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181.If a student lacks the
發(fā)布:2024/12/9 12:0:1組卷:63引用:7難度:0.4182.Scientist have many
發(fā)布:2024/12/9 12:0:1組卷:2引用:6難度:0.7183.Houses have been getting progressively "smarter" for decades,but the next generation of smart homes may offer what two Case Western Reserve University scientists are calling an "Internet of Ears".
Today's smart home features appliances,entertainment systems,security cameras and lighting,heating and cooling systems that are connected to each other and the Internet.They can be accessed and controlled remotely by computer or smartphone apps.
But a group of electrical engineering and computer science professors in the Case School of Engineering have been experimenting with a new suite of sensors (傳感器).This system would read not only the vibrations (震動(dòng)),sounds and even other movements associated with people and animals in a building,but also any slight changes in the existing electrical field.
While there still maybe a decade or so away,the home of the future could be a building that adjusts to your activity with only a few small,hidden sensors in the walls and floor without the need for monitoring cameras.
"We are trying to make a building that is able to 'listen' to the humans inside," said Ming Chun Huang,an assistant professor in electrical engineering and computer science."We are using principles similar to those of the human ear,where vibrations are picked up and our algorithms (計(jì)算程序) recognise them to determine your specific movements.That's why we call it the 'Internet of Ears'."
"There is actually a constant 60 Hz electrical field all around us,and because people are somewhat conductive,they short out the field just a little," Huang said."So,by measuring the disturbance in that field,we are able to determine their presence,or even their breathing,even when there are no vibrations associated with sound."
Huang said they have used as few as four small sensors in the walls and floor of a room.
As for privacy concerns,the system would not be able to identify individuals,although it could recognise people's different ways of walking.
(1)What uniqueness does the smart home of the next generation have?
A.It uses the advanced Internet technology.
B.It is controlled remotely by a computer.
C.It features appliances and entertainment systems.
D.It can read vibrations,sounds and movements.
(2)What's the key part of the system in the smart home?
A.The sensors.
B.The vibrations.
C.The electrical field.
D.The monitoring cameras.
(3)Which is the function of the smart home of the next generation?
A.Determining people's presence.
B.Recognising different people.
C.Protecting individuals' privacy.
D.Measuring the electrical field.
(4)What may be the best title for the text?
A.Various Smart Houses.
B.Benefits of Smart Houses.
C.How Do Smart Houses Work?
D.What Are Next Smart Homes Like?發(fā)布:2024/12/9 9:30:1組卷:22引用:1難度:0.7184.I left England for Sydney in September.It was a career move for my husband,and our 20-year-old daughter was feeling adventurous and decided to come,too.However,just before leaving England,my 79-year-old mother suffered a stroke(中風(fēng)).Being strong and independent,she continues to live at home with the help of social services.But she couldn't look after the garden.I thought how wonderful it would be if there was an organisation offering volunteer help.Friends asked me what I planned to do in Australia,and I told them I would be looking for a volunteer position with a gardening charitable organisation.Imagine my surprise when I found just the organisation I had been looking for-Easy Care Gardening (ECG)!
There are several reasons why I volunteer for ECG.Firstly,as a newcomer to Australia I meet many great people who,like me,volunteer some of their time.We cover a large age range,but all love gardens and helping others.
Secondly,through working with ECG I have been lucky enough to explore Sydney's North Shore that I might not have had the opportunity to visit otherwise.
Finally,there are all those wonderful people we call "clients(客戶(hù))",but are more like friends when we visit them often and tend their gardens.What great people I have met,and the stories they have to tell-the family histories,where they come from and the reasons for immigrating to Australia.I find it a privilege to have access to private gardens which,in many cases,have been the joy of their owners for many years.Each one is individual and reflects the character,needs and the history of each family.Indeed,the gardens reflect the multicultural and historical background of Sydney.
(1)Why did the author move to Sydney?
A.Her husband would work there.
B.She planned to volunteer there.
C.She was very keen on adventures.
D.She had to look after her sick mother.
(2)What made the author choose to be a gardening volunteer?
A.The popularity of ECG.
B.The tips of her friends.
C.Her own experience.
D.Her gardening skills.
(3)What do the volunteers at ECG have in common?
A.They make friends with their clients.
B.They like to explore Sydney's North Shore.
C.They are of similar ages and backgrounds.
D.They are kind-hearted with the same interest.
(4)What does the underlined word "one" in Paragraph 4 refer to?
A.Client.
B.Garden.
C.Reason.
D.Joy.發(fā)布:2024/12/9 9:30:1組卷:9引用:1難度:0.5185.She showed the visitors around the museum, the construction
發(fā)布:2024/12/9 8:30:2組卷:1引用:3難度:0.8186.I had so much
發(fā)布:2024/12/9 7:0:1組卷:13引用:2難度:0.7187.This medicine called artemisinin soon became a standard treatment for malaria to save people's life.此句中謂語(yǔ)動(dòng)詞為_(kāi)______.( ?。?/h2>
發(fā)布:2024/12/9 4:30:2組卷:19引用:2難度:0.7188.How can you
發(fā)布:2024/12/9 4:30:2組卷:1引用:2難度:0.7189.After the plane crash,what the
發(fā)布:2024/12/9 4:0:2組卷:1引用:1難度:0.9190.The customers could select the
發(fā)布:2024/12/9 3:30:2組卷:28引用:5難度:0.7