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-.
A topic sentence is a sentence that captures the meaning of the entire paragraph or group of sentences. It tells what the passage is mainly about. First, try to find a topic sentence in the paragraph or section of the text to use as a topic sentence. If you cannot find one, then write your own topic sentence by combining important ideas from several sentences. In the following example, the underlined sentence forms a good topic sentence for this passage: The Egyptian civilization was one of the most important cultures of the ancient world.