阅读下面短文，然后根据短文内容，从各题所给的四个选项中，选出一个最佳答案，

The weather is closely related(联系) to our life. It is all around us all the time. It is an important part of our lives. We cannot control it, but it often controls how and 1 we live, what we do, what we wear and what we eat. Read this passage and learn2 about the weather.

What is the weather?

The weather is just the state of the atmosphere3any time, such as temperature, wind,4sun,etc.

What makes the weather change?

As we know, not every place on the earth gets the same amount of sunlight. Some places get5unlight, so it's warmer in those places. However, some places get little 6no sunlight in winter. Then those places have colder temperatures. These differences in temperature make the air and water 7 around the earth. The movement helps to take the heat energy from the sun across the earth. So the8 changes.

What's the difference between weather and climate?

Climate is a place's weather over a long time. The weather changes from day to day and 9from hour to hour. It can be sunny in the morning and cold and wet in the afternoon. But the climate changes very 10over lots of years. 

    Today, I am very happy to have a meeting with you. At the meeting we will talk about the 1 we have these days. We all know the problems of 2 and the objects falling from windows are getting worse. We have received lots of letters about such problems. So   3 is time for possible ways to work out these problems.

    Some dog owners don't take care of their dogs well enough, and they let their dogs make mess on the roads and in gardens. This makes the environment 4. I would like to tell the dog owners that their behavior is too b ad, and at the same time they are making people 5 unhappy. We should keep the environment 6.

    It is reported that some people 7 rubbish out of the windows. It is dangerous because falling objects 8 hurt others. It is against the law. We should put up a notice to teach people not to do so. If it is found, we will record the names and address of those people who throw objects. Then, a warning will be given and 9 will be punished by law.

    A safe and comfortable living environment is important to us. 10 we try our best to care for our community, it will be a good place to live in. Thank you for your coming.

    The computer is fast, and never makes a mistake, while people are too 1 and full of mistakes sometimes. That's what people often say when they talk about computers. For over a quarter of a century, scientists have been 2 better and better computers. Now a computer can do a lot of everyday 3 wonderfully. It is 4 used in factories, hospitals, post offices and airports. A computer can report, decide and control in almost every field. Many computer scientists are thinking of making the computer “think” like a man. With the 5 of a person, a computer can draw pictures, write music, talk with people, 6 chess, recognize voices, translate languages and so on. Perhaps computers will one day really think and feel. Do you think the people will be 7 when they find that the computer is too clever to listen to and serve the people? No, people will make 8 use of the computers in the future. Man is always the master of the computer. The computer 9 only with the help of man. It cannot take the 10 of man.

    A great way to limit(限制) your impact(影响) on the planet is to follow other animals' way of eating. Squirrels（松鼠）, 1, eat nuts close to their tree houses. Elephants eat trees or plants that 2 around. What these animals are doing is eating in season and locally. We can do the same.

    Most of our favourite fruit and vegetables have their own natural seasons. Modern farming techniques make it 3 for us to eat all kinds of things any time of the year. However, 4 we eat our food in their natural seasons, we will save more energy.

    Eating locally means eating things that are grown close to your home. It will lower the impact that you and your eating 5 have on the environment. An easy way to 6 local produce is to shop at a nearby farmer's market.

    One of the best things you can do is to grow your own food. It may seem like a lot of 7but people and communities all over the country grow some or all of their own food.

    There are many 8 to grow your own food. By doing this, you can 9 where your food comes from. Besides, you can make sure that your food is fresher. It can 10 weeks for the food to get from the farm to the supermarket.

    By growing your own food, those weeks become just days, hours or even seconds. Now that's fresh!