I’ve often suggested that the use of transition phrases will make your essays more fluent, and lessen the jarring effect created by simply switching from one idea to the next.
The following statement, from Smart Words (and you have to love any website that has a page titled “How to write good”!), highlights the ability of these words to enhance your essays:
“English transition words are essential, since they not only connect ideas, but also can introduce a certain shift, contrast or opposition, emphasis or agreement, purpose, result or conclusion, etc. in the line of argument.”
I encourage you to print out this PDF ready-reckoner of transition words and phrases, and take some time over the next few days to learn at least one or two from each category: transition-words-phrases