Unit 2. Heat and Temperature

Speak Up! Discuss these questions with a partner.

F Messi scores!

DThe psychology lectureisat 12 o’clock.

A What are you looking at?

Grammar exercises

Exercise A. Read the sentences and decide if they are examples of the Present Simple or the Present Continuous.

b I visit my elderly parents every week.

c He is always telling me what to do.

e Helen lives in the city centre.

g We are going to the science museum next week.

h She is getting more and more about her health.

i The adult human brain weighs 1.3 kilograms.

j This week we are studying energy.

k In the photo, two people are arguing.

Exercise B. Match the sentences in A with the uses 1 – 11. Then complete the headings.

Uses of the _________________________________________tense.

1. scientific facts and general truths

2. permanent situations

3. habits and repeated actions

4. timetabled and scheduled events

5. narratives (stories, jokes, plots, commentaries, etc.)

Uses of the _________________________________________tense.

6. something happening now

7. temporary situations

8. plans for the future

9. annoying habits (with always, continually, forever, etc.)

10. changing situations (often used with comparatives)

11. what is happening in a picture

Think about some machines or appliances you’re familiar with. What sources of energy do they convert? What forms of useful energy and waste energy are produced?

Text A Text B

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