We can express thoughts and feelings and send sounds and pictures on our smart phones today. We also communicate by using programs like Skype and Face Time. We can't send tastes, smells or touch, of course. But scientists in Britain are trying to develop a way for smart phones to do just that.

    Adrian David Cheok is a professor at City University in London. He wants people to experience communication using all of their senses. He said "In the real world, we can open up the glass, open the window. We can touch, we can taste, we can smell in the real world."

    To give users a sense of taste, researchers designed two electrodes (电极）that are placed on the tongue. A chemical process creates different tastes through molecules (微粒)on the surface of the tongue. This chemical process sends electrical signals that convince the brain that a person is tasting something. They have already created sour, salty, sweet and bitter tastes.

    "You put these two silver electrodes in your mouth, you put your tongue in between and then it stimulates electrically your tongue and you get a virtual taste perception in your brain."

    A device(设备）called "Scentee" permits users to have the sense of smell. Scentee plugs into a smart phone and can spray tiny clouds of fragrances, including flowers, fruits and coffee. Professor Cheok says the person speaking can activate the device.

    Scentee holds a container with about 100 different smells. The container must be replaced when all the scents（pleasant smells) run out.

    Henry is a little fatter than he wants to be.He wants to1. So he is on a diet(节食). He tries2too much and he eats very little sugarbecause it will make him3. He also does exercise every4. He swims very often,5he runs about two kilometres a day. Now heis6than before. Henry's sister, Susan, ishealthier than Henry.7 is also younger and thinner than he is. She does8 every day, too. She doesn't9 muchmeat. But she eats a lot of fruit and10 because she thinks they are better for her health.

A son takes his old father to a restaurant for dinner. They sit down and order a meal（点餐）. The man orders some rice and vegetables with chicken. His father likes jiaozi very much, so he orders some jiaozi for his father. His father is very old and he doesn't look healthy. Some food is on his T-shirt or pants（裤子）after eating. Some people in the restaurant don't look happy about him when they see him eating food. But the son doesn't care (关心) at all.

When the son gives the waiter money, the waiter says, "Oh, the dinner is free."

The son asks, "Why?"

A young man is next to the waiter and says, "Sir, I'm the boss (老板) of this restaurant. I think you're a great man. You love your father very much, right? I learn a lot from you." The son says, "Yes, you are right. But what do you learn from me?" The boss says, "A lesson (课) for every son and hope (希望) for every old father."

Mohamed Nasar, a 58-year-old fisherman has supported his family of five by fishing in the Nile River for 17 years. But he says fishermen like himself catch fewer fish every. year as the Nile has been polluted. It has been filled with plastic bottles, bags and other waste. 

"Most fish are caught in plastic bottles, and they die," said Nasar. 

A local environmental group named "VeryNile" has asked the island's fishermen to use their boats to collect plastic bottles from the river. VeryNile says it buys the bottles at a higher price than the market price offered by traders or recycling factories (回收站).

The initiative (倡议) provides a solution for helping to clean up the Nile, while providing a way to make more money for fishermen like Nasar. 

"This job has helped us a bit. We come and collect about 20 kilos of plastic bottles, and we get about 10 Egyptian pounds (EGP) for each," Nasar said when he sat in his boat collecting bottles. 

Nasar used to make about 100 EGP a day after six hours of fishing. Now only by collecting bottles, he can make 200 EGP every day. 

Another fisherman said cleaner Nile water would-mean more fish. "For one thing, the Nile is cleaner, and for another, the fishermen now have more ways to make money," he said. 

With the help of more than 40 fishermen, over the past year VeryNile has collected around 18 tons of plastic bottles, and most of them were sent to the recycling factory and were made into new things.