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
Trees should only be pruned when there is a good and clear reason for doing so and, fortunately, the number of such reasons is s
Trees should only be pruned when there is a good and clear reason for doing so and, fortunately, the number of such reasons is s
admin
2015-01-30
73
问题
Trees should only be pruned when there is a good and clear reason for doing so and, fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.
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 small 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 health of a tree may be encouraged by removing blanches that are blocking 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 easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk, It should be the aim of every gardener to reduce that risk of death 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 clearly without 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.
Directions: Answer the following questions with the information given in the passage in a maximum of 10 words for each question.
When is the risk period of trees?
选项
答案
When the tree is pruned.
解析
转载请注明原文地址:https://www.kaotiyun.com/show/e4VK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
(1)TherearetwobigproblemswithAmerica’snewsandinformationlandscape:concentrationofmedia,andnewwaysforthepower
(1)InhisbookInDefenceofFood:AnEater’sManifesto,MichaelPollanurgedpeopleto"Eatfood.Nottoomuch.Mostlyplants.
(1)Theschoolmasterwasleavingthevillage,andeverybodyseemedsorry.ThemilleratCresscombelenthimthesmallwhitetilt
(1)He’sonly11monthsold,butCharlieGardcommandsanarmyoftheimpassionedthatnumbersinthehundredsofthousandsand
A、A$1.5billioninvestmenttoupgradebridges.B、Plansoftransportingthestuffeasilytotheairports.C、Projectsofdecreasi
Nothingwastopreventhimnowfrombecomingtherichest,and________thehappiestmanintheworld.
Sue;Brr!It’sreallyfreezingoutside.Sam:Yes,itisabitchilly.Sue;Chilly?______Mynosealmostdroppedoff.Idon’tun
Yourclasshasrecentlyhadadiscussiononviolenceontelevisionandinfilmstoday.Yourteacherhasnowaskedyoutowritea
ThomasWheeler,【D1】______oftheMassachusettsMutualLife【D2】______Company,andhiswifeweredrivingalonganinterstatehighwa
Jellyfish【B1】______Theylooklikejelly,butofcoursetheyaren’t.Andtheycertainlyaren’tfish.So,whatexactlyareth
随机试题
Youarebusyfillingouttheapplicationformforapositionyoureallyneed;let’sassumeyouonceactuallycompletedacouple
脱疽患者,男,30岁。症见患肢夜间痛甚难寐,抱膝而坐,患肢暗红,下垂更甚,汗毛脱落,舌质暗红,苔薄白,脉弦。证属
根据《高层民用建筑设计防火规范》的要求,当高层建筑的建筑高度超过()m时,建筑设计采取的特殊防火措施应提交国家消防主管部门组织专题研究、论证。
出现下列()情况的水泥属于不合格。
中国人民银行可以履行的职责有( )。
简述如何维持课堂纪律。
下列有关法的特征的表述哪些是正确的?()
在ARM处理器中,作为记录程序状态的寄存器是___________【49】,其中状态位T的作用是在ARM状态与Thumb状态间进行切换,当T=1时处理器处于的状态是___________【50】状态。
Thebiologist,thephilosopher,andtheastronomeralltryintheirwaystounderstandthe______ofthecosmos.
Ofcourse,mostimmigrantsdidnotgetrichovernight,butthe______ofthemwereeventuallyabletoimproveupontheirformer
最新回复
(
0
)