Giáo án Tiếng Anh 8 unit 16: Inventions

Giáo án Tiếng anh lớp 8.
Pre:...................

Unit 16:

Inventions.

Period 96 Lesson 1: Getting started+ Listen and read.
Teaching date
Class - attendance

8A:……

8B:……

8C:……

I. Objectives :
-After the lesson Ss will be able to get acquaited with the inventions: The way to
make paper and how to make socola.
-To drill Ss speaking and reading skills.
II.Teaching aids
Textbook + tape and casstte.
III. Teaching procedure.
1.Class oganization :
Date:....................8A................
......................8B...............
2.Oral test :
Ask Ss to make examples using the present perfect tense with “yet” .
3.New lesson :
A. Getting started.

-Ask ss to work in pair to match the stages in the development of paper with the
correct pictures.
-Call some pairs to give the correct answers.
-Explain he meaning of new words:
Papyrus: cây cãi , giấy cãi.

Wood pulp: bột gỗ.

Papermaking: làm giấy

Prisoner: tù nhân.


B.Presentation.
-T introduce the lesson and ask ss to write down the new words .
Cacao bean: hạt ca cao.

Manufacturing process: quy trình sản

Crush: nghiền.

Liquify: làm thành chất lỏng

xuất
Vanilla: vani.
Mold: khuôn.

Pour: đổ
Conveyor belt: băng truyÕn tải.

-Read the new words in chorus aloud before the class.
C. Practice.
-Ask ss to look at the dialogue and then listen to the introduction about the
dialogue.
Ask Ss to work in pairs to practice reading the dialogue.
-Ask ss to work in pairs to do the matching .
-Ask Ss to share the answers to the partners.
-Call Ss to give the correct answers.
The answers:
a).The beans are cleaned before being cooked.
b)Mr Robert thought Tim and Sam were ging to touch the button.
c) After cooking, the cacao beans smell like chocolate.
d) Sugar is one of the ingredients in chocolate.
e) Mrs Allen warned Sam to leave some chocolate for others.
A sample of chocolate is given after visitors have toured the factory.
-Check if necessary.
D. Production.
-Ask Ss to work in pairs to read the dialogue aloud before the class.
- Ask Ss to summarize the chocolate- manufacturing process.
-Cal some pairs to report in front of the class.


First, The beans are washed, weighed and cooked.
Then, the shells are removed.
Next, cacao butter, sugar, vanilla and milk are added.
The mixture is ground, rolled, and poured into the molds.
-Ask Ss to give the remark and the way to report the process to make some
products:
We often use: First.Second, Next, then, finally.
4. Consolidation :

-Ask ss to retell the process to make paper and chocolate.
5.Homework :
-Ask ss to do the exercise 1 in the text book.(p96)


Pre:..................

Unit 16: Inventions.
Period 97 :

Teaching date
Class - attendance

Lesson 2: Speak - Listen

8A:……

8B:……

8C:……

I. Objectives :
-After the lesson Ss will be able to get acquainted with the inventions: fascimile,
microphone, color TV, laser..........., know the process of making paper : Paper
making , vat, fibers, rollers..........
To drill Ss speaking skill.
II.Teaching aids
Textbook .Tape – Cassette.
III. Teaching procedure.
1.Class oganization:

Date:......................8A................
......................8B...............
2.Oral test :
Ask Ss to do the exercise 1 in the work book.
3.New lesson :
I.Speak.
A.Warm up.
-Ask ss to give the process of making chocolate.
-Work in pairs to speak aloud before the class.
First, The beans are washed, weighed and cooked.
Then, the shells are removed.
Next, cacao butter, sugar, vanilla and milk are added.


The mixture is ground, rolled, and poured into the molds.
A. Presentation
* Pre- speaking.
- ask to look at the speaking and then listen to teacher to prepare for the speaking.
- Explain the meaning of new words:
Fascimile: máy fax.

Reinforced concrete: bê tông cốt thép

Microphone: mỉ cr«

X-ray: máy chụp x- quang.

Loudspeaker: loa phóng thanh

Helicopter: máy bay trực thăng

Laser: kỹ thuật la de.

Printing press: máy in.

Optical fiber: sợi quang.
-Read the new words aloud before the class.
* While - speaking.
-Ask ss to work in pairs to practice asking and answering the questions to fill in the
table the inventions, names, and the nationalities................
 When was laser invented?
 What was invented by D.E Hughes ?
 What was his nationality?
-Work in pairs to practice.
-Call some pairs to practice before the class.
A: Who was microphone invented by ?
B: It was invented by D.E Hughes.
A: What was his nationality ?
B: He was an American.
A: When was the microphone invented?
B: It was invented in 1878.
-Give the correct answers:
* Post - speaking.


