1、Unit 4 Life on MarsPeriod 2 Reading1.planet n.行星2.polluted adj.被污染的 _n.污染;污染物3.rapid adj.快的,迅速的 rapid+ly _ adv.快地,迅速地4.increase n.增加5.passenger n.乘客pollutionrapidly 6.uncomfortable adj.使人不舒服的;不舒适的 _ adj.舒服的;舒适的7.tasty adj.味道好的 _ n.味道;品味 vt.尝;体验 vi.尝起来;有味道comfortable taste 8.specially adv.专门地,特地 _ ad
2、j.特别的;重要的pare vt.&vi.比较10.rapidly adv.迅速地special 11._再;重新12._随着技术的发展13._以速度14._以形式15._与相比(all)over againwith the development of technologyat a/the speed ofin the form ofcompare to/with16._连接到,相连17._变得越来越拥挤,污染越来越严重18._由于人口的迅速增长connect to/withbecome more and more crowded and pollutedbecause of the rap
3、id increase in population 19.Some people believe that humans could live on the planet Mars _ _ _ 2100.一些人 认为到2100 年人类可以在火星上生活。20.It is hoped that people could start _ _.人们有望能够再次重新开始。by the yearallover again21.However,the spacecraft would travel so fast that the journey to Mars might be _.然而,宇宙飞船的飞行速
4、度会非常快,以至于去往火星的路途可能会相当不舒服。22.The gravity on Mars is only about _of that on the earth.火星上的重力大约 只有地球上的八分之三。quite uncomfortablethree-eighths23._ with life on the Earth,life on Mars would be better in some ways.与地球上 的生活相比,火星上的生活在某些方面会更好。24.Also,robots would do most of their work _ _ they could have more time to relax.并且机器人将会做他们的大部分工作以便他们能有更多的时间去放松。Compared so that 25.Every student would have a computer at home _ _ an interplanetary network.每位学生家里都有一台电脑与星际网络连接。26.Life on Mars would be interesting _ _ _ challenging.火星上的生活将不仅有挑战性,还很有趣。connectedtoas well as
