E7-HW-U9-L1,2,3

Choose the word whose underlined part differs from the other three in pronunciation.

• watched

• played

• cleaned

• called

Choose the word whose underlined part differs from the other three in pronunciation.

• decided

• needed

• stopped

• wanted

Choose the word whose underlined part differs from the other three in pronunciation.

• polluted

• collected

• installed

• stopped

Choose the word whose underlined part differs from the other three in pronunciation.

• laughed

• cooked

• called

• washed

Choose the word that differs from the other three in the position of primary stress.

• energy

• dangerous

• pollution

• natural

Choose the word that differs from the other three in the position of primary stress.

• important

• expensive

• possible

• effective

Choose the word that differs from the other three in the position of primary stress.

• renewable

• electricity

• geothermal

• environment

Choose the word that differs from the other three in the position of primary stress.

• chemical

• comfortable

• dangerous

• pollution

Solar power is one of the most _______ energy sources.

• pollution

• polluted

• polluting

• environmentally friendly

Fossil fuels will be _______ soon if we don’t save them.

• run out

• running out

• run out of

• used up