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
专升本
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
2021-11-11
5
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.
Firstly, 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 branches that are blocking up the center 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 clear, 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.
Trees will become unhealthy when________.
选项
A、too many branches grow in the middle
B、branches in the middle are cut away
C、small side branches become thick
D、overgrown branches are removed
答案
A
解析
第二段结尾The health of a tree may be encouraged by removing branches that are blocking up the center and 80 preventing the free movement of air.文中的center与选项中in the middle同义替换。
转载请注明原文地址:https://kaotiyun.com/show/ftRC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Ispentlastsummervolunteeringatahospital.Itwasagiftto【C1】______somanyamazingpeopleandI’dliketoshareoneofth
Inaworldasfast-changingandfullofinformationasourown,allofusneedtoknowhowtolearnwell.Yetevidencesuggests
Ifsomeonesaysyouaresmart,whatdotheymean?Isitagoodthingorsomethingbad?Theanswerisnotaseasyasyoumightth
Tobeagoodmanager,youmustbecarefultodistinctlydefinetheproperboundarybetweenyourselfandyourstaff.Herearesom
Whenyougotouniversitytostudyforadegree,youhavedecidedtostudyprofessionally,ratherthanasanamateur:sobeinga
Inthisageofequality,samenessbetweenthesexesisemphasizedasifdifferenceshavetomeanproblems.Well,differencescan
Howoftenonehearschildrenwishingtheyweregrown-up,andoldpeoplewishingtheywereyoungagain.Eachagehasitspleasure
WhenIwasstudyingEnglishatatrainingcenterinWashingtonD.C.in1998,IsharedahousewithtwoyoungAmericans,Jimand
Ifwetakeacloselookatsuccessfullanguagelearners,wemaydiscoverafewtechniqueswhichmakelanguagelearningeasierfo
Anyinformationwithwhichyoumayfavoruswillbemuchappreciatedandweearnestlyawaityourreply.
随机试题
有“入血就恐耗血动血,直须凉血散血”之意的是
具有祛瘀定痛,活血止血功用的方剂是具有破血下瘀,荡涤邪热功用的方剂是
提高政府投资效益的途径有()。
下列关于设备及工器具购置费的描述中,正确的是()。
企业发生的下列交易或事项产生的汇兑差额应计入当期损益的有()。
按照矩阵管理法,项目的参与者包括()。
某公安派出所对张某作出罚款200元的行政处罚决定,张某不服。张某向县人民政府和县公安局同时申请行政复议。但两机关超过复议期限后均未作出任何决定。张某遂决定向法院提起行政诉讼,要求撤销派出所的处罚决定。本案的适格被告应当是谁?()
Expressionismisanartisticstyleinwhichtheartistseekstodepictnotobjectiverealitybutratherthesubjectiveemotions
Manyinstructorsbelievethataninformal,relaxedclassroomenvironmentis【1】tolearningandinnovation.Itisnotuncommon
下列关于最小变动价位,正确的说法有()。
最新回复
(
0
)