首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Saving the juniper plant Background Juniper was one of the first plants to colonise Britain after the last【31】________ Its smo
Saving the juniper plant Background Juniper was one of the first plants to colonise Britain after the last【31】________ Its smo
admin
2022-03-30
34
问题
Saving the juniper plant Background
Juniper was one of the first plants to colonise Britain after the last【31】________
Its smoke is virtually【32】________, so juniper wood was used as fuel in illegal activities.
Oils from the plant were used to prevent【33】________ spreading.
Nowadays, its berries are widely used to【34】________ food and drink.
Ecology
Juniper plants also【35】________several species of insects and fungus.
Problems
In current juniper populations, ratios of the【36】________are poor.
Many of the bushes in each group are of the same age, so【37】________of whole
populations is rapid.
Solutions
Plantlife is trialling novel techniques across【38】________areas of England.
One measure is to introduce【39】________ for seedlings.
A further step is to plant【40】________from healthy bushes.
【L39】
For my presentation, I’m going to summarise what I’ve found out about efforts to save one plant species... the juniper bush. It once flourished in Britain and throughout the world’s temperate zones, but over the last few decades has declined considerably. Before I go on to explain the steps being taken to save it in England, let me start by looking at some background information and why the juniper has been so important in cultural as well as ecological terms, historically and in the present day.
Firstly, I want to emphasise the fact that juniper is a very ancient plant. It has been discovered that
it was actually amongst the first species of plants to establish itself in Britain in the period following the most recent Ice Age.
And, as I say, it has a much-valued place in British culture. It was used widely as a fuel during the Middle Ages because, when burnt,
the smoke given off is all but invisible
and so any illicit activities involving fire could go on without being detected, for example, cooking game hunted illegally. It also has valuable medicinal properties. Particularly during large epidemics,
oils were extracted from the juniper wood and sprayed in the air to try to prevent the spread of infection in hospital wards.
And these days, perhaps its most well-known use is in cuisine... cooking,
where its berries are a much-valued ingredient, used to flavour a variety of meat dishes and also drinks.
Turning now to ecological issues, juniper bushes play an important role in supporting other living things.
If juniper bushes are wiped out, this would radically affect many different insects and also fungus species. We simply cannot afford to let this species die out.
So, why is the juniper plant declining at such a rapid rate? Well, a survey conducted in the north and west of Britain in two thousand and four to five showed that a major problem is the fact that in present-day populations,
ratios between the sexes are unbalanced
and without a proper mix of male and female, bushes don’t get pollinated. Also, the survey found that in a lot of these populations, the plants are the same age, so this means that bushes grow old and start to die at similar times...
1eading to swift extinction of whole populations.
Now, the charity Plantlife is trying to do something to halt the decline in juniper species. It’s currently trying out two new major salvage techniques,
this time focusing on lowland regions of England.
The first thing it’s trying is to
provide shelters for the seedlings
in areas where juniper populations are fairly well established. These, of course, are designed to help protect the plants at their most vulnerable stage. A further measure is that in areas where colonies have all but died out,
numbers are being bolstered by the planting of cuttings
which have been taken from healthy bushes elsewhere.
Now, I hope I’ve given a clear picture of the problems facing this culturally and ecologically valuable plant and of the measures being taken by Plantlife to tackle them. If anyone has any questions, I’d be happy to...
选项
答案
shelter(s)
解析
录音中provide“提供”是题目中的introduce“引入”的同义转述。
转载请注明原文地址:https://kaotiyun.com/show/cv8O777K
本试题收录于:
雅思听力题库雅思(IELTS)分类
0
雅思听力
雅思(IELTS)
相关试题推荐
LookattheintroductiontoWestThamesCollegeonthefollowingpageandatthestatements(Questions14~20)below.Inboxes14-
ItispossibleforsomestudentsinHigherEducationinBritaintoborrowmoneythroughagovernmentscheme.Theseloansarecal
ReadthepassagebelowandanswerQuestions21-27.CANTERBURYCOLLEGELISTOFCOURSESCOURSEAThiscoursew
ReadthetextbelowandanswerQuestions7-14.INTERCITYSleeperbetweenLondonandScotlandMostticketsmayb
Youshouldspendabout20minutesonQuestions1-13whicharebasedonReadingPassage1below.TheSweetScentofSuccessMany
TheStudyofChimpanzeeCultureA.Afterstudyingthesimilaritiesbetweenchimpanzeesandhumansforyears,researchershav
TheConstructionEducationCentrehasexistedfor______.Equipmentisavailablefor______days.
Atthestartofthetutorial,thetutoremphasisestheimportanceof【26】
CompletethediagrambywritingNOMORETHANTHREEWORDSinthebaresprovided.
FutureofE-books:Fromapracticalviewpoint,thestoragecapacityofE-booksmakesiteasyonbothbusinessandleisuretr
随机试题
为响应党中央坚决打赢脱贫攻坚战的号召,民政部启动社会工作服务机构“牵手计划”。某社会工作者服务机构派遣社会工作者小李深入贫困山区,协助当地社会工作服务机构参与脱贫攻坚工作。在服务过程中,小李发现由于村民对社会工作缺乏了解,使得当地社会工作者要花费较长时间才
______isanaturalmeansofwritinginrevealingtheprince’sinnerconflictandpsychologicalpredicamentinShakespeare’sHa
求由曲线y2=(x-1)3和直线x=2所围成的图形绕Ox轴旋转所得旋转体体积.
盐酸哌替啶的保存应
下列对于强制性标准监督检查的表述,错误的是()。
下列国家或地区不要求对来自中国大陆货物木质包装进行检疫处理的是( )。
企业董事会或类似机构通过的利润分配方案中拟分配的现金股利或利润,应确认为应付股利。()
A、 B、 C、 D、 B每行前两个图形去同存异得到第三个图形。
地缘政治学
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestudyofthesea".Beforethenineteenthcentury,s
最新回复
(
0
)