在线英语听力室

【英语时差8,16】鱼会变性?(上)

时间:2015-12-02 05:21:55

搜索关注在线英语听力室公众号:tingroom,领取免费英语资料大礼包。

(单词翻译)

 A human is born one sex or the other depending on the chromosomes1 inherited from the parents. Even a surgical2 sex change, can’t enable a man to produce eggs or a woman to produce sperm3. But several kinds of fish not only can change sex, but do so as part of their normal reproductive cycles… In most sex-changing fish, nearly all the young are born female and as they grow up, some become male. In others, the change goes from male to female. Either way it goes, the sex change works with the lifestyle of that particular fish to produce the largest number of offspring. Fish that change from female to male–including parrot fish, sea bass4, and groupers–usually live in groups of one male and several females.


分享到:


点击收听单词发音收听单词发音  

1 chromosomes 11783d79c0016b60332bbf1856b3f77d     
n.染色体( chromosome的名词复数 )
参考例句:
  • Chromosomes also determine the sex of animals. 染色体也决定动物的性别。 来自《简明英汉词典》
  • Each of four chromosomes divide longitudinally. 四种染色体的每一种都沿着纵向分裂。 来自《现代汉英综合大词典》
2 surgical 0hXzV3     
adj.外科的,外科医生的,手术上的
参考例句:
  • He performs the surgical operations at the Red Cross Hospital.他在红十字会医院做外科手术。
  • All surgical instruments must be sterilised before use.所有的外科手术器械在使用之前,必须消毒。
3 sperm jFOzO     
n.精子,精液
参考例句:
  • Only one sperm fertilises an egg.只有一个精子使卵子受精。
  • In human reproduction,one female egg is usually fertilized by one sperm.在人体生殖过程中,一个精子使一个卵子受精。
4 bass APUyY     
n.男低音(歌手);低音乐器;低音大提琴
参考例句:
  • He answered my question in a surprisingly deep bass.他用一种低得出奇的声音回答我的问题。
  • The bass was to give a concert in the park.那位男低音歌唱家将在公园中举行音乐会。

本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎 点击提交 分享给大家。