After a year in the US, I have learned some interesting American expressions．When I am facing a lot of pressure at work, my back and neck would start to hurt．I have too many things to do, because my supervisor is on my back all the time．In other words, my employer is always telling me to do things．
Sometimes I want my employer to get off my back．I cannot say this; I would never turn my back on her or refuse to help when there is a need．If I did refuse to help, my supervisor might say bad things about me behind my back．Sometimes when I am very productive in my job, my employer gives me a pat on the back．She might even say, "I will scratch your back, if you scratch mine．" This means she will do something for me if I do something helpful for her in exchange．
I know that my employer carries a lot on her shoulders．She is responsible for many things at the office．Being important, she often rubs shoulders with the top officials．She spends time with some very important people．I believe the top official values my supervisor．He never gives her the cold shoulder．He always treats her to be an important part of the organization．
I also value my supervisor．In fact I think she is very effective in her job．We are always ahead of others in the yearly sales．But it is not necessary for me to praise my supervisor．So I think I will just save my breath because talking or repeating will not do any good．
(1)
Your boss will show his/her _________ by giving you a pat on the back．
[ ]
A．
kindness
B．
requirements
C．
confusion
D．
satisfaction
(2)
According to the last paragraph, we can infer that _________．
[ ]
A．
the writer thinks the boss doesn't need to be praised
B．
the writer likes to judge people
C．
the writer doesn't admire her supervisor
D．
the writer seldom falls behind in yearly sales
(3)
What is the purpose of the text?
[ ]
A．
To talk about the writer's attitude towards her boss．
B．
To explain some American expressions related to body parts．
C．
To tell readers about the writer's work experience．
D．
To introduce the relationship between the writer and her boss．
To extinguish(熄)different kinds of fires, several types of fire extinguishers(灭火器)have been invented．They must be ready for immediate use when fire breaks out．Most portable(手提式的)kinds operate for less than a minute, so they are useful only on small fires．The law requires ships, trains, buses and planes to carry extinguishers．
Since fuel, oxygen(氧气)and heat must be present for fire to exist, one or more of these things must be removed or reduced to extinguish a fire．If the heat is reduced by cooling the material below a certain temperature, the fire goes out．Water is the best cooling material because it is low in cost and easy to get．
Another method of extinguishing fire is by cutting off the oxygen．This is usually done by covering the fire with sand, steam or some other things．A blanket(毯子)may be used to cover a small fire．
A third method is called separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel．
The method that is used to put out a fire depends on the type of fire．Fires have been divided into three classes．Fires in wood, paper, cloth and the like are called C1ass A fires．These materials usually help keep the fire on．Such fires can be stopped most easily by cooling with water．
(1)
If a fire breaks out on a bus, which of the following should be ready there for you to use?
[ ]
A．
Sand
B．
Water
C．
A blanket
D．
An extinguisher
(2)
To cover a small piece of burning wood with a basin(盆)in order to stop the fire is aft example of ________．
[ ]
A．
separating the fire
B．
reducing the heat
C．
removing the fuel
D．
cutting off the oxygen
(3)
In choosing how to put out a fire, we should first be clear about ________．
[ ]
A．
when it breaks out
B．
how it comes about
C．
what kind it is
D．
where it takes place
(4)
What would the writer probably discuss in the next paragraph?
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