首页
登录
职称英语
Saving the juniper plant BackgroundJuniper was one of the first plants to colon
Saving the juniper plant BackgroundJuniper was one of the first plants to colon
游客
2025-02-10
21
管理
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. [br] 【L38】
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
lowland
解析
录音原文的trying out“试验”和regions“地区”对应题目中的trialing和areas。
转载请注明原文地址:https://tihaiku.com/zcyy/3950503.html
相关试题推荐
SavingthejuniperplantBackgroundJuniperwasoneofthefirstplantstocolon
SavingthejuniperplantBackgroundJuniperwasoneofthefirstplantstocolon
SavingthejuniperplantBackgroundJuniperwasoneofthefirstplantstocolon
SavingthejuniperplantBackgroundJuniperwasoneofthefirstplantstocolon
Scientistshavetraditionally(classified)plantsby(groupingthem)accordingt
(Dueto)persistentinbreeding,self-pollinatingplants(have)geneticallymore
Greenplantscombine______withwaterandcarbondioxidetomakefood.A、energy
Lichens.probablythehardiestofallplants,livewherevirtuallynoth
Seahorses(usually)livealongtheshoreamongseaweedand(other)plantstowh
[originaltext]Today,wearegoingtotalkaboutaspecialwaysomeplantsr
随机试题
Reebokexecutivesdonotliketoheartheirstylishathleticshoescalled"f
[originaltext]Host:Hello!Ladiesandgentlemen.Itgivesmegreatpleasure
下列()不属于呼叫系统的组成。A.护士站 B.走廊显示挂屏 C.总控操作
除住宅外,多层建筑内的厨房隔墙耐火极限及隔墙上防火门窗等级分别是:[2009-1
医师李某,经过多年努力终于考核合格,取得了麻醉药品和第一类精神药品的处方资格A、
基金销售机构应当建立基金销售适用性管理制度,至少包括以下内容( )。 Ⅰ.对
下述哪项不是血瘀证色脉改变A.皮肤有紫色斑块 B.腹壁青筋暴露 C.出血紫暗
某混凝土试块强度值不满足规范要求,但经法定检测单位对混凝土实体强度经过法定检测后
国家权力机关的监督,是指各级人民代表大会及其常务委员会对公安机关及其人民警察(
民族区域自治制度与特别行政区制度的区别不包括()。A.政治制度不同 B.经济制
最新回复
(
0
)