Inventions + Relative Clauses

Hope English School

E 3

Lesson 4

In this lesson you will:

• Practiced speaking in the context of ' solving a problem
• listened to a sciene programme
• Learn and practice ' relative clauses'

In this lesson you will:

• Practiced speaking in the context of ' solving a problem
• listened to a sciene programme
• Learn and practice ' relative clauses'

LOOK AT THESE INVENTIONS

Think about two positive and 2 negative effects of these inventions

Electric lightbulb

TELESCOPE

POST-IT NOTES

Listening

This Tibetan man is wearing a new type of glasses. Listeng to a science programme about the glasses. Answer the questions. 1. What is a problem for many people in the world? 2. How can the glasses solve this problem? 3 In which parts of the world do people now wear the glasses?

Listen to the first half of the programme again. Number the instructions on the diagram in the correct order 1-4

__ The lense changes shape. 1. The wearer turns the wheels on each side. __ The silicione oil moves into the lense. __ The pump pushes the silicone oil through the pipe.

+ INFO

Listen to the second half of the programme again. Are the sentences true or false?

1. Joshua had to do experiments with the glasses before they worked properly.
2. the first man who used the glasses made clothes
3. The glasses are expensive to produce
4. Thirty thousand people will have the glasses by 2020

Look at these sentences from the science programme.

Which word do we use to talk about: a. A person b. A place c. A thing

1. These people live in parts of the world where there aren't many opticians
2. There is a scientist who has found a solution to the problem.
3. Joshua silver has invented glasses which don't need an optician.

Defining Relative clauses

USE: These clauses give us important information about the person, place or thing we are talking about. FORM: He is the man who (that) invented the television. This is the restaurant which (that) I told you about. That is the place where we buy our computers Tip: We can use that for people or things instead of who or which. This is less formal. Example: The person that makes the vaccine needs 200 people.