Giáo án Tiếng Anh 8 - Units 15: Computers

A. Functions

- Expressing opinions.

- Agreeing and Disagreeing.

- Completing a flow chart.

- Writing a set of instructions.

B. Grammar Points

 - The present perfect with YET and ALREADY.

 - The comparison of present perfect and past simple.

 

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YET and ALREADY.
	- The comparison of present perfect and past simple.
C. Unit allocation
Lesson 1
Getting started + Listen and read + LF 1
P. 138-139
Lesson 2
Speak
P. 139-140
Lesson 3
Listen + Write
P. 141, 144
Lesson 4
Read + language focus 2
P. 141-144
Lesson 5
Language focus 3- 4
P. 146
 Planning date:	 10/ 4 / 2011
 	 Teaching date: 11/ 4/ 2011
Period 91:
Unit 15: computers
Lesson 1:	Getting started + Listen and read p.138-139
language focus 1
I/ Aims
- To help students read the text for details.
- To help students practice seeking information.
II/ Objectives
By the end of the lesson, students will be able to:
+ understand the text for details.
+ to express what they can do with “I know how to ”.
III/ Teaching aids
	- Textbook, pictures in the textbook, tape and cassette player.
IV/ Ways of working:
	Teacher – Whole class, individuals, pair work, team work
V/ Procedures
Teachers’ activities
Students’ activities
1/ Warmer	
* Brainstorming 
Students in team make a list of how computers can help us. 
save time
The advantages of computers
2/ Pre Reading
* Pre teach vocabulary
	- a printer : (picture)	
	- a manual :	(picture)	
	- (to) connect : (translation)	
	- a plug : (real object)
	- the socket : (real object)
	- (to) guarantee : (explanation)
* Rub out and Remember to check understanding.
* True / False statements predictions
- T. asks students to predict if the following sentences are true or false
No
Statements
True
False
The printer isn’t working.
Nam has already turned the computer on.
Nam has connected the printer properly.
The manual helped them to find out the problem.
Mr. Nhat bought the computer in Ha Noi.
The printer is still under guarantee.
3/ While reading
* Checking open predictions
- Play the tape (twice)
- Let Ss practice the dialogue.
- Ask some pairs to read in front of the class.
 and check their open predictions
* Fact or opinion 	Listen and read 2 a)-f) P. 139
- Ask the class to do exercise 2 "Fact or opinion ?" 
No
Statements
Fact
Opinion
The printer isn’t working.
There shouldn’t be anything wrong with it.
I know how to connect a printer.
The manual isn’t very helpful.
I bought it in Ho Chi Minh City.
I don’t know what they can do.
4/ Post reading
Model sentences: “Yet” and “already” in the present perfect tense
Eg: 1. Have you turned it on yet, Ba?
2. I have already done it.
* “Yet” được dùng trong câu nghi vấn và câu phủ định của thì hiện tại hoàn thành. Nó thường đứng ở cuối câu. Còn “already” được dùng trong câu khẳng định và đứng giữa “have” và “past participle”.
* Gap Fill: 	Language Focus 1 P.144
- Get students to complete the dialogue, using yet and already.
Ba’s mother:	Have you finished your homework yet, Ba?
Ba:	Yes,_______________________
Ba’s mother:	Good. What about your room? Is it tidied now?
Ba:	I’m sorry, Mom ____________
__________________________________
Ba’s mother:	Bad boy, Ba. And the washing machine! Have you turned it off yet?
Ba: Don’t worry, Mom. __________
_____________________________________
Ba’s mother:	Have you called and told Aunt Le to have lunch with us today?
Ba:	Yes. ___________________________
__________ and she said she would come.
5/ Homework
Learn the new words by heart.
Doexercises in workbook.
Prepare part Speak
* Brainstorming	
Students in team make a list of how computers can help us.
 are easy for keeping information
help us learn interesting
The advantages of computers
save time	
are very quick in giving answers to our questions
I. Vocabulary
	- a printer : 	máy in
	- a manual : sách hướng dẫn sử dụng	
	- (to) connect : kết nối	
	- a plug : phích cắm
	- the socket : ['sɔkit] : 
	- (to) guarantee : bảo hành
* True / False statements predictions	
- Students predict if the following sentences are true or false
II. Practice
 Look at book and listen to the tape.
- Work in pairs to read the dialogue and check their open predictions
	Answer key
No
Statements
True
False
The printer isn’t working.
ỹ
Nam has already turned the computer on.
ỹ
