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Part 2&3  An invention that is useful in your daily life答案及解析_雅思口语练习「新东方雅思官方网校」

Whenever asked to describe an invention everyone says the computer… but I think that’s pretty boring, to be fair. We all tend to forget about the other, more important and essential inventions that have literally transformed the way we live. For this reason, I’d like to talk about the fridge. Yes, the refrigerator! It’s so easy to take for granted because today everyone has one, but going back just one generation, everyone didn’t have one, and go back two or more generations and they didn’t even exist. Imagine living life without a means of effectively storing perishable food for days… It sounds simple, I know, but the fridge is what really makes such a huge difference to our home life, and it also saves us a tremendous amount of time. Food, especially in the peak of summer, can be stored for days and kept fresh – especially things like meat or fish which will most certainly go bad very quickly in hot weather. Did you know that the amount of food-related sickness has declined massively since every household, restaurant and shop started using fridges? As soon as a piece of meat is taken from a cold environment it will start to gather all sorts of bacteria, and begin to go off… to go bad. And when the bacteria take hold inside the meat, or fish, if you eat it the chances of getting sick increase significantly. So, properly refrigerated and stored food has been a huge thing for humanity. Not to be dismissed. Today fridges are not just popular, they are ubiquitous. We don’t even consider not needing a fridge. It’s just one of those things everyone buys. And.. many families buy two fridges – you know how people in my country love their food! It’s so easy to use as well – basically you just plug a fridge into the electricity, and it works – it uses a mechanism and a special motor and liquid, I think, it keeps the ‘box’ cool. All you need to do is ensure you set the temperature correctly. Apart from that, it’s an item that literally anyone can use without any hassle at all. 

I think inventors usually have a very creative and innovative mind, as well as one which is very detail-focused and scientific. An inventor needs to have a combination of passion, scientific knowledge, and a creative ambition and desire. I think that's traditionally the case, anyway. Nowadays a lot of inventions are based on computers and programming so maybe the personality-type of an inventor today is rather different, I'm not sure. 

Certainly not – I mean, it's very clear that some inventions like the nuclear bomb, are not at all beneficial to humanity – or, at the very least, they have significant down-sides which we cannot ignore. One of the latest debates is the invention of AI (artificial intelligence) – and the huge step that AI has recently taken – people are actively debating whether this could lead to machines not only taking our jobs, but possibly even threatening our existence. So, every invention can have its downsides too, I guess.

I think they certainly can. Some people are just smart and very autonomous – they can learn things themselves. I remember seeing a short documentary not long ago about a Chinese man who invented a kind of submarine and actually managed to sail it underwater down a river! I mean, he had never been to school, but had learned about mechanics and engineering and science all by himself, through sheer interest, determination and passion. 

No. I think that all sorts of different people are capable of inventing things. If you look at some of the most successful inventors, or let's say 'innovators' of our times, they are not all scientists, they are people with great imaginations, desire and passion and determination, and they usually are able to garner the support of the scientific community as well. Inventing today is very much a shared endeavor which is often inspired by an individual, but created by a team. 

Well.. I think that one of the main things that really needs improving today, are batteries – yes, batteries. We are constantly charging our phones, computers, and now cars. Batteries do not actually last that long – they do not store electricity for long enough really, and this makes it quite inconvenient. We are constantly having to charge up our items. And, so, I think one of the most important inventions of our time that needs improving, is the life of batteries. If batteries could last much longer, then cars, computers and phones would not need charging every day! 

Inventions related to medical care, medical advances, and climate – those are the most important inventions today that would make the world a better place. The primary concerns on earth should be looking after the health of people and the planet. Because without a healthy population and a healthy living environment, then we have no secure base from which to invent other things! 