Unit 7 Reading Vocabulary

An extremely difficult and exhausting task.

• transcontinental

• grueling

• incentive

• isolated

People's children and grandchildren.

• recruiting

• incentive

• descendants

• roamed

Business people who make lots of money.

• transcontinental

• plentiful

• set a record

• tycoons

Something that is terribly harmful

• roamed

• devastating

• descendants

• incentive

More than enough of something

• plentiful

• set a record

• grueling

• testifying

A reward or reason to do something

• roamed

• isolated

• incentive

• set a record

To wander or travel freely

• tycoons

• descendants

• recruiting

• roamed

Stretching across a whole continent.

• plentiful

• transcontinental

• grueling

• roamed

Isolated means to be kept away from other people and things.

• True

• False

Telling what you know, usually under oath in a court of law.

• isolated

• testifying

• incentive

• set a record