Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Read the text and then choose the best answer A, B, C or D.
Tsunamis, whose name derives from the Japanese expression for "high wave in a harbor", are giant sea wave. These waves are quite different from storm surges. They are also referred to by the general public as tidal waves although they have nothing to do with tides. Scientists often refer to them as seismic sea waves, which is far more appropriate because they are often the result of undersea seismic activity.
Tsunamis can be caused when the sea floor suddenly moves, during an underwater earthquake or volcano, and the water above the moving earth is suddenly displaced. This sudden shift of water sets off a series of waves. These waves can travel great distances, at speeds close to 700 kilometres per hour. In the open ocean, tsunami waves are not very high, often no more than one or two metres. It is when they hit the shallow waters near the coast thay they increase in height, possibly up to 40 metres.
1. The passage mainly discusses __________
A. tidal waves B. tides C. tsunamis D. storm surges
2. All of the following is true about tidal waves EXCEPT __________
A. They are as another name for tsunamis
B. They are caused by sudden changes in high and low tides
C. this term is not used by the scientists
D. the name refer to the same phenomenon as seismic sea waves
3. The word "them" in the passage refers to __________
A. tidal waves B. tsunamis C. storm surges D. sea waves
4. The word "shallow" in the passage mostly means __________
A. not clear B. tidal C. coastal D. not deep
5. It can be understood from the passage that tsunamis __________
A. cause severe damage in the middle of the ocean
B. generally reach heights greater than 40 metres
C. are far more dangerous on the coast than in the open ocean
D. are often identified by ships on the ocean
Đáp án: A
Giải thích: area: khu vực
Dịch: Một số khu vực có nhiều sóng thần có thể có hệ thống cảnh báo giúp cho việc dự báo sóng thần trước khi nó tiếp cận đất liền và kịp thời di tản.
Đáp án A
Giải thích: area: khu vực
Dịch: Một số khu vực có nhiều sóng thần có thể có hệ thống cảnh báo giúp cho việc dự báo sóng thần trước khi nó tiếp cận đất liền và kịp thời di tản.
Give the right word formation for these provided word
1. ____tidal____waves are one of the great forces of nature. (tide)
2. Tsunamis, earthquakes and typhoons are ___natural__ disasters. (nature)
3. Our _____prediction____ turns out to be correct. (predict)
4. The building was __extensively_____ damaged by the fire. ( extend)
5. The most __disastrous__ earthquake in Japanese history damaged Tokyo and Yokohama. (disaster)6. A typhoon is going to hit our area. What sorts of___preparation___ shall we make? (prepare)
8. Today ____scientist___can predict when a tidal wave hits land. (science)
9. It was the biggest _____eruption______of Mt. Vesuvius for some years. (erupt)
10. A tidal wave brings death and ____destruction_____ in its way. (destroy)