首页
登录
职称英语
Why should pruning be done? [originaltext] Trees should only be pruned when
Why should pruning be done? [originaltext] Trees should only be pruned when
游客
2023-11-15
36
管理
问题
Why should pruning be done?
Trees should only be pruned when there is a good and clear reason for doing so and the number of such masons is small. Pruning involves the cut ting 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 heavier. You may cut out diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. Removing branches that are blocking up the center and so preventing the free movement of air may en courage the health of a tree.
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 ih winter, for then you can see the shape of the tree clearly 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.
选项
A、To make the tree grow taller.
B、To improve the shape of the tree.
C、To get rid of the small branches.
D、To make the small branches thicker.
答案
B
解析
从文中我们知道剪枝的两个原因是“to make sure that trees have a desired shape or size”以及“make the tree heavier”,因此答案是B。
转载请注明原文地址:https://tihaiku.com/zcyy/3188173.html
相关试题推荐
Youshouldknowbetterthan______yourlittlesisterathomebyherself.A、toleav
Ishouldliketorentahouse,modern,comfortableand______inaquietneighborh
Thedogismissing.Heshouldn’thaveletthedoggooutofthehousealone.The
______weshouldbeglad.A、WeretheytoarrivetomorrowB、Theywouldarrivetomor
Whereisthepresenceofsecuritypatrolsmostevident?[br][originaltext]
Whereisthepresenceofsecuritypatrolsmostevident?[originaltext]AnOly
TheRussiancargoshipwassinking.Whatwasthedirectcause?[originaltext]
Wherewerethetwomenfilmed?[br][originaltext]Thepolicereleasedthef
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
随机试题
[originaltext]M:ThisTVsetisgettingworseandworse.Nowitdoesn’tworkat
导游语言包括( )。A.口头语言 B.态势语言 C.书面语言 D.副语言
个人不可循环授信额度指根据每次单笔贷款出账金额累计计算,即使单笔贷款提前还款,该
有四种食品:马铃薯、松子仁、奶油、牛奶,请根据食物成分表和成年男性(轻体力劳动者
根据《建设工程施工合同(示范文本)》(GF-99-0201),对于变动总价合同,
少数亚非国家实行一种社会保险制度,保险金额来自于企业和劳动者两个方面,国家不进行
共用题干 RescuePlatformIntheaftermathof
共用题干 李女士,40岁,教师,发热、咳痰1周,以肺炎入院,医生需根据痰培养标
无记名股票是指在股票票面和股份公司股东名册上均不记载股东姓名的股票。()
关于路基冬期施工的说法,正确的有( )。A.半填半挖地段.挖填方交界处不得在冬期
最新回复
(
0
)