剑桥雅思阅读部分的题目可以进行一些分类总结，因为考试的常见内容一般都会在下次考试中出现的。下面就是今天
一、考试概述
本次考试三篇文章为疑似三旧，其中英国海岸线这篇确定为旧题，杂草及光的折射之前考试出现过，但是文章内容不尽相同。这次考试都为自然科学类话题，大家可以根据C7T3P1 , C9T4P2等文章进行复习。
二、具体题目分析
Passage 1 :
题名：The coming back of the "brome" Grass in Britain
内容：一种新型的杂草
题型：判断题8+配对题5
参考文章：(这篇文章内容相似，但仅供参考)
The coming back of the “brome " Grass in Britain
A Its Britain's dodo7 called interrupted brome because of its gappy seed-head, this unprepossessing grass was found nowhere else in the world. Sharp-eyed Victorian botanists were the first to notice it and by the 1920s the odd-looking grass had been found across much of southern England. Yet its decline was just as dramatic. By 1972 it had vanished from its last toehold-two hay fields at Pampisford near Cambridge. Even the seeds stored at the Cambridge University Botanic Garden as an insurance policy were dead7 having been mistakenly kept at room temperature. Botanists mourned: a unique living entity was gone forever.
B Yet reports of its demise proved premature. Interrupted brome has come back from the dead, and not through any fancy genetic engineering. Thanks to one green-fingered botanist, interrupted brome is alive and well and living as a pot plant Britain's dodo is about to become a phoenixr as conservationists set about relaunching itscareer in the wild.
C At first Philip Smith was unaware that the scrawny pots of grass on his bench were all that remained of a uniquely British species. But when news of the "extinction" of Bromus interruptus finally reached him, he decided to astonish his colleagues. He seized his opportunity at a meeting of the Botanical Society of the British Isles in Manchester in 1979^ where he was booked to talk about his research on the evolution of the brome grasses. It was sadr he saidr that interrupted brome had become extinct^ as there were so many interesting questions botanists could have investigated. Then he whipped out two enoimous pots of it. The extinct grass was very much alive.
D It turned out that Smith had collected see ds from the brome’s last refuge at Pampisford in l963,shortly before the species disappeared from the wild altogether.Ever since then, Smith had grown the grass on7 year after year. So in the end the hapless grass survived not through some high-powered conservation scheme or fancy genetic manipulation^ but simply because one man was interested in it. As Smith points out interrupted brome isn't particularly attractive and has no commercial value. But to a plant taxonomist thats not what makes a plant interesting.
E The brome's future, at least in cultivation now seems assured. Seeds from Smith's plants have been securely stored in the state-of-the-art Millennium Seed Bank at Wake hurst Place in Sussex. And living plants thrive at the botanic gardens at Kew, Edinburgh and Cambridge. This year7 "bulking up" is under way to make sure there are plenty of plants in all the gardens and sacksful of seeds are being stockpiled at strategic sites throughout the country.
F The brome's relaunch into the British countryside is next on the agenda. English Nature has included interrupted brome in its Species Recovery Programme and it is on track to be reintroduced into the agricultural landscape, if friendly farmers can be found. Alas, the grass is neither pretty nor useful — in fact it is undeniably a weed, and a weed of a crop that nobody grows these days, at that. The brome was probably never common enough to irritate farmers^ but no one would value it today for its productivity or its nutritious qualities. As agrass, it leaves agriculturalists cold.
G So where did it come from? Smith's research into the taxonomy of the brome grasses suggests that interrupts almost certainly mutated from another weedy grass^ soft brome hordeaceus. So close is the relationship that interrupted brome was originally deemed to be a mere variety of soft brome by the great Victorian taxonomist Professor Hackel. But in 1895r Geoie Claridge Drucer a 45-year-old Oxford pharmacist with a shop on the High Street decided that it deserved species status^ and convinced the botanical world. Druce was by then well on his way to fame as an Oxford dorv mayor of the cityr and a fellow of the Royal Society. A poorboy from Northamptonshire and a self-educated manT Druce became the leading field botanist of his generation. When Druce described a species, botanists took note.
H The brome's parentage may be clear, but the timing of its birth is more obscure. According to agricultural historian Joan Thirskr sainfoin and its friends made their first modest appearance in Britain in the early 1600s. Seeds brought in from the Continent were sown in pastures to feed horses and other livestock. But in those early days, only a few enthusiasts —mostly gentlemen keen to pamper their best horses —took to the new crops.
I Although the credit for the "discovery" of interrupted brome goes to a Miss A M. Barnard^ who collected the first specimens atOdsey Bedfordshire in 1849. The grass had probably lurked undetected in the English countryside for at least a hundred years.
Smith thinks the botanical dodo probably evolved in the late 17th or early 18thcenturyr once sainfoin became established.
J Like many once-common arable weeds, such as the corncockle, interrupted brome seeds cannot survive long in the soil. Each spring, the brome relied on farmers to resow its seeds; in the days before weedkillers and sophisticated seed sieves^ an ample supply would have contaminated stocks of crop seed. But fragile seeds are not the brome's only problem: this species is also reluctant to release its seeds as they ripen. Show it a ploughed field today and this grass will struggle to survive, says Smith It will be difficult to establish in today's "improved" agricultural landscape^ inhabited by notoriously vigorous competitors.
参考答案
1. 草名称的来源是因为要灭绝False
2. 草种没有被保存下来的原因是因为存放在室温环境下 True
3. English Nature 从一个叫做Garden的机构拿到草种 Not Given
4. True
5. False
6. True
True
8. Not Given
9. H研究出新物种的人 l〇.C推彳嫩种的人
11. G如何种植和收获这4种
12. F