首页
登录
职称英语
Every living thing has what scientists call a biological clock that controls
Every living thing has what scientists call a biological clock that controls
游客
2023-08-31
38
管理
问题
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to【C1】______flowers and insects when to leave the protective cocoon (茧) and fly away. And it tells animals and human beings when to【C2】______. sleep and seek food. It controls our body temperatures, the【C3】______of some hormones and even dreams.
Events【C4】______the plant and animal affect its actions. Scientists recently found that a tiny animal called Siberain hamster changes the color of its【C5】______because of the number of hours of【C6】______. In shorter days of winter its fur becomes white. The fur becomes gray-brown in longer【C7】______of daylight summer.
【C8】______signals control other biological clocks. German scientists found that some internal one seems to order birds to begin their【C9】______flights two times each year. Birds prevented from flying become【C10】______when it is time for the trip.【C11】______they become calm again when the time of the flight has ended. A mix of outside and internal events controls some biological clocks; such things as heartbeat and the daily change from sleep to walking take place because of both external and internal signals.
Scientists are beginning to learn【C12】______parts of the brain contain biological clocks. A researcher at Harvard University, Dr. Martin Moore Ede, said a small group of cells near the front of the brain seemed to control the【C13】______of some of our actions. Probably there are other cells to control other body activities. He is studying【C14】______they affect the way we do our work. Most of us have great difficulty if we【C15】______often change to different work hours. It can【C16】______many days for a human body to【C17】______the major change in work hours. Industrial officials should have a better【C18】______of biological clocks and how they affect workers. He said such an understanding could【C19】______sickness and accidents at work, and would help increase【C20】______. [br] 【C1】
选项
A、form
B、boom
C、bloom
D、blossom
答案
A
解析
语义衔接题。本句中的It指代的是上句中的提到的biological clock,也就是说,生物钟可以影响开花的时间,而能和flowers构成短语“开花”的词是form,故答案为[A]。[B]boom指发出隆隆声;[C]bloom意为“开花”,它已经包含了flowers的意义,后不接flowers;[D]blossom指的是花开的形状,其习惯搭配为come into blossom“开花”。
转载请注明原文地址:https://tihaiku.com/zcyy/2972340.html
相关试题推荐
Foryearsthemedia,foodlabels,dietitians,andevenscientistswhoshould
Foryearsthemedia,foodlabels,dietitians,andevenscientistswhoshould
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themaking
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themaking
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themaking
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themaking
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
随机试题
Themanager,aswellashisadvisers,_____toattendtheworldfair.A、areagree
线性方程组对任意常数b1,b2,…,bn都有解的充要条件是r(A)=( )。(
CT扫描机特殊功能软件,不包括A.三维图像重建 B.平滑滤过 C.图像重建
股票之所以有价值,是因为它能给持有者带来未来的收益,这种未来的收益包括()。A
目前主要采用()筛析试验方法检测水泥的细度。A.手筛 B.水筛 C.干筛
两岁男孩,生后母乳加牛乳喂养,以后改为米粉加稀饭喂养,查体:体重8kg,皮肤未见
中央银行在市场中向商业银行大量卖出证券,从而减少商业银行超额存款准备金,引起货币
承包商赵某施工的楼盘的下水道与城市主管道对接,施工中开挖的管道沟未设置保护措施和
某城市白天平均等效声级为60dB(A),夜间平均等效声级为50dB(A),该城市
结核性脑膜炎典型的脑脊液改变是A.压力增高 B.外观呈毛玻璃样 C.白细胞增
最新回复
(
0
)