Animals are helpful. And animals are very important part of the world. October 4 is World Animal Day. This is a great chance to celebrate our lovely (friend).

    They help keep nature on the right track. For example, bees move pollen (花粉) and seeds among plants. If they don't do so, things may stop (grow), and we would have no food eat.

    Animals can also tell (we) about our past. Studies on monkeys show us human evolution (进化).

    We also keep animals pets. They give us support (支持) and make us happy. So we (not) get lonely.

    We need animals in our (life), and we can't live (with) them. So always show respect (尊敬) and love (to) them.

    You may know several kinds of police, traffic police and street police. But have you ever heard of energy-saving (节能) police?

    A group of 22 new policemen went to work in Beijing. They went around the city to see the use of energy in hotels, office buildings, shopping centres and other public places. One of their aims is to make sure that these places have set their air conditioners (空调) no cooler than 26℃.

    They also set up a special phone hotline so that people can tell them which building doesn't follow the rule.

    "If everyone sets the air conditioner at 26℃, Beijing will save 400 million kilowatt-hours of electricity in one summer. That's one third of all the usage of the city in the season, said an advertisement."

    A show was held in Beijing last week on energy-saving technology (技术) and productions to introduce a green life to the public. Environmentally—friendly machines, like a machine that helps collect used bottles, have attracted lots of attention.

    "We want to tell people that there are some ways to protect the environment. Each of us can find effective (有效的) ways to do it in our daily life," said Liu Qianguang, an environmental engineer.

— water in your glass?

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