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When you're not at home, many worries may start to crowd your mind. Did I turn the coffee maker off?

Did I lock the door? With a smart home, you can keep all of these worries off.

A smart home is a home with a communication network. This network connects devices (装置), such as lights and TV sets, and allows them to be controlled from far away through electrical wiring, mobile phone communication or WiFi over the Internet.

More and more people may start to consider owning a smart home, because it makes life much more convenient. It can help keep your room at a certain temperature. It can record what happens inside the home and send the video to your phone. When you are on vacation abroad, you can use a smart home controller to switch on or off the electricity when necessary. Some smart homes can receive a visitor, allowing him to come in and offering him a drink. They can even feed the cat and water the plants.

Besides, smart homes are easy to fix. Most smart home technology and devices are wireless and can be set up with a minimum of tools, using only the guiding information. When a problem appears, you can deal with it yourself without paying a professional.

However, for home-users, the smart home technology is far from perfect. It can be rather expensive to own the technology and the devices. Also, because the smart home system (系统) allows its owner to get home information from anywhere, it leaves the home easy to be attacked by hackers (黑客)，who may secretly use or change the information in the system.

Now, many scientists are excited at the future of smart home technology. Imagine being able to get fashion advice from your mirror, or receive food shopping suggestions from your refrigerator, while there are others who worry that those smart devices will make people lazier and lonelier. Whatever it is, one thing is for sure — smart home technology will change the way we live and work.

                                                                                             Make the right choices

    What is life's greatest gift?____Choice is the ability to select one course of action from a set of alternatives to achieve a goal. What is so great about choice? It transforms us from dumb animals into artists. Each of us becomes another Michelangelo. Choice becomes nothing other than the tool we use to sculpt (雕刻)our life. The tool doesn't come free, however, for the price of choice is responsibility.____The reward is happiness.

    Life is not still. It is a flow.____We constantly need to monitor where we are on our journey. We need to ask questions: Am I moving closer to my goals? If not, what corrective measures can I take? What action will I take now to readjust myself to my goals? Choice is power. Choice is at the heart of life. It is the creative power of life.

    ____And your life becomes more convenient or comfortable because of them. For example, you decide which stores to shop at and which gas station to go to. But the decisions that we make to sculpt our lives are far more important than deciding where to shop. The more we appreciate the difference between minor and major decisions, the greater the probability that we will experience happiness and fulfillment.

    All chess lovers realize that it isn't necessary to win to enjoy the game. The pleasure is in the playing. Life is like a chess game.____

A. It is free will or choice

B. You have to make choices every day

C. Make the best moves you can under the circumstances

D. But when we accept and carry it out, we get a great return

E. Every choice we make leads us closer to or farther from our goals

F. Life is full of hard choices, and the bigger they are, the harder they get

G. Choose to carry out responsibilities not because you have to, but because you want to

1979年开始，广东和福建两省走在了全国的前面，这是因为（   ）