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The helix

Listen to a lecture about the helix shape to practise and improve your listening skills.

Do the preparation task first. Then listen to the audio and do the exercises.



Language level

Advanced: C1


I am interested in scientific lectures, in particular the ones that explain important discoveries or scientific achievements. Especially, the ones like this one that introduces a complicated geometrical shape and its applications without entering the mathematical complexities. So it is clear and understandable. Such lectures are really motivating and show the importance of the scientific research activities and their impacts in the daily life. Therefore, such lectures further demonstrate the importance of the hard work done by researchers in their laboratories.

Dear teachers of Brirtish Council,
Thank you very much indeed for your work which gives all of us opportunity to learn English language!
I wish you all Happy New Year!

Hello Evgeny,

Thanks for your good wishes. I hope you have a great 2020 and learn a lot of English!

Best wishes from all of us here at the site.



The LearnEnglish Team

I’d been attending science lectures for five years when I was student in faculty of science.I am still keen in the genetic subject, the development in this field is promising for example in medicine :curing difficult cases like cancer and some inherited diseases . furthermore, there are ongoing researches work on the human genome to find out why some people are more vulnerable to get sick with a disease while other has a resistance. Also in agriculture genetic engineering help to provide kinds of crops which has resistance to agricultural pest .

Dear Team,
I think,in Task 2/quest.5, we can write either ''alternating'' and ''alternate'',using it as an adjective.Could you check it , please, if I'm right?

Hello nikoslado

Yes, it appears that you are right, i.e. that 'alternate' is also possible in that sentence. In my experience, 'alternating' is much more commonly used, but I will change the exercise so that 'alternate' is also correct.

Thanks for pointing this out to us.

All the best


The LearnEnglish Team