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
财经
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is
admin
2013-04-04
80
问题
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is small.Pruning involves cutting away of overgrown and unwanted branches,and the inexperienced gardener can be encouraged bv the thought that more damage results from doing it unnecessarily than from leaving the trees to grow in their own ways.
First,pruning may be done to make sure that trees have a desired shape or size.The object may be to get a tree of the right height,and at the same time to help the growth of smail side branches which will thicken its appearance or give it a special shape.Secondly,pruning may be done to make the tree healthier. You may cut out diseased or dead wood,or branches that are rubbing against each other and thus causing wounds.The heahh of a tree mav be encouraged by removing the branches that are locking up the centre and SO preventing the free movement of air.
One result of pruning is that an open wound is left on the tree and this provides an easv entry for diseases,but it is a wound that will heal(愈合).Often there is a race between the healing and the disease as to whether the tree will live or die,or that there is a Deriod when the tree is at risk. It should be the aim of every gardener to reduce the risk as far as possible.It is essential tO make the area which has been pruned smooth and clean,for healing will be。slowed down by roughness. You should allow the cut surface to dry for a few hours and then paint it with one of the substances available from garden shops produced especially for this purpose.Pruning is usually done in winter,for then you can see the shaPe of the tree clearlv without the interference(~)from the leaves and it is,too,very unlikely that the cuts you make will bleed.If this does happen,it is,of course,impossible to paint them properly.
A good gardener prunes a tree__________.
选项
A、several times throughout the year
B、as quickly as possible
C、occasionally when necessary
D、regularly every winter
答案
C
解析
由文章第一句话可知,必要的时候才需要剪枝,但需要剪枝的时候不多。故选C。
转载请注明原文地址:https://kaotiyun.com/show/Kbgc777K
本试题收录于:
英语题库银行系统招聘考试分类
0
英语
银行系统招聘考试
相关试题推荐
小张、小王两人同时从甲地出发,驾车匀速在甲、乙两地之间往返行驶。小张的车速比小王快,两人出发后第一次和第二次相遇都在同一地点,问小张的车速是小王的几倍?()
Withonlyaboutl,000pandasleftintheworld,Chinaisdesperatelytryingtoclonetheanimalandsavetheendangeredspecies.T
Scienceisadominantthemeinourculture.Sinceittouchesalmosteverytacetofourlife.educatedpeopleneedatleastsomeac
Thehealth-careeconomyisrepletewithunusualandevenuniqueeconomicrelationships.Oneoftheleastunderstoodinvolvesthe
ForgetTwitterandFacebook,GoogleandtheKindle.Televisionisstillthemostinfluentialmedi—umaroundIndeed,notmanyofthe
James’SNewBicycleJamesshookhismoneyboxagain.Nothing!Hecarefully【B1】__________thecoinsthatlayonthebed,$24.52was
TherewasaGreekshopkeeperinasmallconnershopinLondon.Shetaughtmeaboutthe【C1】______ofanactofkindness,whichhas
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
Hewaseagertomakesomeextramoney,sinceduringtheseyearshecouldhardlyliveonhis______.
随机试题
关于酶原没有酶活性的原因是
某新建5×30m混凝土简支梁桥,应将该桥的上部构造预制和安装划分为2个分部工程。()
对于一般性建设项目的环境影响评价工作,()直接影响到该项目投入生产后,资源能源利用效率和废弃物产生。
企业内部银行是一种经营部分银行业务的非银行金融机构。需要经过中国人民银行审核批准才能设立。()(2014年)
发行价格低于金融工具的票面金额称作()。
关于职业化,正确的说法有()。
根据下列资料,回答下题。2012年1~5月份,全国房地产开发投资22213亿元,同比增长18.5%,增速比1~4月份回落0.2个百分点。其中,住宅投资15098亿元,增长13.6%,增速回落0.3个百分点。1~5月份,商品房销售面积288
1945年8月,毛泽东指出“抗日战争阶段过去了,新的情况和任务是国内斗争”。当时,此斗争主要集中在()
西欧中世纪教育的典型特征是()。
台式计算机中的CPU是指()。
最新回复
(
0
)