Imagine this: you and your friend are on a video call. He or she picks up a book and you feel like you are holding the book as well. You can shake hands or give your friend a high five, even though you are in different places.

A pair of special gloves might make this a reality. Researchers at the University of New South Wales, Australia,   have made gloves that can recreate the sense of touch. They call this haptic device (触觉装置) a “soft skin stretch device” (SSD).

The SSD works like this: One user’s gloves create 3D force signals when they touch something. The signals are sent to the other user’s gloves, which vibrate (震动) to create the same force that the first user is experiencing. This allows the second user to experience the same sense of touch.

The SSD allows you to feel force, vibration and movement. “It is like wearing a second skin.” said Thanh Nho Do, one of the researchers who created the gloves.

Haptic technology is already being widely used. For example. the trackpads (触控板) in notebook computers use vibration to make it feel like you are clicking a real mouse. However, it is difficult to recreate the sense of touch in virtual (虚拟的) environments or remotely, according to Mai Thanh Thai, lead researcher of the SSD project. The SSD is special because it has a high level of sensitivity (灵敏度) even when it is used continuously. This makes it feel more realistic.

The SSD could be used in medical practice. Two doctors in separate places could work together during an operation—one touches the patient with the SSD while the other doctor feels the same sensation and completes the real operation.

假设你的好友李华上周给你写了一封信，信中分享了他上周科学课后对于人工智能（AI）的一些观点，并表达了他对人工智能即将代替人类的担忧。请根据以下提示写一封回信，并谈谈自己的看法。

I’m glad to receive your letter and get a chance to discuss AI with you.

I’m looking forward to your reply.

Yours,

Mike

下周一下午轮到你在英语课上做课堂报告, 你打算把你爸爸最近网购的音乐机器人（music robot）介绍给同学们。下图是关于这个音乐机器人的广告, 请你根据所提供的信息写一份发言稿。

Good morning, everyone! Here, I’d like to introduce the music robot my father bought online. _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________