阅读表达。阅读下面的材料回答后面的五个小题。（每小题3分，满分15分）
Joe Templer should have known better. After all, he works for a large auto insurance company. It won't hurt to leave the key in the truck this once, he thought, as he filled his gas tank at a self service gas station. But moments later, as he was paying the money, he saw the truck being driven away.
In 1987, 1.6 million motor vehicles were stolen in the United States one every 20 seconds. If _________________, experts predict annual vehicle thefts could exceed two million by the end of the decade.
Vehicle theft is a common phenomenon, which has a direct impact on over four million victims a year. The cost is astonishing.      
Many police officials blame professional thieves for the high volume of the thefts. It is a major money maker for organized crime. Typically, stolen cars are taken to pieces and the parts sold to individuals. But as many as 200,000 cars are smuggled out of the country every year. Most go to Latin America, the Middle East and Europe.
Only about 15 percent car thefts result in an arrest, because few police departments routinely conduct in depth auto investigations. When thieves are arrested, judges will often sentence them to probation（缓刑）, not immediately put them in prison because the prisons are overcrowded with violent criminals.
One exception is a Michigan program that assigns 92 police officers to work full time on the state's 65,000 car theft cases a year. Since 1986, when the effort began, the state's auto theft rate has fallen from second in the nation to ninth.
小题1:What is the best title of the passage? (Please answer within 10 words.)
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小题2:Why do you think Joe Templer should be blamed according to the writer? (Please answer within 10 words.)
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小题3:Please fill in the blank with proper words or phrases. (Please answer within 10 words.)
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小题4:Put the underlined sentence in the passage into Chinese.
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小题5:What suggestions would you give the car owners to prevent the car theft? (Please answer within 20 words.)
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