What are you going to do if you are in a burninghouse？How will you escape？Do you know how to save yourself？Please read the following passage．
Escaping a fire is a serious matter．Knowing what to do during a fire can save yourself．It is important to know the ways you can use and to show them to everyone in the family，such as stairways（楼梯） and fire escapes，but not lifts．
From the lower floors of the building，escaping through windows is possible，learn the best way of leaving through windows with the least chance of serious injury（伤害）．
The second floor windows are usually not very high from the ground．An average（普通的） person，hanging by the finger-tips will have a drop of about six feet to the ground．It is about the height of an average man．Of course，it is safer to jump a short way than to stay in a burning building．
Windows are also useful when you are waiting for help．Be sure to keep the door closed，or smoke and fire may be drawn into the room．Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked（渗入） into the room．
On a second or third floor，the best windows for escaping are those which open onto a roof．From the roof a person can drop to the ground more safely，dropping onto stones might end in injury，bushes and grass can help to break a fall．

76．It is important to    ．
A．know the way to escape a fire                    
B．put out a fire in a burning house
C．jump out of a burninghouse                      
D．keep thedoor closed
77．It is possible to escape through the windows    ．
A．if there are somestones on the ground
B．if there is some grass on the ground
C．if you live on a higher floor                      
D．if you have a short enough rope
78．Which of the following is RIGHT according to the information inthe passage？    
A．You can escape through lifts．
B．You can choose fire escapes．
C．You can’t escape through stairways．
D．Keep your head high atthe window to be sure you get fresh air．
79．Keep the door closed so that     if the building is on fire．
A．smoke and fire can’t be drawn into the room                            
B．you cancall for help
C．you can getfresh air
D．you can besent first
80．The best title for the passage is    ．
A．Escaping through the windows
B．Saving yourself from a burning house
C．Knowing on fire
D．Waiting for help．

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