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07 9




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████    重点词汇
████    难点词汇
████    生僻词
████    词组 & 惯用语

[学习本文需要基础词汇量：4,000 ]
[本次分析采用基础词汇量：5,000 ]

that gives the flamingos
both their food

and a perfect habitat in which to breed

The breeding of many animals in the ocean

is closely co-ordinated
with the tidal cycles

A half moon in November.
lt is the time for small tides.

Christmas lsland in the Pacific

Strange happenings are afoot

lt is one of only a few nights each year

when female Christmas lsland crabs
risk heading down towards the sea

Around the island they number
in tens of thousands

and all of them are laden
with hundreds of eggs

They have to shed them into the ocean
if the eggs are to develop into baby crabs

But these are land crabs and they can
neither swim nor breathe underwater

There is a great risk of drowning,

which is why they pick the
smallest tides of the month

- to minimise the danger

The eggs will develop far
offshore and in exactly

one month's time a great swarm
of baby crabs will return,

again choosing the perfect tide

Whether it's the daily or monthly cycle,

tides are the rhythm of the ocean
- its pulsing clock

For every tide brings opportunity
to marine life somewhere in the world

Now a spring tide is flooding the
shallows and hunters are on the prowl

A small group of bottlenose dolphin
are working their way

inshore to start a quite
extraordinary hunting campaign

After one successful pass the dolphin
move off to start again

One animal peels off from the group
and swims rapidly in a circle,

stirring up the mud and driving
the mullet towards the other waiting dolphins

lt's a remarkable team effort
and it is extremely effective

The dolphin will feed like this
for as long as the tide grants

them access to the shallows

Eventually the falling tide will
force the dolphin to leave the flats

and the mullet will be safe once more
- until the next high tide

Because in the ocean every
turn of the tide spells

the difference between
life and death, somewhere


知识点

重点词汇
crabs [kræbz] n. 蟹类；吊钳；脾气坏的人（crab的复数） v. 捕蟹；抱怨；侧航（crab的三单形式） { :5100}

minimise ['mɪnɪmaɪz] vt. 使缩到最小；成极小；求最小值 { :5827}

happenings ['hæpənɪŋz] n. （偶然发生的）事情; 事情，事件( happening的名词复数 ); 即兴演出 { :6340}

offshore [ˌɒfˈʃɔ:(r)] adj. 离岸的；[海洋] 近海的；吹向海面的 adv. 向海面，向海 {gk toefl ielts :7349}

tidal [ˈtaɪdl] adj. 潮汐的；潮的，有关潮水的；定时涨落的 n. (Tidal)人名；(瑞典)蒂达尔 { :8579}

swarm [swɔ:m] n. 蜂群；一大群 vi. 挤满；成群浮游；云集 vt. 挤满；爬 {cet4 cet6 ky toefl ielts gre :8983}

underwater [ˌʌndəˈwɔ:tə(r)] n. 水下 adj. 在水中的；水面下的 adv. 在水下 {toefl :9111}

Lt [ ] abbr. 书信电报（letter message）；数据处理（Language Translation） { :9242}

prowl [praʊl] n. 徘徊，潜行；悄悄踱步 vt. 在…搜寻；潜行于 vi. 徘徊，潜行 {gre :13118}


难点词汇
afoot [əˈfʊt] adj. 在进行中的；徒步的；准备中 adv. 在进行中，在准备中 { :17330}

inshore [ˈɪnʃɔ:(r)] adj. 近海岸的；向陆的 adv. 近海岸；向陆 { :19979}

flamingos [fləˈmɪŋgəʊz] n. 红鹳，火烈鸟（羽毛粉红、长颈的大涉禽）( flamingo的名词复数 ) { :21112}

mullet [ˈmʌlɪt] n. 胭脂鱼；鲻鱼 n. (Mullet)人名；(法)米莱 { :22765}

bottlenose [bɒtli:'nəʊz] n. 宽吻海豚 { :32815}


复习词汇
tides [taɪdz] n. [海洋] 潮汐（tide的复数） v. 随潮水漂浮（tide的第三人称单数） { :3284}

tide [taɪd] n. 趋势，潮流；潮汐 vt. 随潮漂流 {cet4 cet6 ky toefl ielts :3284}

dolphin [ˈdɒlfɪn] n. 海豚 n. (Dolphin)人名；(英)多尔芬 {toefl :4232}


生僻词
tens [ten] 十位


词组
bottlenose dolphin [ˈbɔtlnəuz ˈdɔlfin] [网络] 瓶鼻海豚；宽吻海豚；樽鼻海豚

bottlenose dolphins [ ] [网络] 宽吻海豚；樽鼻海豚；鼻瓶海豚

falling tide [ ] 落潮,退潮

high tide [hai taid] n. 满潮 [网络] 高潮；涨潮；高潮时间

land crab [lænd kræb] 陆地蟹

marine life [ ] n. 海洋生物 [网络] 海洋生态；水中生物；海生物

on the prowl [ɔn ðə praʊl] [网络] 徘徊；正在觅食；徘徊隐匿

peel off [pi:l ɔf] na. 离队；【航空】开始离队急降[俯冲] [网络] 剥离；剥落；剥掉

pulse clock [ ] 《英汉医学词典》pulse clock 脉搏描记器,脉波计

spring tide [spriŋ taid] n. 大潮 [网络] 春潮；潮汛；潮差相对最大时称为大潮

swarm of [swɔ:m ɔv] [网络] 大群；一大堆；一群群

the dolphin [ ] [网络] 海豚；海豚号

the tide [ðə taid] [网络] 潮水；潮汐；潮来潮往

tidal cycle [ ] 潮汐周期

to breed [ ] 配种

turn of the tide [ ] un. 转潮；潮汐交替 [网络] 浮沉；一轮浪潮；潮汐逆流



单词释义末尾数字为词频顺序
 zk/中考 gk/中考 ky/考研 cet4/四级 cet6/六级 ielts/雅思 toefl/托福 gre/GRE
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