Using LanguageⅠppt课件教学实录

Unit 3

Computers Expository writing

张学杰

一、Teaching content：

How to write a description of the item 二、teaching priorities: 1, clear writing concept. 2, master the main points of explanatory writing. 3, master the relevant expression format and sentence. 4, learn to use the appropriate description method. 三、teaching difficulties: 1, master the relevant expression format and sentence. 2, learn to use the appropriate description method 四、Teaching hours: one class hours Teaching process 一:

Concept of the explanatory text The description of the item is to introduce an item in English. It is a kind of explanation. It requires concise text to introduce the shape, nature, structure, change, function, and characteristics of the thing. It must be intuitive, visual, and make the reader like it..

（描述物品的说明文就是用英语来介绍一件物品，是说明文的一种，要求以简明的文字介绍事物的形状、性质、构造、变化、功能和特征等，要直观、形象，使读者如临其境。）

二、Main points of explanatory writing 1. Carefully examine the question and determine the person's name. Choose the starting point. 2. Select the order of instructions. The order of description is usually the construction and use of the item. 3. Divide the priorities. If you want to introduce the complex things clearly, you also need to be clear at the level of the students, the main order is clear. 4. Sentences are diverse and vocabulary is advanced. Note that writing is not a single sentence and the vocabulary is too simple. 5. Apply the description method appropriately. Flexible choice of explanation methods: example method, comparative method and so on. 三、Writing Template (Multimedia Display 1) 四、Feelings Fan Wen (Multimedia Display 2) 五、Technical discussion

1. In essence, this article is an imaginary explanation. In explaining its function, we must pay attention to full and reasonable imagination and can not be separated from reality. 2. Explanatory texts often use the general present tense, but other tenses can also be used rationally. 3. This paper adopts the structure of "total-divided-total". The beginning of the overall introduction, in the middle of the specific introduction, and finally to make a summary. 4. Connections make the text more natural and logical. 5. Using one sentence to accurately depict the shape of the robot, it is impressive. Gold expression 要点：

（1）、Glossary (Multimedia Display 3) （2）、sentential form (Multimedia Display 4) (3)、Analysis of bright spots 

. Person: Third person. 

. Temporal: General present time. 

. Structure: The first paragraph: The overall introduction of the appearance and character of the robot;

(b) Second paragraph: specifying his duties; Third paragraph: Make a simple summary. 六、Model writing (Multimedia Display 5)