英语听力：自然百科 大迁徙 Great Migrations—9
时间：2019-01-22 作者：英语课 分类：自然百科2010年
英语课
Females travel in family groups, sometimes leading their young on yearly wanderings of up to 20,000 miles. Each day, they gather to reaffirm their bonds. They seem to crave 1 physical contact.
Finally, the mothers disperse 2 to feed in shifts. They leave their calves 3 for up to 40 minutes of every hour. They may dive up to 2 miles for a daily catch of 300 pounds of octopus 4 and squid. This calf 5, too young to dive, tracks his mother closely from above, listening intently for her signature clicks.
Chunks 6 of octopus rise to the surface from the matriarchs hunting below like bread crumbs 7 leading back to safety.
From the depths, mother finally returns. All of this young life, the calf has been on the move. Now his mother and aunts seem to be waiting for something big. Unknown to the calf, he’s about to be welcomed into a world of giants, a world rarely seen and little understood.
Migrations 8 are "journeys of attrition. Darwinian in the extreme".
vt.渴望得到，迫切需要，恳求，请求
- Many young children crave attention.许多小孩子渴望得到关心。
- You may be craving for some fresh air.你可能很想呼吸呼吸新鲜空气。
vi.使分散；使消失；vt.分散；驱散
- The cattle were swinging their tails to disperse the flies.那些牛甩动着尾巴驱赶苍蝇。
- The children disperse for the holidays.孩子们放假了。
n.(calf的复数)笨拙的男子，腓；腿肚子( calf的名词复数 )；牛犊；腓；小腿肚v.生小牛( calve的第三人称单数 )；（冰川）崩解；生（小牛等），产（犊）；使（冰川）崩解
- a cow suckling her calves 给小牛吃奶的母牛
- The calves are grazed intensively during their first season. 小牛在生长的第一季里集中喂养。 来自《简明英汉词典》
n.章鱼
- He experienced nausea after eating octopus.吃了章鱼后他感到恶心。
- One octopus has eight tentacles.一条章鱼有八根触角。
n.小牛，犊，幼仔，小牛皮
- The cow slinked its calf.那头母牛早产了一头小牛犊。
- The calf blared for its mother.牛犊哞哞地高声叫喊找妈妈。
厚厚的一块( chunk的名词复数 )； （某物）相当大的数量或部分
- a tin of pineapple chunks 一罐菠萝块
- Those chunks of meat are rather large—could you chop them up a bIt'smaller? 这些肉块相当大，还能再切小一点吗？