The basis of an excellent thesis is a great topic and from the topic you can formulate a thesis statement. From the thesis statement the student can then come up with a good in depth research. As long as the thesis topic interests you it will be easier to get through the research. Our advice to the students is to focus on a narrow scope that makes your research easier. This will also mean that when asked to make a presentation by your professor it will be much easier and interesting too.
It is always good for the student to have knowledge on the literature so as to make sure that the main arguments are claims are well expressed. Arriving at the right thesis topic is quite important and this ensures that you get the right flow of ideas and also have enough time to do your research effectively. It is important to do consultations with your professor or thesis supervisor so as to arrive at an appropriate topic.
Getting a topic that interests you will mean that getting the answers to your thesis question will not be hard and instead of your thesis taking months it will take you a shorter time leaving you with enough time to go through and do your presentation on time. We always advice students to use short sentences. Long sentences can be quite confusing when used too much and short sentences are precise and to the point.
Basically writing a dissertation takes on the same format use of short sentences that are straight to the point and precise. Professors do have a lot of work and going through a paper that has long sentences can be quite boring and taxing for them; so you might find that they will get bored and disregard your work without going through it.