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
2023-10-10
66
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/3086681.html
相关试题推荐
Whatisthemaintopicbetweenthemanandthewoman?[br][originaltext]M:Mar
Whatisthemaintopicbetweenthemanandthewoman?[br][originaltext]M:Mar
Whatisthemaintopicbetweenthemanandthewoman?[br][originaltext]M:Mar
Wherearealotoffaxmessagessentto?[br][originaltext]W:Well,Charles,I
Wherearealotoffaxmessagessentto?[br][originaltext]W:Well,Charles,I
Wherearealotoffaxmessagessentto?[br][originaltext]W:Well,Charles,I
Wherearealotoffaxmessagessentto?[originaltext]W:Well,Charles,Imust
Whatistheman’sfeelingabouttheinterview?[br][originaltext]W:Howdidyo
Whatcanwelearnfromthenews?[br][originaltext]Tokyo--Japan’sInternat
Whatcanwelearnfromthenews?[br][originaltext]Tokyo--Japan’sInternat
随机试题
Themandoesn’twanttogotouniversitybecause______.[originaltext]W:Areyou
Inmanypartsoftheworldthereisadebateaboutwhetherchildrenshouldu
Whenit’sfiveo’clock,peopleleavetheiroffice.Thelengthoftheworkday
丰田生产方式中,对生产过程中各工序生产活动进行控制的信息系统是( )。A.标准
管网处于自动喷水灭火状态时,压力开关将压力信号转换成电信号启动消防水泵和辅助灭火
下列关于两波形梁板的分类正确的是()。A.按截面形状分为等截面和变截面护栏 B
金华菜以火腿为原料的各种菜肴多达二三百种,是金华菜的最大特色。()
某公司2013年度销售收入净额为3000万元,年初应收账款余额为150万元,年末
可恢复胆碱酯酶活性的是A.毛果芸香碱B.阿托品C.新斯的明D.碘解磷定E.有机磷
企业计提短期借款利息时贷方记入的科目为()。A、财务费用 B、应收利息 C、
最新回复
(
0
)