Robots seem very new to most people. But they have a long history. The _________ one was made by a Greek inventor(发明家) . You may _________ robots in some films. The robots in these _________ are stronger, faster and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring _________. Some people can't look after _________ and robots are used to help them. For example, some people can't see. Many of these people use a _________ to help them move around. This dog is called a guide dog. _________ are making a robot to help them. In the future, robot dogs _________take the place of(代替) these guide dogs.

Robots are also _________ in American hospitals. At one hospital, a robot takes meals __________ the kitchen to the sick people's rooms. It never loses its way because it has a map of the hospital in its computer system(系统) .

Have you ever seen the movie. Big Hero 6 ? Baymax(大白) is a main character in the movie. He’s a friendly big robot that looks After people’s health. If there is a robot like Baymax in our real life, people will get more benefits. The robot will be especially helpful in caring for the old. The health of old people needs greater monitoring and care;.

Scientists in America are now working to make Baymax a really(实现)- Actually. they have already produced some health care robots. These robots provide brain video games to improve people’s memory. The garner can help the old remember things for longer. Besides, these provide special app (应用程序）to help the old manage their health at home. The apps can check the old people’s heart rate (心率) and tell them to take their medicine on lime. The apps can also record their daily activities. Such collected information helps doctors discover the cause of an illness faster and more correctly. But the health care robots aren’t as clever as Baymax yet.

Nowadays, scientists are working on improving the health care robots. They Hope the robots can produce electricity by walking across the floor. If they succeed. batteries will not be needed. They also hope the robots communicate with humans in the daily life so to make people happier and healthier.

Scientists are trying to realize these dreams. Like Baymax, these health care robots may save people’s lives in the future. We are looking forward to them.

Nanotechnology is a new type of science that will be widely used in many fields. Do you want to know more about it?

Imagine: A television screen has the size and thickness of a piece of paper. You carry it around in your pocket and take it out when you want to watch a show. (1) A guitar is so tiny that you can’t see it with human eyes, but you can hear sounds when its strings are pulled.

(2) Nanotechnology is the science, and this kind of science can deal with things in a very small way. It is being studied and developed all over the world. Many scientists say nanotechnology will produce the next industrial revolution（工业革命）.

(3) 也许纳米技术对医学将有最大的影响。 Imagine nanobots in medicine. Thousands or even millions of tiny machines can be sent into the human body with specific tasks. For example, (4) they can be designed to find and destroy cancer cells or viruses（病毒）. Other machines may stay in the human body forever to help organs（器官） that are not working properly.

When could all of these happen? Scientists predict that most of these are possible in the next 30 years. Thousands of scientists around the world are working on these micro-machines. Nanotechnology is just around the corner.

In some science fiction movies, people in the future have their own robots. These robots are just like     46    . They help with the     47    , and do the most unpleasant（使人不愉快的）jobs. Robot     48     are not just trying to make robots look like people. For example, there are     49     robots working in factories. These robots look more like huge（巨大的）arms. They do     50     jobs over and over again. People would not like to do such jobs and would get     51    . But robots will never get bored. In the future, there will be more robots     52     and humans will have less work to do. New robots will have many different     53    . Some will look like humans, and others     54     look like snakes. We will never know what will     55     in the future.

56. 暑假快要到了，请以“My summer vacation plan”为题写一篇100词左右的英语短文，谈谈你在暑假期间读书、锻炼身体、旅游、帮父母做家务等方面的计划。

My summer vacation plan