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 (修剪, 整枝) when there is a good and clear reason for doing so and, fortunately, the number of such rea
Trees should only be pruned (修剪, 整枝) when there is a good and clear reason for doing so and, fortunately, the number of such rea
admin
2015-12-31
56
问题
Trees should only be pruned (修剪, 整枝) 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 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 wound on the tree 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.
What was the author’s purpose when writing this passage?
选项
A、To discuss different methods of pruning.
B、To explain how trees develop diseases.
C、To give a general description of pruning.
D、To give practical instructions for pruning a tree.
答案
D
解析
本题问作者写这篇文章的目的是什么。通读全文,了解文章大意之后,我们可以推断出作者写此文的目的是为了给人们提供给树木剪枝的指导。因此,本题的正确答案应是D。
转载请注明原文地址:https://kaotiyun.com/show/N2PO777K
0
在职攻硕英语联考
相关试题推荐
Theenginehasmorethan300______,madeofanumberofdifferentmaterials.
Man:Doyouwanttoturnontheair-conditioneroropenthewindows?Woman:Ilovefreshairifyoudon’tmind.Question:Whatc
Woman:Shouldn’tsomeonegopickuptheclothesfromthelaundry?Theywerereadythreehoursago.Man:Don’tlookatme,Mom.Q
Thefirmshouldmakeasubstantialprofitsatisfactorylaborrelationsaremaintained.
Man:Myfathercandocooking,carpentry,andabitofgardening.Woman:He’saJackofalltrades,really.Question:Whatdoes
Woman:Areyoupreparedfortheexamtomorrow?Man:Oh,yeah,theexamwillbeapieceofcake.Question:Whatdoesthemanmean
Americanshaveagreatloveforinformalityandnowhereisthisbetterexpressedthanintheirlovefornicknames(昵称、绰号).Upon
Retirementisobviouslyaverycomplex______period;andtheearlieryoustartplanningforit,,thebetter.
Woman:Whatdoyouthinkoftheidea?Man:Icouldn’tcomeupwithabetterone.Question:Whatdoesthemanmean?
Antsfirstcapturedtheattentionofsoftwareengineersintheearly1990s.Asingleantcannotdomuchonitsown,butagroup
随机试题
简述见索即付保证的概念和特点。
解决方案分析的步骤有
在单因素方差分析中,以下正确的一项是
男,20岁。3年前无明显诱因渐起孤僻少语,不愿参加集体活动,甚至与父母也很少交流,上课时注意力不集中,成绩下降。个人生活懒于料理。该患者最适宜做的检查是()
依据《建设工程质量管理条例》规定,在实行监理的工程,项目监理机构要对( )进行约束和协调,以使建设主体各尽其责。
借款人不能按期归还贷款时,应当在贷款到期日之前,向银行申请()。
根据我国监管当局要求,商业银行并表和未并表的杠杆率均不得低于()。
某夜,丁某埋伏在路边准备进行抢劫,后发现来人是本单位同事,遂收起匕首,与同事打完招呼后回家睡觉,丁某的行为是()。
Themostobviouspurposeofadvertisingistoinformtheconsumerofavailableproductsorservices.Thesecond【C1】______istos
Notalldecisionsarealike.Noriseverydecisionmadeinthesamemanner.Althoughsomeactionsyouundertakederivetheirbas
最新回复
(
0
)