高二英语选修8教案：Unit3InventorsandinventionsPeriod2含解析

Unit 3Inventors and inventions
Period 2 Language Study
整体设计
教学内容分析
The emphasis of this period will be placed on the important new words，phrases and sentence patterns in Warming Up，Pre。

reading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language.There are altogether 43 new words and phrases in these five parts。

7 of them are marked with triangles，which shows that the students needn’t learn them by heart。

It is enough to recognize them when meeting them while reading the passage。

The other 36 should all be remembered，among which the following 7 words and expressions are even more important:call up，now and then，seize,file，distinguish，set about,convenient.They are all very useful and important。

So are the sentence pa tterns “Here was a chance for me to distinguish myself by inventing something merciful that would catch snakes but not harm them." “But monitored carefully,the snakes proved to be no trouble and all went according to plan.”“Only after you have that recogni tion can you say that you are truly an inventor。

" We ought to pay more attention to them。

三维目标设计
Knowledge and skills
1．To get the students to learn to use the following important new words and phrases freely：call up，now and then，seize，file，distinguish,set about，convenient。

2．To get the students to understand and use the following important and useful sentence patterns:
(1)Here_was_a_chance for me to distinguish myself by inventing something merciful that_would_catch_snakes_but_not_harm_them。

（2）But_monitored_carefully，the snakes proved to be no trouble and all went according to plan。

(3)Only_after you have had that recognition can_you_say that you are truly an inventor。

Process and methods
1．Referring to the textbooks，reference books or dictionaries when meeting with any problems；
2．Sharing your ideas with your classmates bravely；
3．Talking about the difficult points with your group.mates heatedly；
4．Asking the teacher for help if possible；
5．Trying hard to learn the language points by heart;
6．Practicing the language points actively。

Emotion，attitude and value
1．To stimulate students’ interest in learning English。

2．To develop students’ sense of cooperation and teamwork.
教学重点、难点
1．Important new words and expressions：call up，now and then，seize，file，distinguish，set about，convenient
2．Important and useful sentence patterns：
（1）Only.。

can you say。

..
(2）the ­ed form used as the attribute，predicative and object complement in a sentence
3．Some difficult and long sentences in the text.
教学过程
Step 1Revision
1．Check the homework exercises.
2．Ask some students to say something about the inventions.
Step 2Reading and finding
Get students to read through Warming Up，Pre。

reading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language to underline all the new words and useful expressions or collocations in these parts.Read them aloud and copy them down in the exercise book。

Step 3Exercises for useful words and expressions
1．Turn to Page 23.Go through the exercises in Discovering useful words and expressions with students and make sure they know what to do。

2．Give them several minutes to finish the exercises。

They first do them individually，and then discuss and check them with their partners。

3．Check the answers with the whole class and explain the problems they meet where necessary。

Step 4Vocabulary study
Ⅰ．简单知识扫描
1．call up(P20）
【原句再现】
When I called_up my mother in the countryside on the telephone she was very upset.
当我给住在乡下的母亲打电话的时候，她感到很心烦.
【观察探究】
（1）I called him up and told him the exciting news。

我打电话告诉他这个令人激动的消息。

(2）All the men between the ages of 18 and 25 were called up.
所有18至25岁的男性都被应召入伍。

（3）The happy laughter called up memories of my childhood.。