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PRACTICE FOR UNIT 10 – GRADE 7

LISTENING

A.Listen and decide if each statement is true (T) or false (F).

No.

Statement

True or False

1

There are many elements affecting the

amount of CO

2

a tree can absorb.

2

Dry cleaners damage the environment with

‘solvents’.

3

The degree of temperature of washing

machine doesn’t casue any problem.

4

Energy efficient light bulbs use is as the

same as ordinary ones.

B.Listen again and answer the questions.

1. How much CO

2

is emitted to the atmosphere when a jet flies for a mile?



________________________________________________________________

2. What factors influence the amount of CO

2

a tree can absorb?



________________________________________________________________

3. What is the most effective way to use a washing machine?



________________________________________________________________

4. How many percents that energy efficient light bulbs use less than ordinary ones?



________________________________________________________________

PRONUNCIATIONS

Choose the word whose underlined part is pronounced differently from the other

three in each question.

1.

A. manages

B. laughs

C. photographs

D. makes

2.

A. claimed

B. warned

C. occurred

D. existed

3.

A. cotton

B. bottle

C. cold

D. common

4.

A. country

B. cover

C. economical

D. ceiling