完形填空,阅读下面的短文，从短文后各题所给的选项中选出能填入空白处的最佳答案。

Bees live in a house that is called a hive. There are three kinds of bees: workers, drones (雄蜂) 1queens. Only one queen bee can live in each hive. If she is lost or dead, the other bees 2 their work.

Workers are very clever and busy. They all join together3 small rooms called cells of wax for their honey. Each worker bee does its own work. Some go out and collect honey from the flowers; 4 stay at home and work inside the hive. The cells5have six sides are made by worker bees. Did you ever look into a glass hive and see them while at work? It is 6to see how busy they always are. Before winter comes, all the drones are driven from the hive7 they don't eat the honey they did not collect.

It is not safe 8 children to be too close to bees. Bees have painful stings they use in their defense (防御).

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    In the future, some tiny computers would be put in our heads. This can help people a lot. 1 the tiny computers, the people who have ear disease will be able to hear. And those with eye diseases can 2. The tiny computers will not be just for 3 people. Most of us will have one to make our life 4. For instance, if we have it, we will be able to think 5 and we can memorize more.

    For every student，computers can do 6 things. Perhaps in the near future, they 7 schoolbags. The students just need to carry a small computer to 8, because the computer takes the place of the textbooks, exercise books and note books. The teachers will check their homework with computers, 9. But this can cause another problem because 10 will be easier for students to copy each other's homework.

B

    We can get the weather report on the Internet. We can also know it by watching TV or listening to the radio. But how can we know it without TVs, radios or the Internet? Now let me tell you some other ways.

    One way is to study the clouds. In fact, the higher the clouds are, the better the weather will be; the lower the clouds are, the worse the weather will be. If the thick and fluffy(轻软状的) clouds get bigger early in the day, then it will rain. If a sudden, cool and dark thunder­cloud appears, then a storm is about to come.

    Colours in the sky tell us about the weather, too. A golden ring around the moon warns us that a storm is on the way.

The rainbow has a message, too. If the sun is in the west and the rainbow is in the east, the rain will be moving away from you.

    Life in the year 3044 is very different 1  life in the 21st century. We still do many of the things you do, but we do them 2  For example, we now have e-friends to help us and company us. An e-friend is a machine that looks just 3 a human being. It can walk and talk and can do almost 4 we human beings do. My e- friend is a lot like me and we have 5 fun together. She helps me 6 my homework and we often go swimming. She is programmed to take care of me if anything 7, so I always feel safe when we are together.  She can also send me messages, just like old-fashioned emails, and I can download information from her memory. It's great  8an e-friend--I am never lonely and I always have someone to talk 9.

    I would like to tell you more about life in the year 3044, but I have to send my e-friend to clean up my room. Maybe 10 I will be able to travel back in time and visit you.

    In some science fiction films, people in the future have their own robots. These robots are just like humans. They help with the housework and do the most1 jobs.

    Some scientists believe that there will be such robots in the future. However, they agree it may take hundreds of years, Scientists are now trying to make robots look like people and2 the same things as us. Japanese companies have already made robots walk and dance. This kind of robot will also be fun to watch.

    But robot scientist James White disagrees. He thinks that it will be3 for a robot to do the same things as a person. For example, it's easy for a child to4and know where he or she is. Mr White thinks that robots won't be able to do this. But other scientists disagree. They think that robots will be able to talk to people.525 to 50 years.

    Robot scientists are not just trying to make robots look like people. For example, there are already robots 6 in factories. These robots look more like huge arms. They do simple jobs over and over again. People don't like to do such jobs and will get bored, But robots will7 get bored.

    In the future, there will be more robots everywhere, and humans will have8 work to do. New robots will have many different9. Some will look like humans, and others might look like10 ， After an earthquake, a snake robot can help look for people under buildings. That may not seem possible now, but computers, space rockets and even electric toothbrushes seemed impossible a hundred years ago. We never know what will happen in the future!