During an interview, Professor Hawking warned that AI(人工智能) will soon reach a   level     1    it will be a “new form of life that will perform     2    (well) than humans.” Professor Hawking even went so far as to say that AI may replace humans altogether,     3    he didn’t state exactly a timeline for his forecast. He said: “I fear that AI may replace humans altogether. If people design computer viruses, someone will design AI that improves and copies     4    (it). This will be a new form of life that outperforms humans.”

During     5    interview, Professor Hawking also urged more people to take an interest in science,     6    (say)that there would be “serious consequences” if this didn't happen. He said that a new space programme should     7    (develop), adding human may have to turn to other suitable planets for habitation     8    (eventual). He said: “I believe we have reached the point of no return. Our Earth is becoming too small for us, global population is increasing at a     9    (surprise) rate and we are in danger of self-destructing.”

This isn't the first time that Hawking     10    (express) fears about the rise of AI. In October last year, he warned that artificial intelligence could develop a will of its own that is in conflict with that of humanity.

Experts have started working on    1     unbelievable project to make a robot made by NASA act like a human.

    2    (name) Valkyrie, the robot looks like a woman and may be used to explorer Mars one day. It       3     (invent) by NASA scientists to compete in the DARPA Robotics Challenges(DRC). It is 1.9 meters tall and    4     (weight) 125 kilograms. It comes with a series    5     cameras, sonar, and other sensors spread across its body to help it move around.

Valkyrie is powered by a battery on its back, which can keep it     6     (operate) for an hour. It can walk on    7       (it) own, pick up objects and control many objects and tools,    8    is part of the requirements for the DARPA challenge.

The machine can walk on two legs and perform basic    9     (move) at present. However, the team from Scotland’s Edinburgh University wants to give it       10     (many) skills. It is hoped that the new and improved robot will work along with astronauts in space.

3 . Traffic is a very important part in daily life.Nearly everyone complains about being stuck in traffic so much     1    people are making it possible that the future city will have no traffic at all.H.G Wells,in his book.The Sleeper Awakes,tells something about the traffic.In the streets of that future London there will be no vehicles.The city    2     (provide) with moving roads.One side of the road travels    3    one direction;    4    other side moves the opposite way. Anyone who wants to go to another part of the city steps on the moving “way” and sits on one of the seats until he arrives.He has none of the troubles,    5    a private car brings with it: whether there is enough petrol,whether the tyres are all right,and where to park it.The moving way is always at his service,always moving    6    (silent) along,always ready    7    (take) him to his destination.That city of the future will have no traffic jams.

To link up the    8    (vary) cities,vehicles driven by atomic power will pass along highways    9    (divide) into two main groups of lanes.Each group will consist of several lanes.Some for slow traffic,some for fast.Crossroads will not exist on these highways,but will be replaced by bridges and junctions.Where these highways enter cities,    10     (port) and other built-up areas,they will pass through underground tunnels.