Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
100

adj. scared or frightened.

afraid

100

n. the act of putting parts together to make a machine or

object.

assembly

100

n. a thin layer of ice on a surface, caused by cold air.

frost

100

n. a legal process to decide if someone broke the law.

trial

100

n. a person who shows the way or gives information.

guide

200

adj. known by many people.

famous

200

n. the presence in or introduction into the environment of a

substance which has harmful or poisonous effects.

pollution
200

adj. thinking only about oneself and not caring about

others.

selfish

200

n. doing what is right and fair.

justice

200

adv. from one side to the other.

across

300

n. a place of learning after high school where students

study for degrees and do research.

university

300

n. a building or group of buildings where goods are

manufactured or assembled chiefly by machine.

factory

300

n. the point where two streets meet or where two sides of

something join.

corner

300

v. to treat someone or something with care and kindness.

respect

300

n. a substance or material that makes up everything in the

world.

matter

400

n. a traditional story, typically involving

supernatural beings or events.

myth

400

adv. with the back leading; returning to an

earlier condition.

backwards

400

adj. expressing adverse or disapproving comments

or judgments.

critical

400

n. a sudden burst of light.

flash

400

v. to watch or see something before it is

officially released.

preview

500

adj. capable of causing death or illness if taken into

the body.

poisonous

500

n. a formal discussion where people share

different opinions.

v. to discuss different sides of a topic.

debate

500

n. a strong request for something.

v. To strongly ask for something.

demand

500

v. to carefully examine the facts of a situation.

investigate
500

n. a quicker way to get somewhere.

shortcut