内容概述：A类小作文
单词积累
krill n.磷虾
Northern Hemisphere 北半球
Arctic Circle 北极圈
hostile adj.敌意的
scorpion n.蝎子
whale n.鲸
breeding n.繁殖，生育
mammal(s) n.哺乳动物
chromosome(s) n.染色体
habitat(s) n.栖息地
suggest v.表明（特别记住这个意思）；建议
同义替换
rise == increase == go up to == grow 上升
fall == decrease == go down to == drop == decline 下降
易混单词
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短语搭配
break + ... + record 打破...的记录
set + ... + record 建立...的记录
be likely to do 很可能做某事
take a detour to do sth 绕道去做某事
feed on + n. 以...为食
compare .. to .. 与...相比
an increasing number of + n. 越来越多的...
an increasingly popular 越来越流行
just under 略低于
句型结构
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语法知识
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其他
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雅思
A类小作文
..., with ... 这里的with翻译为：具有，后面可表明具体数据
In 2005, there were fewer zebras than buffalos, with 40 zebras and 50 buffalos.
from...to... 表达从某阶段到某阶段 from 2005 to 2011
between...and... 表达在某阶段内 between 2005 and 2011
...
