Câu hỏi:
26/06/2023 3,057Read 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 41 to 47.
Alaska is disappearing slowly, but surely. It is estimated that since the 1950s, as much as fifteen percent of Alaska's land area has disappeared. How can a whole state be disappearing? The problem is that Alaska's glaciers are melting. The state has more than 100,000 glaciers. These glaciers account for about 75,000 square kilometers, or five percent, of the state's area. That is an area of land larger than Ireland! According to a recent report by the US Geological Survey, ninety-nine percent of Alaska's glaciers are either retreating or diminishing. This diminishing seems mainly due to the increase in global temperatures. Since the 1960s, the average year-round temperature has increased by almost 3° C. Additionally, the average winter temperature has increased by over 6° C. Presently, an estimated 100 cubic kilometers of ice is disappearing from Alaskan glaciers every year. It maybe even more in the near future, as some scientists predict that the average world temperature could go up 4 to 7°C by the year 2100. Another problem facing Alaska is its thawing permafrost. Much of the land in Alaska used to be permanently frozen or frozen for most of the year. Now, the thawing permafrost is causing a number of problems for people living in Alaska. Roads and utility poles are collapsing as the ground around and under them warms and softens. Also, the hard permafrost that originally prevented beaches from eroding during violent storms is now melting. People who live along Alaska's coasts are being forced to relocate. For villages on small low islands, one terrible storm could wipe out the entire community. The melting permafrost and increasing temperatures are both affecting the forests of Alaska. As the permafrost under the forests melts, insects that normally do not turn up until the warmer seasons are appearing sooner. The spruce-bark beetle, for example, is increasing in numbers as a result of warmer winter temperatures. It usually takes about two years for these beetles to grow and reproduce in very cold weather. However, due to the increase in temperatures, spruce-bark beetles are reproducing faster and damaging as many trees in one year as they previously damaged in two. If something cannot be done to change things, Alaska's forests will not survive the turn of the century. Some scientists believe that human activity is linked to a global increase in weather temperature. Whatever the cause of rising temperatures may be, the fact remains that temperatures are warming, affecting Alaska for the worse. Horribly, this could be a preview of what will happen to the rest of the world in the next century.
What should be the best title for the passage?
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Trả lời:
Đáp án đúng là: D
Giải thích: Cả đoạn văn nói về cái nhìn toàn cảnh ở Alaska
Câu hỏi cùng đoạn
Câu 2:
Why are the forests in Alaska being destroyed?
Lời giải của GV VietJack
Đáp án đúng là: D
Giải thích:
Dựa vào câu: The problem is that Alaska's glaciers are melting.
Dịch: Vấn đề là các sông băng ở Alaska đang tan chảy.
Câu 3:
How could the events in Alaska be a preview for the rest of the world?
Lời giải của GV VietJack
Đáp án đúng là: B
Giải thích:
Dựa vào câu: Whatever the cause of rising temperatures may be, the fact remains that temperatures are warming, affecting Alaska for the worse.
Dịch: Cho dù nguyên nhân của nhiệt độ tăng có thể là gì, thực tế vẫn là nhiệt độ đang nóng lên, ảnh hưởng tồi tệ hơn đến Alaska.
Câu 4:
What do some scientists predict?
Lời giải của GV VietJack
Đáp án đúng là: D
Giải thích:
Dựa vào câu: People who live along Alaska's coasts are being forced to relocate. For villages on small low islands, one terrible storm could wipe out the entire community.
Dịch: Những người sống dọc theo các bờ biển của Alaska đang bị buộc phải di dời. Đối với những ngôi làng trên những hòn đảo nhỏ thấp, một cơn bão khủng khiếp có thể quét sạch toàn bộ cộng đồng.
Câu 5:
Normally, which is true regarding permafrost?
Lời giải của GV VietJack
Đáp án đúng là: C
Giải thích:
Dựa vào câu: Another problem facing Alaska is its thawing permafrost. Much of the land in Alaska used to be permanently frozen or frozen for most of the year.
Dịch: Một vấn đề khác mà Alaska phải đối mặt là lớp băng vĩnh cửu đang tan dần. Phần lớn đất đai ở Alaska từng bị đóng băng vĩnh viễn hoặc đóng băng trong phần lớn thời gian trong năm.
Câu 6:
The word "thawing" in the third paragraph is closest meaning to .
Lời giải của GV VietJack
Đáp án đúng là: B
Giải thích: thawn (v) tan chảy = melt
Dịch: Một vấn đề khác mà Alaska phải đối mặt là lớp băng vĩnh cửu đang tan .
Câu 7:
What is the main idea of this reading?
Lời giải của GV VietJack
Đáp án đúng là: D
Giải thích: ý chính của bài nói về nhiệt độ ấm lên đang ảnh hưởng đến vùng Alaska
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