Green Offices: a gerund and infinitive challenge

Hello everyone!

Today's video is a little presentation of eco-friendly measures in a company.

I suggest summing up or transcribing at least four or five measures that they implement at their offices, identifying all the to - infinitive and -ing forms. What is their function? 

ex. In Beijing, they arrange over 70 different bus lines from different parts of the city, helping them to (or: "which helps them to", expresses consequence) reduce the number of cars, and with it their carbon footprint.

How many more can you identify? The main objective for you is to transcribe them, and if possible, say:

a) if they are the subject 
b) if they are the object of a verb (remember certain verbs take infinitives, others take -ing, others take both...?)
c) if they express manner (they way we do something)
d) if they express consequence
e) if they express purpose 
f)  Extra: any participle clauses?

Enjoy! Here's the key.

Skyscraper history

Hi everyone!

This National Geographic video seems to be the beginning of a longer documentary. I quite like the language used, and the voiceover is just challenging enough with its pronunciation of weak syllables.

The documentary reviews seven "historic giants". Why do we use the word "historic" here, and not "historical"?

Have you seen any of these buildings? Personally, I'd love to see the Flatiron. I actually saw it yesterday in a film, just in passing, and I thought it was impressive.

Time for some comprehension. Complete with one or two words:

The Burj Dubai  _________  its success to seven key inventions.
At the heart of each of those seven buildings lies a major technological innovation that _________ to reach taller into the sky.
Seven ingenious leaps forward that _________  skyscrapers to evolve from big to bigger into the world's biggest.
Stairs in old office buildings were long and very dark, so people weren't willing to _________  more than to the second or third floor.
In the explanation of the security device for elevators, the rope breaking _________  a chain of events that locks the elevator.
The elevator completely transforms the _________  .
The Burj Dubai takes the idea of the elevator to _________  . Its more than 160 storeys _________  elevator technology to its absolute limit.


Enjoy! The key is here, but comments are also welcome!