2019·江苏) 听材料，回答小题。

We all know that exercise is good for us, but sometimes it seems too hard to leave the<br />sofa.<br />I can see that.<br />You seldom do exercise.<br />Plus, having the doctor tell us to get two and a half hours of exercise a week doesn't<br />really help our motivation much.<br />Don't be discouraged.<br />Now, a new study suggests getting benefits from exercise doesn't have to be that demanding.<br />Jacob Sattlemare from Harvard University has done a study into how much exercise is needed<br />to lower the risk of heart attacks.<br />Hmm, interesting.<br />The study showed that people who put in 300 minutes a week of exercise had a 20% lower<br />risk of death due to heart disease.<br />Still, the people who exercised 150 minutes a week did pretty well too, lowering their<br />death risk by 14%.<br />And what about the people who exercise half as much as that?<br />Like what I'd probably do.<br />Does that help?<br />Of course.<br />Even 15 minutes would help.<br />We all know that exercise is good for us, but sometimes it seems too hard to leave the<br />sofa.<br />I can see that.<br />You seldom do exercise.<br />Plus, having the doctor tell us to get two and a half hours of exercise a week doesn't<br />really help our motivation much.<br />Don't be discouraged.<br />Now, a new study suggests getting benefits from exercise doesn't have to be that demanding.<br />Jacob Sattlemare from Harvard University has done a study into how much exercise is needed<br />to lower the risk of heart attacks.<br />Hmm, interesting.<br />The study showed that people who put in 300 minutes a week of exercise had a 20% lower<br />risk of death due to heart disease.<br />Still, the people who exercised 150 minutes a week did pretty well too, lowering their<br />death risk by 14%.<br />And what about the people who exercise half as much as that?<br />Like what I'd probably do.<br />Does that help?<br />Of course.<br />Even 15 minutes would help.

1. （1） Why does the man seldom do exercise?

   A . He lacks motivation. B . He has a heart problem. C . He works all the time.
3. （2） What does Jacob Sattelmair probably do?

   A . He's an athlete. B . He's a researcher. C . He's a journalist.
5. （3） Why does the woman speak of a study?

   A . To encourage the man. B . To recommend an exercise. C . To support her findings.
7. （4） How much time will the man probably spend exercising weekly?

   A . 300 minutes. B . 150 minute. C . 75 minutes.