Wednesday 阅读理解 C
Week 12
灾害防护
洪水的种类与危害
①Water is one of the most useful things on Earth. It gives us life. We think of water as something soft and gentle, but sometimes water is so powerful that it can even be destructive. Here we talk about floods.
②There are two main kinds of floods: flash floods and slow floods. Flash floods are sudden floods of great volumes of water. They overflow the banks of the rivers and wash away everything they touch into pieces. Flash floods are destructive. The other type is slow floods. They rise over a long period of time. Usually, as more and more rain falls, the water in rivers rises and land is flooded. These slow floods happen in every country in the world.
③Floods are the world's biggest natural killer. When floods happen, crops are damaged, houses are washed away, roads are destroyed, and people are killed. Every year in America, water kills over 100 people, most of whom are in flash floods. Floods also cause huge economic losses.
④Floods are a serious problem. Worse still, they may become more powerful and happen more often as global warming becomes more and more serious. Around the world, sea levels will rise, and more lives will be taken by the flood waters of our planet.
⑤Floods are a serious natural disaster, and we must try to prevent them from happening often to protect our lives and homes.
阅读短文,选择最佳选项。
()1. What can we know about flash floods?
A. They happen unexpectedly.
B. They are slow, but powerful.
C. They are less destructive than slow floods.
D. They appear everywhere around the world.
()2. How does the writer explain “Floods are the world's biggest natural killer.”?
A. By giving facts.
B. By telling stories.
C. By raising questions.
D. By showing steps.
()3. 新考法 熟词生义 What does the underlined word “taken” mean in Paragraph ④?
A. Born.
B. Protected.
C. Killed.
D. Controlled.
()4. Which of the following shows the structure(结构) of the passage?

视频精讲 口语朗读
语篇类型: 说明文
难度星级: ★★★★★
建议用时: /10 min
参考答案: P34

1. A 细节理解题。根据“There are two main kinds of floods: flash floods and slow floods. Flash floods are sudden floods of great volumes of water.”可知，突发洪水是由大量水突然涌出形成的，sudden意味着unexpected，表示“出乎意料的”。故选A。
2. A 写作手法题。根据“When floods happen ... Every year in America, water kills over 100 people, most of whom are in flash floods. Floods also cause huge economic losses.”可知，作者通过列举洪水发生时毁坏庄稼、冲毁房屋、破坏道路、造成人员死亡(例如美国的洪水每年导致100多人死亡)和造成巨大经济损失等事实，来解释洪水是世界上最大的自然杀手这一观点。故选A。
3. C 词义猜测题。根据第④段内容可知，随着全球变暖，洪水更严重、更频繁，海平面上升，更多生命会被洪水夺走。故选C。
4. D 篇章结构题。文章第①段引出洪水的话题；第②段介绍洪水的两种主要类型；第③段阐述洪水的危害；第④段说明洪水问题愈发严重；第⑤段呼吁人们防范洪水频发。整体是“总—分—总”的结构，先总述洪水，再分别阐述洪水的类型和危害，最后总结强调洪水是严重灾害，需要防范。故选D。