Question

15．Have you ever lost your car on a parking lot？It happens．You park and go shopping．When you get back，you fail to find your car．Then you press the button on your car keys so the alarm goes off．It can be frustrating，especially on a hot，sunny day．No，you don't need to install（安装） an expensive GPS system to keep track of your car．That's too expensive．But is there a way to track your car without spending money？Yes，now there is!
A California-based startup company was able to make this a reality．They created a small device（装置） that works with your smartphone，and it could be exactly what you're looking for!
What is it？
It's called TrackR．It is a state-of-the-art tracking device the size of a quarter．It's changing the way we keep track of the important things in our lives．
How Does it Work？
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 track of．It only takes 5 minutes or less．You can attach it to your keys，briefcase，wallet，and anything else you don't want to lose．Then use the TrackR app to locate your missing belongings in seconds．Forget expensive GPS systems or tracking services．TrackR is your VIP when you need to take cars of more important things in life．
How Much is This Thing Going To Cost Me？
You're probably thinking that this device is very expensive…False!TrackR only costs $29!That's a small price to pay for peace of mind，isn't it？
Where can I buy one？
You can buy it directly from the company's website．They ship worldwide and you'll receive your TrackR within a week．
 
19．TrackR can be used toC．
A．replace GPS system
B．save money and time
C．find missing belongings
D．connect the app with the phone
20．From the passage we know TrackR isB．
A．hard to install
B．available online
C．free of charge
D．big in size
21．What is the writhing purpose of the passage？D
A．To show how TrackR words
B．To make TrackR well-known
C．To introduce the usage of TrackR
D．To persuade readers to buy TrackR．

Answer 1

分析 本文是一篇广告布告类阅读，属于广告，本文主要介绍了TrackR的功能，使用方法以及价钱，购买方式，目的是劝说读者购买TrackR．

解答 19．C．细节理解题．根据It's called TrackR．It is a state-of-the-art tracking device the size of a quarter．It's changing the way we keep track of the important things in our lives．以及上文内容可知，TrackR可以帮你寻找丢失的物品．故选C．
20．B．细节理解题．根据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 track of．可知，TrackR可以通过手机应用在线使用．故选B．
21．D．推理判断题．根据文章内容可知，本文主要介绍了TrackR的功能，使用方法以及价钱，购买方式，目的是劝说读者购买TrackR．故选D．

点评 本文是一篇广告布告类阅读，题目涉及多道主旨大意题，细节理解题，推理判断题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测．