2010年全国职称英语理工类（C级）考试真题及答案
I am sure that you are asking．"How does a rocket fly?"If you want to know，get a balloon andthen blow it up until it is quite big．Do not tie up the neck of the balloon．Let go!The balloon willfly off through the air very quickly．The air inside the balloon tries to get out．It rushes out through neck 0f the ballOOfl and this pushes the balloon through the air．It does not need wings like an air. plane．
This is how a rocket works．It is not made of rubber like a balloon，of course．It is made ofmetal．The metal must not be heavy but it must be very strong．There is gas inside the rocket whichis made very hot．When it rushes out of the end of the rocket，the rocket is pushed up into the air．
Rockets can fly far out into space．Rockets with men inside them have already reached themoon．Several rockets，without men inside them，have been sent to other worlds much farther away．
One day rockets may be able to go anywhere in the space．
41．What color is the sky?
A．It iS blue． B．It iS white．
C．It is grey．D．It has no color．
42．When an airplane flies too high，___________.
A．the air will be too thin to support its wings．
B．the air will become thicker．
C．the air will exert pressure on it．
D．the air will disappear in no time．
4 3．A rocket can fly to the moon because__________
A．it looks like a balloon．
B．it is much lighter than an airplane．
C．it doesn't have wings．
D．it works like an untied balloon．
44．Which of the following statements about a rocket is NOT true?
A．It can fly when there is no air．
B．It can fly without wings．
C．It is made of strong metal．
D．It is propelled by burning gas inside it．
45．A rocket is pushed up into the air when__________
A．hot gas rushes out of its head．
B．it is powered by gas．
C．hot gas rushes out of its bottom．
D．hot gas rushes out of its neck．
第5部分：补全短文(第46～50题，每题2分。共lO分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
Houses of Future
What will houses be like in thirty years'time?No one really knows，but architects are trying topredict．________(46)．
Future houses will have to be flexible．In thirty years'time even more of us will be working fromhome．So we will have to be able to use areas of the house for work for part of the day and for livingfor the rest．Families grow and change with children arriving，growing up and leaving home． _________(47)，nothing will be as fixed as it is now．The house will always be changing to meetchanging needs．
Everyone agrees that in thirty yeasr's time we will be living in"intelligent"houses．We will beable to talk to our kitchen machines and discuss with them what to do．Like this，"we'll be haying aparty this weekend．What food shall we cook?"_________(48)．We will be able to leave most ofthe cooking to the machines，just tasting things from time to time to check．
The house of the future will be personal-each house，__________(49)，you won't haye to paintthem-you'll be able to tell the wall to change the color!And if you don't like the color the next day． You will be able to have a new one．______(50)．
A．you will be able to change the color of the wall easily
B．the only thing you won't be able to do is moving the house soreewhere else
C．and the machine will tell us what food we will have to buy and how t0 cook it
D．what will our home be like
E．the house of the future will have to grow and change with the family
F．the kids might take their bedrooms with them as thev have
第6部分：完形填空(第51～65题，每题1分，共15分)
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
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