The answers are the following:
"For once, at least, I grasped the mental operations of the Morlocks. Suppressing a strong inclination to laugh, I stepped through the bronze frame and up to the Time Machine;"
" I was surprised to find it had been carefully oiled and cleaned. I have suspected since that the Morlocks had even partially taken it to pieces while trying in their dim way to grasp its purpose "
Answer:
one: know what the whole project is about i.e that's know if it's educational,talking business contemporary issues etc
two: check for topics in the internet.
three : when that's done, you check on recent videos on the topic
An introduction comes at the beginning and introduces the subject. While a conclusion comes at the end and concludes the subject. I hope this helps.