Question

【題目】Asia’s mountain glaciers (冰川) will lose at least a third of their mass through global warming by the century’s end, with serious consequences for millions of people who rely on them for fresh water, researchers have said. The high mountains of Asia consist of a geographical region surrounding the Tibetan Plateau, holding the biggest store of frozen water outside the poles. It feeds many of the world’s great rivers, including the Ganges, the Indus and the Yarlung Zangbo River, on which hundreds of millions of people depend.

Nearly 200 nations adopted the Paris Agreement in 2015, which sets the goal of limiting warming to a level of “well below” 2°C, while “pursuing efforts” to achieve a lower ceiling of 1.5°C. Earth’s surface has already warmed by about 1°C, according to scientists.

The Asian high mountains, the new study said, were already warming more rapidly than the global average. A global temperature rise of 1.5°C would mean an average increase in the region of about 2.1°C, with differences between mountain ranges - all of which will warm by more than 1.5°C. The Hindu Kush mountain range would warm by about 2.3°C and the eastern Himalaya Mountains by 1.9°C, the study forecast.

“Even if temperatures stabilize at their current level, (glacier) mass loss will continue for decades to come,” the researchers added. “For the high mountain glaciers to survive, it is vital to reduce the global temperature increase to the lowest possible level.”

A study in July in the journal Nature Climate Change said there was only a 5% chance of holding global warming under 2°C. For 1.5°C, the chance was about 1%. On current trends, some experts project Earth is on track to warm by about 3°C.

【1】What is stressed about Asia’s mountain glaciers in the first paragraph?

A. The reason for its melting.

B. Its importance.

C. Its geographical condition.

D. The consequences caused by its decrease.

【2】What do we know about the temperature on the earth’s surface?

A. It keeps up its normal level.

B. It has risen too much since the Paris Agreement was made.

C. It is far below the level that the Paris Agreement demands.

D. It is near the lower ceiling that the Paris Agreement demands.

【3】How may we guarantee these glaciers, continued existence, according to researchers?

A. Hold global warming under 2°C.

B. Try to save water as much as we can.

C. Keep global temperature increase to a minimum.

D. Make the global temperature stable at its current level.

【4】How does the author develop the passage?

A. Giving examples. B. Describing.

C. Presenting data. D. Comparing.

Answer 1

【答案】

【1】B

【2】D

【3】C

【4】C

【解析】

本文屬于應用文。據(jù)英媒報道，到本世紀末，亞洲山區(qū)的冰川將因全球變暖而流失至少1/3，這將給數(shù)百萬依賴冰川獲得清潔水源的民眾帶來可怕后果。研究人員稱，若全球溫度上升高于1.5攝氏度，亞洲冰川在本世紀末可能還會流失更多。

【1】主旨大意題。第一段內(nèi)容：研究人員稱，到本世紀末，亞洲山區(qū)的冰川將因全球變暖而流失至少1/3，這將給數(shù)百萬依賴冰川獲得清潔水源的民眾帶來可怕后果。這片冰川灌溉了世界上許多偉大河流，包括養(yǎng)育了數(shù)億人的恒河、印度河和以及雅魯藏布江。由此可知這片冰川的重要性。分析選可知B項正確。

【2】推理判斷題。根據(jù)第二段內(nèi)容：《巴黎協(xié)議》設(shè)定的目標是將升溫幅度限制在2攝氏度以下，并為把升溫控制在1.5攝氏度之內(nèi)而努力。據(jù)科學家稱，地球表面溫度已經(jīng)上升1攝氏度左右。由此可判斷，現(xiàn)在地球表面的溫度（1攝氏度左右）低于巴黎協(xié)議規(guī)定的2攝氏度以下.分析選項可知D項正確。

【3】細節(jié)理解題。根據(jù)第四段最后一句the researchers added. “For the high mountain glaciers to survive, it is vital to reduce the global temperature increase to the lowest possible level.” 可知，為讓高山冰川繼續(xù)存在，“就必須將全球氣溫升高的幅度降到最低”。分析選項可知C項符合題意，故選C項。

【4】 推理判斷題。通讀全文可知，本文主要以具體的數(shù)據(jù)來展開本文的。如“a third of their mass….limit average global warming to 1.5C over pre-industrial levels, …With warming of 3.5C, 4C and 6C…Asian glacier losses could amount to 49%, 51% or 65%... achieve a lower ceiling of 1.5C…. would warm by about 2.3C…A study in July in the journal Nature Climate Change said there was only a 5% chance of holding global warming under 2C. For 1.5C, the odds were about 1%.”等，由此可知本文以數(shù)據(jù)展開全文的，分析選項可知C項（提供數(shù)據(jù)）符合題意。