2 . Life in the future will be different from the life today. Between then and now many changes will happen. But what will the changes be?

The population is growing fast. And most of them will live longer than people now.

Computers will be much smaller and more useful, and there will be at least one in every room. And computer studies will be one of the important subjects in schools then. People will work fewer hours than they do now and they will have more free time for sports, watching TV and travel. Travelling will be much cheaper and easier. And many more people will go to other countries for holidays.

There will be changes in our food, too. More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day. Instead, they will eat more fruits and vegetables. Maybe people will be healthier. Work in the future will be different, too. Robots will do dangerous and hard work. Because of this, many people will not have enough work to do. This will be a big problem.

3 . Every Friday evening when the sun looks like a giant orange and is starting to dip into the blue ocean, Old Eddie comes to his favorite pier with shrimp. Before long, dozens of seagulls fly to diet and _________ him. Ed stands there tossing shrimp to the hungry birds. As he does, you can hear him say with a smile, “Thank you. Thank you.”

_________ in World War II he was a famous hero. On one of his flying _________ across the Pacific, he and his seven-member crew went down. _________, all of the men _________, crawled out of their plane, and _________ into a life raft. Captain Rickenbacker and his crew floated for days on the rough waters of the Pacific. By the eighth day their foods _________. They were hundreds of miles from _________ and no one knew where they were.

Suddenly, Eddie felt something land on the top of his cap. It was a _________! Old Ed would later describe how he sat perfectly __________, planning his next move. With a __________ of his hand, he managed to __________ it and he, and his starving crew made a meal, a very __________ meal for eight men of it. Then they used the intestines for bait(诱饵). With it, they caught fish, which gave them food and more bait and the __________ continued until they were found and rescued.

Eddie Rickenbacker never forgot the sacrifice of that first lifesaving seagull. That’s why almost every Friday night he would walk to the pier with a bucket full of shrimp and a feeling of __________.

5 . What if the Moon had never existed? For starters we know that the geophysical and climatological history of the Earth would have been different. Although there is still large uncertainty about how the Moon was formed, the most currently favored theory describes a disastrous collision between the Earth and another planetary object.

That event forever changed many aspects of the Earth's evolution. For example, with a relatively large natural satellite putting gravitational tidal forces (潮汐力) on it, the Earth's spin behavior has been quite different than it would have been otherwise. Day length has increased more rapidly than without a moon. And the natural changes in the direction of the Earth's spin axis (轴)-its poles-have been less than they would have been otherwise. A shorter day length and axial variations like these would have changed the Earth's climate history, and almost certainly have changed the way any life evolved.

But if a species like us had still appeared, its landscape for space exploration would also have been completely different. Without a large natural satellite, a mere quarter of a million miles away, there would have been no "easy" trip to make to another world. If there had been a first human mission to another world, it would likely have been to Mars. But this would surely have called for far more extensive designing of spacecraft and life-support systems for deep space. Perhaps instead the initial focus would have been entirely on Earth-orbiting equipment for people and robotic missions to other worlds. Or, maybe the attraction of the seemingly near impossible would still have encouraged these humans from an alternate reality to take the great leap to Mars as their first step outwards.

It is of course, impossible to know exactly what our world would really be like without the Moon-both physically, and in terms of human exploration. But one thing does seem clear: we probably take our natural satellite's existence far too much for granted. Not every inhabited planet in the universe will have its own ready-made gateway to the universe.

5G is developing, but most of us aren't really sure what it is or the reason     1     we need it. A big part of the reason is that 5G means more than one thing. If you ask different people, you     2    (provide) with different answers.

Experts believe that 4G is on     3     way out. In 2020, the U.K. is expected to use 5G. At present, it is unknown exactly what influence 5G will have on people's life but it is widely thought that 5G will     4     (definite) be faster than any generation of networks we have used previously.

Work will likely become much easier as 5G will allow quicker downloads and a better ability to work online even if there is no wi-fi connection. With the     5     (develop) of 5G, driverless cars will be able to communicate     6     other vehicles, which can reduce road accidents by about 10%, One of the most     7     (impress) things will be that people can see which seats on a train are accessible to     8     (they) when it arrives at the station.     9     (get) around the world will also be more convenient.

A number of     10     (company) are now working on bringing 5G to the market. It remains to be seen how much of the country 5G will cover and whether everyone will be able to benefit from it.