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Video: ‘Why airlines sell more seats than they have’

Fly High English - Video

This week’s video describes why airlines sell more seats than they have. After this week’s news about a United Airlines passenger forcibly removed from a plane, it’s interesting to find out more about this practice. Watch the video to find out why and how they do it.

Try to answer the following questions about the video and come back on Monday for the answers.

Suggested ICAO level for video: 5+

  1. What’s the term used to describe the quantity of passengers that don’t arrive for their flight?
  2. How do airlines know how many people won’t arrive for their flight?
  3. Why do many passengers miss their connections?
  4. Why do passengers miss Sunday flights less?
  5. How do airlines choose who will be bumped off a flight?
  6. So what can passengers do to reduce the chances that they’ll be bumped of a flight?

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Have a great weekend!

Why Airlines Sell More Seats Than They Have

Get 15 free days of knowing your data is safe by using this link with Backblaze: http://backblaze.com/wendover I started a brand new podcast with Brian from Real Engineering. In the first episode we talk with Hank Green of Crash Course, VidCon, SciShow, and more.

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Structure: ‘passive 3‘

More uses of the passive

We’ve previously seen the structure of the passive and we’ve seen examples of the passive in different tenses. We also saw that we can use the passive in situations;

  • when we don’t know the agent (who or what performs the action) of an action
  • or if the agent isn’t important.

There is another reason for using the passive. In English (and other languages) it’s common to structure sentences to include new information close to the end of a sentence. Let’s look at this idea in two active sentences.

Active sentence: I performed a flight last week in a Cessna 172.

So ‘a flight last week in a Cessna 172’ is the new information so we naturally place it towards the end of the sentence. Let’s continue this ‘text’.

Active sentence: It’s a fantastic plane.

Again, ‘a fantastic plane’ gives us new information, the speaker’s opinion about the plane. So we see that because of the tendency to place new information at the end of a sentence, we generally use active sentences. However, we may also need to use the passive to place new information at the end of the sentence.

Let’s imagine our conversation again;

I performed a flight last week in a 172. It’s made by Cessna.

In this situation the desire to position new information at the end of the sentence meant that the passive was necessary in our second sentence (It’s made by Cessna). Placing this new information towards the end of the sentence also puts more of a focus on it.

When we put ‘by Cessna’ at the end of our example sentence we are putting the focus on it.

Let’s look at another example.

The log book was removed by John.

Here, we want to focus on the fact that it was ‘removed by John’ so we use the passive to move that information towards the end of the sentence and put the focus on it.

Try to think of some other situations yourself and write some examples. Don’t worry if you don’t alway need to use the passive, focus on the idea of adding new information towards the end of a sentence.

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Video answers: ‘SOFIA’

Here are the answers to last Friday’s video, enjoy!

Suggested ICAO level for video: 5+

  1. It’s forty years old.
  2. There’s a hole in the fuselage to allow SOFIA to do its work.
  3. It stands for ‘stratospheric observatory for infrared astronomy’.
  4. They thought it was crazy because it was extremely challenging and there were many problems.
  5. It’s different because it looks at ultraviolet light while SOFIA looks at infrared light.
  6. SOFIA is flexible because different kinds of instruments can be placed on board to make different kinds of observations, and because it’s a flying telescope, it can be positioned anywhere in the world.

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Video: ‘SOFIA’

Fly High English - Video

This week’s video describes SOFIA, an observation tower with a difference. Find out more by watching the video.

Try to answer the following questions about the video and come back on Monday for the answers.

Suggested ICAO level for video: 5+

  1. How old is this jet used by NASA?
  2. Why is there a hole in the fuselage?
  3. What does SOFIA stand for?
  4. Why did some people think that the project was crazy?
  5. How is the Hubble telescope different to SOFIA?
  6. How is SOFIA flexible?

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Have a great weekend!

Climb Aboard a Boeing 747 That NASA Turned Into the World’s Biggest Flying Telescope | WIRED

To get the best space observations possible, NASA scientists fly around the world in a highly modified 747 carrying a giant telescope. Still haven’t subscribed to WIRED on YouTube? ►► http://wrd.cm/15fP7B7 ABOUT WIRED WIRED is where tomorrow is realized. Through thought-provoking stories and videos, WIRED explores the future of business, innovation, and culture.

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Structure: ‘passive 2’

When do we use the passive?

There are some easily understood situations when we use the passive. We can use the passive;

1) When we don’t know who performed an action (we don’t know the ‘agent’ of an action).

Three computers were stolen from the company’s offices. (we don’t know who did it)

2) When we don’t want to mention who performed the action because it’s not important.

Finally the mess in the cabin was cleaned! (the cleaners probably did it, but the action was more important than who did it)

Have a look at the diagram below to see examples of the passive in some less common tenses and then try to write some of your own examples.

Diagram showing the form of some other passives.
Form of some other passives.

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Video answers: ‘Mysterious objects on the A320’

Here are the answers to last Friday’s video, enjoy!

Suggested ICAO level for video: 5+

  1. They are used as a reference to allow flight attendants to quickly select the best window to view the leading edge and trailing edge of the wings. They can also be used as guidance as to where to seat passengers on a flight with a low load factor.
  2. The purpose of the piece of metal is to attach an escape rope to during an emergency evacuation from the overwing exits. It allows passengers to move more safely over a wet wing.
  3. It doesn’t have them because the A321 doesn’t have overwing exits.

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