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）（美國國家航空航天局）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．a(chǎn)stronaut 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（散開）through the GeminniⅢcapsule．This could have resulted in disaster，since a small piece of food could have stuck in the air vents（通風(fēng)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（壓縮食品）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（鈉），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 本文講述宇航員太空的食物的歷史．   最開始宇航員吃三明治引發(fā)的安全事故使科學(xué)家關(guān)注太空食物，最終確立了現(xiàn)在吃壓縮食品的現(xiàn)狀．

解答 39．B 細(xì)節(jié)理解題．根據(jù)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（散開）through the GeminniⅢcapsule．可知他不能吃三明治，三明治散開，故選B項(xiàng)．
40．A 細(xì)節(jié)推斷題．根據(jù)第二段提到John Young偷帶食物到太空中，導(dǎo)致事故，為了保證宇航員的安全，故規(guī)定只能吃壓縮食品，故選A項(xiàng)．
41．D 細(xì)節(jié)理解題．根據(jù)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為的是讓食品的保質(zhì)期長，故選D項(xiàng)．
42．B 主旨大意題．本文主要講宇航員在太空中吃什么樣的食品，既能確保他們的安全，又能保證營養(yǎng)，還能讓食物保質(zhì)期長，故選B項(xiàng)．

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