A. no longer    B. completely   C. compete    D. given up   E. encourage

   Though the sale of bottled water is still on the rise. Certain policy makers have taken steps to reduce it and {#blank#}1{#/blank#} people to drink tap water. In September 2009, the Australian city of Bundanoon became the first city in the world to {#blank#}2{#/blank#} stop bottled water from being sold in stores, building water fountains instead.

   Among the cities in America that have taken action are San Francisco and Seattle, which {#blank#}3{#/blank#}buy water for city use, and Chicago which adds a five-cent tax on each bottle. Several restaurants in those cities have also {#blank#}4{#/blank#} bottled water for tap water. Other cities are also considering taking action.

    Soon computers and other machines will be able to remember you by looking at your eyes! The program works because everyone's eyes are different. So in the future you won't have to remember a number when you want to use a machine or take money out of a bank. You'll just have to look at the machine and it will be able to tell who you are.

    The eye-recognition(眼睛识别) program has already been tested in shops and banks in the USA, Britain, Spain, Italy and Turkey. Soon this technology will take the place of(取代)all other ways of finding out who people are.

    Eye-recognition is a course of recognizing iris(虹膜), which includes the following steps. First, a kind of machine needs to collect different examples of one's iris from his eyes and store them. Second, when this person goes to the bank to take out of money, this machine will have iris feature extraction(采集).Then, this machine will compare the examples kept in it with iris feature extraction. Once the examples and the feature extraction are the same, this person will be identified, and he will take out of the money from the bank successfully.

    However, scientists are also working on other systems. Machines will soon be able to know you from the shape of your face or hand or even your smell! We already have machines that can tell who you are from your voice or the mark made by your finger.

    Eye-recognition is better than other kinds because your eyes don't change as you get older, and don't get dirty like hands or fingers, and even twins have different eyes. So the eye-recognition program can be up to 94% correct, depending on how good the technology(科技)is. However, some other programs may only be 51% correct now. In Britain, it was found that 91% of people who had tried it said that they liked the idea of eye-recognition.

    In the future your computer will be looking at you in the eye. So smile!

    In 2045, I will live in a smart house. It won't be very1, because the earth will be more crowded in thirty years, and there won't be much room for me to2my house. But it will be comfortable and full3smart furniture (家具). In the morning, my bed will “stand up” and wake me up.4I don't need an alarm clock. After I take a shower and then go into the5, my breakfast is already ready.6cooks it? My smart table does.

    I will spend the daytime in my office. But I can still know what is 7in my house. Is there8visiting me? Does my dog do well alone at home? I can watch all of these on my phone.

    When I arrive home in the evening, the lights will “know” I'm back and they will9themselves. I10I will have such a cool house. Do you think so?

    The solar powered bicycle—"Cycle Sol"(太阳能自行车)

A person riding a bicycle uses little energy to make the bicycle move, and there is no pollution at all when you are1. But in some countries most people don't go to work by bicycle because they wouldn't like to spend more time and feel2.

    These3a solar powered bicycle has been invented in England. Persons who ride it may not feel tired, and it's good4the environment.

    The solar-powered bicycle5an electric bike(电动车) but the motor(发动机) runs on a solar energy battery.

    The bright yellow "Cycle Sol" looks like a normal cycle but has a canopy lined with solar cells overhead (可以接受太阳能的天棚装置).

    The bicycle can be left in the daylight to charge(充电), even when the sky is6. You can leave it outside the office during the day to ride to7. These days solar cells are pretty good at8light, so it should still work when the sky is cloudy. 9night, the small battery can be charged using the main electricity in just a few hours. To save energy, when you're peddling up a steep hill, you can turn off the motor. And if10rains, the cell will keep you dry.

    Researcher Robert Engelman from Population Action International says by the year 2025 about 3000 million people may lack water. At least 18 more countries are expected to have serious water problems. The need for water keeps increasing.

    Mr Engelman says the population in these countries that lack water is growing faster than in other parts of the world. The report says lack of water in the future may result in(导致)several problems. It may even increase1problems. Lack of water often means drinking water isn't safe. Mr Engelman says there are problems all over the world because of diseases, Lack of water may also2more international con flint(冲突), Countries may have to compete for water in the future. Some countries, such as Egypt, the Netherlands, Cambodia, now get sixty percent of their fresh water from other countries. And the report says lack of water would affect(影响)the ability of developing to improve their economies. This is3new industries(工业)offer need a large amount of water when they are beginning.

    The Population Action International study gives several solutions4the water problem. One way, it says, is to find ways to use water for more than one purpose.5way is to teach people to be careful and not to waste water. A third way is to use less water of agriculture, The6also says long-term(长期的)ways of dealing with the water problem must include controls on population growth.