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
41
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.
【L32】
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
invisible
解析
录音原文的all but“几乎是”是virtually“几乎,差不多”的同义替换。
转载请注明原文地址:https://jikaoti.com/ti/wgbiFFFM
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
下列选项中属于面向对象设计方法主要特征的是()。
使用VC6打开考生文件夹下的工程RevProj7。此工程包含一个源程序文件RevMain6.cpp,但该程序运行有问题。请改正主函数中的错误,使程序的输出结果是:MyNumber=0MyNumber=1MyNumber=2源
考生文件夹下有一个数据库文件“samp2.accdb”,其中存在已经设计好的表对象“tCollect”、“tpress”和“tType”,请按以下要求完成设计:创建一个查询,查找收藏品中CD盘最高价格和最低价格信息并输出,标题显示为“v_Max”和“v
在考生文件夹下,存在两个数据库文件和一个照片文件,数据库文件名分别为“samp1.accdb”和“dResearch.accdb”,照片文件名为“照片.bmp”。请按以下操作要求,完成表的建立和修改。(1)将考生文件夹下“dResearch.ac
某学术杂志的编辑徐雅雯需要对一篇关于艺术史的Word格式的文章进行编辑和排版,按照如下要求,帮助她完成相关工作。1.在考生文件夹下,将“Word素材.docx”文件另存为“Word.docx”(“.docx”为扩展名),后续操作均基于此文件,否则
Travellingcanbeawonderfuladventure.Travellingbyairplane,however,canbeverytiring.Thefollowing【K1】________(be)s
Chicago’sChildren’sHospitalistheluckyreceiverofasurprise$18milliongiftfromGladysHolm.Sheoncewasasecretarywh
It’satimewhenschool,homework,activesociallivesandpart-timejobskeepteenagers(青少年)busyfromearlyinthemorningun
Whenshouldthewomandealwiththematter?
WhichTWOthingsdoesJeromeadviseDaisytodointhefirstmonthoftutorials?ASeehertutoreveryweek.BReviewall
随机试题
衡量计算机中CPu的性能指标主要有()和字长两个。
化学发光酶免疫测定中常用来标记抗原或抗体的物质为
海关将由于某种原因多征收的关税退还给原纳税人时,应当退还按同期存款利率计算的利息。()
咨询师对求助者的四种常见看法中包括()。
根据下图,回答问题。若EF为地球公转轨道平面,PQ为地轴,下列变化可信的是()。
美国记者斯诺说:“每一场革命都有他自身的传奇。毛泽东率领数万工农红军所完成的战略转移,就是中国革命史上的伟大传奇”,他所说的“伟大传奇”是指:
当前,从严治党的重中之重是()
以下程序中函数scmp的功能是返回形参指针s1和s2所指字符串中较小字符串的首地址。#include<string>char*scmp(char*s1,char*s2){if(strc
SaveEnergyAtHomeOntheaverage,Americanswasteasmuchenergyastwo-thirdsoftheworld’spopulationconsumes.That’slar
A、ItispartoftheRoyalBotanicalGarden.B、Itholdsacollectionof8,000differentkindsofplants.C、Itcontainsmanygarde
最新回复
(
0
)