The document discusses the use of "must" and "mustn't" in sentences. It provides examples of things students must and mustn't do in class, a museum, library, and swimming pool. The lesson checks students' understanding, has them practice using must/mustn't, and assigns homework to make sentences using must/mustn't in their notebooks.

1. Use “Must” and “Mustn’t”
Watch the video.

3. A, You must work hard.
B, You must spend your money on treats.
C, You mustn’t blow your money.
D, You mustn’t seat on a goal.

4. Answers:
a) T
b) F
c) T
d) F
Students discuss what things they must or mustn’t
do in class.

5. Must Mustn’t
Bring a pen to class
arrive on time listen to
your teacher wear
uniform do your
homework
Fight in class cheat in
tests shout in class eat
food in class and bring
pets to class

6. Students discuss what things they
must or mustn’t do in a museum.
Answers:
You must be quiet.
You mustn’t take photos.
You must be careful.
You mustn’t touch the exhibits.
You mustn’t run around.
You must follow the rules.

7. Teacher checks form with
students
Must/mustn’t + base form / infinitive.
Feedback by nominating students to read out
their rules.
Library:
You musn’t eat or drink.
You must return the books.
You must speak quietly.
You mustn’t run.

8. Swimming pool:
You must wear a swimming costume.
You mustn’t spit.
You mustn’t run.
You must obey the lifeguards.

9. Consolidation.
- Repeat the main things in the lesion.
- Call one or two students to repeat the using of
Must/mustn’t.
Homework.
- Learn by heart the structure of grammar.
- Make 5-10 sentences use Must/mustn’t in your
notebook.

10. Members:
1. Nguyễn Văn Mỹ
2. Hoàng Quang Thiều
3. Nguyễn Thị Thu
4. Hoàng Thị Thu Phương
5. Ma Ngọc Sơn
6. Nguyễn Thị Như Quỳnh
7. Trần Thi Phương Thảo
8. Tạ Thị Sang
9. Phạm Thi Xuê
10. Đinh Thị Kim Thoa