How to write a paragraph.ppt

How to write a paragraph
论说文段落的构成
主题句
推展句:主要推展句,次要推展句
结尾句
example:
After all, technology can fail. Computers go down puter programs crash. Televisions break, and the electricity can suddenly go off. In those situations, who’s going to teach me? If I am at school, and the televisions puters stop functioning, there’s a teacher to step in and change the lesson plan. Teachers can draw on their teaching experience and be creative. Computers and televisions can’t.
What are topic sentences?
Before writing any essay or even a paragraph, it is important to think, first about the topic and then what you want to say about the topic. Most often, the topic is easy, but the question then turns to what you want to say about the topic which is the controlling idea. Topic sentences should always contain both (1) a topic and (2) a controlling idea.
Read the following topic sentences. They all contain a topic (in red) and a controlling idea (in green). When your introduction contains a clearly stated topic sentence such as one of the following, your reader will know what to expect and, therefore, understand your ideas better.
What are topic sentences?
1. People can avoid burglaries by taking certain precautions. (The precautions for?
2. There are several advantages to growing up in a small town. (The advantages of?
3. Industrial waste poured into Lake Michigan has led to dramatic changes in its ability to support marine life. (The effects of?
4. Air pollution in Mexico City is the worst in the world for a number of reasons. (The causes of? or (The effects of?
5. Effective leadership requires specific qualities that anyone can develop. (The qualities (or characteristics or traits) of?
What are topic sentences?
A topic sentence has several important functions: it substantiates or supports an essay’s thesis statement; it unifies the content of a paragraph and directs the order of the sentences; and it advises the reader of the subject to be discussed and how