Welcome to
Our Class
Presented by: Nguyen Thi Tuyen
SOURCES OF ENERGY
Period 81: A CLOSER LOOK 1
Unit 10 :
I.Vocabulary:
- limited (a) :
- harmful (a) :
- exhaustible (a) :
- abundant (a) :
giới hạn, hạn chế
có hại
có thể cạn kiệt
nhiều, phong phú
- available (a):
có sẵn để dùng
* Checking vocabulary
- limited (a) :
- harmful (a) :
- exhaustible (a) :
- abundant (a) :
giới hạn, hạn chế
có hại
có thể cạn kiệt
nhiều, phong phú
- available (a) :
có sẵn để dùng
 /ˈlɪm.ɪ.t̬ɪd/
 /əˈbʌn.dənt/
/ig`zɔ:stəbl/
/`hɑ:mful/
/ə`veiləbl/
II.Practice:
A
B
a. polluting
e. dangerous
f. expensive
6.safe
2.abundant
* Match the words in A with their opposites in B.
4.clean
5.renewable
1.unlimited
3.cheap
b. limited
c. non- renewable
d.exhausted/exhaustible
1. Matching
Answer keys : 1b, 2d, 3f, 4a, 5c, 6e
Example: 1b
KIM’S GAME
What saurces of energy can you see in the video ?
Answer keys
wind
water/ hydro
solar
biogas
nuclear
coal
oil
gas
What are their advantages and disadvantages ?
limited
unlimited
harmful
renewable
non-renewable
convenient
exhaustible dangerous abundant
safe
clean
cheap
available
expensive
abundant
2.Put the words below into the table to describle the types of energy: (Ex 1/40)
not available
abundant, unlimited
2.Put the words below into the table to describle the types of energy: (Ex 1/40)
not available
abundant, unlimited
clean and safe
renewable, clean, safe
renewable, safe, clean
renewable, clean
abundant
expensive, not available
expensive
harmful, polluting
expensive, dangerous
harmful, exhaustible,
polluting
3. Compare your answer with a partner: (Ex 2/40)
A: I think solar is renewable.
B : Me too. I also think it is clean and safe.
A: solar / renewable.
B: clean/ safe.
Example:
3. Compare your answer with a partner: (Ex 2/40)
A: Coal/ abundant
B: harmful /polluting
A: Biogas/ renewable
B : abundant/ cheap
A: Wind/ renewable
B : abundant/ cheap
A:Nuclear/ renewable.
B:expensive/dangerous
A: I think is .
B : Me too. (But)I think it is and .
1
2
3
4
4. Complete these sentences, using the words in 1.( Ex 3 P 40 )
1. ………………energy is renewable, Moreover, it is clean and …………...
2. Using coal is polluting, and it is. …………………….
3. …………… power is abundant. It is also …………… and safe.
4. Nuclear energy is renewable and clean. But it is ………………… and ……………….
Solar
safe
non-renewable
Wind
clean
expensive
dangerous
II.PRONUNCIATION
Stress in the three sylable words

In three syllable words . The general rule are:
1.Với động từ
Trọng âm thường rơi vào âm tiết thứ hai nếu âm tiết cuối chứa một nguyên âm ngắn và kết thúc âm tiêt không quá một phụ âm.
Ex: en’counter de’termine

Trọng âm thường rơi vào âm tiết thứ ba nếu âm tiết này chứa một nguyên âm dài hoặc một nguyên âm đôi hoặc tận cùng bằng hai phụ âm trở lên
Ex: enter’tain Corre’spond
2. với danh từ và tính từ
Trọng âm rơi vào âm tiết thứ nhất khi âm tiết thứ 2 và 3 là nguyên âm ngắn
Ex: ‘Industry ‘envelope
Trọng âm rơi âm tiết thứ 2 khi âm tiết thứ 2 là nguyên âm dài hoặc nguyên âm đôi . Âm tiết thứ nhất và thứ 3 là một nguyên âm ngắn .
Ex : po’tato di’saster
3.Một số trường hợp khác
. Khi thêm các hậu tố sau thì trọng âm từ chính không thay đổi: -ous, -ful, -ed, -ly
-ment, -ness, ...
Ex: ‘Dangerous
‘Limited
Các từ có tận cùng là: -tion, -sion, -ity, -ety, -ic, -ical, -ous, -ive, -ian, -al, -ient thì trọng âm rơi trước những từ này.
Ex:sug’gestion geo’graphic ‘critical
‘plentyful
III. Pronunciation :
/ˈdeɪn.dʒɚ.əs/
/ɪkˈspen.sɪv/
Stress in the three syllable words :
Example:
Ooo
oOo
dangerous
expensive
Ooo
oOo
III. Pronunciation
4.Listen and repeat :
dangerous enormous limited
easily expensive plentiful
abundant energy convenient
4. Listen and repeat. Which words are stressed on the first syllable and which ones are stressed on the second syllable? Put them in the appropriate columns.


dangerous
expensive
enormous
limited
easily
abuntdant
energy
plentiful
convenient
dangerous
II. Pronunciation
4. Which words are stressed on the first syllable and which ones are stressed on the second syllable? Put them in the appropriate columns.
dangerous enormous limited
easily expensive plentiful
abundant energy convenient
II. Pronunciation
4. Which words are stressed on the first syllable and which ones are stressed on the second syllable? Put them in the appropriate columns.
/ˈdeɪn.dʒɚ.əs/
/ɪkˈspen.sɪv/
 /əˈbʌn.dənt/
 /kənˈviː.ni.ənt/
 /ɪˈnɔː.məs/
/ˈplen.t̬ɪ.fəl/
 /ˈlɪm.ɪ.t̬ɪd/
/ˈiː.zəl.i/
/ˈen.ɚ.dʒi/
5.Read the following sentences and mark(’) the stressed syllable in the underlined words. Then listen, check and repeat.
Coal will be replaced by a’nother re’newable source.
Wind power is con’venient and a’bundant.
Natural gas is ‘limited and it is harmful to the en’vironment.
Solar energy is ‘plentiful and it can be replaced ‘easily.
Nuclear power is ex’pensive and ‘dangerous.
another
renewable
convenient
abundant
limited
environment
plentiful
easily
expensive
dangerous.
* Discusion
1.What should we do to save the energy ?
2.What types of energy should we use to protect the environment in the future?
Homework:
1. Learn new words by heart
2. Do A1,2 (p. 29), B1,2 (p. 30) workbook
3. Prepare for A closer look 2.
Thanks for your attention – goodbye
The End