第三节 语篇补全 阅读下面的短文,从短文后的选项中选出能填入空白处的最佳选项补全短文。选项中有一项为多余选项。(共4小题,计8分)
Summer is here. One of the best ways to cool off on a hot summer day is to jump into a swimming pool. Swimming is great exercise, and a trip to a pool or beach is a good way to have fun with friends. 56. , so it's important to stay safe as you do it. Here are a few things you can do to swim safely.
●Swim only in areas set for swimming.
Don't swim unless there is a lifeguard(救生员)on duty. If you're on a beach near the ocean, this is especially important. In some places, fast currents(急流)can sweep swimmers away without warning. So if a sign says“no swimming”, please take care.
●Be careful when diving(跳水)into the water headfirst.
Most pools have deep ends where diving is safe. In natural water, don't dive unless you know that the water is deep enough. 57. , causing injury(伤害)or death.
●Make sure you have a partner with you.
Nobody knows what will happen while you are swimming. If something goes wrong, you can get help from that person as soon as possible. In this situation, 58. .
●Pay close attention to children's safety.
Kids who don't know how to swim should wear life jackets. But by themselves they are not enough, 59. . If you have a pool at home, put a fence(围栏)around it in case children fall in. And if a child disappears, check the pool first.
A.skilled kids may forget green hands
B.so an adult should always be present
C.But swimming can also be dangerous
D.a few seconds can make a big difference
E.Or you could hit your head on the bottom
答案解析：
56. 根据前文“Swimming is great exercise, and a trip to a pool or beach is a good way to have fun with friends.”以及后文“so it's important to stay safe as you do it”可知，前文讲游泳的好处，后文转折强调安全的重要性，空处应是表达游泳也有危险性，所以选C。
57. 根据前文“In natural water, don't dive unless you know that the water is deep enough.”以及后文“causing injury or death”可知，此处是说在水不够深的地方跳水的后果，即可能撞到池底或水底，所以选E。
58. 根据前文“If something goes wrong, you can get help from that person as soon as possible.”可知，游泳时遇到意外，同伴的及时帮助很关键，这种情况下每一秒都很重要，所以选D。
59. 根据前文“Kids who don't know how to swim should wear life jackets. But by themselves they are not enough”可知，儿童穿救生衣不足以保证安全，空处应是补充需要成年人在场看护，所以选B。
