Welcome to our class
UNIT 11
Part : A CLOSER LOOK 1
Technology
I. VOCABULARY
archaeologist (n):
nhà khảo cổ
explorer (n):
người thám hiểm
conservationist (n):
Người bảo tồn thiên nhiên
marine (adj):
(thuộc về) biển
+ Look out!
- We add -er, -or, or -ist to a verb or noun to form a noun indicating people.
Example:
to learn ->
- to invent ->
- Science ->
learner
inventor
scientist
1. to work 
2. to visit 
3. art 
4. to retail 
5. participate 
worker
visitor
artist
retailer:người bán lẻ
participant
adviser/ advisor
chemist
1. Complete the following sentences with nouns indicating people
designer
programmer
Biologist
2. Write a noun from the list under each picture
1. chemist
2. software developer
3. engineer
4. physicist
5. doctor
6. conservationist
7. explorer
8. archaeologist
3. Give the correct form of the words in brackets.
1. Every day we hear about new (develop) ______ in science and technology.
2. Einstein was one of the greatest (science) ______ in the world.
3. The USA is a world leader in space (explore) ______ .
4. Advances in (medicine) ______ science will help people live longer in the future.
5. There is a link between (economy) _________ development and the environment.
developments
scientists
exploration
medical
economic
II. Pronunciation:
Stress in words starting with un- and im-
- When we add the prefix un- or im- (meaning ‘not’) to a root word, the stress of the word does not normally change.
Example:
- `friendly → un`friendly
- `probable → im`probable
Note: When we add the prefix un- or im- to a one-syllable word, the stress falls on the root word.
Example: - fair → un`fair
- pure → im`pure
4. Listen and repeat the following words. Mark the stressed syllables in the words.
5. Put the words from 4 in the right columns.
Unwise
Impure
Unhurt
Unlucky
Impatient
Unnatural
Unhealthy
Impolite
Unforeseen
Immature
Impossible
Unlimited
6. Fill the gaps with one of the words in 5. Listen and check, then read the sentences.
1. The teacher said this water was ______ and couldn’t be used in our experiment.
2. Scientists have identified a link between an ______ diet and diseases.
3. This job would be ______ without the help of a computer.
4. Our natural resources are not ______ .
5. It’s no good being ______ with small children.
impure
unhealthy
impossible
unlimited
impatient
* Homework:
- Learn vocabulary by heart and rewrite them in sentences.
- Prepare for the next period.
Goodbye!
See you again!
THANKS FOR YOUR ATTENTION!