Matt Mason has seen the future--and it's fun. Mason likes thinking about how machines can make our lives easier by doing the work we hate, such as cleaning. He shows a hard floor cleaning system（系统）that's built into the wall: it will blow dirt to a part of the room where it will be collected by a vacuum（吸尘器）. Then the system will drop some cleaner on the floor and an arm will mop（用拖把擦） it up. “This may trouble you,” says Kara, an expert in Mason's company. “But you can program it to come on at 3 a m, and it will just wet-mop the floor for you.”

　　When it comes to the kitchen, Bruce Beihoff, another expert at Whirlpool, is sure that in a few years, robots will be doing most of the boring work, freeing us to relax. “More than just fun, future kitchens will be environmentally friendly,” he says. “A new system will be built in the house which can recycle energy（能量）lost from your kitchen to make the whole home warm.”

　　“The fridge will be the center of the home,” says Daniel Lee, a market expert. The fridge will have a touch screen（触摸屏幕）where you can watch TV, surf the Internet, check your e-mail, keep a shopping list and order vegetables. “Your fridge is the first place you go in the morning and the last place at night,” says Lee.

　　Ever wonder why a 1.9-meter man and a 1.6-meter woman have to cook meals on counters（工作台）of the same height. “The height was decided over 50 years ago, according to the height of ordinary women,” says Jane Langmuir, an expert of cooking machines. “But times have changed. We have made a new counter where you press a button and it moves to whatever height you want.” At the same time, Ted Selker at MIT's Counter lab has made the dishmaker which lets you make dishes and bowls out of plastics at home. After each meal, the dishes are changed straight back into plastics.

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A．have a recycling system built in the wall

B．get up early to start your cleaning system

C．use your fridge to give orders to a cleaner

D．leave the work to a kind of cleaning machine

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A．We will eat something in the fridge from the morning to the evening.

B．We can surf the Internet and check our e-mails from it.

C．We can buy vegetables and watch TV from it.

D．We will have some fridges in our homes.

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A．people will have more and more time enjoying themselves

B．future kitchens can provide all the energy for our life every day

C．the fridge can be found in the center of a future house

D．people must be expert at computers to use these inventions

　　The bicycle is one of the simplest（最简单的）yet most useful inventions in the world. What is most surprising is that it was not invented earlier, ___1___ the great inventor Leonardo da Vinci had drawn pictures for bicycles and also for flying machines and some other things. Those things were not produced ___2___ long after he died.

　　A person riding a bicycle use ___3___ energy（能量）to make the bicycle move, and there is no pollution at all when you are riding. Even so, developed ___4___, most people don't travel to work by bicycle. It is not because the bicycles are expensive or people feel ___5___ if they ride to work. It's because ___6___ cars on the roads becomes larger. It certainly becomes ___7___ to ride a bicycle. As a result, more people put their bicycles away and go to work ___8___ their cars and, in this way, the situation（情形）is made more serious. ___9___ the best way to make riding safer and more popular is to create paths（开设通道）only for bicycles, and to make ___10___ so difficult and expensive for drivers to take their cars into the city that they will go back to use their bicycles.

　　In some countries, people usually eat rice. In others, people eat flour every day, even every meal. Many people usually eat meat, fish and vegetables. But some people don't eat some kinds of meat. Muslims（穆斯林）do not eat pork.

　　Some people only eat fruit and vegetables. They don't eat meat or fish or anything that comes from animals. They eat only food from plants. Some people say that food from plants is better for us than meat. But meat and fish can also give us energy（能量）and nutritive elements（营养元素）. And most sportsmen eat meat and fish.

　　We live in the“computer age.”Just 42 years __(1)__ computers couldn't do much. They were very big and expensive. They used a lot of energy（能量）. Only __(2)__ people were interested __(3)__ them. Today computers are smaller and cheaper. They can do __(4)__ difficult work.

　　Computers become important __(5)__ many reasons. They work faster than man and make fewer mistakes. They can“remember”much information. A computer can do millions of problems __(6)__ a few seconds. A person might __(7)__ years to work out so many problems.　　People now use computers in nearly every kind of work. Computers are very useful and the use of computers __(8)__ growing. More computers mean more job for people, because people __(9)__ to run（操作）and mend them.