04 4
文本
████ 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：
[本次分析采用基础词汇量：
birds arrive
from the south
and feed on the
that's now within their reach
Brunnich's are the
northern equivalent of
But they have retained
the power of flight,
for they need to
reach cliff
where their nests will be safe
from bears and foxes
Nonetheless, they are as at home
in the water as in the air
They to a depth of fifty
metres or more to catch fish
June, the ice begins
to
The cracks - or leads
- form useful corridors
of open water for
air-breathing animals
,
their feeding grounds,
use these leads to
the ice-covered seas
and reach areas where
their preferred food,
, has spent the winter
The males regularly about
five hundred metres to find fish
The females and young, which have
smaller lungs, only go to about 350
late June and July,
arrive
The females, who usually lack ,
come first with their new
The males follow a little later
They also move up the leads in
search of fresh feeding grounds
. Up to 1 8 metres long
and weighing a hundred tonnes,
these are the only large whales
that stay in all year round
They are not after fish
They are seeking smaller prey
Despite having the largest mouths
in the animal kingdom,
the size of a small garage,
they eat tiny
- - straining them from the
water with the four-metre long strips
of that hang from
their
the summer they store
enough energy to last them
through the following winter,
when food will be less
As the ice , the
bears are forced to head for land
They are excellent
and can cover a hundred miles
of continuous open water
if need be
Off east ,
there is little ice left by August,
so
to rest on land
At this time of the year
they are ,
getting rid of their old
and parasite-ridden skin
A the cold water brings
some relief from
But even there,
the odd scratch is
知识点
重点词汇
scarred ['ska:d] adj. 伤痕累累，有疤痕的；瘢痕性的 { :5026}
penetrate [ˈpenɪtreɪt] vi. 渗透；刺入；看透 vt. 渗透；穿透；洞察 {cet4 cet6 ky toefl ielts gre :5036}
dive [daɪv] n. 潜水；跳水；俯冲；扑 vi. 潜水；跳水；俯冲；急剧下降 n. (Dive)人名；(法)迪夫 {gk cet4 cet6 ky toefl :5121}
calves [kɑ:vz] n. 小牛；小腿；腓；呆子（calf的复数） n. (Calves)人名；(法)卡尔夫 { :5425}
arctic ['ɑ:ktɪk] n. 北极圈；御寒防水套鞋 n. (Arctic)人名；(英)阿克蒂克 adj. 北极的；极寒的 {gk cet6 toefl ielts gre :6116}
fracture [ˈfræktʃə(r)] n. 破裂，断裂；[外科] 骨折 vt. 使破裂 vi. 破裂；折断 {cet6 ky toefl ielts gre :6123}
abundant [əˈbʌndənt] adj. 丰富的；充裕的；盛产 {gk cet4 ky toefl gre :6223}
migrating ['maɪɡreɪtɪŋ] v. 迁移；迁徙；移居（migrate的ing形式） { :6504}
polar [ˈpəʊlə(r)] n. 极面；极线 adj. 极地的；两极的；正好相反的 n. (Polar)人名；(德、西)波拉尔 {cet6 ky toefl ielts gre :6795}
seafood [ˈsi:fu:d] n. 海鲜；海味；海产食品 {ielts :6817}
bathe [beɪð] n. 洗澡；游泳 vt. 沐浴；用水洗 vi. 洗澡；沐浴 n. (Bathe)人名；(德)巴特；(英)巴思 {gk cet4 ky ielts :7550}
swimmers [s'wɪməz] n. 游泳者（swimmer的复数形式）；白色有光绒面呢 { :8151}
ledges [ledʒz] n. （墙壁，悬崖等）突出的狭长部分( ledge的名词复数 ); （平窄的）壁架; 横档; （尤指）窗台 { :8316}
irresistible [ˌɪrɪˈzɪstəbl] adj. 不可抵抗的；不能压制的；极为诱人的 {toefl :8738}
cod [kɒd] abbr. 货到付款（cash on delivery）；货到收款（collect on delivery）；化学需氧量（chemical oxygen demand） { :9869}
penguins [ˈpeŋɡwinz] n. [鸟] 企鹅（penguin的复数） { :10209}
predatory [ˈpredətri] adj. 掠夺的，掠夺成性的；食肉的；捕食生物的 {toefl :11039}
itching ['ɪtʃɪŋ] n. 痒（等于itch）；渴望 adj. 痒的；渴望的 v. 发痒（itch的ing形式）；渴望 { :11994}
Greenland ['gri:nlәnd] n. 格陵兰（北美东北的一大岛名，属丹麦） { :12579}
belugas [biˈlu:ɡəz] n. 鲟( beluga的名词复数 ); 鲟子酱; 白鲸 { :14304}
难点词汇
tusks [tʌsks] n. （象等动物的）长牙( tusk的名词复数 ); 獠牙; 尖形物; 尖头 { :16945}
crustaceans [krʌs'teɪʃnz] n. 甲壳纲动物（如蟹、龙虾）( crustacean的名词复数 ) { :20077}
moulting [məʊltɪŋ] v. 换羽，脱毛( moult的现在分词 ); <喻>去掉（旧习惯、观点等） { :26637}
guillemots [ɡɪlɪ'mɒts] [医]海鸥 { :28710}
ln [ ] abbr. 自然对数（Napierian Logarithm）；液态氮（Liquid Nitrogen） { :28828}
narwhals [ ] (narwhal 的复数) n. 独角鲸（等于narwal）；一角鲸（一种齿鲸, 雄性有一长牙） { :35187}
copepods [kəʊp'pɒdz] 桡足类 { :37069}
baleen [bə'li:n] n. 鲸须 { :45697}
复习词汇
metres [ˈmi:təz] n. 米( metre的名词复数 ); （诗的）格律; 用于竞赛名称 metres { :2099}
生僻词
bowheads [ ] (bowhead 的复数) n. 北极露脊鲸
walruses [ˈwɔ:lrəsiz] n. 海象( walrus的名词复数 )
词组
Arctic cod [ ] [网络] 北极鳕鱼；那就是北极鳕鱼
bathe in [ ] na. 泡在(水中)；浸在(日光中) [网络] 沐浴在……里；沉浸在……里；发音播放
dive down [ ] [网络] 潜入；潜下；潜入水中
dive to [ ] [网络] 跳到
haul out [hɔ:l aut] un. 一走了之；收敛；拉出
melt away [melt əˈwei] na. 融掉；消失；(钱)渐渐花光；(使)着迷 [网络] 融化；融化掉；融化或溶解而消失
migrate to [ ] (尤指鱼、鸟)定期移栖到，回游到，定期迁往
polar bear [ˈpəulə bɛə] n. 北极熊；白熊 [网络] 冬泳者；极地熊；北极熊篇
polar bears [ ] na. 北极熊 [网络] 北极熊的采血点；爱上北极熊；梁伟灏
the Arctic [ ] [网络] 北极；北极地区；北极圈
the itch [ ] [网络] 痒痒舞；这里痒；坐立难安
to nest [ ] [网络] 营巢；为…筑巢
upper jaw [ ] un. 上颌 [网络] 上颚；颜面骨主要由上颚骨；颌骨
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
* 词汇量测试建议用 testyourvocab.com