unit 3(cont)
period 18: Language focus

1.Vocabulary
-(to) empty :
-(to) tidy :
-(to) sweep:
-(to) dust :
-(to) fail :
-(a) fish tank :
-garbage (n):
đổ,làm trống rỗng
sắp xếp cho ngăn nắp
quét
phủi bụi
trượt,hỏng
bể cá
rác
(to) empty
(to) tidy
(to) sweep
(to) dust
(to) fail
(a) fish tank
garbage (n)
Unit 3(cont)
period 18: Language focus

*Must: Phải (diễn tả sự bắt buộc, xuất phát từ tình cảm, mong muốn của bản thân người nói)
*Have to: Phải(có tính chất bắt buộc nhưng do ngoại cảnh đem đến, ko phải tự người nói mong muốn)
* Ought to = should : nên (Khuyên ai nên làm gì)
Unit 3(cont)
period 18: Language focus

S + must/have to/has to+ Vinf
+ Musn`t: điều cấm
( không được làm gì)
+ Don`t /doesn`t have to ( không phải làm gì)
Unit 3(cont)
period 18: Language focus

Answer Ex1P34
1. must/have to tidy
2. have to/must dust
3. must/have to sweep
4. must/have to clean
5. have to/must empty
6. must/have to feed
Unit 3(cont)
period 18: Language focus

Answer Ex 2P35
b. You ought to get up earlier.
c. You ought to eat more fruit and vegetable.You oughtn`t to eat a lot of meat.
d. You ought to go to the dentist`s
Unit 3(cont)
period 18: Language focus

Answer Ex 4 P36
b. Why did Nam have to cook dinner?
Because his mother was home late.
c.Why did Mrs Vui come home late?
Because she had to come to see grandmother.
d. Why did Ha fail her English exam?
Because she played video games, she didn`t learn for her exam
e. Why didn`t Nga go to the movies?
Because she had to do her chores.
Unit 3(cont)
period 18: Language focus

Exercise 1: Complete the sentence with “Must” or “Have to”
Vietnamese children..................wear uniform when they go to school.
This is a terrible party.We.................go home.
If there are no taxis we’ll..................walk.
You really..............hurry up,Vicky.We don’t want to be late.
have to
have to
must
must
Unit 3(cont)
period 18: Language focus

Exercise 2:Fill in the blank with "Mustn`t" or"don`t/doesn`t have to"
Cars............. park in front of the entrance.
They ..........................work on Saturday.
Visitors.....................feed the animals.
You.................touch that switch.It`s very dangerous.
musn’t
don’t have to
musn’t
musn’t
Unit 3(cont)
Period 18: Language focus

Exercise 3: Give advice with "ought to/oughtn`t to
I feel sick (go to the doctor)
............................................................
b.Minh looks very tired (go to bed late)
............................................................
You ought to go to see the doctor
He oughtn’t to go to bed late
Unit 3(cont)
Period 18: Language focus

Unit 3(cont)
Period 18: Language focus

Exercise 4:Make " Why"questions for the following sentences:
a.I had to go to the police station last week.
...............................................................................................
b.Children musn’t see that film.
.............................................................
Why did you have to go to the police station last week?
Why musn’t children see that film?
Unit 3(cont)
Period 18: Language focus

* Model Verbs: + Must
+ have to
+ ought to
* Why- Because.
Remember