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【L31】________ Its smok
Saving the juniper plant Background Juniper was one of the first plants to colonise Britain after the last【L31】________ Its smok
admin
2022-09-09
62
问题
Saving the juniper plant
Background
Juniper was one of the first plants to colonise Britain after the last【L31】________
Its smoke is virtually【L32】________, so juniper wood was used as fuel in illegal activities.
Oils from the plant were used to prevent【L33】________spreading.
Nowadays, its berries are widely used to【L34】________food and drink.
Ecology
Juniper plants also【L35】________several species of insects and fungus.
Problems
In current juniper populations, ratios of the【L36】________are poor.
Many of the bushes in each group are of the same age, so【L37】________of whole populations is rapid.
Solutions
Plantlife is trialling novel techniques across【L38】________areas of England.
One measure is to introduce【L39】________for seedlings.
A further step is to plant【L40】________from healthy bushes.
【L35】
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...
leading 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
support
解析
录音原文的other living things“其他生物”是对题目中several species of insects and fungus“昆虫和菌类的某些物种”的概括。
转载请注明原文地址:https://www.kaotiyun.com/show/fmnD777K
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
Everywhereintheworld,plantsandanimalslivetogether.Someanimalseatplantstheylivewith.Someplantsstayalivebecaus
Everywhereintheworld,plantsandanimalslivetogether.Someanimalseatplantstheylivewith.Someplantsstayalivebecaus
MidburyDramaClubBackgroundClubstagedin1957Prizerecentlywonby【L1】________sectionUsuallyperforms【L2】_____
CreatingartificialgillsBackgroundTakinginoxygen;mammals—lungs;fish—gillsLong-helddreams—humansswimm
CreatingartificialgillsBackgroundTakinginoxygen;mammals—lungs;fish—gillsLong-helddreams—humansswimm
随机试题
试述对资本主义工商业的社会主义改造。
简述国际商事仲裁和国际民事诉讼的区别。
法律关系的客体是权利义务共同指向的对象。()
下列哪些是鼻腔外侧壁的结构
在进行价值工程分析时,方案创新结束后包括如下几个具体工作(步骤):①概括评价②指定具体方案③实验研究④详细评价⑤提案审批。进行这些工作的正确的顺序是()。
基金销售机构在注重产品、分销和促销的同时,还必须在高质量的服务、品牌的形象宣传等方面下功夫,以增强可能的信誉,扩大客户基础。这是体现基金销售在运用4Ps理论时的()。
某教师学习《义务教育语文课程标准(2011年版)》后,关于合理开发和利用资源做了如下笔记。下列笔记内容说法不恰当的一项是()。
根据《劳动法》的规定,日劳动时间一般是8小时工作制,每日工休时间不少于(),每周工作日5天,每年享受法定的节假日,如果有加班,还要有不同数量的补贴或倒休制度。
噱头
请在【答题】菜单下选择【进入考生文件夹】命令,并按照题目要求完成下面的操作。注意:以下的文件必须都保存在考生文件夹下。为进一步提升北京旅游行业整体队伍素质,打造高水平、懂业务的旅游景区建设与管理队伍,北京旅游局将为工作人员进行一次业务培
最新回复
(
0
)