题目内容：

完形填空。

Swimming is enjoyed by people of all ages, from the young to the old. All over the ______ people swim for fun. There are many ______ where people can enjoy swimming. People swim in lakes, oceans, and ______. Some swim in pools. Many schools, apartment buildings and clubs ______ indoor or outdoor pools. Some families have pools in their ______.

Swimming is one of ______ forms of exercise. It can improve heart action. It helps blood circulate (血液循环). Swimming can ______ develop strong muscles(肌肉). It will even strengthen the lungs(肺). People who are ______ and can't enjoy other sports can keep their bodies in better condition by ______.

It is a good idea for ______ to learn to swim at an early age. This will be an activity that the children can enjoy for the rest of ______ lives. There are some basic rules for water safety that you must ______. First of all, know how to swim. Many ______ give lessons to children. Adults can learn to swim at public pools or recreation(娱乐) centers. Another rule to remember is never swim ______. Always swim with a friend and know that person is in the water at all times. It is best to swim only in places ______ there is a lifeguard. If you swim in the ocean or a river, it is good to know about tides(潮水) and currents(水流).

1.A．village        B．earth          C．world          D．street

2.A．gardens        B．fields         C．floors         D．places

3.A．rivers         B．hotels         C．restaurants    D．hospitals

4.A．like           B．have           C．want           D．help

5.A．rooms          B．playgrounds    C．yards          D．kitchens

6.A．the worst      B．the tallest    C．the best       D．the easiest

7.A．too            B．also           C．either         D．never

8.A．clever         B．stupid         C．healthy        D．disabled

9.A．playing        B．swimming       C．running        D．exercising

10.A．boys          B．girls          C．children       D．adults

11.A．her           B．his            C．our            D．their

12.A．know          B．swim           C．play           D．leave

13.A．hospitals     B．libraries      C．schools        D．shops

14.A．together      B．alone          C．happily        D．sadly

15.A．which         B．that           C．where          D．how