I would like you to watch the first video of the unit titled " We are nothing" and then take notes at the same time. It is not necassary to copy everything they say. Just the main ideas. Finally, answer the last question about the possiblity of the life outside the Earth in other areas of the Universe...
Our objective will be not only to understand what we see but also to make us think why things are as they are. Which one is our role in the Universe ...? I don´t know what to answer to that, do you have any idea?
What to do with the other videos...? Quite easy... you just have to watch them and to listen carefully to the pronunciation in general and more specificylly the specifically to the words and ideas we are studying in this unit. It will help you to acquire more confidence with your oral skills and at the same time you will be reinforcing the content.