[题目] 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 prototy 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】 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.

【答案】

【1】D

【2】B

【3】A

【4】B

【解析】

这是一篇说明文。文章主要介绍了一种新的发明——智能乒乓球桌面。它可以感知乒乓球的速度、方向等，从而帮助人们提高球技。

【1】

细节理解题。根据第二段中的“It can measure where a ball lands, how fast the ball's going, where it's headed and the angle it was traveling.(它可以测量球在哪里落地，球速多快，前进的方向和穿行的角度)”可知，智能乒乓球桌能够感知球的方向。故选D项。

【2】

细节理解题。根据第三段最后一句“When a ball hits the wood, it sets off a chain of events that can both produce a small electric current(当球碰到木头时，它可以发出一连串可以产生电流的事件)”可知，科学家之所以使用木头，是因为木头在敲击下会产生电流。故选B项。

【3】

细节理解题。根据第四段最后一句“Once it came out of the boiling baths, the wood bent easily.”可知，经过处理过的木头变得容易弯曲。故选A项。

【4】

推理判断题。根据文章最后一段尤其是最后一句“And it need not end with table tennis, he added.”（他补充说，它不需要结束于乒乓球。）可知，Askar认为木头的自供电传感器是在运动中使用能量收集和传感的第一步，不会结束于乒乓球领域，以后会逐渐应用到其他运动中。故选B项。

练习册系列答案

口算达标天天练系列答案

小学毕业升学复习必做的18套试卷系列答案

(1)描述生活上发生的变化(两个方面)；

(2)这些变化给人们带来的好处；

(3)相信未来生活更加美好。

注意：(1)词数不少于100；

(2)内容充实、行文连贯；

(3)题目已给出，不计入总词数。

Changes in Our Life

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

By Li Jin

【题目】—If you don't know how to deal with the problem, why not consult with Jim?

—Good idea! ________ after all.

A.Great minds think alikeB.Two heads are better than one

C.Every coin has two sidesD.A bird in the hand is worth two in the bush

【题目】假定你是李华。端午节即将来临，请给你的英语外教老师Jack写封邮件，介绍这一中国传统的节日。内容包括：

1. 节日由来；

2. 庆祝方式；

3. 你的看法。

注意：1. 词数100左右；

2. 可以适当增加细节，以使行文连贯。

3. 参考词汇：端午节the Dragon Boat Festival；农历the lunar calendar

Dear Jack,

Yours,

Li Hua

【题目】—Reading is the best way to kill time on the train.

—________ I never go traveling without a book.

A.You are joking.B.I don’t think so.C.That’s true.D.Don’t mention it.

【题目】假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意： 1.每处错误及其修改均限一词。

2.只允许修改10处，多者(从第11处起)不计分。

Thomas, a famous writer, who lives just next door to me. He is always ready to help others, but he enjoys great popularity in the neighborhood.

He often teaches us how to write stories and encourage us to try writing something about myself. He said he was born in the poor family. As a kid, he has a dream to become a famous writer. He worked hardly and overcame a great many difficulty. At last, he entered a famous university and majored Chinese language and culture. Now, his works is very popular at home and abroad.

【题目】 "Like a monster, it destroys everything. " That's how one school girl described a tsunami（海啸）.

On Dec. 26, 2004, a magnitude-9. 1 earthquake in Indonesia set off a massive tsunami. It killed more than 230,000 people across four countries and cost an estimated $ 10 billion in damage.

Nov. 5 is World Tsunami Awareness Day and at the United Nations Wednesday, disaster risk reduction was high on the agenda.

"What I can tell you is that the tsunami wave cannot be stopped," said Bulgarians U. N. Ambassador Georgi Velikov Panayotov. He was on vacation in Thailand in 2004 and survived the tsunami. "What we can do is build early warning systems and, of course, educate the population about the damaging power of the tsunami wave," he said.

On March 11, 2011, a magnitude-9 earthquake rocked northeastern Japan triggering a fierce tsunami that also damaged the Fukushima Daiichi nuclear plant, south of Sendai.

