This list of countries by rail transport network size based on International Union of Railways data ranks countries by length of rail lines worked at end of year updated with other reliable sources. These figures also include urban/suburban mass-transport systems; as well as lines which are not used for passenger services. 1 List.
Review with students what a topic sen-. tence is. (The topic sentence is the sentence. containing the main idea of a paragraph-. often, but not always, the first sentence in. the paragraph.) Put a couple of good models. from the daily newspaper on the overhead-.
Topic Sentence Definition. Topic sentences are special sentences that serve as guideposts to the writer and reader; they help shape the essay and move it along from idea to idea. If you have already gathered information and developed some support for a thesis, you may find that your support falls into groups or categories. A rule of thumb is that you can develop a topic sentence for each category to help shape that information and to cue your reading audience in to a change in supporting idea.