题目内容：

With about 10 million new iPhone 6s ordered in the initial days on the market, a lot of old iPhones are bound to be thrown into the dustbins. Sure, you could sell, donate or recycle your old iPhone, but you probably will not. And there are better things to do with it.

One creative example: At the Missouri University of Science and Technology, a biology class is making old iPhones into microscopes. Using less than $10 worth of supplies, the old phones are mounted onto a lens and can magnify an object to 175 times its size.

Here are 5 smart-and-cheap uses for old iPhones.

Music for your car

Take your music library on the road. Some cars are equipped with docking ports for iPhones and have dashboard screens so you can choose your favourite music hands-free. Or you can just use the cigarette lighter for power.

Remote Control

Televisions, speakers and other devices now have apps that allow users to make their iPhones into fashionable remotes. Carm Lyman, 42, of Napa, California, transformed his iPhone 4 into a remote for his household sound system after his iPhone 5 arrived. Lyman can control the audio levels and activate speakers in various parts of his home as well as access different music services.

Cookbook

No need to go through recipe books or hunt around for other devices when you have a kitchen iPhone. Download a cookbook app, such as My Recipe Book (99 cents) or Big Oven (free), and just leave the device on the kitchen counter. It takes up almost no space and will hold far more recipes than any book.

Baby Monitor

Sure, you can spend $100 or more on a baby monitor, or you can just set your old iPhone up to watch video of your baby in real time as well as hear and even talk to him or her. Cloud Baby Monitor ($3.99) also allows parents to receive the signal on a wireless network or on WiFi so they do not have to be within a certain number of feet of the monitor.

Vehicle Tracker

Whether you need to find your car if it is stolen, record where you have traveled, or spy on your teenage driver, the built-in GPS in your phone can be used as a tracking device. An app like InstaMapper ($2.99) lets you watch the vehicle in real-time and have a record of it. Keep in mind that the phone can still dial 911, even if it does not have cellphone service, Smith said.

You can also use your old phone as a back-up in case your new model suffers irreparable harm. That said, the battery of a phone that sits in a drawer unused could be exhausted to the point where it is no longer workable.

1.We can learn from the passage that an old iphone___________.

A. can be used as a microscope

B. is necessary to be charged regularly

C. can light a cigarette in a car

D. is able to communicate with a baby

2.Who will probably benefit the most from an old iphone?

A. A housewife      B. A musician

C. A traveller      D. A phone user

3.If you expect the uses to work properly, ___________.

A. the wifi is a must

B. you are required to download apps

C. cellphone service is needed

D. some extra work must be done to your phone

4.Which of the following statement is true?

A. The uses mentioned above can’t funtion in an iphone6.

B. The uses can be available in a certain small area.

C. An old iphone may give you clues about a stolen car.

D. A cookbook app takes up no space of your old iphone.