剑雅19阅读题回忆版Test 3 Passage 2
剑桥雅思19收集了雅思考试真题共4套题目。羊驼雅思整理了剑雅19考试题Test 3的阅读题Passage 2回忆版，供考生们备考时复习参考。
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READING PASSAGE 2
A
You should spend about 20 minutes on Questions 14-26. which are based on Reading Passage 2 below.
The global importance of wetlands Wetlands are areas where water covers the soil, or is present cither at or near the surface of the soil, for all or par of the year, These are complex ecosystems, rich in unique plant and animal life. But according to the World Wide Fund for Nature (WWFN), half of the world's wellands have disappeared since 1990- converled or destroyed for commercial development, drainage schemes and the cxtraction of minerals and peat. Many of those that remain have been damaged by agricultural pesticides and fertilisers, industrial pollutants, and construction works.
B
Throughout history, humans have gathered around wetlands, and their fertile ecosystems have played an important part in human development, Consequently, they are of considerable religious, historical and archaeological value to many communitics around
the world. 'Wetlands directly support the livelihoods and well-being of millions of people', says Dr Matthew McCartney, principal researcher and hydrologist at the International Water Management Institute (lWMl). 'In many developing countries, large numbers of people are dependent on wetland agriculture lor lheir livelihoods'.
C
They also serve a crucial environmental purpose, 'Wetlands are one of the key tools in mitigating climate change across the planet, says Pieter van Eijk, head ofClimate Adaptation at Wetlands International (Wl), pointing lo their use as buffers that protect coastal areas lrom sea-level rise and exlreme weather events such as hurricanes and Hooding. Wetland coastal forests provide food and water, as well as shelter from storms, and Wl and other agencies are working to restore those forests which have been lost. 'lt can
be as simple as planting a few trees per hectare to create shade and substantially change a microclimale,' he says. 'lmplementing climate change projects isn't so much about money.'
D
The world's wetlands are, unlortunately, rich sources lor in-demand commodities, such as palm oil and pulpwood, Peatlands - wetlands with a waterlogged organic soil layer - are paricularly targeted. When peatlands are drained for cultivalion, they become net carbon emitlers instead of active carbon stores, and, according o Marcel Silvius, head ofClimate-smart Land-use at Wl, this practice causes six per cent ofall global carbon emissions. The clearance of' peatlands for planting also increases the risk of forest fires, which release huge amounts of CO2. 'We're seeing huge peatland forests with extremely high biodiversity value being lost for a few decades of oil palm revenues,' says Silvius.
E
The damage starts when logging companies arrive to clear the trees. They dig ditches to enter the peat swamps by boat and then float the logs out the same way. These are then used to drain water out of the peatlands to allow for the planling of corn, oil palms or pulpwood trees, Once the water has drained away, bacteria and fungi then break down the carbon in the peat and turn it into COz and methane., Meanwhile, the remainder of the solid matter in the peat starts to move downwards, in a process known as subsidence. Peat comprises 90 per cent water, so this is one of the most alarming consequences ofpeatland clearances.
'In the tropics, peat subsides at about four centimetres a year, so within half a century, very large landscapes on Sumatra and Borneo will become fooded as the peat drops below water level,’says Silvius. 'It's a huge catastrophe that's in preparation, Some provinces will lose 40 per cent of their landmass'.
F
And while these industries affect wetlands in ways that can easily be documented, Dr Dave Tickner ofthe WWFN believes that more subtle impacts can be even more devastating. 'Sediment run-offand fertilisers can be pretty invisible,’ says Tickner. 'Over-extraction of water is equally invisible, You do get shock stories about rivers running red, or even catching fire, but there's seldom one big impact that really hurts a wetland.’Tickner does not blame anyone for deliberate damage, however. 'I've worked on wetland
issues for 20 years and have never met anybody who wanted to damage a wetland', he says. 'It isn't something that people generally set out to do. Quite often, the effects simply come from people trying to make a living'.
G
Silvius also acknowledges the importance of income generation. 'It's not that we just want to restore the biodiversity of wetlands - which we do - but we recognise there's a need to provide an income for local people." This approach is supported by IWM. 'The idea is that people in a developing country will only protect wetlands if they value and profit from them,’ says McCartney. 'For sustainability, it's essential that local people are involved in wetland planning and decision making and have clear rights to use wetlands.’
H
The fortunes of wetlands would be improved, Silvius suggests, if more governments recognised their long-term value. 'Different governments have different attitudes,’ he says, and goes on to explain that some countries place a high priority on restoring wetlands, while others still deny the issue. McCartney is cautiously optimistic, however, 'Awareness of the importance of wetlands is growing', he says. 'It's true that welland degradation still continues at a rapid pace, but my impression is that things are slowly changing'.
Test 3
Questions 14-17
Reading Passage 2 has eight paragraphs, A-H.
Which paragraph contains the following information?
Write the correct letter, A-H, in boxes 14-17 on your answer sheet.
14 reference to the need to ensure that inhabitants of wetland regions continue to benefit from them
15 the proportion of wetlands which have already been lost
16 reference to the idea that people are beginning to appreciate the value of wetlands
17 mention of the cultural significance of wetlands
Questions 18-22
Complete the sentences below.
Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 18-22 on your answer sheet.
18 Peatlands which have been drained begin to release .………........ instead of storing it.
19 Once peatland areas have been cleared, …….… are more likely to occur.
20 Clearing peatland forests to make way for oil palm plantations destroys the ……..…. of the local environment.
21 Water is drained out of peatlands through the .…………..which are created by logging companies.
22 Draining peatlands leads to………… : a serious problem which can eventually result in coastal flooding and land loss.
Questions 23-26
Look at the following statements (Questions 23-26) and the list ofexperts below.
Match each statement with the correct expert, A-D.
Write the correct letter, A-D, in boxes 23-26 on your answer sheet.
23 Communities living in wetland regions must be included in discussions about the future of these areas.
24 Official policies towards wetlands vary from one nation to the next.
25 People cause harm to wetlands without having any intention to do so.
26 Initiatives to reverse environmental damage need not be complex.
List of Experts
A Matthew McCartney B Pieter van Eijk C Marcel Silvius D Dave Tickner |
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