1、Unit 2 The EnvironmentGrammar and usage高二 薛红芹教材分析：M5U2语法是高中中重要的语法，也是高考的重要考点，在设计这个教案时，加入很多实例，确保学生能听懂。学情分析：学生在以前学习过得语法中，以前接触到过得知识点，考虑到学生的基础，这节语法课相对来说容易点。Teaching aims:1. Learn the functions of V-ing form in sentences.2. Enable the students to master the usage of V-ing form.3. Use what they have learnt
2、 to complete the related exercisesDifficult & Important points:1. When to use V-ing from2. How to use V-ing formTeaching methods:Deductive teaching.Discussion.Teaching aids:A projector.A computer.Teaching Procedure:Step 1 Lead inT: Tell them since they have learned the text and the language points i
3、n it, you may have found many sentences with V-ing form. Now lets read the following sentence and tell the functions of these V-ing forms in the sentences. This lesson is boring. (表语Predicative) There are sleeping students in class. (定语Attribute)Step 2 Usage of V-ing form as an adjectiveT: Tell them
4、 today they will learn the functions of the V-ing form in sentences and how to use V-ing form as an adjective or adverb. Let them look at the text books (page 28) First let the students go through the sample sentences in the group 1 and summarize the usage of Verb-ing forms as an adjective. Function
5、 as an adjective: A verb-ing form can appear before a noun. It modifies the noun as an adjective does.V-ing形式可以同形容词一样置于名词之前修饰名词。 We can sometimes put an adverb before the verb-ing form.有时V-ing形式也可用副词修饰。 A verb-ing form can appear after a noun to modify it as an attributive clause does. It can be cha
6、nged into an attributive clause.V-ing 形式亦可以同定语从句一样置于名词之后修饰名词，可以转化成定语从句。 V-ing 形式可以用作表语或宾语的补语。 T: After this, T can show them more sample sentences to help them to get a better understanding of the grammar rules and pay attention to some key points. Attribute: a running man The man running in the pic
7、ture is Liu Xiang. The man running fastest got the first place. The man who is running in the picture is Liu Xiang.(Tell them to pay attention to the position of the V-ing forms when they are used to modify a noun.)小结： V-ing形式作定语可表示动作正在进行（如例1、2）或表示和所修饰词之间有逻辑主动关系（如例3）。 单个V-ing词作定语修饰名词一般置于名词之前（如例1）；V-
8、ing词组修饰名词则置于名词之后（如例2、3），此时相当于一个定语从句（如例4）。 Object Complement: I heard the girl singing in the class room. I noticed a long queue outside the bank waiting for it to open. The baby watched his dad shaving his face with great interest. We have the fire burning all day.(Get the students focus on the word
9、s in blue and red, especially the functions and meanings of the words in red.)小结： V-ing形式作宾语补足语置于宾语之后，表示一个正在进行的动作（如例1、2、3），或强调一个过程或一种状态。（如例4） V-ing形式作宾语补足语时，往往同宾语存在逻辑主动关系。 V-ing形式作宾语补足语的常见动词： make, let, have, keep, leave, see, watch, hear, notice, find, feel 等。 (After the above, give them enough tim
10、e go over what they have learnt to make sure they have no difficulty in understanding them. Explain any questions raised by the students.) Practice:T: Ask them to fill in the blanks with the given words in the correct form. Meanwhile let them tell their functions in the sentences.1. Sixty million pe
11、ople_ (live) in rural areas are moving to the cities every year.2. The bottle _ (contain) the poison was sent to the laboratory. 3. The man _ (sit) on the platform is a professor from Wuhan University.4. The children _ (practice) playing the violin over there will give a 5. Our trip was _ (disappoin
12、t) .We did not find any unusual plants.6. I saw them _ (force) the door open with a hammer. 7. We heard them _ (quarrel) about money after the concert; they looked very angry. 8. I heard him _ (drop) lots of coins into the collecting tin. 9. You can see them _ (perform) every night this week at the
13、New Theatre. 10. The news was _ (shock). All the three boats had sunk in the storm.Step 3 Usage of V-ing form as an adverb T: Let the students look at group2 on page 28 and group 1 on page 30. Ask them discuss in pairs to summarize the following: Function as an adjective:l A verb-ing can be used aft
14、er verbs like stand, sit and lie. These two actions are happening at the same time.常用于 stand, sit, lie 等动词之后表示伴随的状态。l V-ing词组可以在句中充当时间、原因、结果、条件等状语。（Finally let them go through group3 on page 2, 8 and group2, 3, 4 on page 30. Remind them what they should pay attention to when they use V-ing forms.）小结
15、： A verb-ing has a perfect form, e.g., having done.V-ing有其完成式having done, 表示分词动作发生于主句动作之前。 表示时间状语时常同连词when, whenever, while, once, until等连用。 分词作状语时，(多置于句首)其逻辑主语同主句的主语一致且有逻辑主动关系，往往可转换为相应的状语从句。 V-ing形式的否定not要置于V-ing之前。(Make sure they have got a good understanding of the above rules and explain any que
16、stions raised by the students.) Rewrite the following sentences: Hearing the bad news, they couldnt help crying. Having received his letter, I decided to write back. Being so angry, he couldnt go to sleep. Given more attention, the trees could have grown better. Though working from morning till night, his father didnt get enough food. They came into the classroom, singing and laughing. Step 4 HomeworkDo the exercises in students workbook. Finish the left exercises in the text book after class. Preview the next period.