UNIT 16 SCIENTISTS AT WORK

Lesson 1

warming up, listening and speaking

Step1.Warming up

Ask the students to look at the four photos in the book and describe what they see.

Photo 1 shows students at work in a chemistry lab.

Photo 2 shows an English book called Hamlet, a dictionary and a notebook.

Photo 3 shows two students doing an experiment.

Photo 4 shows students looking at something through a microscope.

Step2. Listening

From the four photos we know that we often do some experiments at school. But do you know how to behave in a science lab? Now let’s listen to a dialogue. It will tell us what to do and what not to do.

Listen for the first time and do Ex1.

Then check the answers with the class.

Listen for the second time and do Ex2.

Listen again,let the students check their answers.

Then check the answers with the class.

At last,listen again and let the students find out the sentences which contain the answers.

Step3.Speaking

Now let’s talk about the gre