Natural calamities covered by insurance are events that are exceptional to some extent, not the ordinary action of the wind and waves.
举一反三
- Which of the following risks is not covered in All Risks coverage? ( ) A: natural calamities B: strike C: fire D: collision
- Scientists are concerned about why natural phenomena of which some often impress heavy calamities on man occur.
- Waves are beautiful to look at, but they can destroy ships at sea, as well as houses and buildings near the shore. What causes waves? Most waves are caused by winds blowing over the surface of the water. The sun heats the earth, causing the air to rise and the winds to blow. The winds blow across the sea, pushing little waves into bigger and bigger ones. The size of a wave depends on how strong the wind is, how long it blows, and how large the body of water is. In a small bay(海湾) big waves will never build up. But at sea the wind can build up huge and powerful waves. A rule says that the height of a wave (in meters) will usually be no more than one-tenth of the wind’s speed (in kilometers). In other words, when the wind is blowing 120 kilometers per hour, most waves will be about twelve meters. Of course, some waves may combine to form huge waves that are much higher. In 1933 the United States Navy( 海军) reported the largest measured wave in history. I t rose in the Pacific Ocean to a height of thirty-four meters.
- According to the author, ______. A: it is wrong for people to distrust the government B: the government plays a key role in taking some action to save our planet C: it is beyond our capability to substitute some of the current natural resources D: some action is being taken by the government to save the natural resources
- When these electromagnetic waves escape from the conductor into space, they are said to be radiated by the conductor, hence the name radio waves.