Nam has connected the printer properly.
ỹ
The manual helped them to find out the problem.
ỹ
Mr. Nhat bought the computer in Ha Noi.
ỹ
The printer is still under guarantee.
ỹ
1. Fact or opinion 	Listen and read 2 a)-f)P.139
- Work in groups to do exercise.
- Share answers with other groups.
- Give answers in front of the class.
- Check and copy the right answers
Answer key
No
Statements
Fact
Opinion
The printer isn’t working.
ỹ
There shouldn’t be anything wrong with it.
ỹ
I know how to connect a printer.
ỹ
The manual isn’t very helpful.
ỹ
I bought it in Ho Chi Minh City.
ỹ
I don’t know what they can do.
ỹ
2. Language Focus 1 P.144
- Students listen and write it up
- Students complete the dialogue, using yet and already.
Answer key
Ba’s mother:	Have you finished your homework yet, Ba?
Ba:	Yes, I have finished it already.
Ba’s mother:	Good. What about your room? Is it tidied now?
Ba:	I’m sorry, Mom. I haven’t cleaned and tidied it yet.
Ba’s mother:	Bad boy, Ba. And the washing machine! Have you turned it off yet?
Ba: Don’t worry, Mom. I have already turned off the washing machine.
Ba’s mother:	Have you called and told Aunt Le to have lunch with us today?
Ba:	Yes. I’ve already called and told Aunt Le to
have lunch, and she said she would come.
III. Homework
Learn the new words by heart.
Doexercises in workbook.
Prepare part Speak
__________// 0 // 0 // 0 //_________
Planning date:	10/ 4 / 2011
 	 Teaching date: 14/ 4/ 2011
Period 92:
Unit 15: computers
Lesson 2:	 speak p.139-140
I/ Aims
To help students practice expressing agreement and disagreement.
II/ Objectives
- By the end of the lesson, students will be able to express agreement and disagreement with some common expressions.
III/ Teaching aids
	- Textbook, pictures in the textbook, workbook.
IV/ Ways of working:
	Teacher – Whole class, individuals, pair work, team work
V/ Procedures
Teachers’ activities
Students’ activities
1. Warm up: (3 ms)
- Hold the class to play "Networks" about computer
2. Pre-speaking: (12 ms)
* Presentation
	- Expressions for opinions, agreements, disagreements. (P.140)
- Hang extra-board to introduce the main structures of the lesson: (Give and respond to opinions)
Opinion
Agreement
Degree of agreement
Dis agreement
I like ...
So do I
I don't like...
I agree
I agree, but...
I disagree
I think ...
You' re right
Yes, but on the other hand
I can't agree with ....
I feel ....
Neither do I
I don't believe ...
- Ask Ss to work in pairs to use the words in the table to practice by doing matching
- Present some new words:
Entertaining : (explanation)
Unhealthy: (explanation)
Challenging: (Translation)
Time- consuming: (situation).
Monitor: (picture)	
Screen: (picture)
Mouse: (real object)	
Adjust the knob: (Translation)
* Matching to check understanding.
3. While-speaking: (14 ms)
- Hold the class to practice
- Ask Ss to practice in front of the class.
- Give suggested answers.
a)A: I think driving a car can be dangerous.
B: I agree, but there won't be a problem if you are careful.
A: I think learning to drive a car is challenging.
B: You are right, It is difficult to get used to driving in the streets especially at rush hours.
4. Post-speaking: (9 ms)
- Ask Ss to look at the exercise 2 in the text book and listen to the explanation of the order.
- Ask some pairs practice in front of the class.
5. Homework (2ms)
 Ask Ss to:
- make 5 sentences about computer, beginning with I think ... / I don't think ...
- Do exercises in the workbook.
 - Students work in groups to list things about computers.
 Save time. Help us relaxComputers
- Listen to the T and copy the structures into notebook.
- Work in pairs to practice matching
+ Driving/ learning to drive a car.
+ Comic books/ reading comic books.
+ Walking/ driving in the rain.
+ Foreign food/ eating foreign food
I. Vocabulary
- Entertaining - giải trí
- Unhealthy: không khoẻ mạnh
- Challenging: đầy thử thách.
- Time- consuming: tốn thời gian.
- Monitor: màn hình.	
- Screen: màn hình
- Mouse: con chuột máy tính	
- Adjust the knob: điều chỉng nút vặn.
- Read and copy the words.
II. Practice
1. Picture Cue Drill	Speak 1 a)-d) P.139
- Work in pairs, use the pictures and adjectives in the box to express and respond to opinion.
- Practice in front of the class.
a)A: I think driving a car can be dangerous.
B: I agree, but there won't be a problem if you are careful.
