What will the future world be like? Many people are glad to give their 1 . Here are two imaginations about the world of 2. When people talk about the future, we like to think that we'll have our own personal flying car. We would fly at 480 kilometres per hour, avoiding traffic lights, 3roads and speeding tickets. 4, some people point to the disadvantages of flying cars. One big problem is: what will happen if the flying cars 5? Then there will be problems with traffic control. Also, if6 become popular, there will surely be too much air traffic. 7 it seems that flying cars will face more than a few problems if they are to get off the ground! .Imagine you have your own Ironman8. Several companies are trying to build a practical robot "exoskeleton". This is a suit of robot arms and legs which follows your movement. It will9 the wearer to lift heavy objects, walk a long way and even punch through walls! It is10 in many ways, especially for people with disabilities. This suit might help people to walk again after11 or injury（受伤）.But the disadvantage at the moment is the12 . Even a simple suit can cost hundreds of thousands of pounds. Another problem is battery life. A suit like this needs a lot of13 and batteries only last about 15 minutes at the moment. One other problem is that a badly programmed robot wearer. You wouldn't want your robot leg or arm bending（弯曲）suit could 14 the wrong way.
So in the future, 15 we might be able to fly to work and lift a there are plenty of problems to solve before this will be possible.
