Reading Task 1 Read the text. Complete the gaps (1-5) with the parts of sentences (A-E)

A. running on the treadmill or lifting weights is too boring
B. more and more popular as people try to recapture the fun of their youth
C. encouraging them to play children’s games
D. that is making comeback
E. to make exercise more fun for everyone involved

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere.

The rapid rise in greenhouse gases is a problem because it is changing the climate faster than some living things may be able to adapt.

Also, a new and more unpredictable climate poses unique challenges to all life.

As the mercury rises, the climate can change in unexpected ways.

In addition to sea levels rising, weather can become more extreme.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere.

The rapid rise in greenhouse gases is a problem because it is changing the climate faster than some living things may be able to adapt.

Also, a new and more unpredictable climate poses unique challenges to all life.

As the mercury rises, the climate can change in unexpected ways.

In addition to sea levels rising, weather can become more extreme.