北師大版高中英語(yǔ)模塊7--Unit 20 workshop5

[00:01.50]So what is the future [00:03.66]of the exploration of Mars? [00:06.13]In 2014, the first return flight is planned, [00:09.71]which means that a space probe [00:11.37]will bring back to Earth samples of Martian [00:13.86]rock and soil.After that, [00:16.01]there might be the first crewed flight to Mars. [00:18.99]At the moment, a manned mission to Mars [00:20.90]is right at the edge [00:22.20]of our exploration abilities. [00:24.19]There are many problems because of the length [00:26.58]of the return journey [00:28.02]which would take about two years. [00:30.01]But a manned flight could explore the planet [00:32.25]further and even analyse the possibilities [00:35.15]for human settlement on the planet. [00:37.42]Who knows? Maybe our grandchildren [00:39.80]will be living happily on the Red Planet. [00:42.56]To sum up,in many ways Mars is our new frontier [00:46.73]Now that we have explored our own planet, [00:49.19]this beautiful, mysterious, red planet [00:51.89]remains open to us. [00:53.61]Let's just hope that we don't make such a mess [00:56.25]of it as we have done of Planet Earth. [00:58.44]That's all,thank you. [00:59.39]

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