题目内容：

Every mobile phone user worries about the battery life… Finally it’s here! The amazing mobile phone solar charger will make sure your phone never runs out of battery again.

Our solar chargers are suitable for most phones: iPhone, Blackberry, Samsung, HTC, OPPO and LG. Our solar chargers can also charge your iPad, MP3 / MP4 player, iPOD, camera,GPS and so on. They are supplied with a wide range of adaptors(转换插头), which are suitable for different kinds of devices.

Our chargers are light and small. They fit very easily into a pocket. You can use the power of the sun to charge your solar charger on sunny days, and if your charger needs power on dull days, it can be charged by your PC via its USB connection.

Our chargers store many hours of battery life depending on which model you choose. The higher the mAh (电池的容量单位) is, the more powerful the charger is. The solar charger is great for: heavy phone users, travelling, backpacking, camping trips, boating, long plane flights and saving energy (clean and environmentally friendly). It is perfect for charging in foreign countries — you may arrive at your overseas hotel destination and not be able to find a local adaptor.

Keep one for emergencies — it could save your life. What if you break down in the middle of nowhere and you have no battery to call for emergency help? Or when there is no power available?

If you won’t leave home without your phone, then don’t leave home without one of our solar charger.

iPhone Solar Charger — 1,900 mAh

Price: US$37

Weight: 69g

Colour: Black

It stores the power until you use it.

Leather iPad Charger — 4,400 mAh

Price: US$121

Weight: 400g

Colour: Red, black, white ＆pink

Hard Plastic Solar Charger — 1,600 mAh

Price: US$51

Weight: 60g

Colour: Black

1.We can learn from the text that the solar chargers are suitable for ________.

A. Apple devices only

B. mobile phones only

C. many devices including phones

D. batteries made of certain materials

2.The solar chargers ________.

A. cannot be charged in the dark

B. are pocket-sized and energy-saving

C. can charge a phone faster than other chargers

D. don’t waste electricity while they’re not being used

3.What can we learn about the three types of solar chargers from the text?

A. The Leather iPad Charger has only one colour.

B. The Hard Plastic Solar Charger is the lightest.

C. The iPhone Solar Charger is the most expensive.

D. The iPhone Solar Charger can be charged while recharging a battery.

4.Which type of solar charger is the most powerful?

A. They are all equally powerful.

B. The iPhone Solar Charger.

C. The Leather iPad Charger.

D. The Hard Plastic Solar Charger.