首页
登录
职称英语
Trees should only be pruned when there is a good and clear reason for doing s
Trees should only be pruned when there is a good and clear reason for doing s
游客
2025-03-29
12
管理
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 diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches 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 without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly. [br] A good gardener prunes a tree______.
选项
A、at intervals throughout the year
B、as quickly as possible
C、occasionally when necessary
D、regular every winter
答案
C
解析
根据文中第一段的“more damage results from doing it unnecessarily than from learing the tree to grow in its own way.”可知,不必要的剪枝会给树木带来更多的伤害。据此可知,好的园丁只是在必要的时候才修剪树木,C项正确。
转载请注明原文地址:https://tihaiku.com/zcyy/4017633.html
相关试题推荐
AWhileexpertsinbasicscienceareimportant,BskilledtalentsshouldbetheCo
Criticismwithoutsuggestingareasofimprovementisnot______andshouldbeavoi
Writeapassageofabout150wordsonthefollowingtopic:ShouldAfricandi
PerhapsIshouldnothavedoneso,butIchangedmymindaboutthenewjobeven
Aschildrengetolder,self-disciplineshouldtaketheplaceofimposeddisc
Aschildrengetolder,self-disciplineshouldtaketheplaceofimposeddisc
Aschildrengetolder,self-disciplineshouldtaketheplaceofimposeddisc
Aschildrengetolder,self-disciplineshouldtaketheplaceofimposeddisc
Inno______shouldyoudothiswithouthelpandadvicefromyourdoctor—restricti
Itissuggestedthatallgovernmentministersshould______informationtotheirf
随机试题
"Iwouldtellanyonewho’sthinkingaboutgoingbacktoschoolthatit’s
HowAdvertisementIsDone?A)Whenwechooseawordwedomorethangive
NoticeOverthepastmonththePersonnelOffice
It’sHardtoCleanBigDataA)KarimKeshayjee,aTorontophy
Organicfarmershadfoughttopreventgenetically-engineeredcropsfrombein
(2017年)下列关于关税税率适用的说法中,正确的是( )。A.征收报复性关税的
目前,我国商业银行的资本充足率是以( )为基础计算的。A.会计资本 B.经济
《中华人民共和国民法典》第一百八十八条规定,向人民法院请求保护民事权利的诉讼时效
王某向刘某借款30万元,约定还款期限为2012年3月3日,在借条的背面写尽“担
县级以上地方人民政府消防救援机构应当将发生火灾可能性较大以及发生火灾可能造成重大
最新回复
(
0
)