学为贵和大家分享分享雅思阅读机经词汇——鲸鱼的起源,还有重点题型和句子讲解,希望帮助大家提升阅读能力,更多干货欢迎随时关注我们的更新哦~
雅思机经词汇 - 鲸鱼的起源
cetaceans /s??te??n/ n.鲸目动物
porpoise /?p?rp?s/ n.鼠海豚
gill /ɡ?l/ n. 腮
fluke /flu:k/ n.鲸鱼的尾鳍
sea otter 海獭
pinniped /‘p?n?ped/ n.鳍足类动物
seal /si:l/n.海豹
walrus /w?lr?s/n.海象
archaeocyte /ɑ’ki?s?t/n.原始细胞
jawbone /d??:b??n/n.下颌骨
vestigial /v??st?d?i?l/adj. 残留的,残余的
locomotion /lo?k??mo??n/n.运动,移动
重点句型讲解
The structure of the backbone shows, however, that Ambulocetus swam like modern whales by moving the rear portion of its body up and down, even though a fluke was missing.
解析:
show that宾语从句+even though让步结构
理解:
不过,从 Ambulocetus 的脊椎结构上可以看出,即使缺少尾片,它们也能像现代鲸鱼那*身体背部的上下摆动来游走。