大学英语写作教程重点

1.段落解释：
is a unit of thought composed of sentences,smaller units of thought,that relate to a single topic.Paragraph divisions serve two very useful functions 2.A good paragraph is composed 组成 in such a way that it has :
each
idea with nothing in the paragraph not covered by the topic
it explores the main idea explicitly and
concretely,with plenty of details,examples,and explanations
3.has sound internal structure.The qualities that indicate sound internal structure are unity,coherence,and completeness.
4.怎样做到内容一致An excellent way of achieving unity
is by means of the topic sentence.Properly used,the topic sentence forces the writer to adhere to and to sustain the point he is trying to establish
5.标题句 the topic sentence properly used can achieve unity in the paragraph,which indicate the importance of the topic sentence;②the topic sentence
6.第二个写作常识
In short,a good topic sentence has a limited subject and a sharp focus,namely,a good topic sentence is not too general nor too narrow.A topic sentence that is too general requires much more than a paragraph to develop it.A coherence is connection and consistency.A coherent paragraph is one in which all the sentence are related logically and grammatically to make a whole that allows the reader to follow the writer’s train of thought step by step
8．第三个写作常识 Just as topic sentences
help readers follow our ideas,other signals also help them understand what we have to say.When we write and when we revise,look for the areas that seem choppy or unconnected —that lack coherence.We can establish better coherence by using the following devices:pronoun reference,repetition ,and in a paragraph means that the topic is adequately developed by details,explanations,definitions,evidences,and the like,so that the reader is not left with only a fuzzy idea of what the writer means
1第四个写作常识：Development of the main idea, then, is like enlarging a photograph to make the details clearer. So, development in the paragraph is as important as unity and coherence between skillful development helps us to stick to our subject and focus and to keep up the sense of oneness.
2Inductive Pattern (归纳法概念)：In developing a paragraph by means of the inductive pattern of reasoning the writer presents particular instances of a like kind and leads them into valid generalization which serves as his topic sentence.
3Deductive Pattern (演绎法概念)：In developing a paragraph by means of the deductive pattern the writer begins with a generalization(the topic sentence) and proceeds with specific elaboration or application of the general idea.
4Inductive-deductive Pattern(归纳演绎法)：As the name indicates, in developing a paragraph by means of inductive-deductive pattern the writer first presents particular instances and a resulting generalization, then applies the generalization to a new instance. 5第五个写作常识：Sequences of development are not independent of types of development. The most important sequences of development are general to particular, particular to general, climactic, chronological, and spatial.
6Climactic Sequence (层递顺序)：In a climactic sequence, the most intense or highest point of interest is saved for the final sentence, which may be, but is not necessarily, the topic sentence.
7.Chronological Sequence (时间顺序):A chronological sequence is one in which earlier things precede later things; items are listed in the order in which they occur in time. The most obvious use of a chronological sequence is in telling a story. 8Spatial Sequence (空间顺序)：A spatial sequence is used in descriptions of various types. It starts the reader at a particular point and then moves logically in some direction, from one place to another.
9第六个写作常识：The type of development is the way in which the main idea is supported-by details, definitions, statements of cause and effect, and so on.
10段落展开方式：Among the most important types of paragraph development are development by detail, comparison and contrast, process, classification and partition, cause and effect, definition, and mixed development.
11Development by Comparison and Contrast (比较和对比)：①a comparison shows how two or more things are alike; ②a contrast shows how they are different.
12Development by Division and Classification (分类法和归类法)：Dividing and classifying information is central to the writing process. When we divide, we begin with a whole, a complete body of information or one idea, and break it into its parts. When we classify, we begin with many small observations and sort them into categories on the basis
of their similarities.
13第七个写作常识：Causal analysis involves the ability to see cause and effect relationships between two elements. In order to arrive at a cause, we need to distinguish among three kinds: necessary, sufficient and contributory.
14第八个写作常识：Definitions are particularly important for limiting the intended meaning of abstract or technical terms. There are two types of definition: formal definition and extended definition. Formal definition includes the term itself, the class it belongs to, and the details that distinguish it from other items in its class.
15第九个写作常识：As we have seen, a single paragraph often contains more than one type of development. Almost any kind of paragraph may include examples or illustrations. The important thing is to avoid switching abruptly and apparently without reason from one kind of development to another in the middle of a paragraph.
16第十个写作常识：The introduction is probably the most important part of an essay. The introduction should agree in tone and style with the rest of the essay. It should be a natural part of it, not a different construction grafted on the top.。