-ask ss to work in pairs to play the game.
One read the inventions.
Others read the inventors.

II.Listen.

-Ask ss name the inventions by doing the net work.
X- ray

fascimile

Inventions.

* Pre-listening.
-Ask ss to listen to the introduction about the lesson and then ask them to work in
pairs to discuss which materials we use to make paper.
 What can we use to make paper?
 How is paper made ?
- Ask Ss to write the new words and their meaning.
Pulp vat: chum bột giấy.

Roll: trục lăn, con lăn

Papermaking machine: máy làm giấy
-Ask Ss to read the new words and write the meaning of new words.
-Ask Ss to listen to the tape to do the exercise 1 ( p150).
* While - listening.
-Play the tape twice and then complete the sentences in the text book.
-Work in pairs to share the answers to the partners.
-Read the answers aloud.
a) Paper making is a simple process.


a) The procedure is almost the same as it was two hundred years ago.
c) The pulp vat is on the left of the machine.
b)

The papermaking machine has alot of rollers.

-Check the answers .
-Read again the sentences.
* Post- listening.
-Ask Ss to liten to the tape again and then work in pairs to arrange the sentences
into correct order.
-Share the answers to their partners.
-Write the answers on the BB.
a) paper pulp was placed in the vat.
b) Paper pulp was mixed with water.
a) The water was drained.
c) The pulp fibers were poured out.
g) The pulp was conveyed under the rollers.
f) The fibers were smoothed and pressed dry.
b) The paper was put on a roll.
-Read the answers aloud
-Check if necessary.
4.Consolidation
- Ask ss to retell again the processing of making paper.
-Ask ss to retell the inventions and the inventors.
5. Home work
-Ask ss to do the exercise 2 in the work book.


Pre:....................

Unit 16: Inventions.
Period 98 :

Teaching date
Class - attendance

Lesson 4: Read.

8A:……

8B:……

8C:……

I. Objectives :
-After the lesson Ss will be able to learn about house hold inventions: Microwave,
toaster, vacuum, hair dryer, dishwasher.......................
-To drill Ss reading skill.
II.Teaching aids
Textbook + pictures , work sheets.
III. Teaching procedure.
1.Class oganization :
Date:....................8A................
......................8B...............
2.Oral test :
Ask Ss to do the exercise in the work book.
3.New lesson :
A. Warm up:
-T introduce the lesson and then ask Ss to name the house hold inventions they
know in English.
- Work in pairs to list the name of inventions.
-Write the words on the BB.

Microwave.

Toaster.

Vacuum

Dishwasher...................
B. Presentation:
* Pre -reading.

Hair dryer.


-Ask ss to listen to the introduction and then write the meaning of new words.
Microwave: lò vi sóng.

Toaster: máy nướng bánh

Disher: máy rửa bát

Vacuum: máy hút bụi

Hairdryer: máy sấy tóc

Air conditioner: máy điều hoà nhiệt độ.

-Read the new words aloud after teacher.
* While- reading.
-Ask Ss to read the reading in silence to get the meaning of the reading.
-Ask ss to read the rading to do the exercise 1 in the text book.

+ Match the heading to the verses.
-Work in pairs to share the anwers to the partners.
-Write the answers on the BB.

Verse 1: b) Appliances that cook food.
Verse2: c) Appliances that clean or dry things.
Verse 3 : a) Instruments invented by Alexander Graham Bell.
-Check the answers if necessary.
-Call Ss to read the reading again to do the exercise 2 in the text book.
-Work in pairs to fill in the gaps in the sentences with one invention in the poem.
a) " Joan, Where 's the vacuum? I want to clean the floor. "
b) Last night I was reading in the bedroom when the telephone rang. It was Ann,
an old friend I didn't see for more than 12 years.
c) A dishwasher is a kitchen appliance that automatically washes, rinses, and dries
dishes.
d) " Jane, Why don't you put the meal in the microwave to defrost?
e) Can I borrow your hairdryer?
f. We now toast the bread with a toaster on the table
-Give the correct answers.


-Ask ss to read the reading inturn aloud before the class.
* Post-reading.
-Ask ss to practice asking ans answering the “ yes- no “ questions about the
inventions.
4. Consolidation:
- Ask ss to retell the usues of the household inventions.
5. Home work:
-Ask ss to do the exercise in the work book.

Unit 16: Inventions.

Pre:......................

Period 99 :

Lesson 4: Write.

