2018--2019学年人教版必修五Unit 5 First aid Learning about language课时作业(4)
2018--2019学年人教版必修五Unit 5 First aid Learning about language课时作业(4)第2页

答案away

9Two-thirds the workers finished their work ahead of time.

答案of

10The young man buried himself the history book.

答案in

★三、阅读理解

  Tsunami is a natural disaster, which is a Japanese word that means "sea wave". A tsunami is a huge sea wave that forms mainly in the Pacific Ocean area. People will die and property will be destroyed when a tsunami hits the land. What causes these dangerous sea waves? Sometimes, tsunamis are caused when earthquakes take place underwater. Then, water begins to move up and down from the top of the ocean right down to the bottom. Waves begin to form, and each wave is called a tsunami.

  A tsunami is less than one metre high and can move at a speed of almost 800 kilometres per hour while it is far out in the ocean. But the tsunami rises much higher and moves more slowly as it comes closer to the land.

  The weather bureau(气象局)warns people over the radio and television when a tsunami is heading for the land. These warnings have helped save many lives.

1The Japanese word "tsunami" means " ".

A. earthquake B. sea wave

C. ocean water D. tornado

答案B

解析细节理解题。由第一段第一句". . . which is a Japanese word that means'sea wave'. "可以得出答案。

2According to the passage, a tsunami can be caused by .

A. an underwater earthquake

B. heavy rains

C. waves hitting the land

D. tornado

答案A

解析细节理解题。由第一段第五句可知, 水下地震可能引发海啸。

3As the tsunami moves toward the land, it .

A. picks up more speed

B. becomes far less dangerous

C. rises higher and higher