(27-29)         Tabata training is a very popular way of exercising these days. It doesn’t takemuch time or space, and it burns calories faster than other ways of exercising.The idea of Tabata training is simple: exercise for 20 seconds, rest for 10 seconds,and then repeat (at least eight times). The moves for the 20-second exercise are notdifficult to learn. Jumping jacks, high knees, squats, and planks are some of the mostcommon moves. You can decide yourself what moves to do in your Tabata training.For example, you can do more leg exercises if you want strong legs. 

       One great thing about Tabata training is that your body will keep burningcalories for at least an hour after 4 minutes of Tabata training. But to have thiswonderful “afterburn,” you need to exercise really hard during each 20 seconds.If you seldom exercise or have heart problems, this exercise may not be good foryou. But for people who enjoy exercising but are too busy to go to the gym, Tabatatraining might just be the answer.                                                                                                      calorie 卡路里(熱量單位)
【題組】27. Which idea is talked about in the first paragraph of the reading?
(A) How you should do Tabata training.
(B) What is the best time for Tabata training.
(C) Who first had the idea of Tabata training.
(D) How often you should do Tabata training.