Using one of these sentence starters is a good way to write a more interesting sentence for your "hook." It also helps to start with an example or a story which will get your reader involved in your paper. Questions can be a good starting sentence, or a vivid description or startling fact. Never start with something boring like "In all of human history..." For example, if you are writing about n start poverty, you can start with some startling facts or a story. Here are some sample first sentences on that topic:
Did you know that in America about 41% of children were living on the brink of poverty in 2016?
Getting ready for school in on a Monday morning, John Jefferson hoped the school breakfast would be a good one since he hadn't eaten anything but crackers since the school lunch on Friday.