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
职业资格
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
2015-06-17
44
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 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 hurts 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.
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
由第一段第一句“Trees should only be pruned when there is a good and clear reason for doingso”可知,必需时才会修剪树木,故选C。
转载请注明原文地址:https://jikaoti.com/ti/kRG9FFFM
本试题收录于:
英语学科知识与教学能力题库教师资格分类
0
英语学科知识与教学能力
教师资格
相关试题推荐
根据材料设计教学片段。春秋战国时期,中国社会发生了重大变革。原来社会地位较低的士,在社会生活中活跃起来,受到各诸侯国统治者的重用。他们代表本阶层或政治派别的利益和要求,提出自己的主张。政治和经济大变动,导致教育和学术领域也发生变化,贵族
1950年签订的《中苏友好同盟互助条约》规定:“一旦缔约国任何一方受到日本或与日本同盟的国家之侵袭因而处于战争状态时,缔约另一方即尽其全力给予军事及其他援助。”1989年中苏关系正常化后,两国未再签订类似条约。这主要是因为()。
Ifateachergetsanincorrectanswerfromstudents,it’smostappropriateforhimorhertosay"______"inordertoencourage
Teachersbelievinginthe______modelinageneralsenseusuallyfollowthesequenceofteachingnewwords,sentencesandthent
WhichofthefollowingmaterialsisNOTappropriateforateachertouseinlisteningpractice?
Theteacherwoulduse______tohelpstudentscommunicateinteachingspeaking.
Englishcourseobjectivesatthestageofbasiceducationincludefiveaspects,thatis,students’languageskills,languagekno
Whichofthefollowingactivitiesismostlikelyinteractive?
Backintheolddays,whenIwasachild,wesataroundthefamilyroundtableatdinnertimeandexchangedourdailyexperience
Whatshouldyouthinkaboutintryingtofindyourcareer?Youareprobablybetteratsomeschoolsubjectsthanothers.Thesema
随机试题
桑丘.潘沙的形象。
我国出口结汇的办法有()
反复使用无明显副作用的吸入性麻醉药为
背景材料:某公路工程所需的主要建材有路基土方填料、砂石材料、水泥、沥青材料、沥青混合料和钢材等。所有材料均由项目部自己采购和组织运输。项目部材料采购部门拟按工程量清单→材料供应计划→材料用量计划→材料用款计划→材料采购计划的顺序进行材料计划管理,并对几种
根据施工现场固体废物的减量化和回收再利用的要求,施工单位应采取的有效措施包括()。
经济效果分析采用以()为基础的预测价格,有要求时可考虑价格变动因素。
稚拙:老练
Theyignoredhim,despitehisrepeated______thathewasnotonthesceneofmurderthatevening.
Despiteitsattractiveness,investingabroadcanstillposebigrisks,rangingfromthepotentialforpoliticalinstabilityins
FreedbySudan,"Geographic"ReporterArrivesHomeinU.S.After34daysinaSudanesejail,NationalGeographicjournalist
最新回复
(
0
)