学生啦：课时作业（十）Unit 4 Section I Welcome to the unitReadingI.阅读理解What are your retirement plans?Keep working?Get more exercise?Or leam something new?You may put them on hold.There's a chance that,sooner or later,you might have to movefurther than you were thinking,as far as Mars.On Thursday,National Geographic will show the first-ever Mars show home,givingearthlings (an idea of what their life could look like on the Red Planet.In thenot-so-distant year of 2037,the igloo-shaped structure could be the home of your future.It shows a house built with recycled spacecraft (parts and Martian soil,calledregolith,which has been microwaved into bricks.Some parts of the home are recognizable-akitchen,a bedroom-but there are fundamental differences that are important to human survival.As the Martian atmosphere is around one hundredth as thick as the Earth's,people will needpermanent (shelter from the sun;society will move largely indoors.Most buildings willbe connected by underground passages and the houses won't have windows.The homes will havesimulated solar lighting,or natural light that has been bent several times.Walls will need to be 10 to 12 feet thick,to protect people from dangerous rays (thatcan pass through six feet of steel,and a double air-locked entrance to keep the home under properpressure."We don't think of our houses as things that keep us alive,but on Mars your house will be asurvival centre,"says Stephen Petranek,author of How We'll Live on Mars.This is not just thestuff of sci-fi."10 to 20 years from now there will certainly be people on Mars,"Petranek says."We've had the technology for 30 years to land people on Mars,but we haven't had the will,Petranek says.But two main factors have"completely swung public attitudes".The private companies'participation has forced govemment agencies to speed up their game,and influential films such as Gravity and The Martian have caught society's eye.1.What can we know about the show home from the text?A.It has no windows or doors due to security concem.B.Its design presents the idea of environmental protection.C.It has thick walls keeping the home under proper pressure.D.Its underground passages connect all the buildings together.2.What do the underlined words "put them on hold"in Paragraph 1 probably mean?A.Put them off.B.Give them awayC.Carry them through.D.Take them seriously.3.According to Petranek,what has sped up the process of sending people to Mars?A.The great influence of the Mars show home.B.The development of related technology.C.The competition from private companies.