2 . Holding the large and heavy “brick” cellphone he’s credited with inventing 50 years ago,Martin Cooper talks about the future.

Little did he know when he made the first call on a New York City street from a heavy Motorola prototype(原型)that our world would come to be encapsulated on a sleek glass sheath where we search，connect,like and buy.

Cooper says he is an optimist. He believes that advances in mobile technology will continue to transform lives but he is worried about risks smartphones pose to privacy and young people.

“My most negative opinion is we don’t have any privacy anymore because everything about us is now recorded someplace and accessible to somebody who has enough intense desire to get it,” the 94-year-old said in an interview in Barcelona at MWC, the Mobile World Congress, the world’s biggest wireless trade show, where he was getting a lifetime award.

Cooper sees a dark side to the advances, including the risk to children. One idea, he said, is to have“various Internets intended for different audiences.”

Cooper made the first public call from a handheld portable telephone on a Manhattan street on April 3,1973,using a prototype device his team at Motorola had started designing just five months earlier.

Cooper used the Dyna-TAC phone to famously call his opponent at Bell Labs, owned by AT&T. It was literally the world’s first brick phone,weighing 2.5 pounds and measuring 11 inches.

The call helped kick-start the cellphone revolution (革命).

Cooper said he’s “not crazy” about the shape of modern smartphones. He thinks they will develop so that they’ll be “distributed on your body,” possibly as sensors“measuring your health at all times.”

Batteries, he said, might be replaced by human energy.The body makes energy from food,he argues, so it could possibly also power a phone.Instead of holding the phone in the hand, for example, the device could be placed under the skin.

Are all changes good?

It is a commonly held belief that as people get older, they become resistant to change. Their complaints that things used to be better in the past or     1     some new development is no good can be dismissed as the unavoidable thoughts of people who    2     (simple) don't like change and are therefore     3     (able) to see the benefits of progress.

But is this automatically true? Are the views of an older person on a new development always to be disregarded? This would suggest that every new development must be a good     4     and surely that cannot logically be    5     case.

Take    6     (architect) for example. In the 1950s and 1960s, many older British people were highly critical of the new concrete housing blocks that suddenly sprang up in cities,     7     (say) that they were ugly and depressing places to live in. They were     8     (tell) that they were simply being old-fashioned and that they were incapable of appreciating the advantages of these new buildings, which had replaced the streets of small houses that they were familiar with.     9     decades later, these very same blocks were being pulled    10    , as new generations decided they were both ugly and bad for society.

People have lived in cities for thousands of years. Yet even just 100 years ago, more people     1     (live) in the country than in cities. Today, with the population in the world     2     (increase) sharply, more people move to cities for various     3     (reason). For many it is for work or education. Some are     4     (simple) attracted to city life. By the year 2030, it is thought     5     more than sixty percent of the world's population will be living in cities. More and more cities will become megacities (特大城市), and they will     6     (find) in different parts of the world.

Maybe one megacity is not the same as another     7     they do have common problems, such as air     8     (pollute), housing problems, traffic jams and so on. Making these cities work well for every person living in them will be     9     great challenge in the future. However, we do believe when people work together, they can find solutions which will help make these megacities happy, healthy and     10     (excite) places to live in.

5 . Japanese automaker Toyota has announced its “Woven City” plan, which aims to create a “smart city of the future". It will be a “living laboratory” for technologies including self-driving systems, high-speed internet connectivity to link major information and communication systems.

The main streets in Woven City will be divided for different purposes. One part will be used for faster vehicle traffic. Another will be designed for people riding bicycles. The third part will be used for walking. To move people through the city, only fully-autonomous, zero emission Toyota vehicles will be allowed on the roads. In and throughout Woven City, Toyota e-Palettes will be used for transportation and deliveries.

The city will be fully sustainable(可持续的)，with buildings made mostly of wood to cut carbon footprint to the minimum. The rooftops will be covered with solar panels to produce power in addition to power produced by H2 fuel cells. Houses will be equipped with the latest AI technologies, such as in-home robotics to assist with daily work and to check people' s health, Both neighborhood parks and a large central park for recreation and social gatherings are designed to bring the people together.

Toyota plans to populate the city with Toyota Motor Corporation employees and their families, visiting scientists and industry partners. The plan is for 2, 000 people to start, adding more as the ;project develops.

“Building a complete city from scratch, even in a small size like this, is a unique chance to develop future technologies. With people, buildings and vehicles all connected and communicating with each other through sensors, we will be able to test connected AI technology in both the virtual(虚拟的) and the physical areas to maximize its potential,” said Akio Toyoda，president of Toyota Motor Corporation.

Experts say smart cities, like Toyota's“Woven City”，will greatly improve our living conditions.