(课件网) 主题语境：人与自然———探究未知 DIVING DEEP Lying under waters across the globe are an estimated three million shipwrecks①.All of them represent attempts over the centuries to explore Earth's furthest corners. [1]Among these is the Esmeralda，the earliest wreck from the age of the European exploration of Asia.Today，some 500 years after the Esmeralda set sail②，there is little —[2]if any—land on our planet left unexplored③.We have more detailed maps of the Moon，and even of Venus and Mars，than we do of Earth's own sea bed. [1]完全倒装句。 [2]if any意为“如果有的话”，为条件状语从句的省略结构。 【词汇积累】 ①shipwreck/' Iprek/n.失事的船；沉船 ②set sail 启航；张帆 set off 出发；引起；动身 set about 着手；开始做…… ③unexplored adj.未勘查过的；未经彻底研究(或探讨)的 Given our limited knowledge，[3]it is perhaps no surprise that exploration of the oceans continues to lead to④ discoveries in various scientific fields.As with⑤the discovery of the Esmeralda，many archaeological⑥finds are made in shallow waters near the coast.These may sometimes include whole cities [4]buried beneath the waves.One such find is the ancient Roman city of Neápolis，discovered off the coast of Tunisia.[5]Believed to have been buried underwater by a tsunami in the fourth century AD，the ruins of Neápolis are almost 2，000 years old.The remaining streets and buildings offer a window into a fascinating period in our history.However，we are only beginning to overcome the challenges of pressure，darkness and extreme cold at vast depths.Fragments of the past [6]lying deep beneath the oceans are still waiting to be discovered. [3]it is no surprise that...意为“不足为奇的是……”，其中it作形式主语。 [4]过去分词短语作后置定语，修饰名词cities。 [5]过去分词短语作状语。 [6]动词-ing形式短语作后置定语，修饰Fragments of the past。 ④lead to导致；通向 ⑤as with 正如；与……一样；就……来说 ⑥archaeological/ ɑ kI 'l d Ik( )l/adj.考古学的；考古的 Amazing biological discoveries are also being made.The dark zones of the oceans may contain up to⑦90 per cent of the planet's fish.In these waters，more than 200 metres deep，[7]where light cannot reach，are extraordinary creatures that appear [8]as if they are straight out of science fiction.Imagine bone-white coral⑧ 6，000 metres below the ocean's surface，growing at the rate of⑨ only one or two millimetres⑩per year.Some of these could be 4，000 years old.[9]Swimming through these black depths is the barreleye ，a strange fish with eyes that can look upwards through its transparent forehead.In the very deepest ocean trenches that are more than 8，000 metres below the surface，the pressure is equivalent to 50 aeroplanes stacked one on top of another.Yet there is still life to be found，even around the deep-sea volcanic openings.These discoveries all help us understand the capacity for life on our planet，even in the most extreme circumstances. [7]where引导定语从句， ... ...
