Life 5 Unit 3 review

One of the biggest problems we (1)

_______________

in the next fifty years is global warming.

• will face

• are facing

Scientists predict that by the end of this century, temperatures (2)

__________________

by 4 degrees Celsius.

• will be rising

• will have risen

The invention of a super battery (3)

_________________

this problem. We currently have ways to produce electricity—like wind and solar power—that don't emit carbon dioxide, but we have no control over when they are available. But if there was a super battery that could store the energy for later use, it would be different.

• will be solving

• might solve

Elon Musk, CEO of Tesla, is confident that his company (4)

________________

produce such a battery in the near future.

• might

• is going to

In fact, he believes the energy storage market (5)

____________

. In 2014, Tesla started building a huge battery factory outside Reno, Nevada. The facility is scheduled for completion in 2020.

• is about to boom

• will be booming

1. It's not cutting-edge technology; it's a bit out-of-____, really. 

2. I see that this car run on electricity, not gas. But just out of ________, where do you recharge it?

3. It's a portable phone charger. It's a really h____ gadget, and it's very easy to carry around with you.

Order the sentence

1.  get / can't / the shower / to / I / work / .

2.  you / have / turning / the volume / tried / up / ?