首页
登录
职称英语
[originaltext] (17)Some trees can survive a long time without water. Think
[originaltext] (17)Some trees can survive a long time without water. Think
游客
2024-08-01
17
管理
问题
(17)Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than they can get from rainfall or from the air. The soil stores moisture during cooler weather. But most of that moisture is gone by the middle or end of the hottest months of the year.(18)Trees and other plants can look thirsty. Leaves hang downward and turn brown or yellow. Here are some suggestions for watering newly planted trees and established trees. With a newly planted tree, the roots have not yet spread out from the root ball. The root ball can become dry faster than the dirt around it. So put water on the area of the football and the surrounding soil until the roots become established.(19)Once a tree is well established, water deeply instead of often. During the hottest season, a deep watering may satisfy a tree for anywhere from ten days to two weeks.(20)One of the effective watering skills is to stop when the soil needs a little time to absorb the water. Otherwise the water runs off the surface and gets wasted.
17. What can we learn about trees in the desert?
18. What’s the symptom when trees look thirsty?
19. How should we water a tree after it has grown up?
20. Why should we stop watering when the soil absorbs the water?
选项
A、They only get moisture from rainfall.
B、They need more moisture than trees elsewhere.
C、They can live a long life without water.
D、They do not need water to ensure their growth.
答案
C
解析
短文开篇便提到,一些树木在没有水的情况下也可以生存很长时间,在沙漠中生长的树木就是这样。
转载请注明原文地址:https://tihaiku.com/zcyy/3701299.html
相关试题推荐
Whatdoesthenewsitemsayabouttheundergroundtrainaccident?[originaltext]
WheredidAlbertoContadorhavethetestforthebannedsubstance?[originaltext
Howlonghastheviolencelasted?[originaltext]Apolicespokesmansaidexplosiv
WhatwasthepurposeofJoe’sskateboardjourney?[br][originaltext]W:Welcome,
WhatwasthepurposeofJoe’sskateboardjourney?[br][originaltext]W:Welcome,
WhatwasthepurposeofJoe’sskateboardjourney?[originaltext]W:Welcome,JoeD
ChrisissurprisedthatHollyhasleftthecafe.[br][originaltext]M:Hello,Ho
ChrisissurprisedthatHollyhasleftthecafe.[br][originaltext]M:Hello,Ho
ChrisissurprisedthatHollyhasleftthecafe.[originaltext]M:Hello,Holly.Yo
Whataddedtothedifficultyintheputtingoutofthebushfire?[originaltext]
随机试题
Somepeoplearguethatself-plagiarism(自我剽窃)isimpossiblebydefinitionbec
Duringtheeconomiccrisis,theyhadtocutbackproductionand______workers.A、l
某火电厂总共占地面积80万平方米,其中围墙内占地40万平方米,围墙外向社会开放的
当颈动脉窦压力感受器的传入冲动增多时,可引起()。A.心交感紧张加强 B.
全口义齿下颌尖牙的排列哪一项是错误的A.与上颌牙形成浅的覆、覆盖关系 B.牙冠
中国共产党第十九次全国代表大会召开的时间是()。A.2012年 B.2016年
脑膜炎球菌属奈瑟菌属。A.志贺菌属 B.奈瑟菌属 C.沙门菌属 D.
在确定投资是否是固定资产投资时,首先要清楚界定固定资产的标准,是否属于固定资产,
猪苓汤中配用阿胶的目的是( )。A.育阴清热 B.滋阴润燥 C.凉血止血
风湿性心脏瓣膜病患者发热两周,疑有感染性心内膜炎,下列哪项体征对诊断最有帮助A.
最新回复
(
0
)