Lesson 42
Step 1 Revision
1 Revise the meaning of the word invention. See if the Ss can remember all the inventions that you discussed in the last lesson.
2 Play the guessing game： one student describes an invention and the rest of the class try to guess What it is.
Step 2 Presentation
SB page 42. Tell the Ss Look at the picture. What can you see？ Do you know who this boy is？ Yes， Edison. His full name was Thomas Edison. （Tom is the short for Thomas.） He was born in 1847 and died in 1931.He was a great inventor.
Then say Today we're going to read a story about this great inventor. Can you guess what an inventor is？ Yes， an inventor is someone who makes new inventions.
Get the Ss to carry out the scanning exercise at the topof the page. The answer is： because the teacher couldn't answer the boy's questions.
Introduce the story about Edison as briefly as Wb Ex. 4 and present some of the new language items such as strange， pupil， become/be interested in， send away.
Step 3 Reading
Let the Ss read the story again， more slowly. Tell them Don't worry about new words， but try to guess their meaning.
Then Wb Lesson 42， Ex. 1. Do the first two questions with the whole class， then let the Ss work in pairs. The answers are： 1， 5， 6 are true； 2， 3， 4 are false. See if the Ss can correct the false answers. SB page 42. Speech Cassette Lesson 42. Books open. Play the tape and pause it from time to time. Tell the Ss to repeat the last sentence they heard. You can ask individual Ss， pairs， groups， rows or the whole class. （It's quicker if you use a suitable gesture.）
Discuss new words and other problems. Note that build it yourself = build it by yourself.
Step 4 Ask and answer
Wb Ex. 2. Allow the Ss to read the story again and answer the questions alone or in pairs. They should make a note of their answers. Check the answers with the whole class.
Some of the answers to Ex. 2 are： 1 He wanted to have chicks like hens. 3 Because he asked a lot of strange questions and the teacher could not answer all of them.
Step 5 Workbook
Wb Ex. 3. Let the Ss work alone and see who can find the right answers. The answers are：
1 VEGETABLE； 2 MONEY； 3 STRANGE； 4 PUPIL； 5 LAB； 6 HEN
For Ex. 4， do the first one as an example and then let the Ss work in pairs.
The answers to Ex. 4 are： for； During； strange； about； pupil； sent； away； taught； interested； grew； sold； built.
Step 6 Revision
If time allows， get the Ss to retell the story so far， using the questions in Wb Lesson 42，
Ex. 2 as a guide.
Homework
Finish off the Workbook exercises.
Write down the answers of Ex. 4 in the exercise book. Read the end of the story on SB page 43.
