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Nowadays our life is getting more convenient because of more and more smart inventions.So in the near future，which new inventions will probably appear？
Solar（太陽能的） paint.As renewable （可再生的） energy，solar power will be widely used，but the challenge is how to reduce the cost.The invention of solar paint will solve the problem.This kind of special paint is used for taking in sunshine and turning it into useful energy.
A smart coat.People usually choose different clothes to wear in different seasons，Now scientists are trying to develop a kind of coat for all seasons.A smart system hidden in the coat can change the temperature inside according to the weather condition outside，making you feel warm in cold winter and cool in hot summer.
Intelligent home appliances（電器）.Although many of our home appliances are smart，they can't be rally connected to each other.So imagine one morning the window will be opened by itself after you get up，and that on your way home，the air conditioner（空調(diào)） has been turned on to make your house cool or warm.
3 D food printing machine.If you hate cooking，buy one 3 D food printing machine.The future invention can be used to produce all the food you are imagining.What's more，this kind of food will be as delicious and healthy as that human cooks make.It will be a pretty useful invention.
（1）Why is our life getting more convenient？
Because of more and more smart inventions.
Because of more and more smart inventions.
（2）How many kinds of new inventions are mentioned in the passage？
Four.
Four.
（3）Which kind of invention will help us to own a more comfortable home？
Intelligent home appliances.
Intelligent home appliances.
（4）What can make you feel warm in cold winter and cool in hot summer？
A smart coat.
A smart coat.
（5）How will the food produced by the 3 D food printing machine be？
It will be as delicious and healthy as that human cooks make.
It will be as delicious and healthy as that human cooks make.
