I.Vocab:
faucet (n): vòi nước
(to) minimize: giảm thiểu
air -conditioner (n):máy điêù hoà nhiệt độ
electric fan (n): cái quạt điện

II.Making suggestions:
Đề nghị :
I suggest + V-ing
I think you should (not) +V-inf
Shall we + V-inf?
Why don’t we +V-inf?
Let’s + V-inf.
How about/ What about + V-ing?
* Đồng ý:
Ok.
That’s a good idea
All right.
*Không đồng ý:
-No, I don’t want to

-I prefer to V2-inf
-Let’s + V2 -inf
III.Practice:
1.Making suggestions base on the pictures
a.I think we should turn off the faucet to save water
b.Why don’t we minimize gas fire to save energy?
c. Shall we turn off the electric fan to save electricity/energy?
d.Why don’t we turn off the air- conditioner to save energy/electricity?
e.I suggest turning off the TV and the lights to save energy/electricity
f. I think we should not waste water when bathing
g.Let’s go to school by bikes instead of motorbikes to save energy
h.How about going to school by public buses instead of bikes or motorbikes?
2. Making a saving energy plan:
take a shower instead of a bath
make poster on energy saving and hang them around the school
go to school by bikes or walk
turn off the lights and the fans when we don’t need
use hydroelectric or solar energy to light
use energy-saving bulbs instead of ordinary bulbs
……………………………………………….
IV.Exercise:Viết lại các câu sau dùng động từ Suggest:
1.Peter: “Shall we have dinner with Mr Nam?”
=>Peter suggests that we should have dinner with Mr Nam
=> Peter suggests having dinner with Mr Nam
2.Hoa: “Why don’t we go for a walk?”
3.Nam: “What about going to the cinema?”
4.Na: “Shall we visit Hue citadel?”
5.Mai:“ Let’s buy some flour and make bread”
6.Huy: “How about going fishing?”