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
4
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
某上市公司目前总资产10000万元,其中股东权益4000万元,普通股股数3500
讲解《锦瑟》时,教师列举含有典故的诗句,向学生解释古代诗词创作的用典传统。下列诗
下列方剂组成药物不含五味子的是A.生脉散B.四神丸C.都气丸D.酸枣仁汤E.小青
Thecontractbetweenthetwocompaniesw
下列关于静脉肾盂造影前准备,哪项是正确的A:造影前做肠道准备 B:禁水4~6小
新生儿,男,3日龄。体重3200g,皮肤巩膜发黄,血清总胆红素280μmol/L
在实际的房地产估价中,房地产抵押价值通常是指抵押房地产未设立法定优先受偿权下的价
心理发展相互作用论的代表人物是()A.皮亚杰 B.普莱尔 C.吴伟士 D
货运站的主要功能包括( )。A.综合物流服务功能 B.联运和中介代理功能 C
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)