题目内容：

    Research published in the journal High Temperature found that an hour-long soak in hot water produced similar blood sugar responses to 60 minutes of moderate physical activity.

Sound too good to be true? While the research on these effects is still initial (初步)，there is a plausible explanation for this.

"It seems that activities that increase heat shock proteins (热体克蛋) may help to improve blood sugar control and offer an alternative to exercise," the lead study author Steve Faulkner wrote. “These activities—such as soaking in a hot tub or taking a sauna (桑拿) — may have health benefits to people who are unable to exercise regularly. to an hour- long session of cycling or an hour-long session in a 40℃bath.

The scientists discovered that both groups were better able to control their blood sugar levels in the 24 hours following their soak were approximately 10 percent lower than those of the participants who exercised.

Researchers say this implies that “passive heating" (a means of rising your body temperature) could assist in lowering blood sugar levels. Passive heating can affect proteins in the body called heat shock proteins, which helps regulate blood sugar. People with diabetes (糖尿病) tend to have lower levels of heat shock proteins. Passive heating can raise these levels.

It's critical to point out a few limitations of the study. For starters, the experiment only monitored men, so it's difficult to say if the same effect would happen in women. It also only included 14 volunteers, which was an extremely small sample size. More research needs to be conducted before scientists can come to any official conclusion. And, of course, you should still continue exercising regularly.

That being said, the study does offer some more promising insights (见解) into the healing effects of hot water.

1.What does the underlined word “plausible” in Paragraph 2 refer to?

A.Strange. B.Ridiculous.

C.Reasonable. D.Confusing.

2.What can we know about the research by the U. K.'s team?

A.Cycling made no difference to blood sugar levels.

B.People with diabetes usually have higher levels of heat shock proteins.

C.14 lean and 14 overweight men were involved in the research.

D.A 24-hour tracking and monitoring was carried out after the one-hour activities.

3.How should scientists improve this study?

A.By extending the study period.

B.By changing the research method.

C.By including women in the research.

D.By adding more scientists involved in the investigation.

4.Which of the following best expresses the author's main point of view?

A.When you run a fever you get passive heating.

B.Passive heating can raise levels of heat shock proteins.

C.The research is of significance in spite of some imperfection.

D.You need either a hot bath or regular exercise to keep healthy.