"When the big earthquake hit Japan in 2011, people thought that we were prepared for it," said Japan's U. N. Ambassador Koro Bessho. "It caused severe damage. We had dams； we had drills. However, we had been counting on something that hits every 100 years and the earthquake was of the size of possibly every 500 years or thousand years, he said.

These two events sent the countries of the region into overdrive to review and improve disaster preparedness. In 2015 the Sendai Framework for Disaster Risk Reduction was born. It aims to help create a better understanding of disaster risk and improve preparedness for an effective response.

Indonesia is made up of thousands of islands which are disaster-prone（易受灾地区）. Willem Rampangilei, head of the Disaster Management Agency of Indonesia, said his government now has plans for every disaster-prone city.

Countries at risk are also expanding their education programs. Children from an early age are taught how to react in case of a tsunami and then go with their classmates to higher ground away from coastal areas to avoid the walls of water the tsunami triggers.

【1】What does Georgi Velikov Panayotov mainly talk about?

A.The general features of a tsunami.B.Ways for humans to face a tsunami.

C.His suffering in the 2004 tsunami.D.The loss caused by the 2004 tsunami.

【2】In Koro Bessho's opinion, why did the 2011 earthquake cause severe damage?

A.It caused a fierce tsunami.B.It destroyed a nuclear plant.

C.The size was beyond expectation.D.There was no effective defense system.

【3】What common belief pushed different countries to take action to face a coming tsunami?

A.Children should be protected by all means.

B.The improvement of preparedness can reduce damage.

C.Proper response in case of a tsunami can save one's life.

D.Stronger measures should be taken in disaster-prone areas.

【4】Which can be the best title of the text?

A.World Tsunami Awareness Day

B.Nations Attacked by Massive Tsunami

C.The Unpredictable and Destructive Disaster

D.Learn from Disasters to Prevent Future Ones

【题目】阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Jingdezhen porcelain(瓷器)is Chinese porcelain produced in or near Jingdezhen in southern China. Jingdezhen has produced porcelain 【1】 (century)ago. And the town 【2】was named Jingdezhen by Emperor Zhenzong of the Northern Song Dynasty became a major kiln(窑)site around 1004.During the period, the 【3】(produce)of porcelain in this area first became 【4】(know).By the 14th century it had become the largest centre of producing Chinese porcelain, which remained in the following times. In the Ming Dynasty, official kilns in Jingdezhen 【5】(control)by the emperor, making quality porcelain in large quantities for the emperor to give abroad as gifts. As a result, the town was 【6】(close)linked to the world.

Although being a remote town in a hilly area, Jingdezhen is near the quality porcelain stone and forests which can provide plenty of wood for the kilns. It also has 【7】river flowing from north to south, 【8】(benefit)the transport of the fragile objects.

Jingdezhen has produced a great variety of 【9】 (value) porcelain. As a result, the town is famous 【10】 the “Porcelain Capital”. One type of its well-known high quality porcelain object is the blue and white porcelain from the 1330s.

【题目】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Today we know Antarctica as an extreme environment 【1】 (contain ) ice and snow. But new research provides evidence that the area was very different in the past, 【2】 was found inside a piece of Earth sediment (沉淀物) gathered by researchers 【3】 under the seafloor off the coast of Antarctica.

In the sediment, they 【4】 (find) forest soil estimated to be about 90 million years old and this would have been in the Cretaceous Period, when dinosaurs were the main land 【5】 (animal). Johann Klages, who was the lead writer of a study on the findings 【6】 (publish) in the journal Nature, said the sediment collection was from 【7】 depth of about 30 meters below the ocean floor. Klages said an examination showed that the material formed on land, not in the ocean.

The Earth has experienced in the past and is 【8】 (current ) undergoing today. The researchers said that the rainforest environment in Antarctica was especially surprising, because each year the area 【9】 (experience) a four-month polar night when there is no sunlight to fuel plant life. Klages said no ice sheets were present during the time, but 【10】 (season) snowfall was likely.

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