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1、
The Third Period
The General Idea of This Period
In this period we’re going to learn another reading passage.
Teaching Aims
1 .Learn and master the following words and expressions:
rust boil ordinary steam float form dissolve add to keep out of
2. Learn to describe a simple scie
2、ntific experiment.
Teaching Difficult Points
1. Enable the Ss to write a report on a scientific experiment.
2. Learn to use the new words and expressions in this part.
Teaching Methods
Reading, question and answer.
Teaching Aids
1. a tape recorder
2. a computer
3. some tes
3、t tubes, nails, Bunsen burner, balance, tongs
Teaching Procedures
Step 1 Greetings
Greet the whole class as usual.
Step 2 Revision
Show the metals learned in the last period to the class and ask them to name them in English.
Step 3 Presentation
Read the passage to find the ans
4、wers to the questions.
1. What’s the aim of the experiment?
2. What equipment do we need in order to do the experiment?
3. How long does it take to see whether iron rusts in the three cases?
4. How can we take the air out of water?
5. How can oil prevent air entering water?
(Show the q
5、uestions above on the screen.)
Step 4 Reading
Read the passage individually and then discuss in pairs or groups. It’s a good time to learn the new words and understand the meaning of the passage.
Step 5 Call back the answers from the Ss
1. It is to find if iron rusts in dry air, in air
6、－free water or in ordinary water.
2. We need some test tubes, test tube holder, cotton wool, oil and Bunsen burner.
3. A week.
4. We can take air out of water by boiling it.
5. Because oil is lighter than water, it stays on the surface of water.
Step 6 Learn the new words
1. Ask
7、the Ss to pick out the new words in Passage B. Write the words on the blackboard.
1 / 3
rust, test tubes, nails, Bunsen burner, boil, ordinary
2. Read the new words after you twice. Bring out the apparatus on the desk.
Step 7 Careful reading
T: Well. Now reread the pas
8、sage carefully to further understand it. Then work in pairs to fill in the blanks on Page 45.
Step 8 Language points
1. Add some oil to the water.
在水中加點油。
add sth. to sth. else
Add some sugar to the soup.
在湯里加點鹽。
He planned to add a room to his house.
他打算再擴建一間屋子。
Fiv
9、e added to ten makes fifteen.
五加十等于十五。
2. This will keep air out of the water.
這會使空氣不進(jìn)入水中。
keep...out of... 把……擋在外面;不讓……靠近
The dog is smelly. Keep it out of the room.
這狗身上很難聞，把它弄到屋子外面去。
Keep out of the railroad track.
請勿靠近鐵軌。
3. Iron rusts in ordinary water.
鐵在普通的水里會生銹
10、。
ordinary 一般的;普通的;平常的
in ordinary dress 穿著便服
ordinary work 平常的工作
Step 9 Practice
Complete the sentences on P46, Part 5.
Keys:1.nail 2.does not rust 3.boil;air 4.oil;air 5.iron; air
Step 10 Assignment
1. Do the experiment in groups of three after class.
2. Report a simil
11、ar experiment you have just done in the lab.
Step 11 The design of the writing on the blackboard
Module 5 A Lesson in a Lab
The Third Period
1. What’s the aim of the experiment?
2. What equipment do we need in order to do the experiment?
3. How long does it take to see whether iro
12、n rusts in the three cases?
4. How can we take the air out of water?
5. How can oil prevent air entering water?
rust, test tubes, nails, Bunsen burner, boil, ordinary
add sth. to sth. else
keep...out of...
ordinary
Step 12 Activity and Inquiry
Steps
Students’ Acting
Teacher’s Or
13、ganizing
1
Complete the description involved in some
careful reading for specific information (scanning)
and reorganize the information.
Remind the students how they usually
write up scientific experiments.
2
Complete the description on their own, and
then check their answers in pairs.
Ask the students to complete the
description on their own.
3
Give the answers.
Play the recording again.
希望對大家有所幫助，多謝您的瀏覽！
高中英語新課標(biāo)外研版必修1教案（Module 5 3rd period）
