首页
登录
职称英语
[originaltext] Sudden cold can be the biggest threat for plants, especially
[originaltext] Sudden cold can be the biggest threat for plants, especially
游客
2023-08-27
33
管理
问题
Sudden cold can be the biggest threat for plants, especially after a warm period. Plants have not had a chance to harden their defenses. (26)Those that are actively growing or flowering are at high risk. Most frost damage takes place at night. Ice crystals form on the leaf surface. They pull moisture from the leaves and keep plant tissues from getting water. (27)Cold weather is most likely to damage or kill plants that do not have enough moisture. So keep the garden watered. Moist soil absorbs more heat than loose, dry soil covered with something like vegetation.
University of Arizona extension experts say covering plants and small trees with cloth or paper can help prevent frost damage. A one-hundred watt light bulb designed for outdoor use can also provide warmth. Some people place Christmas lights on young trees for warmth. The bulbs should hang below the leaves to let the heat rise into the tree. In Florida. as temperatures fell to record lows, (28)the growers of orange trees sprayed water on their trees to help prevent freeze damage. It is explained that as the water freezes. it produces heat, and the ice forms a protective blanket around the tree. If you spray a tree, keep the water away from nearby power lines. Heavy ice can form and break them. You can also wrap a tree in palm tree frond leaves, cornstalks or fiberglass. Adding plastic film works well in rain and snow. But experts say plastic alone does not help much.
26. Q: What kind of plants are most susceptible to the effects of sudden cold?
27. Q: What is the main reason for the death of plants in cold weather?
28. Q: What do growers of orange trees do to prevent trees from freeze damage in Florida?
选项
A、The plants do not have proper temperature.
B、The plants do not have enough water.
C、The plants are not used to cold weather.
D、The plants do not have enough sunshine.
答案
B
解析
文中提到,寒冷的天气最有可能损害或毁掉缺乏水分的植物,故选B)项。
转载请注明原文地址:https://tihaiku.com/zcyy/2962877.html
相关试题推荐
[originaltext]Blamingcreditcardsforyoungadults’moneyabuseispopular
[originaltext]Thesedays,ifyou’reinbusiness,havemadeanameforyours
[originaltext]M:Ilikeyournewposter.Didyoubuyitinthesupermarket?W:
[originaltext]M:Ijustwantedtoseehowyouwere.How’smarriedlifetreating
[originaltext]M:Welcomeback.Well,didyouenjoyyourtrip?W:Itwasfascin
[originaltext]W:I’dliketogotoyourbarbecueonSunday.Butmygoodfriend
[originaltext]W:I’mFaithDonnelly.Thisweekonourprogram,wewilltalkabo
[originaltext]M:Thisweek,wewillansweraquestionfromafreshman,Erin.Er
[originaltext]W:Say,Dave,canyoufillinformetonightattherestaurant?I
[originaltext]M:Ihopethatyoucanunderstandmyreasonfordecidingtoleave
随机试题
Thegreatestrecentsocialchangeshavebeen【C1】______thelivesofwomen
Whyyoushouldn’ttrytob
实务中,通常不应将()作为课税主体。 Ⅰ.信托计划 Ⅱ.资管计划 Ⅲ.信
对已确认的药品不良反应采取相关的紧急措施的部门是A.国家食品药品监督管理局B.地
中型检修项目现场管理应做好()安全技术交底$:$检修作业管控$:$安全质
由于处于同一概括水平的经验之间的相互影响而发生的迁移称为()。A.顺向迁移
根据亨利·明茨伯格的管理理论,管理者的角色可归为( )。A.代领人 B.人际
作助悬剂使用A.羟苯酯类 B.丙二醇 C.西黄蓍胶 D.吐温80 E.酒
固定资产投资项目实行资本金制度,以工业产权,非专利技术作价出资的比例不得超过投资
80%的小儿动脉导管解剖上关闭的时间是A.生后1~2岁B.生后3~4个月C.生后
最新回复
(
0
)