I would recommend you speak to your module tutor as they will be able to assist you with these. At first, it was daunting to me to email my tutors but they are there to help you. Or ask them in your classes and they will be happy to help, especially in first year as it can be hard to grasp how to write the reports and assignments straight away.
Sometimes you will lose marks for not attempting certain tasks but sometimes you can fail.
If you look at the assessment criteria it might give you some more details about how the report is weighted and if the task you don't understand is a high percentage of marks, I would recommend you do it.
I would also say that usually attempting a task Is better than just leaving it completely, as it shows that you have at least tried.
I hope this helps!
Lucy -SHU student ambassador.