Never swim alone. Many drownings involve single swimmers. When you swim with someone else, if one of you has a problem, the other may be able to get help, including signaling for assistance from others.

　　Don't fight the current. The facts show that some 80% of rescues by lifeguards at ocean beaches are caused by currents. These currents are formed by surf and gravity, because once surf pushes water up the slope of a beach, gravity pulls it back. This can create concentrated rivers of water moving offshore. If you are caught in a rip current, don't fight it by trying to swim directly to shore. Instead, swim parallel to shore until you feel the current relax, then swim to shore. Most rip currents are narrow and a short swim parallel to shore will help bring you to safety.

　　56. When coming to Viginia Beach, children cannot enjoy the happiness of________________.

　　A. walking on the road made of wood

　　B. joining the nightspots

　　C. riding a horse or a pumper car

　　D. skiing in the sea

　　57. Many people believe the best time to visit Virginia Beach may be ____.

　　A. after autumn school term beginning

　　B. in the summer vacation

　　C. during the Christmas holiday

　　D. in the cold winter

　　58. Swimming in the sea you’d better not swim _______________.

　　A. with a friend

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