$1.$ than

→ Vì có better (so sánh hơn) nên ta dùng than

$2.$ as 

→ So sánh bằng: 

Công thức: S + be/ V + adj/ adv + as + noun/ pronoun

$3.$ more

→ So sánh bằng với tính từ dài ta dùng more + adj/adv

$4.$ than

→ Với tính từ có 2 âm tiết kết thúc bằng y ta đổi thành i rồi thêm -er

$5.$ more

$6.$ than

$7.$ as

$8.$ than

___________________________________________-

$V$

$1.$ best

→ So sánh nhất:

Tính từ ngắn : the ajd-est

$2.$ happiest

$3.$ faster (vì có than)

$4.$ more colorful

$5.$ better

→ Trường hợp đặc biệt: so sánh hơn của good là better

$6.$ good

$7.$ least

$8.$ prettiest

$9.$ the best

$10.$ sicker

→ So sánh kép

$1.$ Đồng tiến: càng... càng

Short Adj/ Adv: The adj/ adv -er + S$_{1}$ + V$_{1}$ , the more + N + S$_{2}$ + V$_{2}$ 

Ex: The older he is, the weaker he becomes.

IV complete the sentences

1 than                         2 as

3 more                     4 than

5 more               6 than  

7 as                             8 than 

V choose the best ...

1. Of the four dresses, I like the red one (better/ best).

2. Pat's car is (faster/ fastest) than Dan's.

3. John is (less/ the least) athletic of all the men.

4. Does Fred feel (weller/ better) today than he did yesterday?

5. My cat is the (prettier/ prettiest) of the two.

6. This vegetable soup tastes very (good/ best).

7. David is the (happier/ happiest) person that we know.

8. This summer is (the better/ the best) of the pair.

9. Jim has as (few/ fewer) opportunities to play tennis as I do.

10. The museum is (the further/ the furthest) away of the three buildings.