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英语口语网权威发布雅思口语Part2参考答案之重要的发明，更多雅思口语Part2参考答案之重要的发明相关信息请访问英语口语网。一、参考范文
It is really tough to pick one particular scientific invention that had positively influenced human race as there are possibly hundreds and thousands of such inventions. I would like to pick the "Light Bulb" as one such invention that has very positively influenced human race.
This single invention of science has uplifted the human race towards prosperity and modern world. Think about a world without any lights in the dark and we would have been no different than living in a cave. The great scientist Thomas Edison is credited to invent the light bulb and till then many improvements have been done to it.
The bulb is the main source of illumination and light at night time when the Sun is hiding in the opposite side of the world. We are so habituated with the electricity and light bulbs that we might wonder if it is a life changing invention or not.
But think about living your life for few days without the bulbs and then you would realize the true importance of this single invention. Some may argue that fuel powered lighting system could have been alternative to it, but the reality is that, that would have been too expensive and could not have been an easy source for lighting the houses,
Think about the other living beings other than human; they mostly get back to their living place in the evening and except some nocturnal animals and birds, most of them stay at their living place till the morning.
They rarely do anything at night and that"s because they are afraid of dark and have no vision to see at night. As human, we could have some lighting system if we did not know how to light a bulb but that would not have been so widespread without the invention of light bulb. Scientific inventions are interrelated and one invention or theory inspired and accelerates the invention of other important inventions.
Light bulb is one such invention that has inspired the invention and research of other inventions. This i