Besides calling 911, here is what to do in some life-threatening emergencies when no one is around to help．
Lost in the wilderness
First, you've got to acknowledge(承认)you're in trouble．Stay where you can be seen clearly and remember to rest．Keeping a sense of humor helps too－it reduces stress and helps creative thinking．In a wide open area, make a colorful cross out of rocks to show your present position．
Choking
Aim to hit the top of the chair against your stomach in the soft part below the bony upside-down V of the ribs(肋骨)．Make a sudden push against the chair．If you still can't breathe after six tries, call 911, even if you can't talk．Write the word choking somewhere nearby, and leave the line open until help arrives．
Severe bleeding
Use your hand or clean cotton, or paper towels, or a scarf, or any cloth you can find, and push down on the wound until the bleeding stops．But if you put a bandage around your leg tightly, you're going to close the vessels(血管)to the entire leg．In this way, you could lose your foot．
Bear attack
If you surprise a bear, don't run away．That invites an attack．Instead, stand up and back away slowly without looking the bear in the eyes．If it does charge at you, stick out your chest, raise your arms, and spread your legs．Shout at the bear to frighten it．If it’s going to attack, lie face down, with your hands held firmly behind your neck．Play dead until you’re sure the bear is gone．
(1)
When you see a colorful cross made of rocks in the wilderness, you know ________．
[ ]
A．
someone is bleeding
B．
someone is choking
C．
someone is lost
D．
someone is attacked by a bear
(2)
The passage is mainly teaching us how to ________．
[ ]
A．
find out the way
B．
avoid a bear attack
C．
deal with a choke
D．
survive the emergencies
(3)
If a bear comes at you, you should do the following except ________．
Recorded background music first found its way in factories, shops and restaurants in the USA．But it soon spread to other parts of the world．Now it is becoming increasingly difficult to go shopping or eat a meal without listening to music．
The bes known supplier of background music is an American company called “Muzak”．This word “Muzak” is now commonly used in English to refer to recorded music played continuously in restaurant, places of work, etc．The company has carried over a hundred studies which show that background music can create a pleasant atmosphere and improve productivity(生产效率)．It must be used in the right way, though．If the type of “Muzak” is wrong, it may well cause an entire factory to sleep!
(1)
Which of the following statements is true?
[ ]
A．
Background music is only used in the USA．
B．
Background music is used all over the world except the USA．
C．
Most shops and restaurants use background music now．
D．
It's very difficult to listen to background music．
(2)
What's “Muzak”?
[ ]
A．
It's the name of an American company which sells recorded background music．
B．
It's recorded music played continuously in shops, restaurants, places of work, etc．
C．
It's the name of a composer of background music．
D．
Both A and B
(3)
It has been proved that “Muzak” can ________．
[ ]
A．
improve productivity
B．
create a pleasant atmosphere
C．
cause an entire factory to sleep
D．
be all of the above
(4)
The studies of the American company show that ________．
[ ]
A．
the wrong kind of “Muzak”could be harmful
B．
“Muzak” is not good in factories
C．
“Muzak” is welcomed everywhere
D．
“Muzak” can cause sleepiness
(5)
The main idea of the passage is that ________．
[ ]
A．
background music is a good thing
B．
background music is a bad thing
C．
it's important to use background music in the right way
