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  3. Humans have lost the evolutionary race. We are born without wings. It’s a cr

Humans have lost the evolutionary race. We are born without wings. It’s a cr

游客2023-10-13  32
问题     Humans have lost the evolutionary race. We are born without wings. It’s a crucial omission and we are making the environment pay for it.
    We like to think we’re the bee’s knees of the natural world but we’re nothing more than bumbling flatfoots. That’s why kookaburras laugh and midges torment us. We are grounded for life and, in our frustration, we’re wrecking the planet.
    Wings might seem just fun and frippery, but they would also save the environment, If we could fly, we would not be trampling ecosystems underfoot. Natural habitats that now get bulldozed would flourish because we wouldn’t need roads. There would be no demand for cars, so there wouldn’t be emissions problems.
    The common housefly travels 300 times its body length in one second. (91) If in a few generations we could match that, we would reach 2,000 kilometres per hour, which would make ozone-destroying aircraft and land-grabbing airports unnecessary:
    Society would benefit enormously if we could fly. Our philosophy about the private ownership of land would have to change because fences would become useless. (92) Nets wouldn’t stop people flying into your garden--as anyone knows who has tried in vain to keep birds out of fruit crops. And domestic rooftops would become public resting places.
    The justice system would not need to guard expensive prisons because felons would simply have their wings clipped. Sports stadia would consist of only the pitch, with spectators hovering over the action. Stairs escalators and lifts would be as superfluous as bridges and tunnels. Buildings would have smaller ground plans and, instead, rise upwards, with entrance porches on every level.
    (93) If we had wings, not only would we not need to plunder so much of the Earth’s resources, but we’d also be better guardians of the environment. Woodland would not be cut down because trees would be vital resting places as we flitted through the troposphere. We’d be more aware of the changes to Earth as we survived it daily from on high. And we’d soon appreciate any changes to air quality at all heights.
    There would be some drawbacks. (94) Clothing would have to be tight and aerodynamic--but our perception of human beauty would soon change so that we’d delight at a glimpse of wings with colorful feathers. Demand for the best addresses would push the prices of mountain eyries sky-high. Electricity pylons and overhead cables would have to go. There would, inevitably, be the occasional crash landing in rush hour as soaring commuters got spun by the wing-tip vortices of others.
    But it would be worth these minor hassles. The dinosaurs clearly recognised . the merits of wings, and went so far as to evolve into birds. That left us to inherit the Earth--an inheritance we seem determined to fritter away.
    Humans clearly have an intuitive inkling of the need to fly. It comes up again and again, in nursery tales and sophisticated mythology from all over the world.
    If we had evolved wings, the world would have been blessed. (95) For the sake of the planet, biologists should stop growing ears on the backs of mice and start putting feathers between our shoulders, before it’s too late.
    Time’s running out. Must fly. [br]
选项
答案 网不能阻止人们飞进你的花园，正如想用网来保护果类作物的人都知道，用网挡鸟是徒劳的。
解析 (本句的主干是nets wouldn’t stop people flying into your garden, as anyone…fruit crops在句中起补充说明作用。)
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