A robot cannot think or do things alone. People use a computer to control it. Today, robots are becoming useful in our lives. They can help us to save a lot of time and work. A robot can do the same work for 24 hours, and yet, it does not complain or get tired. In the US, people use robots as security guards in some important places. These robots can listen for certain noises and send signals for help if there’s trouble or danger. In Japan, people use robots in factories to build cars. In the...
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A robot cannot think or do things alone. People use a computer to control it. Today, robots are becoming useful in our lives. They can help us to save a lot of time and work. A robot can do the same work for 24 hours, and yet, it does not complain or get tired. In the US, people use robots as security guards in some important places. These robots can listen for certain noises and send signals for help if there’s trouble or danger. In Japan, people use robots in factories to build cars. In the future, scientists will design many types of intelligent robots. Their robots will help us to do many more complicated things. However, some people do not like robots. They fear that one day robots will be too powerful.
1. Why do people use a computer to control a robot?
A. Because it is very useful. B. Because it is too expensive.
C. Because it cannot think or do things alone. D. Because it can save time and work.
2. Which of the following statements is NOT TRUE according to the text?
A. People use computers to control robots. B. Robots do not get tired of working.
C. Robots cannot do the same work for 24 hours.
D. People use robots as security guards in some important places in the US.
3. The word “it” in the text refers to.
A. a robot B. work C. the US D. a computer
4. In Japan, people use robots in factories to_______.
A. do many more complicated things B. build cars
C. guard important places D. listen to certain noises
5. Some people fear that one day robots _______.
A. will have too much power B. will do complicated things
C. will be busier than humans D. will make too much noise
Nếu cả 3 bạn cùng làm thì 1 giờ làm được là :
(1/12+1/10+1/15):2=1/8(công việc)
Nếu một minh peter làm thì 1 giờ làm được là:
1/8-1/10=1/40(công việc)
1 giờ làm được 1/40 công việc vậy 40 giờ peter sẽ làm xong công việc