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
Complete the sentences below. Write NO MORE THAN TWO WORDS for each answer. Saving the juniper plant Background Juniper was one
Complete the sentences below. Write NO MORE THAN TWO WORDS for each answer. Saving the juniper plant Background Juniper was one
admin
2014-11-08
39
问题
Complete the sentences below.
Write NO MORE THAN TWO WORDS for each answer.
Saving the juniper plant
Background
Juniper was one of the first plants to colonise Britain after the last______.
Narrator: You will hear an Environmental Studies student giving a presentation about his project on saving an endangered species of plant. Now you have some time to look at Questions 31-40. Now listen and answer Questions 31-40
Student: 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 insect 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
ice age
解析
转载请注明原文地址:https://jikaoti.com/ti/6RtYFFFM
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
ThemostdramaticchangesthattookplaceduringtheseventeenthcenturyinFrenchculinarytechniquesconcernseasoning.Thest
ElizabethBishop’sCompletePoems(1927-1979)hascometoseemtomostofitsreaderssoachievedandsufficientasalife’swork
PART1Theexaminerwillaskyouquestionsaboutyourself,suchas:——What’syourname?——Wheredoyoulive?——Whatfamilyme
Discussiontopic:BooksExamplequestions:•Whatkindofbooksdopeopleinyourcountryliketoread?•Doyouthinkthatpeop
Aretheydifferentfromthewayspeoplegotnewsinthepastfewdecades?
Youshouldspendabout20minutesonthistask.Thetablebelowgivesinformationaboutpastandprojectedpopulationfigure
Highschoolstudentsshouldremainingeneralschoolsuntil17yearsold.Onlythencantheyknowthemselvesenoughtochooseth
Researchindicatesthatthecharacteristicswearebornwithhavemuchmoreinfluenceonourpersonalityanddevelopmentthanan
Somepeoplethinkthebestwaytoreducecrimeistogivelongerprisonsentences.Others,however,thinktherearebetterways
READINGPASSAGE1Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReadingPassage1below.
随机试题
A.低渗性脱水B.等渗性脱水C.高渗性脱水D.继发性脱水E.水过多高热2天未进食病人出现口渴、黏膜干燥、皮肤弹性下降
手少阴心经的荥穴是
沉井下沉出现倾斜偏差时,可采用()措施进行纠偏。
“备案号”栏应填写()。“标记唛码及备注”栏应填写()。
税务代理违反税收法律、行政法规,造成纳税人未缴或者少缴税款的,除由纳税人缴纳或者补缴应纳税款、滞纳金外,对税务代理人处以()。
y=x3+enxsinx,求y’。
当前经济全球化进程明显加快的主要原因是()。
以下关于数据的叙述中,不正确的是()。
表示显示器在横向和纵向上具有的显示点数的指标称为_____________。
Divorcedoesn’tnecessarilymakeadultshappy.Buttoughingitoutinanunhappymarriageuntilitturnsaroundjustmightdo,a
最新回复
(
0
)