题目内容：

Tiny Device Allows You To Track Your Car Using Your Smartphone

Have you ever lost your car on a parking lot? It happens. You park and go shopping. When you get back, you don’t have a clue where your car is. Then you start roaming around clicking on the panic button on your car keys so the alarm goes off. It can be frustrating, especially on a hot, sunny day.

Now, you don’t need to turn to a GPS system or tracking service. Nobody wants to pay expensive monthly subscription fees. A California-based startup company has created a tiny device, TrackR, which works with your smartphone. It could track your vehicle without costing you a fortune.

It’s easy! Install the free TrackR app on your smartphone, connect the app to your device and you’re ready to go! Simply attach TrackR to whatever you want to keep tabs on. The entire process of setting it up only takes 5 minutes or less. Then use the TrackR app to locate your missing item in seconds.

You’re probably thinking that this device is very expensive… False! TrackR only costs $ 29! You can buy it directly from the company’s website. They ship worldwide and you’ll receive your TrackR within a week.

As we said before, TrackR has unlimited possibilities. The device is small and unobtrusive (不引人注目的) enough that you can attach it to your pet, your keys, your briefcase and anything else you don’t want to lose. TrackR even comes with a double-sided adhesive (胶) so you can stick it to your laptop or under your bike seat. Track down and punish the thieves who steal your expensive things!

1.Why does the author mention the lost car in the first paragraph?

A. To stress the importance of protecting your car.

B. To introduce TrackR.

C. To tell you not to be worried about it.

D. To warn you not to park your car casually

2.What do we know about TrackR?

A. TrackR is free of charge.

B. TrackR app costs you only $ 29.

C. TrackR helps you find anything you lose within a week.

D. TrackR is sold to people throughout the world.

3.What does the author mean by “keep tabs on” in paragraph 3?

A. lose sight of    B. come across

C. keep track of    D. take charge of

4.The text probably comes from       .

A. a book review    B. a popular science magazine

C. a science fiction    D. an official document