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
72
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.
Why should pruning be done?
选项
A、Because it can make trees grow taller.
B、Because it can improve the shape of the trees.
C、Because it can get rid of the small ranches.
D、Because it can make the small branches thicker.
答案
B
解析
第二段中提到了剪枝的两点原因:第一就是让树的外形和大小合适,第二就是让树更健康。所以只有B符合。
转载请注明原文地址:https://kaotiyun.com/show/sIgc777K
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
Atacertaintimeinourlivesweconsidereveryplaceasthepossiblesite(地点)forahouse.Ihavethussearchedthecountrywith
Atacertaintimeinourlivesweconsidereveryplaceasthepossiblesite(地点)forahouse.Ihavethussearchedthecountrywith
Atacertaintimeinourlivesweconsidereveryplaceasthepossiblesite(地点)forahouse.Ihavethussearchedthecountrywith
“InonlysixdaysIlostsevenpoundsofweight.”“TwofullincheSinthefirstthreedays!”Thesearethekindsofstat
TheAmericannewspaperhasbeenaroundforaboutthreehundredyears.In1721,theprinterJamesFranklin,Benjamin’Solderbrother,
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemicalchangesoccurinthebrainthatallowittoactm
James’SNewBicycleJamesshookhismoneyboxagain.Nothing!Hecarefully【B1】__________thecoinsthatlayonthebed,$24.52was
Itisreasonableforpeopletopursueacareerinfieldsrelate______theirfavoritehobbies.
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
Michael__________beapoliceman,forheismuchtooshort.
随机试题
()是指为了完成特定目标而设置的人的职务及其关系的结构。
A.5岁以下小儿上肢被突然牵拉后肘部痛B.肘后空虚感C.爪形手畸形D.Hippocrates法复位肩关节脱位的临床特征是
一重症肌无力患者因肺部感染应用卡那霉素治疗,3d后发生危象,此时首先
A.儿童期B.青春期C.性成熟期D.绝经过渡期E.老年期青年女性属于
全面质量管理是一项
望面色时,应首先分辨
(2012)不宜采用凸轮机构的工作场合是()。
保存水样方法有()。
下列与存货相关会计处理的表述中,正确的有()。
Thisisanicecar,butwecannot______it.
最新回复
(
0
)