阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。The city of the future
What will the city of the future look like? No one knows for sure, and making predictions {#blank#}1{#/blank#}(be) a risky business. But one thing is certain —they are going to get bigger before they get smaller. We will use lots of {#blank#}2{#/blank#}(recycle) materials, such as plastic aluminums, steel , glass ,wood and paper, and we will waste fewer {#blank#}3{#/blank#}(nature) resources. We will also have to rely more {#blank#}4{#/blank#}alternative energy, such as solar and wind power.
A teacher at {#blank#}5{#/blank#} university in the United States asked his students to think {#blank#}6{#/blank#} they would run a city of 50,000 people in the year 2025. Here are some of the ideas they had:
Garbage ships To get rid of garbage problems, the city will load huge spaceships with waste materials and send them towards the sun,{#blank#}7{#/blank#} (prevent) landrills and environmental problems .
Cars All cars will be powered by electricity, solar energy or wind , and{#blank#}8{#/blank#}will be possible to change the color of cars at the flick of a switch.
Telesurgery Distance surgery will become common as doctors carry out operations from thousands of miles away, with each city {#blank#}9{#/blank#}(have) its own telesurgery outpatient clinic.
Holiday at home Senior citizens and people with disabilities will be able to go anywhere in the world using high-tech cameras {#blank#}10{#/blank#}(attach) to their head.