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
2021-11-04
15
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.
A good gardener prunes a tree______.
选项
A、at intervals throughout the year
B、regularly every winter
C、only when necessary
D、once every year
答案
C
解析
文章开头Trees should only be prunedwhen there is a good and clear reason for doingso.文中用only表示强调,故选C。
转载请注明原文地址:https://kaotiyun.com/show/VNZC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Foryears,theTobaccoInstitutehastriedunsuccessfullytorefute(反驳)thechargebyhealthexpertsthatcigarettesmokingcan
TheUnitedStatesisacountrymadeupofmanydifferentraces.Usuallytheyaremixedtogetherandcan’tbetoldonefromanoth
Assuppliersofmostofthefoodweeatandofrawmaterialsformanyofindustrialprocesses,agricultureisclearlyanimporta
DuringtheChristmasshoppingrushinLondon,astorywasreportedofatramp(流浪者)who,apparentlythroughnofaultofhisown,
A.IenjoyP.E.atschoolB.IlikebasketballC.Whatkindofmoviesdoyoulike,thenD.Becauseit’sexcitingE.It’sanact
Thereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.NoschoolIhavetaughtinhaseveri
A.HoldthelineB.flightnumberC.askaquestionD.ToNewYorkE.MayIhaveyournameF.reconfirmmyseatG.pleasecheck
Myfatherseemedtobeinno______tolookatmyschoolreport.
It’saverypopularplay,anditwouldbewiseto______seatswellinadvance.
随机试题
案情:犯罪嫌疑人段某,1980年出生,甲市丁区人,自幼患有间歇性精神分裂症而辍学在社会上流浪,由于生活无着落便经常偷拿东西。2014年3月,段某窜至丁区一小区内行窃时被事主发现,遂用随身携带的刀子将事主刺成重伤夺路逃走。此案丁区检察院以抢劫罪起诉到丁区法院
电弧光中的红外线,它会使人的眼睛_____。
1996年3月,家住B市海河区的郑明明向陈发发居住所在的B市丹阳区人民法院起诉,要求返还借款1万元。丹阳区人民法院受理了此案。1996年4月,经政府正式批准,陈发发家所属的街道划归B市正义区。而在1996年5月,陈发发的居所又迁至B市夏浦区,并在该区落入户
(2009年)根据《中华人民共和国节约能源法》的规定,为了引导用能单位和个人使用先进的节能技术、节能产品,国务院管理节能工作的部门会同国务院有关部门()。
3G移动通信系统在不同环境下能提供的速度是:车速环境144kbit/s,步行环境()kbits/s,室内环境2Mbit/s。
6月5日,某客户在大连商品交易所开仓买进7月份大豆期货合约20手,成交价格为2220元/吨,当天平仓10手合约,成交价格为2230元/吨,当日结算价格为2215元/吨,交易保证金比例为5%,则该客户当天的平仓盈亏、持仓盈亏和当日交易保证金分别是( )元
企业管理的两重性是指自然属性和()。
空运货物一般包括:班机运输、包机运输、集中托运、______、代办送交业务与______等。
死锁现象并不是计算机系统独有的,例如,除()之外,下列三种案例都是死锁的体现。
Menlietowomen.Attheheartofmanymen’slies,however,isthemaleego.Menlietobuildthemselvesuportoconcealsometh
最新回复
(
0
)