教学设计方案 Lesson 70
Step 1 Revision
1 Check the homework exercises.
2 Get Ss to tell each other either the story of Fred Pearson, or to tell each
other some of the reasons for taking a part-time job.
Step 2 Presentation
SB Page 33, Part 1. Get Ss to talk about the picture and describe what they can
see, Ask Ss to list some of the gases in the air we breathe. In this way, you can
teach the key-word oxygen. Write compressed air on the Bb and teach the meaning.
(Air is compressed by a machine and supplied under pressure through a pipe to
machines.)
Step 3 Reading for general understanding
Read aloud the two comprehension questions. Allow the Ss enough time to read
the text and write down the answers. Put them in pairs to discuss their answers,
then check the answers with the class. (1 In a ship which was in a port in Scotland
for repairs. 2 A worker fixed the air-line to a supply of oxygen instead of
compressed air.)
Step 4 Reading
Wb Lesson 70, Ex. 1. Go through the exercise and make sure the Ss know what to
do. Let them read the whole passage carefully and answer thequestions, working in
pairs or small groups. Check the answers with the whole class. This is a good time
to deal with any language problems.
Step 5 Problem solving
SB Page 34, Part 2. Get the Ss to do the task in pairs. See which pair of Ss
can find out the correct answer before the others. (The man actually connected the
air-line to the oxygen supply line. j
Step 6 Comprehension
SB Page 34, Part 3. Get Ss to read the story again and do this exercise
individually. Then get them to check their answers in pairs.
Step 7 Reading aloud
Speech Cassette Lesson 70. Play the tape of the passage for the Ss to listen
and follow. Play the tape of part of the passage once more; this time the Ss listen
and repeat. Pay attention to stress and intonation, and the sentence stress of
longer sentences.
Step 8 Workbook
Wb Lesson 70, Exx. 1-3.
Give the Ss some time to think about the questions in Ex. 1 and decide which
answers to choose. Then check the answers with the whole class.
Ex. 2 revises verbal phrases. Let Ss work in pairs first. Then call out some Ss
to give the complete sentences and put them into Chinese.
For Ex. 3, get Ss to do it in pairs first and then check the answers with the
whole class.
Homework
Read the passage again. Try to tell the story.
Finish off the Workbook exercises.
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