Haveyoueverheardofaninsectcalledthecicada(蝉)?36 Butthey...
问题详情:
Have you ever heard of an insect called the cicada(蝉)? 36 But they have an interesting internal clock that tells them when to go aboveground.
Every 17 years, billions of the noisy Brood V cicadas(十七年蝉) will swarm(成群出现)to northeastern parts of the US, including New York, Ohio and pennsylvania. 37 But there are usually a lot less of them compared to the Brood V cicadas.
38 According to Discovery News, these insects started their lives in 1999. And as their 17-year life cycle comes to an end, they go aboveground when their underground homes get warmer 64 degrees Fahrenheit (about 18℃) to be exact.
Then the females will lay hundreds of eggs in trees, and after about four to six weeks, the mother and father cicadas will die. 39
While they can be kind of annoying, these insects don’t harm humans, but they do make a lot of noise during their time aboveground. 40
However, since there are so many of the 17-year cicadas, the amount of laid eggs can sometimes harm small trees and bushes. But after this summer, these insects will mostly mind their own business until 2033.
A. That sound is the male cicadas attracting the female cicadas.
B. The cicada insects are common in summer, especially in August and can be found in July as well.
C. There are other kinds of cicadas that come around once a year or every 13 years.
D. The baby cicadas will go underground, and the 17-year cycle will start over again.
E. As a matter of fact, people like to eat them in some cultures.
F. Well, a special kind of these insects live underground in the US for most of their lives.
G. This is what makes Brood V cicadas so special.
【回答】
FCGDA
知识点:七选五题型
题型:未分类
-
下列加点词注音全对的一项是( )A.浣女(huàn) 谄媚(xiàn) 邂逅(xiè)B.惘然(wǎn...
问题详情:下列加点词注音全对的一项是( )A.浣女(huàn) 谄媚(xiàn) 邂逅(xiè)B.惘然(wǎnɡ) 纶巾(ɡuān) 铜钿(tián)C.湓浦(pǔ) 贾人(ɡǔ) 嘲哳(zāo)D.迸发(bènɡ) 谪居(zhé) 锦瑟(sì)【回答】【*】B【解析】试题分析:A.Chǎn,C.zhāo,D.s...
-
对于锌一铜一稀硫*组成的原电池装置中,当导线中有1mol电子通过时,理论上的两极变化是( )。 ①锌片...
问题详情:对于锌一铜一稀硫*组成的原电池装置中,当导线中有1mol电子通过时,理论上的两极变化是( )。 ①锌片溶解了32.5g②锌片增重32.5g③铜片上析出lgH2 ④铜片上析出1molH2 A.①和③ B.①和④ C.②和③ D.②和④【回答】A知识...
-
已知铁的一种氧化物,其中含氧元素的质量分数为30%,则这种铁的氧化物的化学式为 ( ) A.FeO ...
问题详情:已知铁的一种氧化物,其中含氧元素的质量分数为30%,则这种铁的氧化物的化学式为()A.FeO B.Fe2O3C.Fe3O4 D.无法判断【回答】B知识点:金属的化学*质题型:选择题...
-
某有机物结构简式为,下列关于该有机物的说法中不正确的是( )A.遇FeCl3溶液显紫*B.与足量的*氧化*溶...
问题详情:某有机物结构简式为,下列关于该有机物的说法中不正确的是()A.遇FeCl3溶液显紫*B.与足量的*氧化*溶液在一定条件下反应,最多消耗NaOH3molC.能发生缩聚反应和加聚反应D.1mol该有机物与溴发生加成反应,最多消耗1molBr2【回答】解析A项,有机物分子中存在*羟基,所以...
相关文章
- Evenatschooltherehadbeenanunhealthycompetition(竞争)betw...
- 短文改错DearJeremyandAlice,Althoughwe'vebeendelightedtohave...
- 七选五阅读There'splentyofadviceoutthereaboutwhattodotogettos...
- 一Haveyougottheticketsfortheconcert? 一Notyet,Ididn'treal...
- Thefirespreadthroughthehotelveryquicklybuteveryone
- Xi'ancelebratedthefirst﹣everChinaHanfuDayonApril18.Ther...
- WhenyouareinEngland, youmustbeverycarefulinthestreet61
- 语法填空Acouplehadbeenmarriedforover60years.Theysharedevery...
- Iwasinvitedtoattendafunction(盛大的*)tocelebratethe25thye...
- 【2019•湖北省宜昌市】Herearethematerialsyouneedtohaveasuccessfu...