雅思阅读真题+题目+答案:The intense rate of change in the world
雅思阅读真题原文如下:
A. The intense rate of change in the world gives rise to numerous new products – many of them electronic. What is brand new and state-of-the-art one month is quickly relegated to old model’ status the next. Within the world of computing, this frenetic pace of change has led to millions of out-dated, worthless products. Keystone, an American-based research company reported. In 2005, one computer became obsolete for every new one introduced in die market. By the year 2010, experts estimate that in the USA there will be over 500 million obsolete computers. Most of these computers will be destined for landfills, incinerators or hazardous waste exports.’ Old, outdated keyboards, monitors and hard drives all combine to produce what is now widely known as ‘e-waste’ and the way to appropriately dispose of them is proving to be a challenge.
B. Most computers are a complicated assembly of hundreds of different materials, many of which are highly toxic. Most computer users are unaware that these toxic metals, acids, plastics and other substances have been shown to be the cause of various blood diseases and cancers. Amongst workers involved in the recycling of computer products, there has been a proliferation of blood diseases. Printed circuit boards for example, contain heavy metals such as antimony, silver, chromium, zinc, lead, tin and copper. Environmentalist Kieran Shaw estimates there is hardly any other product for which the sum of the environmental impacts of raw material, extraction, industrial refining and production, use and disposal is so extensive as for printed circuit boards.
C. Workers involved in the disposal of computers via incineration are themselves being exposed to significantly high levels of toxicity. Copper, for example, is a catalyst in the release of harmful chemicals when exposed to the high tempera lures of incineration. In US and Canadian environments, incineration is one of the greatest sources of heavy metal contamination of the atmosphere. Unfortunately, another form of incineration, smelting, can present dangers similar to incineration. Concerns have been expressed that the Noranda .Smelter in Quebec, Canada is producing atmospheric pollutants from the residual presence of plastics in the e-scrap.
D. In an effort to explore other alternatives, landfills have been tried, Studies have Shown however, that even the best landfills are not completely safe. In feet the shortcomings of dealing with waste via modern landfills are well documented. The main ‘offender’ in the area of metal leaching is mercury. In varying degrees, mercury escapes or leaches from certain electronic devices such as circuit breakers, condensers and computer 。。。。。余下雅思阅读真题原文省略!
Questions 14-20
Reading Passage 2 has 7 paragraphs, A-G.
Choose the correct heading for each paragraph from the list of headings below.
Write the correct number, i-xi, in boxes 14-20 on your answer sheet.
List of Headings
I Exporting e-waste
Ii The hazards of burning computer junk
Iii Blame developed countries for e-waste
Iv Landfills are not satisfactory
V Producer’s legal responsibility
Vi The dangers of computer circuit boards
Vii Electronic changes bring waste
Viii European e-waste laws
Ix The dangerous substances found in computers
X Landfills and mercury leaching
Xi New products must contain recycled products
14 __________ Paragraph A
15 __________ Paragraph B
16 __________ Paragraph C
17 __________ Paragraph D
18 __________ Paragraph E
19 __________ Paragraph F
20 __________ Paragraph G
.。。。。余下雅思阅读真题题目及答案省略!
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