1 . In 1901, H. G. Wells, an English writer, wrote a book describing a trip to the moon. When the explorers landed on the moon, they discovered that the moon was full of underground cities. They expressed their surprise to the “moon people” they met. In turn, the “moon people” expressed their surprise. “Why,” they asked, “are you traveling to outer space when you don’t even use your inner space?”

H. G. Wells could only imagine travel to the moon. In 1969, human beings really did land on the moon. People today know that there are no underground cities on the moon. However, the question that the “moon people” asked is still an interesting one. A growing number of scientists are seriously thinking about it.

Underground systems are already in place. Many cities have underground car parks. In some cities such as Tokyo, Seoul and Montreal, there are large underground shopping areas. The “Chunnel”, a tunnel (隧道) connecting England and France, is now complete.

But what about underground cities? Japan’s Taisei Corporation is designing a network of underground systems, called “Alice Cities”. The designers imagine using surface space for public parks and using underground space for flats, offices, shopping, and so on. A solar dome (太阳能穹顶) would cover the whole city.

Supporters of underground development say that building down rather than building up is a good way to use the earth’s space. The surface, they say, can be used for farms, parks, gardens, and wilderness, H. G. Wells’ “moon people” would agree. Would you?

It's undeniable: Being among the first to try out a new piece of technology is cool. There's the excitement of doing what has never been done before-the feeling that you're living in the future. And when you're the sole member of your social circle with the latest hot gadget, people stare in fascination. They ask you questions. They see you as the holder of powerful, secret knowledge-for a little while, until the next big thing comes along. People tend to underestimate the costs of this temporary coolness, which they pay in more ways than one. Don't fall into the early adopter trap. Don't join the first wave of consumers who invest in the latest media-hyped hardware; instead, wait and see.

To put it frankly, early adoption is a bad investment. First, the earliest versions of devices are not only expensive, they are also the most expensive that those devices will ever be. Companies are presumably attempting to recover the cost of production as fast as they can, and they know that there are serious tech-lovers who will pay a great deal to be first. Once the revenues from early adopters' purchases are safely in their hands, they can cut the price and shift to the next marketing phase: selling the product to everyone else. This is why the cost of the original iPhone dropped about U. S. $200 only eight months after its release. Plus, electronics hardly ever become more expensive because intense competition in the industry puts downward pressure on prices over time. Prices of gadgets will fall shortly after release, and they will likely keep falling. Many new TV models drop significantly in price as little as ten days after hitting the market. Further, electronics rapidly depreciate because they become obsolete (废弃的)so quickly. This means that early adopters pay the maximum price for an item that does not hold onto its value. The resale price of a cell phone or laptop can drop by fifty percent within just a few months.

Speaking of becoming obsolete, those who are first to leap into a new technology risk (三野志) wasting money and time on something that will never catch on. Another good reason to resist the early-adoption temptation is that the first version of a product typically has defects that cost a lot in time and frustration. Such problems are so common with new technology that early adopters are basically unpaid beta testers and troubleshooters. Unless this sounds to you like a fun way to spend your time, don't be among the first users. If you wait to learn what the problems are with a new electronic gadget, you can look forward to a smoother experience—or choose a less troublesome product.

4 . Welcome to your future life.

You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people of your age could live to 150, so, at 40, you aren't old at all. And your parents just had an anti-aging(抗衰老）treatment.Now,all three of you look the same age.

You say to your shirt, “Turn red.” It changes from blue to red. In 2035,“smart clothes” contain particles(粒子） much smaller than the cells(细胞）in your body. They can be programmed to change your clothes' color or pattern.

You walk into the kitchen. You pick up the milk from the fridge, but a voice says, “You shouldn't drink that!” Your fridge has read the smart chip(芯片）that contains information about the milk, and it knows the milk is old. In 2035,every article of food in the grocery store has such a chip.

It's time to go to work. In 2035, cars drive themselves. Just tell your “smart car" where to go. On the way, you can call a friend using your jacket sleeves. Such＂smart technology" is all around you.

So will all these things come true?"For new technology to come early,"says scientist Andrew Zolli,“much has to be done so that new things will replace what we have today."The Internet is an example-what will be the next?

5 . In the future, when robots can be used both in homes and in other areas, they could improve the living standards of people.     1     When robots can complete such jobs, people can spend more time with their family and friends.

Experts believe robots can be used on certain jobs to avoid accidents caused by careless behavior of some people. When robots are used on such work, it does not risk any human life due to accidents at the workplace. Human resources can be efficiently used by performing tasks which demand human skills like critical thinking and problem solving.     2    

While some people talk about how robots can be useful to humans, others voice their concerns. When robots become cheaper to produce, employers may prefer to use more robots than humans. As the technology constantly improves the abilities of robots, it could weaken the value of humans.     3     Some may even develop the habit of using robots on tasks that they can easily do. This could create a lazy society.

    4     Without them, the nation’s health care system will break down. There will simply be too many elderly people to care for as the nation faces a decreasing birth rate, an aging population, and the loosening of family ties.     5     Above all, Japan needs its dreams of robots in the home to come true because its immigration policy is anti-immigration.

Every new year of the last decade I set a personal challenge. My goal was       1       (grow) in new ways outside my day-to-day work running Facebook. These       2     (lead) me to learn Mandarin, code an AI assistant for my home, read more books, run a lot more, and get       3     (comfortable) with public speaking.

When I started these challenges, my life was almost all about building the Facebook website. Now there’s so much more to learn. At Facebook, we’re building lots of different apps and technology and we’re handling a lot more social       4     (responsible). And   outside Facebook, I’m a father now and I love spending time with my family, working on our charity and improving at the sports and hobbies I       5     (pick) up over the past years.

This decade I’m going to take       6     longer term focus. Rather than having year-to-year challenges, I’ve tried to think about       7     the world and my life will be like in 2030 so I can make sure I’m focusing       8       those things. By then, if things go well, my daughter Max will be in high school. We’ll have the technology to feel       9       (true) present with another person no matter where they are, and scientific research will have helped cure       10       prevent enough diseases to increase our average life expectancy(平均寿命) by another 2.5 years.

Robots have been widely used in our daily life. They can be     1     (see) in many factories today and have gone to such far places as     2     moon. Some robots can” see"     3    ( clear). For they use TV cameras as their     4     (eye), Many robots have computer brains, Now they have even come into       5       (we) homes and work as       6     (help) at home , Not only can they do simple jobs for us ,such as     7       (put) things into boxes , but also they can look    8     babies Unlike human beings       9     needy sleep, robots can work 24 hours a day. In the future, with the aid of robots, our life will become much     10     (easy) than before.