English 8
UNIT 11: SCIENCE AND TECHNOLOGY
Period 88: A CLOSER LOOK 1
Welcome to our class
VOCABULARY
study (v):
nghiên cứu
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
Activity 1. Complete the following sentences with nouns indicating people.
1. A person who gives advice is an _______.
2. A scientist who studies chemistry is a _______ .
adviser/ advisor
chemist
3. A person whose job is to design things is a _______ .
4. A person whose job is writing programmes for computers is a _______ .
5. A marine _______ is a scientist who studies.
designer
programmer
biologist
doctor chemist physicist archaeologist explorer engineer software developer conservationist
Activity 2. Write a noun from the list under each picture
chemist
software developer
engineer
physicist
doctor
conservationist
explorer
archaeologist
Who’s this?
1.
2.
3.
4.
5.
8.
7.
6.
Activity 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.
development
scientists
exploration
medical
economic
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
Activity 4. Listen and repeat the following words.
Mark the stressed syllables in the words.
unforeseen unlucky
immature unwise
impatient unhealthy
impure unhurt
impossible unlimited
Unnatural impolite
Activity 5. Put the words from 4 in the right columns.
Activity 5. Put the words from 4 in the right columns.
Activity 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 a closer look 2.