A: I think learning to drive a car is challenging.
B: You are right, It is difficult to get used to driving in the streets especially at rush hours.
b) A: I don't like reading comic books. They are so boring.
B: Neither do I. I prefer reading fairy tales.
A: Reading comic book is entertaining.
B: Yes, But on the other hand It is time- consuming.
c)
A: Working in the rain is fun.	
B: I like walking in the rain, too. It fells so refreshing.
2. Make similar dialogues Speak 2 P.140
- Look at the dialogue.
- Work in pairs to practice making dialogues about the common computer ' s problems .
A: I'm having a problems with my monitor.
B: What is wrong ?
A: The screen is too dark. I think it is broken.
B: I don't think so, Let me see. You should adjust the knob.
A: Oh , thank you. I didn't know that.
III. Homework
- Make 5 sentences about computer, beginning with I think ... / I don't think ...
- Do exercises in the workbook.
__________// 0 // 0 // 0 //_________
Planning date:	 12/ 4 / 2011
 	 Teaching date: 15/ 4/ 2011
Period 93:
Unit 15: computers
Lesson 3:	listen p. 141 + write p. 142-143 
I/ Aims To help students listen how events are sequenced and complete the chart given.
To help students write instructions.
II/ Objectives:
	By the end of the lesson, students will be able to:
+ improve their listening skill and to understand how events are sequenced and complete the chart given.
+ write a set of instructions on how to use the printer.
III/ Teaching aids
	Textbook, workbook, tape and cassette player, the chart, coloured chalk. 
IV/ Ways of working:
	Teacher – Whole class, individuals, pair work, team work
V/ Procedures
Teachers’ activities
Students’ activities
1. Warm up: (5ms)
- Hold the class to find words about computers: 
Give guiding senyences:
1) Taking a lot of time to do.
2) The opposite meaning of “ easy”
3) Join together.
4) Keep the information.
5) Making you smile.
6) A question or difficult situation.
2. Listening
a. Pre listening
* Pre teach vocabulary 
the chart : 	(drawing)
the circle : 	(drawing)
the triangle :	(drawing)
change :	(realia)
paper input tray : (picture)
power button :	(picture)
icon : 	(picture)
- output path(picture)
(to) remove : (picture)
 * Rub out and Remember to check understanding. 
* Set the scene: (Teacher uses the chart in the textbook to explain the students)
	Computer programmers use flow charts to help people understand how events are sequenced. All the shapes on this chart have a particular meaning. For example, the circles indicate a starting or stopping point, the triangles are questions and the ovals are answers. This flow chart shows how to get a drink from a machine.
b. While listening 
- Ask Ss to listen to the tape about the steps to get drink from a machine.
- Play the tape (3 times)
- Let Ss check answers with their partners.
- Ask Ss to give their chart on BB.
- Play the tape again (once), and give the right answers.
3. Writing
a. Pre-writing:
- Ask Ss to look at book (P.142) and give meaning of the words.
a. paper input tray 
1. giấy
b. monitor screen 
2. đường/ lối ra.
c. power button 
3. ký hiệu
d. icon 
4. nút mở điện.
e. output path 
5. khay đưa giấy vào
f. paper 
6. màn hình.
- Let Ss match the words with the numbers in the picture.
- Ask Ss to give answers.
b. While-writing
- Ask Ss to look at the pictures and the words. Write the instructions on how to use the printer.
- Let Ss correct writing with partners.
- Ask Ss to read writing in front of the class.
- Give the right answer (on the extra-board)
c. Post-writing
* Correction 
	- Help students to correct their works.
4. Homework
Ask Ss to:
- Rewrite the steps of printing a page.
- Do exercises in the workbook
- Hold the class to find words about computers: 
Give guiding senyences:
1) Taking a lot of time to do.
2) The opposite meaning of “ easy”
3) Join together.
4) Keep the information.
5) Making you smile.
6) A question or difficult situation.
I. Vocabulary 
- Look at the chart and tell what are there in the chart.
- Read and copy the words:
the chart : 	sơ đồ	
the circle : 	hình tròn
the triangle :	hình tam giác
change :	tiền lẻ
Listen to the teacher
paper input tray : Khay đựng giấy
power button :	nút điều khiển
icon : 	biểu tượng, hình tượng
output path: đầu ra
(to) remove : rời đI, di chuyển
II. Practice
1. Listen
- Listen to the tape about the steps to get drink from a machine, and complete the chart.
