— Of course. He       by people all over the world.

    Apple Inc.'s iPhones may be the most popular mobiles in the world now. Not only adults use them,but little children also like them.

    Natasha Shykes is a mother of two kids in America.When her daughter, Kelsey, was only two years old, she became interested in her father's iPhone. “She pressed the button (按钮) and the phone lit up.It seemed to be amazing for her,” said Natasha. “Then she got serious about the phone. She always cried for it. It seemed that she also wanted an iPhone.”

    Apple Inc.'s iPhones are easy to use. So it is not difficult for little children to use them.Many applications (应用软件) on iPhones are designed for children who are too young to go to school. For example, children can learn more about the animals in the world by watching the videos on the phones.

    However, parents are very worried about this. They don't know whether they should buy their children iPhones or not. There are two main reasons. One is that they are afraid that children may destroy the iphones. Another reason is that they are not sure whether iPhones can really be used as educational tools.

（  B  ）

Clothes    keeping warm.ww.

Great changes have  in western Jinan in the last few years.

 , this meeting is quite successful.

    In the 13th century, the famous Italian traveler, Marco Polo, traveled to China. During his stay in China, he discovered the Chinese used paper money. In western countries, people didn't use paper money 15th century. , people in China began to use paper money in the 7th century. A Chinese man called Cai Lun paper about 2 000 years ago. He put these pieces of paper together and made them into a book.

    We use a lot of paper every day. If we keep on so much paper, there will be no paper. So how can we save paper? We can use sides of every piece of paper. We can choose drinks in bottles of those in paper packets(小包). We can use handkerchiefs(手帕) and not paper ones. When we go shopping we can use fewer paper bags. the shop assistant gives you a paper bag, we can save it and reuse it later.

    has the duty to help to save paper. We should do it now, before it is too late.