IV. Match the word or phrase with their meaning and write the answer in each blank. 31 Driverless car A. not harmful to the environment 32 Jet pack B. an aircraft in which the energy required for propulsion is collected by panels of solar cells put on the wings 33 Sidewalk C. the physical body disappears from one location and reappears in a different spot 34 Environmentally friendly D. a high- speed passenger train, as on certain routes in Japan 35 Teleportation E. a rail-based transportation system based on a single rail 36 Solar cell F. a device, usually worn on the back, that are pushed by jets of escaping gases to let a single user to fly 37 Solar-powered aircraft G.an automobile that can travel on roads and can take off, fly and land as an aircraft 38 Monorail H. a robotic vehicle that is designed to travel between locations without a human operator 39 Bullet train I. a cell that converts solar energy into electricity 40 Flying car J. a moving pavement to support a large number of travelers