- Work in groups to check answers together.
- Give the completed chart on BB.
- Listen to the tape again, and check the answers.
Answer key 
Do you have the correct change?
Yes.
What do you want to drink?
Take it.
2. Write
2.1. Matching the words with the numbers in the picture
- Work in groups to look at book (P.142) and do matching.
* Ss' answers may be:
a - 5 b - 6 c - 4 d - 3 e - 2 f - 1
- Work in groups to match the items with teh correct pictures.
- Give answers
a) .... 3 ..... paper input tray 
b) .....1..... monitor screen 
c) .... 6 .... power button 
d) .... 2 .... icon 
e) ..... 4 .... output path 
f) ..... 5 .... paper. 
2.2. Write the instructions on how to use the printer
- Work individually to look at the pictures and the words. Write the instructions on how to use the printer.
- Correct As with partners
- Read writing in front of the class
- Check and copy the right answers.
Answer key
+ Plug in the printer and turn on the power.
+ Remove the old paper and load the new paper in the paper input tray.
+ Wait for the power button to flash.
+ Have the pages appear on the computer screen.
+ Click the printer icon on the screen and wait for a few seconds.
 + The printed paper will get out from the output path in a minute. 
III. Homework
- Rewrite the steps of printing a page.
- Do exercises in the workbook
__________// 0 // 0 // 0 //_________
Planning date:	 17/ 4 / 2011
 	 Teaching date: 18/ 4/ 2011
Period 94:
Unit 15: computers
Lesson 4:	read p.141-142
I/ Aims
- To help students read the text about a new university without a library has recently opened in the USA for details.
II/ Objectives
	- By the end of the lesson, students will be able to improve their reading skill, to understand the text for details and know more about how computers work in a university.
III/ Teaching aids
	Textbook, workbook, tape and cassette player, coloured chalk. 
IV/ Ways of working:
	Teacher – Whole class, individuals, pair work, team work
V/ Procedures
Teachers’ activities
Students’ activities
1. Warm up: (4 ms)
- Hold the class to play "Guessing Game" 
 - Ask Ss to discuss about the steps to get drink from a machine .
+ find the machine.
+ ask yourself if you have correct change.
+ ask yourself what drink you want to drink.
+ insert coins and press the button.
+ take the drink appeared.
2. Pre-reading: (10 ms)
* Pre teach vocabulary
 Introduce the situation of the reading that is about computers' applications in our life.
Play the tape (once) and then present new words of the text:
- (to) access :	(situation)	
- (a) freshman :	(explanation)	
- (a) campus :	(explanation)	
- the bulletin board : (realia)
- skeptical (adj) :	(translation) 
- (to) Store information:.	(situation)
- (to) Send massage: (example)
- (to) Receive information: : (example)	
* Rub out and remember to check understanding.
* True / False statements predictions	Read 1 a)-f) P.141-142	
No
Statements
True
False
There is a new university without a library in the USA recently.
ỹ
Users can send and receive messages by using computers.
First-year students in many universities are required to have access to a computer.
Students have to go to computer rooms to connect their computers to the computer jacks.
Computers bulletin boards are the same as the traditional ones.
Not all people think positively about the new method of study off campus.
3. While-reading: (24 ms)
- Ask Ss to read the text (once) then answer the questions.
+ What is the main idea of the passage ?
+ Who would be interested in the reading ?
- Let Ss check their answers each others.
- Ask the groups to give answers in front of the class.
- Correct Ss' answers and give the right answers
- Ask Ss to read the text again and answer the questions (P.142)
4. Post-reading: (6 ms)
- Ask Ss to read and translate the text into Vietnamese.
5. Homework(1 m)
Learn the new words by heart.
Prepare the next lesson: Language Focus
- Work in groups to discuss about the steps to get drink from a machine .
I. Vocabulary
 Look at the text and listen to the T.
 Listen to the tape and copy the words.
 Read the words in chorus and individually.
- (to) access :	truy cập	
- (a) freshman :	sinh viên năm thứ nhất	
- (a) campus :	khuôn viên trường đại học
- the bulletin board :	bảng tin
- skeptical (adj) :	(có tính) hoài nghi
