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Flying has shrunk the world! It's now po...

    Flying has shrunk the world! It's now possible to travel around the globe quickly and easily. Jumping on a plane and jetting off on holiday or a business trip is the norm for many of us, and with the rise of budget airlines, the number of people taking to the skies is increasing. But while air travel is costing us less, the cost to the environment is going up.

Climate change is something we're all aware of now, and aviation (航空)companies know that some of the blame for this is being pointed at them.

While we could think twice about taking a flight in the first place, particularly a short-haul trip that could be made by train, technology might be the answer to reducing emissions and minimising the environmental damage.

Recent developments have focused on reducing the amount of fuel airliners bum. Making flying green and sustainable was the hot topic at the recent Dubai Air Show. There was talk of advances in engine technology, making them more efficient, and possibly using bio-fuel to power aircraft.

Alejandro Rios Galvan, a bio-energy professor at Khalifa University in Abu Dhabi, told the BBC that "these have the capacity to reduce the carbon footprint anywhere between 50-80 percent when you compare them to fossil fuels."

Phil Curnock, chief engineer of the civil future programme at Rolls-Royce, also suggested that electric hybrid engines could play a part for smaller aircraft, covering shorter distances, which offers the possibility of a carbon-neutral flight for a limited range.

Of course, aircraft manufacturers are constantly looking at ways to make their planes more fuel efficient. Boeing's Dreamliner, for example, is already in operation and uses 25 percent less fuel per passenger compared with aircraft of a similar size. Other improvements include better aircraft aerodynamics (空气动力),changes to ways aircraft taxi on runways, and the use of lighter materials.

If we can't kick the flying habit, it seems these are the developments we need to make in order to ensure air travel is as green as possible. But aviation experts agree it’s going to take time.

1.What idea was presented in the recent Dubai Air Show?

A.Reducing budget airlines globally.

B.Replacing fossil fuels with bio-fuels.

C.Employing hybrid engines in aircraft.

D.Reducing carbon footprint via technology.

2.Why did the author mention Boeing's Dreamliner?

A.To show improvements in reducing fuel airliners bum.

B.To compare different aircraft of a similar size.

C.To prove the efficient use of lighter materials.

D.To inform the readers of an advanced aircraft.

3.Which is practical for us to do according to the text?

A.Cut down on our travel by plane.

B.Ensure our own air travel is green.

C.Look forward to technological development.

D.Call on aviation companies to reduce emissions.

4.What is the text mainly about?

A.Making flying greener for the environment.

B.Reducing the carbon footprint anywhere.

C.Blaming aviation companies for pollution.

D.Seeking answers to technological problems.

 

1.D 2.A 3.C 4.A 【解析】 这是一篇说明文。航空业经常被指责是造成气候变化的原因之一,飞行确实会产生碳排放,不过人们正在研发能让乘坐飞机变得更加环保的新技术。 1.细节理解题。根据第三段的Making flying green and sustainable was the hot topic at the recent Dubai Air Show. There was talk of advances in engine technology, making them more efficient, and possibly using bio-fuel to power aircraft.(在最近迪拜航空展上,让飞机更环保、更加可持续发展是一个热门话题。他们谈到了发动机的进步,提高发动机效率,并可能使用生物燃料来为飞机提供动能)可知,迪拜航空展谈论的主要话题是利用科技让风机更环保,即降低飞机的碳足迹。D. Reducing carbon footprint via technology.(利用科技减少碳足迹)符合以上说法,故选D项。 2.推理判断题。根据第七段的Of course, aircraft manufacturers are constantly looking at ways to make their planes more fuel efficient.(当然,飞机制造商一直在寻找提高飞机燃油效率的方法)可推测,列举波音的例子是为了说明在减少飞机燃油方面的进步。A. To show improvements in reducing fuel airliners bum.(为了表明在减少飞机燃油方面的进步)符合以上推测,故选A项。 3.细节理解题。根据最后一段的If we can't kick the flying habit, it seems these are the developments we need to make in order to ensure air travel is as green as possible.可知,如果我们不能停止飞机旅行,那么我们只有期待科技发展来确保航空旅行尽可能绿色。C. Look forward to technological development.(期待科技的发展)符合以上说法,故选C项。 4.主旨大意题。根据文章的主要内容,尤其是第三段的Recent developments have focused on reducing the amount of fuel airliners bum. Making flying green and sustainable was the hot topic at the recent Dubai Air Show.( 最近的发展都聚焦在减少飞机燃油量上。在最近迪拜航空展上,让飞机更环保、更加可持续发展是一个热门话题。)可知,本文主要讲述通过科技让飞行变得更环保。A. Making flying greener for the environment.(让飞行更环保)符合以上说法,故选A项。
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    I had always heard that North Americans value independence, and that Europeans value, togetherness. But I never fully understood it until 2 months ago, when I left my Ph.D. lab in Canada for a 4-month research in a lab in France. On my first day, Pierre — a Ph.D. student whose desk is across from mine — tapped me on the shoulder and asked: "Coffee?" I nodded and followed him down the hallway to the common room, where other grad students were filing in. I sat there, cautiously sipping the bitter liquid five times stronger than my normal Americano and trying hard not to reveal my uncultured tastes, while lab chatter(闲聊)filled the air.

Coffee breaks are a routine part of work life here. The chatter sometimes turns to serious scientific topics. But mostly, the meetups offer a chance to unwind — to share stories about life inside and outside the lab and to connect with people who understand what you're going through.

The lighthearted atmosphere and sense of community is a welcome contrast to my life in Canada, where I spent most of my workdays all alone. I went into the lab each morning with set goals for my day. At lunch, I'd keep my eyes glued to my computer while I shoveled(大量送入)forkfuls of salad into my mouth, trying to power through my to-do list.

Our lab held weekly meetings where we'd take turns presenting our latest, work and getting feedback from colleagues. But we didn't take daily coffee breaks. My labmates and I were too busy collecting data and publishing papers.

Looking back now, I realize how much we were missing. Researchers need community because good ideas don't just come from reading literature and thinking deep thoughts; it's helpful to bounce ideas off others, particularly in a nonthreatening environment. It's also helpful to have a spot to share the day-to-day ups and downs of life as a grad student. How else are you supposed to know that you're not the only one suffering from challenges like anxiety?

1.What can we learn about the author from the first paragraph?

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B.He was ill at ease in the new environment.

C.He was ashamed of his uncultured background.

D.He is too vain to work with other grad students.

2.The author takes coffee breaks as a way to            .

A.break away from his work life in Canada.

B.get involved in serious scientific topics.

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D.collecting data from his colleagues.

3.Which of the following best describes the authors work life in Canada?

A.Demanding but satisfactory.

B.Impersonal but efficient.

C.Challenging and tiresome.

D.Stressful and independent.

4.What is the best title for the text?

A.Why Scientists Should Take Coffee breaks?

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D.Sticking to meeting society's expectations.

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由于疫情(Covid-19)原因,你所在国际学校原定下周举行的生命科学周将改为网上进行。你受学生会委托写一则英文通知,内容包括:

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Notice

May 18, 2020

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_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

The Student’s Union

 

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