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(修剪) when there is a good and clear reason for doing so and, fortunately, the number of such reasons
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
admin
2017-03-21
24
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 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 that risk as far as possible. It is important to make that 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 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.
According to the passage, after pruning,______.
选项
A、pruned trees may get infected easily
B、the open wound will heal at once.
C、the disease often wins the race
D、the cut surface should be left unpainted
答案
A
解析
细节理解题。根据第三段前两句可知树枝被修剪后很容易受到感染,故选A项。
转载请注明原文地址:https://kaotiyun.com/show/KPXC777K
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
Someoldpeopledon’tlikepopsongsbecausetheycan’t______somuchnoise.
Sixteenyearsago,EileenDoyle’shusband,anengineer,tookhisfourchildrenupforanearlymorningcupoftea,packedasmal
Johnsuggested______anythingaboutituntiltheyfoundoutmorefacts.
It’ssaidthattheagreement______betweenthetwocompanieslastmonthwillbecomeeffectivefromMay1st.
Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtowriteanoteaskingforsickleavebasedonthef
______,thedriverwentaheadtowardshischosendestination.
Wereitnotforthetelevision,we______theeventsthatarehappeninginotherplaces.
Canmachinesperformthesametasks()?
I’vebeenwritingformostofmylife.ThebookWritingWithoutTeachersintroducedmetoonedistinctionandonepracticethat
Itwassuchahotdaythateveryone______swimmingintheriver.
随机试题
建设项目中防治污染的设施,必须与主体工程同时()。
下列关于肝素的正确说法是
A.平分颅面部为左右两等分的一条假想线B.通过牙体中心的一条假想轴C.牙与牙在邻面互相接触的部位D.三面相交处成一点所成的角E.牙体各轴面最突出的部分
石菖蒲、远志的共同作用是
丹毒发于躯干者命名为()
甲电视台获得了某歌星演唱会的现场直播权,乙电视台未经许可对甲电视台直播的演唱会实况进行转播,丙广播电台经过许可将现场演唱制作成C、D,丁音像店从正规渠道购买到C、D用于出租,戊未经许可将丙广播电台播放的演唱会录音录下后上传到网站上传播。下列哪些选项是正确的
外国组织未经批准,擅自在中华人民共和国领域从事测绘活动,责令停止违法行为,没收测绘成果和测绘工具,并处()罚款。
根据《2000年国际贸易术语解释通则》,下列贸易术语中仅适用于水运运输方式的是:()。
下列人员中,不得担任公司的董事、监事、高级管理人员的有()。
以下程序运行后,输出结果为______。main(){inta[2][3]={1,3,5,7,9,11),*s[2],**pp,*p;s[0]=a[0],s[1]=a[1];pp=s;p=(int*
最新回复
(
0
)