Unit 5 Technology
English 10 (Advanced version)
Content
Prefix
Multi-
Counter-
Un-
Present perfect passive
Used to

Prefix
Multi-: many, more than one or two
Multinational: existing in or involving many countries
Multilingual: speaking or using several different languages
Prefix
2. Counter-
contrary, opposing
Eg:
Counterattack (v): phản công
Counterclockwise (v): ngược chiều kim đồng hồ
Prefix
complementary, corresponding
Eg:
Counterpart (n): vật bổ sung, đối tác
Counterbalance (n): đối trọng
(v): làm ngang bằng

Prefix
3. Un-
In front of adjectives  not
Eg: Unhappy, unfortunate
In front of verbs  to reverse an action
Eg: Untie, undo
Present perfect passive
Review of Present perfect
Structure:



Eg: I have finished my homework.


S + have/has + V3
Eg:
My homework hasn’t been finished.
This book has been covered.
They have been took to the zoo by their father
Structure:

S + have/has + been + V3 + (by object)

Present perfect passive
Used to
I used to live in the countryside.
Ten years ago, I lived in the countryside.
Now, I don’t live in the countryside, I live in the city.
Click
My brothers used to go to school by bicycles.
Last year my brothers went to school by bicycles.
Now they go to school by bus.
Used to
Click
Used to
In the past, people used the telephone with a dial.
Now, people prefer to use the telephone with buttons.
In the past, people used to use the telephone with a dial
Click
Used to
Structure:
Used to + bare infinitive
Notice:
Did you use to live in the countryside?
I didn’t use to live in the countryside