Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 46 to 55Tsunami is a Japanese word which means harbour wave and is used as the scientific term for seismic sea wave generated by an undersea earthquake or possibly an undersea landslide or volcanic eruption. When the ocean floor is tilted or offset during an earthquake, a set of waves is created similar to the concentric waves generated by an object...
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 46 to 55
Tsunami is a Japanese word which means harbour wave and is used as the scientific term for seismic sea wave generated by an undersea earthquake or possibly an undersea landslide or volcanic eruption. When the ocean floor is tilted or offset during an earthquake, a set of waves is created similar to the concentric waves generated by an object dropped into the water. Most tsunami originate along Ring of Fire, a zone of volcanoes and seismic activities, 32,500 km long that encircles the Pacific Ocean. Since 1819, about 40 tsunamis have struck the Hawaiian Islands.
A tsunami can have wave lengths, or widths, of 100 to 200 km, and may travel hundreds of kilometers across the deep ocean, reaching speech of about 725 to 800 kilometres an hour. Upon entering shallow coastal waters, the wave, which may have been only about half a metre high out at sea, suddenly grow s rapidly. When the wave reaches the shore, it may be 15m high or more. Tsunamis have tremendous energy because of the great volume of wave effected. They are capable of obliterating coastal settlements.
Tsunamis should not be confused with storm surges, which are domes of water that rise underneath hurricanes or cyclone and accompanying storm surge killed an estimated 500,000 people in Bangladesh in 1970. The tsunami which struck south and southeast Asia in late 2004 killed over 200 thousand people.
That is the greatest speed of tsunamis traveling across the deep ocean ?
A. 200 kilometres an hour
B. 700 kilometres an hour
C. 800 kilometres an hour
D. 150,000 kilometres an hour
IV. Use the correct form of the word given in each sentence.
1. Suddenly, the whole building shook and collapsed.
2. A tidal wave is a very large ocean wave that is caused by a storm or an earthquake.
3. My sister likes wearing traditional clothes on her wedding day.
4. Many steps have been taken to reduce levels of environmental pollution.
A. Finish the second sentence so that it has the same meaning as the first.
1. Although Mr David Clark is over sixty, he goes jogging every morning.
2. I suggest we buy some canned food before the typhoon.
3. I wish I could go to the POP concert with you.
4. Many roses were planted by my father along the path.
B. Use the suggested words or phrases to write meaningful sentences.
1. Because the weather is bad, they cannot go out.
2. She started working at a coffee shop three months ago.
3. She likes to read books which are about sea creatures.
4. It is possible to store solar energy for a number of days.
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