I. Match the names of occupations with their definitions.
1. chemist
2. archaeologist
3. software developer
4. physicist
5. explorer
6. biologist
7. inventor
8. conservationist

a. a person who has invented something
b. a person who travels to unknown places in order to find out
what is there
c. a person who works to protect the environment, plants, animals
and natural resources
d. a person who studies the buildings, graves, tools, and other
objects of people who lived in the past
e. a person who builds and creates Computer programs
f. a scientist who works with Chemicals or studies their reactions
g. a scientist who studies physics
h. a scientist who studies living things

III. Fill in the gaps with the words in the box. Then read the sentences aloud.

impossible/ uninformed/ unavailable/ unable/ unavoidable
unforeseen/ impatient/ impolite/ untidy/ immature

1. I tried to speak to the professor, but he was__________.
2. There are now fears that war is__________.
3. Kevin is so__________. His room is always a mess.
4. He was angry to find that he had been__________.
5. The boys in my class are so__________- they’re always doing silly things.
6. It’s__________ to predict the weather around here.
7. I thought she was very__________. She kept interrupting me.
8. I’m sorry I was__________ to attend the meeting.
9. Don’t be so__________! The bus will be here soon.
10. Due to__________ circumstances, the play has been cancelled.

II. Write the words from the box in the correct part of the table, according to the stress
pattern.

unfriendly/ unreasonable/ uncomfortable/ immobile/ unhurt/
impure/ impolite/ immaterial/ imperfect/ unpaid/ uncertain/
improbable/ unafraid/ impersonal/ unnecessary/ unacceptable/
impractical/ unavoidable/ untidy/ uninformed

oO
oOo
ooO
oOoo
oOooo
ooOoo

I. Write the prefix im- or un-, then put the stress on each word.
______do ______employed ______possible ______practical
easy______ ______polite patient______ ______acceptable
______limited ______movable ______mature ______decided
______expected ______proper ______moral ______natural
______balance ______important ______polluted ______healthy

VII. Supply the correct form of the words in brackets.
1. There has been communication___________ between my son and myself. (fail)
2. Don’t pay any___________ to what they say. (attend)
3. Being able to communicate___________ is the most important of all life skills. (effect)
4. All that___________ can be conveyed in a simple diagram. (inform)
5. _________with others online can be fun, as long as your teen knows how to stay safe. (chat)
6. Most schools nowadays encourage___________ teaching methods. (interact)
7. I was asked for the first and fifth___________ of my six-character password. (digital)
8. If you want to live a better life, make your life more___________. (mean)
9. Smiling and frowning are examples of facial___________. (express)
10. Video conferencing___________ people in various places to have a meeting. (able)

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