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
22
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】______
【C13】
选项
A、may
B、dare
C、should
D、must
答案
A
解析
语义衔接题。根据原文可知,由于罗伯特的想法只是猜测,所以“昆虫可能会听到呼叫的植物,之后它们就可能嗡嗡叫着去破坏植物”,may表示猜测,可能性。
转载请注明原文地址:https://kaotiyun.com/show/Jf1K777K
0
专业英语四级
相关试题推荐
HowwillUNICEFhelptheAfricanchildren?
______mancannowcreateradioactiveelements,thereisnothinghecandotoreducetheirradioactivity.
I’dratherthatthey______duringthebadweather,buttheyinsistthattheymustreturnhometoday.
______madeherparentsverydisappointed.
Ifwehangtogether,wecanovercomeanyobstacle,______greatitis.
Theproblemis______wecanmastermodernscienceandtechnologyinashorttime.
Ourmanager______araiseinsalaryforages,butnothinghashappenedyet.
From:JeffPagesSubject:BarefeetintherainDate:29Jan0217:38:02ESTIthasbeenrainingconstantlyinSydneyforthela
Afterhavinggone______faralongthewaytohisacademicpursuit,Gorgedidnotwanttogiveupfruitlessly.
Nothing,______amiracle,cansavehim.
随机试题
下列选项中,由原发性肺结核引起的是
颅内动脉瘤最常见的部位是()。
下列古代名言中,是对会计职业道德中诚实守信这一重要内容的表述的有()。
甲公司是我国一家历史悠久的老字号餐饮企业。下列各项中,属于甲公司战略分析时需要关注的企业资源有()。
TheEnglishCornerinZhongshanParkiswherepeople【M1】______gotopractisetheirspeakingEnglish.EverySundayafternoon【M2】
根据上图,下列说法正确的是()。
下列罪犯中不能一律认定为首要分子的是()。
假如接到国家人力资源和社会保障部办公厅的通知,一个月后人保部将派考察组前来省里调查民营企业的人才状况。如果省人力资源和社会保障厅领导要你承办这件事,你将如何做好这一工作?
“生命中曾经有过的所有灿烂,终究都需要用寂寞来偿还。”这句话出自()。
数据流图用于抽象描述一个软件的逻辑模型,数据流图由一些特定的图符构成。下面图符名标识的图符不属于数据流图合法图符的是
最新回复
(
0
)