Question

9．What do astronauts eat in space，and why？How did astronaut food come into being？How do astronauts preserve food for long periods of time in space？NASA（the National Aeronautics and Space Administration）（美国国家航空航天局）has been researching food for space travel since the 1960's to find the best way of keeping astronauts from going hungry．
    The research could date from an accident that took place on the first manned Gemini mission in 1965．astronaut John Young managed to sneak（偷偷地拿）a corned beef sandwich onto the GeminniⅢcapsule to eat during its orbit around Earth．To Young's surprise，the sandwich plan did not go as expected； instead the sandwich began to break apart and scatter（散开）through the GeminniⅢcapsule．This could have resulted in disaster，since a small piece of food could have stuck in the air vents（通风孔）and other equipment．The sandwich was stuffed into a pocket to avoid the further mess insid e the small space capsule This incident caused NASA to enforce strict rules on what types of food can be taken into space．
    Space food has come a long way since then．During the Gemini period，the astronauts mostly ate cubed，compr essed foods（压缩食品）high in calories and lightweight．
    NASA expects a long shelf life for space food．The majority of food taken into space has been dried out or heat-treated．These process and use of sodium（钠），make the food taken into space last longer．Research is ongoing into space food to seek out healthier ways to preserve it．Too much sodium is unhealthy，and can badly change the taste of some foods．

39．What happened to John Young in the G eminniⅢcapsule？B
A．His sandwich went bad as expected
B．He couldn't eat the sandwich he had bought
C．His sandwich caused trouble to some equipment
D．He filled his pocket with the sandwich．
40．Why has NASA set up strict rules on the space since the 1960's？A
A．To protect the astronauts'safety
B．To provide enough food for astronauts
C．To limit how much junk food astronauts eat
D．To make it easy for astronauts to get enough nutrition
41．The majority of the space food is dried out or heat-treated in order toD．
A．keep astronauts healthy                  
B．keep it from breaking apart
C．change its taste                     
D．make it last longer
42．What is the text mainly about？B
A．How to make space food               
B．The history of space food
C．A food incident in the Gemini capsule
D．The process of making space food．

Answer 1

分析 本文讲述宇航员太空的食物的历史．   最开始宇航员吃三明治引发的安全事故使科学家关注太空食物，最终确立了现在吃压缩食品的现状．

解答 39．B 细节理解题．根据第二段提到To Young's surprise，the sandwich plan did not go as expected； instead the sandwich began to break apart and scatter（散开）through the GeminniⅢcapsule．可知他不能吃三明治，三明治散开，故选B项．
40．A 细节推断题．根据第二段提到John Young偷带食物到太空中，导致事故，为了保证宇航员的安全，故规定只能吃压缩食品，故选A项．
41．D 细节理解题．根据最后一段提到NASA expects a long shelf life for space food．The majority of food taken into space has been dried out or heat-treated为的是让食品的保质期长，故选D项．
42．B 主旨大意题．本文主要讲宇航员在太空中吃什么样的食品，既能确保他们的安全，又能保证营养，还能让食物保质期长，故选B项．

点评 本篇文章较为简单，多为细节理解题．考生可以读阅读题题干并勾关键词，然后读题支并勾关键词，再读文章勾出对应的句子，返回问题，选出答案．