G
G
i
i
á
á
o
oá
á
n
nt
t
i
i
ế
ế
n
n
g
gv
v
ă

- Ask one St to give remarks.
- Give remarks and marks.

2. The new lesson:
- Ask Ss to do part II, part III
and part IV at home in
advance to save time.
- Give Ss the time duration
for each part : part II: 10
1. If I had been working at the
restaurant last night, I would
have waited on your table.
2. If they had been paying
attention, they would have seen
the sign marking
3. If Carol hadn't been
studying, she would have
answered the phone.
4. If the sun hadn't been
shining, we wouldn't have gone
to the beach yesterday.
5. If the music hadn't been
playing loudly at the restaurant,
I would have heard

- Listen and read after the
teacher.
- Listen carefully and do the
task.
- Work in pairs to discuss their
answers.
1. they go to a national park to
tape again so that Ss can
check their answers.
- Ask other Ss to give
remarks.
- Check and give feedback.
2.2. Reading:
- Ask Ss to work in groups to
compare their answers.
- Ask some Ss to report his/
her answers aloud.
- Listen and check. enjoy the nature.
2. It became a national park in
1872.
3. No, it isn't. It's the world's
largest park.
4. It has about 70 geysers.
5. They mustn't pick the flowers,

- Discuss in groups.
- Answers:
a. 1. has been cleaned 2.
have been turned on 3.
are waiting
b. 1. knew 2. would
help 3. knows
c. 1. decided 2. to stay 3.
would have gone out 4.
hadn't been
- Read their writing aloud
" Dear Alex,
You will be delighted to know

- Ask some Ss to give
remarks.

3. Homework:
- Part B ( Page 65 -
workbook)
Father is giving a party to
celebrate the New Year. He has
invited some of our relatives
and his friends to make the
party a success.
I too have invited a number of
my friends in the