Choose the one word that best keeps the content of the text

The earliest form of air transport was

dirigible helicopter glider balloon

The scientists use balloons mostly for

experiments transportation of the instruments making calculations obtaining information about atmosphere

The position of the balloon is obtained by

satellite radio sensor radar

Montgolfier’s big bag was held over

gas gasoline smoke fire

The first air travelers were

people domestic animals objects beasts

Complete the following sentences using the content of the text.

“Free balloons” are forced to drift by …

This fact alone makes the balloons not …

If they were safer they would …

They carry instruments whose readings are …

Etienne and Joseph Montgolfier lived in …

After numerous experiments they were ready to …

The brothers had constructed a bag …

The news about the experiment reached …

The next time the balloon carried a cage with …

If the animals could live through this …

He stayed up in the air for twenty-five minutes …

A month later he and Arlandes made …

Speaking

You are going on a balloon flight. Tell who and what you would like to take with you. Follow the plan.

Place of Destination

Approximate Flight Duration

Membership

Food

Clothes

Any other things

UNIT 4

TYPES OF AIRCRAFT

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