与亚硝酸盐摄入过多有关的是（） A.食管癌 B.Burkitt淋巴瘤 C.乳腺癌 D

What do you usually use your cellphone for? Calling friends or sending them text messages?
As technology develops，nowadays cellphones can do much more than that．They have become all-in-one cell-phones.
A typical example is Apple’s phone.The touch-screen cellphone plays music，connects to the Web，sends emails and takes photos. More than 1 million Apple’s phones have been sold since it was sold in June.
“Today’s young people enjoy using all kinds of digital functions，such as those of a music player，a camera and even a computer. An all-in-one cellphone is easy to carry. That is the goal of developing a technology to make our lives more convenient，simple and relaxed，said Professor Ding Shouqian at Nankai University．
However, the all-in-one cellphones come with some problems. Users have complained that they are too complicated to use them, and that their battery life is too short. Cellphone producers say that they are working hard to make their phones even better.
It is very convenient to use it. “We are trying to make the cellphones in a way that people can quickly move from phoning to taking pictures to listening to music, said Alastair Curtis, Nokia’s chief designer.“If you look at the Nokia 3250 model, it has a twisting(转动) bottom. So you twist it half a turn，and it’s in camera mode. You twist it another 90 degrees, and it’s in music player mode．”Japanese companies such as Toshiba and Fujitsu are also working to develop a new kind of battery for cellphones．
If all the problems are solved in the future, all-in-one phones will change our lives for the better.

Title:  小题1:	Situation	With the   小题2: technology, nowadays cellphones can do much more than that.
	Functions	◆It plays music. ◆It is    小题3:  to the Web. ◆It can send e-mails and take photos. ◆It can even be used as   小题4:     .
	小题5:	◆The cellphones are    小题6:   carried. ◆The cellphone is designed to bring people much more    小题7:   , simplicity and relaxation.
	Problem	◆They are too complicated to use. ◆Their battery life is short.
	小题8:	◆To make it easy and   小题9:   to move from one mode to another ◆The companies make better batteries that last  小题10:    than those at present.