Listening and Speaking 3 Unit 4

The controlled use of fire dramatically changed the lives of our __________.

• animals

• ancestors

• relatives

• adapted

Cooking food lead to increased ________ and overall health.

• nutrition

• taste

• ancestors

• health

Cooking also helped to _________ food allowing it to be kept and used for several days.

• nutrition

• protect

• preserve

• keep

Fire provided ____________ from wild animals while sleeping at night.

• protected

• safe

• keeping safety

• protection

Cooking food allowed people to digest more ________ than they could from eating raw food.

• nutrients

• calories

• nutrition

• taste

A forest fire can sweep through an open area quickly and __________ almost everything.

• damage

• determine

• destroy

• impact

Most people think the best response to a fire is to _________ it as quickly as possible.

• stop

• add fuel to

• extinguish

• distinguish

One insect that benefits from fires and has _________ well is the blue beetle.

• adopted

• adapted

• adaptation

• adored

There is a clear _________ between burning fossil fuels and global warming.

• link

• option

• lesson

• connect

It's easier to __________ a familiar routine, than to start a new one.

• maintains

• maintenance

• maintain

• maintained