Then check the answers with the students.

Step Ⅳ LISTENING TASK (Workbook)

Deal with the LISTENING TASK on page 67.

T: First look at the three pictures on page 67 and discuss what inventions they might be. Any opinions?

S: It looks as if it is a kind of machine moving on wheels and it can move very fast driven by a certain kind of force.

T: It's another invention by Leonardo da Vinci. Now, listen to the tape and decide if you agree with the people on the tape. What do you think it was? Fill in the chart below with the ideas of the two girls and make your own suggestions. Now please listen to the tape and fill in the chart on page 67. Make some notes while listening as follows.

Show the following.

Listening points:

The girls' suggestions:

Reasons for:

Reasons against:

My suggestion:

Then check the answers.

Step Ⅴ Homework

T: Boys and girls, today we have listened to some materials about different inventions and their functions and applications. I do hope you can listen to the materials again after class so that you can get very familiar with them. Besides, please finish the USING WORDS AND EXPRESSIONS on pages 63-64 and then preview the Reading. Here are two questions for you.

1. What is the problem talked about in the text?

2. How did the writer solve the problem? List some of the steps.