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
外语
We all scream for water【C1】______thirsty. But do you know in very hot, dry weather, plants also make faint sounds —【C2】______the
We all scream for water【C1】______thirsty. But do you know in very hot, dry weather, plants also make faint sounds —【C2】______the
admin
2010-12-02
42
问题
We all scream for water【C1】______thirsty. But do you know in very hot, dry weather, plants also make faint sounds —【C2】______they are crying out for help?
You see, in a plant’s stem, there are hundreds of water pipes that bring water and minerals from the soil【C3】______up to the leaves.【C4】______the ground turns dry, it becomes harder and harder for the plants to do this. In【C5】______droughts, plants have to fight to【C6】______any water available. Scientist Robert Winter has found out that when it is really bad, their water pipes【C7】______from the【C8】______like rubber bands. When that happens, the whole plant vibrates a little. The snapping pipes make noises【C9】______than a whisper. Robert knows that healthy, 【C10】______plants are quiet. He also knows that many insects prefer attacking【C11】______plants【C12】______healthy plants.
How do the insects know which are healthy plants and which are not? Robert thinks that the insects may listen for the plants that cry. And then they【C13】______buzz in to kill. To【C14】______his theory, Robert is using a【C15】______that can【C16】______plant cries. He attaches it【C17】______a quiet, healthy plant so the plant sounds thirsty. Then he watches the insects to see if they attack more often than usual. If he is right, scientists could use the insects’ ability【C18】______them. They could build traps that imitate crying plants,【C19】______when the insects buzz in to eat, they won’t buzz【C20】______
【C11】
选项
A、fresh
B、dry
C、damp
D、dead
答案
B
解析
语义衔接题。dry plants与后面的healthy plants对应。
转载请注明原文地址:https://kaotiyun.com/show/xf1K777K
0
专业英语四级
相关试题推荐
3.______wehaveachievedisattributedtotheguidanceofourparents.
______we’llgocampingtomorrowdependsontheweather.
Allflights______becauseofthesnowstorm,manypassengerscoulddonothingbuttakethetrain.
Theproblemis______wecanmastermodernscienceandtechnologyinashorttime.
Thequestionis______itisworthvisiting.
Hedidnothingbut______lettershomeallthisafternoon.
Ourmanager______araiseinsalaryforages,butnothinghashappenedyet.
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesan
______moresunlight,thesevegetableplantsgrowmuchbetterthisyear.
NightFloweringPlantsEveningPrimroseThesesoft-scentedflowershavefoursatinyheart-shapedpetalsthatcometogetherformi
随机试题
A、头低足高位,头偏向一侧B、去枕平卧位C、平卧位,头偏向一侧D、端坐位E、患侧卧位支气管哮喘发作患者取
关于上肢摄影的描述,下列哪一项不妥
常用于血细胞分析仪检测的抗凝剂是
A、肺动脉瓣区第二心音减弱B、肺动脉瓣区第二心音亢进及固定分裂C、肺动脉瓣区第二心音逆分裂D、三尖瓣区相对性舒张期杂音E、左向右分流量大时,可因相对性二尖瓣狭窄于心尖区闻及较短的舒张期隆隆样杂音房间隔缺损
下列风险中属于管理风险的是()。
某城市立交桥工程项目,某施工单位通过投标获得了该工程的施工任务,该施工单位在对沉人桩施工时,采用的是锤击沉桩,具体的施工要点是:(1)沉桩前应对施工主要部件进行检查。(2)锤击时的动能应坚持由大到小的原则,逐渐减小冲击动能,直到桩符合设计要
当受到害虫侵袭时,大豆和其他植物会产生一种叫做茉莉酸盐的荷尔蒙,从而启动一系列化学反应。合成更多蛋白酶抑制剂,增强自身的抵抗力。害虫吃下这种化合物以后,其消化功能会受到抑制。植物生物学家德鲁西亚发现高浓度二氧化碳会导致植物丧失分泌茉莉酸盐的能力,整个“防御
Therequirementsforhighschoolgraduationhavejustchangedinmycommunity.Asaresult,allstudentsmust【C1】______sixtyhou
古代动物中有一类动物叫蜥螈,它______具有两栖动物的特征,______具有爬行动物的特征。______古生物学工作者不容易弄清楚它到底是两栖还是爬行动物,______过去把它放在爬行动物中,______现在又把它放在两栖动物中去。依次填入画横线
有如下程序:#include<iostream>usingnamespacestd;classA{public:staticinta;voidinit(){a=1;}A(inta=2){init();a++;}};intA
最新回复
(
0
)