8A:……

8B:……

Teaching date
Class - attendance

8C:……

I. Objectives :
-After the lesson Ss will be able to learn about how to write the process of
making paper and chocolate.
-To drill Ss writing skill.
II.Teaching aids
Textbook + pictures , work sheets.
III. Teaching procedure.
1.Class oganization:
Date:....................8A................
......................8B...............
Ask Ss to do the exercise in the work book.
3.New lesson :

A. Warm up.
-Ask ss to list the house hold inventions that they know in english.
-Write them on the BB.
-Read them aloud
Microwave.

Toaster.

Vacuum

Hair dryer.

Dishwasher...................
B. Presentation:
* Pre -writing.
-Ask ss to read the reading and then use the words given to fill in the blank.
-Work in pairs to complete.


-Write the answers on the clear paper.
-Read the answers aloud.
1) First.
2) Then.
3) Next.
4) After this.
5) Then.
6) Finally.
-Ask ss to read the reading aloud.
* While - reading.
-Ask ss to read the order of the lesson and then work in pairs to rearrange the

pictures in the correct order.
-Share the answer to the partners.
Ask Ss to give the correct answers.
3-1-4-5-6
-Ask ss to use the pictures to rewrite the sentences using the sequence makers.
-Rearrange the sentences.
- Ss work in pairs to write the sentences.
d. First, the fruit harvest is fermented for three to nine days to kill the beans and
turn them brown.
a. Then the beans are dried in the sun.
a. Next , The bean are cleared in special machines.
c. Then the beans are roasted to bring out the chocolate flavor.
b. After this, They are shelled and groud to produce chocolate liquor.
b. The liquor is made into chocolate candy or cocoa powder.
* Post - writing.


-Ask ss to read again the reading and use the sentences to speak about the way to
produce the chocolate.
4. Consolidation:
- Ask ss to retell the main content of the lesson.
5. Home work :
-Ask ss to rewrite the writing at home and prepare for the language focus


Unit 16: Inventions.

Pre:...................

Period 100:

Teaching date
Class - attendance

Lesson 5: Language focus.

8A:……

8B:……

8C:……

I. Objectives :
-After the lesson Ss will be able to review the grammar that they are in unit 16.
-To drill Ss reading and writing skill.
II.Teaching aids
Textbook + pictures , work sheets.
III. Teaching procedure.
1.Class oganization :
Date:....................8A................
......................8B...............
2.Oral test :
Ask Ss to do the exercise in the work book.
3.New lesson :
A. Warm up.
-Ask ss to retell the passive voice by giving the form and make examples with the
passive form.
-Write the form on the BB.
-Make examples and write on the BB.
+ The form:
* The present tense:

S + be + PP + by O.
Ex: The letter is written by him.
* The past tense.


S

+ be

+ PP + by O.

Ex: The letter was written by him.
* The present perfect tense:
S + has / have + been + PP + by O.
Ex: The letter has been written by him.
B. Presentation.
-Ask ss to look at the exercises in the text book and then give the form that are
used in the exercise.
- Passive voice:
- Sequence markers.
-Ask Ss to retell the form and list the sequence markers.
First, then , after that. Next, finally.
C. Practice.
-Ask ss to do the exercises in the text book.
-Work in pairs to discus and then write on the BB.
-Share the answers to the partners.
-Ask Ss to write on the BB.
+ Change the sentences into passive voice.
Ex1:
a)

The document was typed by Mrs Quen.

b)

The computer was repaired by Mr Nhan.

c)

The picture was drawn by Ba.

d)

The lights was turned off.

+ Active or passive:
-Ask ss work in pairs and do the exercise.
Ex2.


a)Passive: was awarded.
b)Active: won.
c)Active: ran.
d)Passive: was run / was sold.
e)Passive: was closed.
+ Make questions:
-Work in pairs to write the questions and write them on the BB.
Ex3:
a) What was invented by WL.Judson in 1893?
b) What was brought into Vietnam by Phung Khac Khoan ? and When ?

c) Who invented the fountain pen?
d) Where was the ballpoint pen invented ?
+ Write the sentences by using the sequence markers .
-Write them on the BB after discussing in pairworks.
Ex4:
a) First, the rice crop was harvested.
b) Then the rice plants was thrested.
c) Next , the rice grains was husked by the mill to produce brown rice
d) Finally , the brain was removed by the mortar and it was winnowed to
make white rice.
D. Production.
-Ask ss to retell the way to make the white rice in traditional way.
-Ask Ss to work in pairs to retell the passive form.
4. Consolidation :
-Ask ss to retell the main form of the passive voice.
5. Home work:
- Ask Ss to review the grammar structures from unit 9 to 16.


- Prepare for the revision lesson.