Wang Zhonglin started playing table tennis only four years ago. But last year, he and other researchers came up with a clever way to up their game; Build a smart table.
Now they've built a prototype (样品). It can measure where a ball lands, how fast the ball's going, where it's headed and the angle it was traveling. The table can do that because its special wood surface forms the top layer (层) of a novel self-powered sensor. The data it acquires could guide players to perform better.
Importantly, the new smart table won't need a battery to detect the ball. When a ball hits the wood, it sets off a chain of events that can both produce a small electric current(电流) and record measurements of the ball's behavior.
What makes the new game table truly unique is its use of wood as one of the layers because wood can produce electricity by rubbing against it. But Wang's group realized they couldn't rely on wood that comes directly from a tree. It's too hard and too easily broken. They needed a kind of wood that could bend. So they boiled the wood in chemicals for seven hours. Then they dipped the wood in boiling water. Once it came out of the boiling baths, the wood bent easily.
The scientists then cut the treated wood into small squares. Each measured just 1.8 inches on a side. Those squares became the top layer. Beneath this wood, they added a layer of metal to conduct electricity. They attached that layer to a metal wire. Then, instead of using a table-tennis ball, they hit the surface with a type of hard plastic. When it registered an electric current, they moved on to building a test table.
“It is amazing. To me, self-powered sensors of wood is the first move toward using energy harvesting and sensing in sports," said Askar, an engineer in Canada. And it need not end with table tennis, he added.
1.What can we know about Wang's invention?
A.Its battery lasts very long. B.It sells well in the market.
C.It can accelerate the ball's speed. D.It can judge the ball's direction.
2.Why did Wang use wood surface?
A.It is easy to get. B.It can produce electricity.
C.It is hard enough. D.It is environmentally friendly.
3.What was the wood like after being treated?
A.It bent easily. B.It shrunk greatly.
C.It broke easily. D.It became harder.
4.What can be inferred from Askar's words?
A.Sports meets will end with a table tennis match.
B.The technology will be used in other sports.
C.Table tennis isn't the first to use self-powered sensors.
D.The table tennis ball will be self-powered in the future.
高三英语阅读理解中等难度题
Wang Zhonglin started playing table tennis only four years ago. But last year, he and other researchers came up with a clever way to up their game; Build a smart table.
Now they've built a prototype (样品). It can measure where a ball lands, how fast the ball's going, where it's headed and the angle it was traveling. The table can do that because its special wood surface forms the top layer (层) of a novel self-powered sensor. The data it acquires could guide players to perform better.
Importantly, the new smart table won't need a battery to detect the ball. When a ball hits the wood, it sets off a chain of events that can both produce a small electric current(电流) and record measurements of the ball's behavior.
What makes the new game table truly unique is its use of wood as one of the layers because wood can produce electricity by rubbing against it. But Wang's group realized they couldn't rely on wood that comes directly from a tree. It's too hard and too easily broken. They needed a kind of wood that could bend. So they boiled the wood in chemicals for seven hours. Then they dipped the wood in boiling water. Once it came out of the boiling baths, the wood bent easily.
The scientists then cut the treated wood into small squares. Each measured just 1.8 inches on a side. Those squares became the top layer. Beneath this wood, they added a layer of metal to conduct electricity. They attached that layer to a metal wire. Then, instead of using a table-tennis ball, they hit the surface with a type of hard plastic. When it registered an electric current, they moved on to building a test table.
“It is amazing. To me, self-powered sensors of wood is the first move toward using energy harvesting and sensing in sports," said Askar, an engineer in Canada. And it need not end with table tennis, he added.
1.What can we know about Wang's invention?
A.Its battery lasts very long. B.It sells well in the market.
C.It can accelerate the ball's speed. D.It can judge the ball's direction.
2.Why did Wang use wood surface?
A.It is easy to get. B.It can produce electricity.
C.It is hard enough. D.It is environmentally friendly.
3.What was the wood like after being treated?
A.It bent easily. B.It shrunk greatly.
C.It broke easily. D.It became harder.
4.What can be inferred from Askar's words?
A.Sports meets will end with a table tennis match.
B.The technology will be used in other sports.
C.Table tennis isn't the first to use self-powered sensors.
D.The table tennis ball will be self-powered in the future.
高三英语阅读理解中等难度题查看答案及解析
On May 5, 2005, at ________ World Table Tennis Championship, Kong Linghui and Wang Hao won the gold medal in men's doubles with ________ score of 4: 1.
