2017届高考英语（重庆专用）二轮精练：选修6 unit5 The Power of nature单元测试_高考复习指南

2017届高考英语（重庆专用）二轮精练：选修6 unit5 The Power of nature单元测试

　　A．The smoke.

　　B．The clouds.

　　C．The fog.

　　D．The ash.

　　答案　D　[细节理解题。从第四段的“An ash cloud hid the sun for many hours”可知火山爆发产生的灰尘使得天空变暗了。 ]

　　63．The underlined word“it”in Paragraph 5

　　refers to________.

　　A．the body of old Harry

　　B．the location(place)of Harry's home

　　C．the opening on the top of Mount St.Helens

　　D．the place where Harry probably died

　　答案　B　[词义猜测题。该段提到“But Harry R. Truman... would not leave his home”，接下来文章说“Now it is covered with many feet of dirty ash”，因此it在这里指Harry's home。 ]

　　The ground we walk on seems firm, but deep under the earth and under the sea the rocks change and move. In some parts of the world there are“fire mountains”， which we call volcanoes. From time to time they burst open and throw out fire and burning ash. These volcanoes are very dangerous.

　　Hong Kong does not have any volcanoes but there are many in Indonesia and Philippines. There is also a famous mountain near Tokyo, Japan, which is a volcano too. Its name is Mount Fuji. For much of the year, it is covered with snow.

　　One of the most famous volcanoes which erupted(喷发)in recent times was Krakatoa, on an island in Indonesia. The first explosions(爆发)took place on 20th May, 1883, but the big eruption did not come until the 26th and 27th August of that year. The people on the island were used to the explosions by that time, and so they were completely unprepared for this terrible happening. Almost all the people on the island died and the explosion also made huge waves in the sea, which drowned(淹死)many people on the other island nearby. After the eruption was over, people saw that the whole northern part of the island had completely disappeared. Scientists say that 15 cubic(立方)kilometers of rocks and ash were thrown up in the explosion. The noise of the explosion was heard nearly 5,000 kilometers away in the middle of the Indian Ocean, and the city of Jakarta was completely dark for about two and a half hours.