The three sports are good for our heart.

1. Racket Sports

They include (包括) ping-pong and badminton. They make our heart strong. Do them 2-3 times a week.

2. Swimming

Swimming is good for us. It keeps our heart healthy. Swim 2-3 times a week.

3. Aerobic (有氧的) Sports

They include running and walking. They make our heart strong. Do them 5 times a week.

1.1.What are the three sports good for?

A Our eyes.

B Our heart.

C Our hands.

D Our legs.

解析：选B。B细节理解题。根据文中第一句“The three sports are good for our heart.”，这三种运动对我们的心脏有益。故选B。

2.2.What do racket sports include?

A Ping-pong & badminton.

B Running & walking.

C Swimming & running.

D Badminton & walking.

解析：选A。A细节理解题。根据球拍运动（Racket Sports）段落中的“They include ping-pong and badminton.”可知，球拍运动包括乒乓球和羽毛球。故选A。

3.3. How often do we swim for our heart?

A 1 time a week.

B 2-3 times a week.

C 4 times a week.

D 5 times a week.

解析：选B。B细节理解题。根据游泳（Swimming）段落最后一句“Swim 2-3 times a week.”，我们每周游泳2-3次对心脏好。故选B。

4.4.How often do we do aerobic sports?

A 2-3 times a week.

B 4 times a week.

C 5 times a week.

D 6 times a week.

解析：选C。C细节理解题。根据有氧运动（Aerobic Sports）段落最后一句“Do them 5 times a week.”，我们每周要做5次有氧运动。故选C。