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A humanoid robot can transmit(传输) video and touch sensations to a person wearing special gloves and a virtual reality(VR) headset hundreds of kilometers away, offering a way for people to attend events without traveling.

The iCub 3 robot is a 52-kilogram and 125-centimetre-tall robot with 54 points of articulation(关节点) across its body. Its head contains two cameras where a human's eyes would be and an Internet-connected computer where the brain would go. Along with the cameras, sensors covering its body send data to the robot's "brain". These sensations are then copied on a suit and VR headset worn by a remote human operator.

When the operator reacts to what they see and feel, the suit's sensors pick up the movements and the robot matches them. "The key is to translate every signal and bit of numeric data that can be sent through the network," says Stefano Dafarra, who is part of the iCub 3 team. There can be a small delay of up to 100 milliseconds to collect and transmit the visual footage, but the operator can improve this by moving slightly slower than normal.

The team has demonstrated the robot at the Venice Biennale, where it wandered through an exhibition while its operator stood 290 kilometers away in Genoa.

Dafarra hopes people will use iCub 3 to attend events remotely, reducing the need to travel. "But at present, a fall could be hugely damaging to the robot, and it's uncertain whether it could stand up again on its own," he says.

"iCub 3 is an interesting robot and has clear advantages over the previous version," says Jonathan Aitken, whose laboratory owns a prior version of the robot. However, he is disappointed that the team wasn't clear in its research about the data transmission requirements of the new version of the robot. "It would be good to know just how much data was required, and what the upper and lower bounds were," he says.

I am an ecologist from Zimbabwe, but I've been based at the National University of Lesotho in Maseru for more than 13 years. Lesotho is a mountainous inland kingdom in southern Africa. Its high-altitude(高海拔的) wetlands support the Lesotho Highlands Water Project, which delivers water to the Vaal River System in South Africa, generating both income and electricity for Lesotho.

I study the ecological balance that keeps those areas functioning properly: The wetlands trap water when it rains and release it gradually during dry periods. An important part ofthis is to map the plants, animals and general environmental conditions, and how they change over time.

One of our team projects monitors the soundscapes of those areas to identify the animals that live there. We put sensitive recording equipment in the field for weeks at a time. This is of great help because, although that site is just 180 kilometers from my university in the capital of Lesotho, it can take up to four hours to drive there.

The data we gather are huge, and although we do listen to the recordings, we mainly use software to help us analyze the data. We want to compare our recordings between seasons, between dawn and dusk (晨昏) and between day and night, to understand the rhythms of the ecosystem. We also compare our recordings from different wetland types. High-altitude areas are easier to be affected by climate change and, in my view, it is the greatest threat those protected wetlands face.

Listening to the recordings makes me happy because I enjoy hearing a variety of sounds, especially the singing of different birds. In a small country like Lesotho, there are so many knowledge gaps to fill-it's one of the benefits of being a researcher there. I hope that in the future some of you in this classroom will contribute to this as well.

Four Best Classic Books for You to Read

If you've always wanted to tackle the classics but never known where to begin, we've got you covered. We've selected four best classic books for you to read.

The Man Who Would Be King by Rudyard Kipling

This short novel tells the story of two British men visiting India under Britain's control. The men trick their way to a remote region where one of them comes to be respected as King. A tale warning against letting things go to your head, this funny story has been made into a classic film starring Michael Caine and Sean Connery.

Midnight's Childrenby Salman Rushdie

Born in the first hour of India's independence, Saleem Sinai is gifted with the power of an extraordinary sense of smell. He soon discovers that there are 1,001 others with similar abilities, who can help him build a new India. The winner of the Booker prize in 1981, Salman Rushdie's groundbreaking novel is a great achievement of magical realism. This great success was followed by his another novel Shame(1983).

A Christmas Carol by Charles Dickens

If you're not familiar with Dickens, his evergreen Christmastime classic is the perfect introduction. It's a slim 104-page book - a true Christmas surprise from an author with a tendency towards the tome(大部头书) like his Great Expectations, which is another classic! It's the perfect book for you to read in winter just when you want to feel that warm holiday atmosphere.

The Heart Is a Lonely Hunter by Carson McCullers

Meet John Singer, a deaf and mute (哑的) man who sits in the same café every day. Here, in the deep American South of the 1930s, John meets various kinds of people and acts as the silent and kind keeper of their stories -right up until an unforgettable ending that will blow you away. It's hard to believe McCullers was only 23 when she wrote this classic.

The sun was already beginning to sink. The air was somewhat bitter. It was Robert's 12th birthday. But Robert was walking home alone with his eyes focusing on his worn-out shoes.Kids after school were riding by in twos and threes, ringing their bicycle bells merrily. Robert didn't raise up his head, but he knew clearly that those guys were wearing big smiles on their faces, and that the strings of their bike wheels were shining in the golden sunlight. "How lucky they are!" Robert thought to himself. He admired everyone who had his own bike. He had dreamed many times that he was one of those who were on their bikes to and from school. He really wanted a bike, especially as a gift for his 12th birthday. However, Robert was clear that his family couldn't afford it. His parents worked hard only to meet their daily life need.Fortunately, the family lived happily together regardless of the poor condition. Robert should be satisfied with it. But he just couldn't help feeling sad about not being able to own a bike.

Soon the sun disappeared from nowhere and the street lamps were on, casting Robert's figure on the ground. Looking down at his moving shadow, Robert stopped his steps suddenly. He stretched out(伸出) both of his arms with his hands holding something tightly, and then raised his right leg and left leg in turn to push himself forward. Definitely, the figure on the ground did as Robert did. It seemed that he was riding a bike. A brand new black handsome bike! A bike that Robert had been dreaming of. The imagination excited and delighted Robert a lot. He sped up his imaginary bike towards his home happily. The air became sweet and gentle.

注意：

1.续写词数应为150 左右；

2.请按如下格式在答题卡的相应位置作答。

When Robert got home, the house was dark and it seemed nobody was there.

Robert rushed excitedly to the yard only to find an old gray bike.

1.调查时间、主题、对象；

2.调查结果描述和分析；

3.简单评价。

注意：

1.写作词数应为80左右；

2.请在答题卡的相应位置作答。

杰夫知道他第二天会很累。

沿途我们看到很多人在唱歌、跳舞、开心地大笑。

我们应该要找到完美的人选。

杨利伟是第一个进入太空的中国宇航员。

赛龙舟是端午节最令人兴奋的部分。