题目内容：

    The summer is so hot and sticky, why would we want to sweat even more by exercising? Or is it just I who think like that? Sweat and clothes sticking to our bodies as we move make exercise seem rather uncomfortable. What can be done to fix it?

Researchers at MIT have come up with a solution. They’ve developed a workout suit with flaps that open as the wearer begins sweating. As the person cools off, the flaps shrink until they assume their original position.

Sounds cool, sounds practical. These flaps are lined with live, microbial ( 微生物的)cells. These cells can detect when the body is heating up too much, and in response, expand. It’s just as if they were working within any other organism, recognizing patterns of heating and cooling, then responding appropriately to maintain body temperature. It seems kind of strange to have living cells (that aren’t your own) on you, right? Not to fear, these cells have been believed safe. Plus, there’s a  material in the suit that helps the flaps/cells hover ever so slightly above the exerciser's skin. The flaps start opening as soon as people start feeling warm and sweaty, and the bit of space between the suit and the skin helps develop that feeling of cool and refreshing air as they move. For more information about flaps, click here.

According to Gadgetify.com, researchers have also been working to apply this technology to running shoes as well. Moisture-responsive workout clothing has the potential to revolutionize sport fashion industry. People can stay drier, cooler and fresher at the end of the workout, which sounds better than leaving the gym with a trail of sweat and a red face. It’s possible that the comfort of these suits can make people enjoy exercising more and exercise with more intensity.

1.What’s the purpose of the first paragraph?

A.To introduce the topic. B.To show his dislike of summer.

C.To give an example. D.To tell of his dream.

2.What can’t be learned from the passage?

A.When a person doesn’t sweat, the flaps will come to its original position.

B.The flaps themselves can float slightly around the exerciser’s skin.

C.When a person sweats, the flaps will expand.

D.The flaps are essential to cooling exercisers down.

3.What’s mainly talked about in the last paragraph?

A.The influence of the technology. B.The efficiency of the technology.

C.Different reviews on the technology. D.Author’s attitude to the technology.

4.Where does the essay come from?

A.Magazine B.Newspaper

C.Brochure D.Website