英语作文写作开头句topic-sentence汇编

1、 What is the structure of a paragraph? This is the structure of a paragraph! Generally speaking, these three different types of sentences play different roles in a paragraph: Topic sentence; Supporting sentences; Concluding sentence. a sentence to tell the reader what the paragraph is mainly about.

2、sentences to give more detailed information about the topic sentence. a sentence to end a paragraph or to summarize(总结）总结） the ideas. (主题句主题句 ) (扩展句扩展句/阐述句阐述句 ) (结论句结论句/结尾句结尾句 ) The Topic Sentence The characteristics of a topic sentence The positions of a topic sentence The Characteristics 1) The to

3、pic sentence must be a complete sentence. 2) The topic sentence should always contain both a topic and a controlling idea. The Topic Sentence = Topic + Controlling Idea 3) The topic sentence should be neither too general nor too specific. Examples: 1) The importance of reading widely. Reading widely

4、 is very important in improving ones reading comprehension. 2) Fire accidents in big cities. Recently years have witnessed a marked growth of fire accidents in big cities in our country. 3) To make all the decisions for children. Parents in China tend to make all the decisions for their children. Th

5、e topic tells the reader what the paragraph is about. The controlling idea is a key word or phrase that expresses the basic point of a paragraph. Note: a controlling idea commits the paragraph to a specific aspect of the topic. e.g. 1) Convenience foods are easy to prepare. 2) Alcoholic beverages sh

6、ould be banned from college campuses for two reasons. 3) There are quite a few unusual superstitions in China about marriage. (general) (specific) Read the following topic sentences and then identify the topic and the controlling idea in each sentence People can avoid burglaries by taking certain pr

7、ecautions. There are several advantages to growing up in a small town. Most US universities require a 550 point TOEFL score for a number of reasons. Air pollution in Mexico City is the worst in the world for a number of reasons. Fixing a flat tire on a bicycle is easy if you follow these steps. Ridi

8、ng a bicycle gives pleasure. There are several enjoyable ways to travel between the US and Queretaro. Animals in danger of becoming extinct come from a wide range of countries. Effective leadership requires specific qualities that anyone can develop. Industrial waste poured into Lake Michigan has le

9、d to dramatic changes in its ability to support marine life. In order to fully explore the wreck of the Titanic, scientists must address several problems. Discussion: which of the following statement is general, specific or suitable? Group 1 1) American food is terrible. 2) American food is tasteles

10、s and greasy because Americans use too many canned, frozen, and packaged foods and because everything is fried in oil or butter. 3) American food is tasteless and greasy. (too general) (too specific) (suitable) Group 2 1) Many voters supported the candidate. 2) Many voters passively supported the ca

11、ndidate. Group 3 1) To play any kind of musical instrument, one needs to know something about the instrument. 2) TO play any kind of drum requires a good sense of rhythm. (too general) (too general) (suitable) (suitable) Here are some examples of sentences that cannot be used as topic sentences. Can

12、 you figure out why they are inappropriate? 1) My hometown is famous because it is located by Wheaton River, which is very wide, and because it is built near an unusually steep hill called Wheaton Hill. Analysis: The problem with this sentence is that it contains too many details. Topic sentences ar

13、e general, and details should appear later in the paragraph. Revised: My hometown is famous for several amazing geographical features. 2) There are two reasons why some people like to buy cars with automatic transmission and two reasons why others like cars with manual transmission. Analysis: This s

14、entence is not appropriate as a topic sentence because it mentions two topics, not just one. Paragraphs are usually about one main thing and so their topic sentences should also be about only one main thing. Revised: a) There are two reasons why some people like to buy cars with automatic transmissi

15、on. OR (in a different paragraph): b) There are two reasons why some people like cars with manual transmission. 3) Clouds are white. Analysis The problem with this sentence is that it is too general. It is also very boring! Would you like to read a paragraph with this topic sentence? Most people would not. Revised The shapes of clouds are determined by various factors. Thank you !Thank you ! Assignment Group Work Design a quiz paper concerning the topic sentence four members in a group each paper consists of five problems the five problems can be in differe