- (to) Store information: lưu trữ thông tin.	
- (to) Send massage: gửi tin nhắn
- (to) Receive information: nhận thông tin	
- Students predict if the following sentences are true or false.
II. Practice
1. Checking open predictions
- Work in groups to read the text again and then decide whether the statements in the book are true (T) or false (F).
- Check answers with other groups.
- Give answers, and others correct ...
Answer key
No
Statements
True
False
There is a new university without a library in the USA recently.
ỹ
Users can send and receive messages by using computers.
ỹ
First-year students in many universities are required to have access to a computer.
ỹ
Students have to go to computer rooms to connect their computers to the computer jacks.
ỹ
Computers bulletin boards are the same as the traditional ones.
ỹ
Not all people think positively about the new method of study off campus.
ỹ
2. Comprehension Questions:	Read 2 a)-e) P.142
-Students read the text again and answer these questions in pairs
Answer key
It has no library. All the information normally found in a library is now stored in the university’s computers.
All the information normally in a library or messages normally found on a bulletin board.
A computer and a telephone line.
With a bulletin board on the Internet, a great number of people (over 20 million) can get access to the bulletin and exchange information quickly.
More and more people complete their college degree through distance education programs online
- Read and translate the text into Vietnamese.
III. Homework
Learn the new words by heart.
Prepare the next lesson: Language Focus
__________// 0 // 0 // 0 //_________
Planning date:	 17/ 4 / 2011
 	 Teaching date: 21/ 4/ 2011
Period 95:
Unit 15: computers
Lesson 5:	language focus 1 + 3 + 4 p.143-146
I/ Aims
- To help students compare the present perfect with the past simple.
II/ Objectives
By the end of the lesson, students will recognize the difference between the present perfect and the past simple.
III/ Teaching aids
	Textbook, workbook, coloured chalk. 
IV/ Ways of working:
	Teacher – Whole class, individuals, pair work, team work
V/ Procedures
Teachers’ activities
Students’ activities
1/ Revision (9ms)	
* Complete the table
	- Get students to complete the table.
Infinitive
the past simple
the present perfect
Be
was / were
been
See
Go
Have
Hear
Break
Fall
Arrive
2/ Practice (35 ms)
Language focus 3 a)-g)	P.146	
 - Get students to check the correct column.
finished action
incomplete action
a.
I’ve been to Sa Pa highlands.
ỹ
b.
They have lived in Ca Mau for 10 years.
ỹ
c.
She has finished her homework.
d.
He has worked with the computer since early morning.
e.
We have found the problems with the printer.
f.
Someone has unplugged the printer.
g.
People have received information through the internet recently.
Language focus 4 P.137
* Gap fill 	
	- Get students to put in the correct tense of the verbs in brackets the present perfect or the past simple.
* Pair work
	- Ask Ss to work in pairs, students practice the complete dialogues.
4/ Homework (1 m)
Do exercises in the workbook.
1. Revision 
* Complete the table
	- Students complete the table.	
Infinitive
the past simple
the present perfect
be
was / were
been
see
saw
seen
go
went
gone
have
had
had
hear
heard
heard
break
broke
broken
fall
fell
fell
arrive
arrived
arrived
2. Language Focus 2 P.144-145
- Students look at the flight information tables and ask and answer questions about the flights.
Example exchange
S1:	Has the flight to Vientiane departed yet?
S2:	Yes, it has already departed.
S3:	Has the flight from Los Angeles arrived yet?
S1:	No, it hasn’t arrived yet.
3. Language focus 3 a)-g)	P.146	
 - Students check the correct column.
finished action
incomplete action
I’ve been to Sa Pa highlands.
ỹ
They have lived in Ca Mau for 10 years.
ỹ
She has finished her homework.
ỹ
He has worked with the computer since early morning.
ỹ
We have found the problems with the printer.
ỹ
Someone has unplugged the printer.
ỹ
g.
People have received information through the internet recently.
ỹ
4. Language focus 4 P.146
* Gap fill 	
	- Students put in the correct tense of the verbs in brackets the present perfect or the past simple.
	Answer Key
Have . seen, did . see, saw
haven’t had
have been
Have  heard
happened

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