A. a; a B. 不填; the C. a; 不填 D. the; a
高三英语单项填空中等难度题查看答案及解析
On May 5, 2005, at _________ world Table Tennis Championship, Kong Linghui and Wang Hao won the gold medal in men’s doubles with ________ score of 4: 1.
A. a; a B. 不填; the C. a; 不填 D. the; a
高三英语单项填空困难题查看答案及解析
My sister used to be fond of ____ table tennis.
| A．play | B．played | C．playing | D．to play |
高三英语单项填空简单题查看答案及解析
Where to Drink
Cafe San Bernardo
Join table-tennis and pool-playing port. Cafe San Bernardo has been running since 1912.
The Villa Crespo dive bar also offers up table football for ￡4 an hour. Service is efficient; with last orders at 5 am. The daily happy hour between 6 pm and 9 pm includes 60 minutes playing your game of choice, plus a half-bottle of red wine and a corn pie, for ￡9.
●Avenue Corrientes 5436, Villa Cresp09 54 11 4855 3956, ca fesanbernardo. com
M Salumeria & Enoteca
Trading only in wine with a story, sommelier(侍酒师）Mariana Torta chooses new ways on a daily basis, and keeps a list of around 250 labels. There's no wine menu-simply take your bottle from the shelf.
●Open 11:00 am-11:30 pm, El Salvador 5777, Palermo Hollywood, 54 11 4778 9016, on Facebook
Negro Cueva de Cafe
Coffee has found its place in Buenos Aires. While LAB: Tostadores, The Shelter and Coffee Town are famous new places, Negro Cueva de Cafe is one of the best downtown* It serves Ecuadorian, Colombian and Brazilian beans9 and its attracting cakes include croissant.
●Open 9:30 am-7:00 pm, Suipacha 637, Microcentro, 54 11 4322 3000, negrocuevade-cafe. com
La Calle
Head to the Niceto Vega address and you'II be faced with a pizza. Don't worry, it's the right place. La Guitarrita is the front to "hidden" bar La Calle. Order the house cocktail, spe- cial candy, and prepare to sing until dawn with a high-energy young crowd.
●Open 8:00 pm-2:00 am, Niceto Vega 4942, Palermo Soho, 54 11 3914 1972, on Face- book
1.Which number should you call if you want to do some sports?
A. 54 11 4855 3956. B. 54 11 4778 9016.
C. 54 11 4322 3000. D. 54 11 3914 1972.
2.When can you go to M Salumeria & Enoteca?
A. All day. B. 1:00 am
C. 10:00 am D. 3:00 pm
3.What makes La Calle different?
A. Its having special candy. B. Its having no wine menu.
C. Its allowing you to play games. D. Its opening for the longest time.
4.What is the author's purpose in writing the text?
A. To show wine culture. B. To introduce some wine bars.
C. To help people choose drinks. D. To show how to enjoy yourself.
高三英语阅读理解中等难度题查看答案及解析
19.To play table tennis and to go swimming_____good for character training
A is B．are C was D were
高三英语单项填空简单题查看答案及解析
— How is your table tennis these days? Still playing?
—______. I just don't seem to find the time these days.
A. That's right B. No, not much
C. That's great D. Don’t worry
高三英语单项填空中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.What does the man like to do after work?
A.Play table tennis and golf, and go for a run.
B.Play tennis and golf, and go fishing.
C.Play tennis and golf, and go for a run.
2.How often does the man play golf?
A.About once a week. B.About once a month. C.About once a year.
3.What time will the two speakers meet at the clubhouse?
A.At 1:30. B.At 1:13. C.At 2:30.
高三英语长对话中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.What sport did the woman like to play in the past?
A. Yoga. B. Table tennis. C. Volleyball.
2.Which is NOT the reason for the woman choosing Tai Chi?
A. It requires less intensity.
B. It’s very popular nowadays.
C. It’s related to Chinese culture.
3.What is the essential concept of Tai Chi?
A. How to balance your life.
B. How to use the least to achieve the most.
C. How to defeat someone stronger than you.
4.What benefit docs Tai Chi bring to the woman?
A. She feels easier to concentrate.
B. She becomes more energetic.
C. She gets a good appetite.
高三英语长对话中等难度题查看答案及解析
The boy asked his mother ________ go out to play table tennis.
A. that he could B. if he could
C. if could he D. whether could he
高三英语单项填空中等难度题查看答案及解析