在进行送风量计算时，空气泄漏率通常采用1.0。

Beat the Burglar
Don’t invite crime---take basic, sensible precautions. Your house and possession are valuable and must be properly protected. When you buy a lock, you buy time. The best prevention is delay and noise which could mean discovery. 

When you leave it---lock it! First of all, fit security locks to all doors and windows and a safety chain on the front door. Secondly, use them! If you have any ladders or tools, don’t leave them lying about in the garden, lock them away. “Safe” or “secret” places for keys and valuables are not reliable --- nine times out of ten, they are the first place a thief will look.

When you move house… When you move into a new home even if it is fitted with security locks, change them. You don’t know who else may have keys. Never let strangers into your house. An official-looking cap is not enough, ask for proof of identity and look at it carefully --- if you are still not satisfied, don’t let the person in.

Valuables need special protection Valuables should really be given special protection --- preferably by leaving them with your bank. A small security safe works too, but not to the most determined burglar. It is also important to keep an up-to-date list of valuables and their descriptions. In the case of fine art, paintings, or jewelry, color photographs can sometimes be of assistance to the police if you are unfortunate enough to have them stolen. Enter the details on the back of the pictures. But don’t keep such documents in your house, keep them at the bank or with your insurance company.

Going on holiday? Don’t talk about your holidays and future plans loudly in public. Do remember to cancel the milk and newspapers and also to draw curtains back. Operate a “Good Neighbor” program to ensure that mail is taken in, the house is checked regularly and that lights are put on. Call at your local police station and tell them you are going away. Make sure that they know how to contact you in case of trouble. Don’t leave cash or valuables in the house --- take them with you or put them in the bank.

小题1:When moving into a new house, you are supposed to __________.

A．buy a safe	B．change the locks
C．visit your neighbors	D．stay away from strangers

小题2:Which is the safest way to protect your valuables?

A．Taking pictures of your valuables.

B．Putting your valuables in your safe.

C．Keeping your valuables at the bank.

D．Giving a list of your valuables to the police.

小题3:When you are away for holidays, you __________.

A．should cancel your mail

B．shouldn’t leave your keys to your neighbors

C．shouldn’t make it known that your home is empty

D．should ask the police to check your house regularly

小题4:What is the purpose of the passage?

A．To inform people of safety standards.

B．To introduce the advantages of banks.

C．To prove the importance of security locks.

D．To educate people on prevention of burglars.