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.