Unit 2 : Humans and the environment

2A. Pronunciation

• /kl/, /pl/, /gr/, and /pr/

I. Write the words below into the correct column.

plane

great

clean

principal

proud

claim

clever

grace

plastic

clapping

green

grateful

practical

greeting

clothes

cliff

platform

climate

cleaner

prefer

pretend

prepare

gripping

presentation

plentiful

grass

pleasure

clarinet

classify

graduate

/kl/

/pl/

/gr/

/pr/

II. Read the following sentences and underline the words with /kl/, /pl/, /

gr/ or /pr/ sounds, and write the corresponding sound.

1. The cleaner is cleaning the classroom.

2. The club leader claims the primary goals very clearly.

3. There was plentiful plastic litter on the platform.

4. We clapped after the principal gave the greetings.

5. When the climate is fine, we often climb up the cliff and have a pleasant

picnic.

6. His presentation about green lifestyle is really gripping.

7. The grammar notes are practical for us to understand primary issues.

8. We can get practical experience from planning the clean-up activities.

9. He prepared his profile a few days previously.

10. My grandparents had a lot of pleasure on my graduation day.

2B. Vocabulary

• Human activities & the environment

I. Complete the sentences with the verbs given in the correct form.

clean up

set up

recycle

raise encourage

adopt

organise

reduce

1. Doctors try to _________ awareness of the importance of adopting a green

lifestyle.

2. We need to _________ the amount of waste you throw out every day.

3. We can prevent some diseases by _________ a healthier lifestyle.

4. Our club is going to have plans to _________ the beaches.

5. We _________ all our cans and bottles.

6. They will _________ a workshop about the benefits of green living.

7. There is a lot of work involved in _________ the campaign to recycle our waste.