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
86
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://www.kaotiyun.com/show/umnD777K
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
下列给定程序中函数fun的功能是:用冒泡法对6个字符串进行升序排列。请改正程序中的错误,使它能得出正确的结果。注意:部分源程序在文件MODI1.C中,不得增行或删行,也不得更改程序的结构!#include<stdio.h>#include<stri
下列给定程序的功能是:读入一个英文文本行,将其中每个单词的第一个字母改成大写,然后输出此文本行(这里”单词”是指由空格隔开的字符串)。例如,若输入”Iamastudenttotaketheexamination”,则应输出”IAmASt
if语句的语法格式可描述为:格式1:if()或格式2:if()else关于上面的语法格式,下列表述中错误的是()。
考生文件夹下存在一个数据库文件“samp2.mdb”,里面已经设计好表对象“tCourse”、“tGrade”和“tStudent”,试按以下要求完成设计:(1)创建一个查询,查找并显示“姓名”、“政治面貌”和“毕业学校”三个字段的内容,所建查询名
张老师撰写了一篇学术论文,拟投稿于大学学报,发表之前需要根据学报要求完成论文样式排版。根据考生文件夹下“Word素材.docx”完成排版工作,具体要求如下:1.在考生文件夹下,将“Word素材.docx”另存为“Word.docx”(“.docx
张老师撰写了一篇学术论文,拟投稿于大学学报,发表之前需要根据学报要求完成论文样式排版。根据考生文件夹下“Word素材.docx”完成排版工作,具体要求如下:设置参考文献列表文字字号为小五号,中文字体为宋体,西文字体为TimesNewRoman;并为
-Theinterlocutorgivesyouandyourpartneralistoftopics.Bothofyouneedtochooseonetodiscusstogether.Theinterloc
PeopleallovertheworldknowWimbledonasthecentreoflawntennis.In1874itwasacountryvillage,butitwasthehome
ResearchingtheoriginofmedievalmanuscriptsBackgroundMedievalmanuscripts—handwrittenbooksproducedbetweenthefift
Theexhibitioncentre
随机试题
科学技术和社会生产力的发展,一定程度上取决于人的积极性和创造性。()
文件的基本运算有检索和修改两类。而检索又有三种方式,它们是_______存取、直接存取和按关键字存取。
肾病综合征患者出现高脂血症的原因是
某啤酒厂灌装车间,有传送带、洗瓶机、烘干机、灌皱机、装箱机、封箱机等设备。为减轻职业危害的影响,企业为职工配备了防水胶靴、耳塞等劳动保护用品。2007年7月8日,维修工甲对洗瓶机进行维修时,将洗瓶机长轴上的一颗内六角螺栓丢失,为了图省事,甲用8号铅丝插入孔
下列各项中,属于开业税务登记代理的工作有()。
下列属于贵州的三个自治州的是()。
闪电对于()相当于()对于住院
在世界上人类进食的工具主要分为3类:欧洲和北美用刀、叉、匙,一餐饭三器并用;中国、日本、越南、韩国和朝鲜等用筷;非洲、中东、印尼及印度次大陆以手指抓食。美国加利福尼亚大学名誉教授怀特调查后说:“用刀叉、手指和筷子吃饭的3类人,都以强硬态度维护自己的餐具。”
AccordingtoMr.Tait,whatshouldwedotoimprovethesituationoftoothdecay?
TheChinesefilmsuperstaroncesaidthathewouldrather________rememberedasacommonpersonthanasacelebrity.
最新回复
(
0
)