高二 Unit13 教案（Period 2）_高二英语教案
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The Second Period
Teaching Aims:
1.Learn and master the following words and phrases:
cube,property,range,medium,relatively,dissolve,pure,relationship,mass,float,absorb,bottom,all the way,that is,add…to,mix with,take advantage of,manage to do
2.Improve the students’ reading ability.
3.Enable the students to realize that it is important to protect the water on our planet.
Teaching Important Points:
1.Improve the students’ reading ability.
2.Master the following phrases:
all the way,that is,mix with,take advantage of,manage to do
Teaching Difficult Point:
How to make the students understand the reading passage better.
Teaching Methods:
www.duosi8.com1.Discussion before reading to make the students interested in what they will learn.
2.Fast reading to get a general idea of the text.
3.Discussion after reading to make students understand what they’ve learned better.
4.Careful reading to get the detailed information in the text.
Teaching Aids:
1.the multimedia
2.the blackboard
Teaching Procedures:
CStep Ⅰ Greetings and Revision
(Greet the whole class as usual.)
T:Yesterday we learnt something about water.Now who can tell me what you learned yesterday?
S1:I learned that water is very important to all the living things on the earth.
T:OK,can you give me the reason why it is important?
www.duosi8.comS2:Water can be used to wash clothing,to made electricity,to water the farm and so on.Of course,every day we must drink enough water.So water is very important.
T:Anything else?
S3:I know something about water.For example,from the experiments we made yesterday,I know vegetable oil can’t be dissolved by water.
CStep Ⅱ Pre-reading and Reading
T:OK.Thank you for your answers to my questions.As we all know,we can’t live without water.But do you know what makes water so important to all the living things?
Ss:No,we don’t know.
T:Maybe we can get the answer to the question after reading the article for today.Before you read,first let’s learn the new words and phrases in the passage.
(Teacher deals with the new words with the whole class.)
T:Now please read the passage quickly to get the general idea and try to use the following structures to make six questions.
(Teacher uses multimedia to show the structures on the screen.)
www.duosi8.com1.What is/are ______?
2.What does ______ look like?
3.What are different parts of ______?
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