Giáo án Tiếng Anh 8 unit 16: Inventions

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Những giáo án bài 16 Inventions được soạn thảo chi tiết, cẩn thận giúp bạn bổ sung những kiến thức cần thiết về những phát minh và các nhà khoa học nổi tiếng. Mục tiêu của bài 16 Inventions - Tiếng Anh 8 là giúp học sinh có thể biết nguồn gốc của một bài báo và nói về quá trình sản xuất một sản phẩm hay một vật, qua đó học sinh còn được phát triển kỹ năng viết, có thể đọc các bài viết về những phát minh khác nhau. Mong rằng các bạn sẽ hài lòng với những giáo án của bài.

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Nội dung Text: Giáo án Tiếng Anh 8 unit 16: Inventions

Giáo án Tiếng anh lớp 8. UNIT 16 : INVENTIONS Lesson : 1 Section: - Getting started - Listen and read I. Aim Practice reading for details about the development of paper and how to produce chocolate . II. Objective By the end of the lesson , Ss will be able to know the origin of paper and talk about the process of producing something . III. Teaching aids: Posters , cassette , realia , chart , pictures , grid chart . PROCEDURE I / Warm up : Quiz – Who did it ? - Divide the class into 2 teams . - Tell Ss the team raising theirt hands first will have the right to answer the question - Inform the questions “ Who was the inventor of ......? or “ Who invented .....................?  Suggestions : 1. Steam engine -> Thomas Savery built the first steam engine in 1698 and later Watt improved it 2. Light bulb - > HumphryDavy , an English scientist , in 1800 . Giáo viên: Nhã Ca 1
3. Sewing machine -> Issac Meritt Singer ( 1850 ) 4. Aqualung -> Jacques – Yves Cousteau in 1943. 5. Telephone -> A .Graham Bell .  Lead into the new lesson . II / Pre- reading : Introduce the topic of the passage reading and some new words to Ss . 1. Pre- teach Vocabulary : - to remove use a flowchart and Vietnamese to - to crush elicit words - to liquefy 1-> 2-> 3-> 4 - to grind - to manufacture = to produce - a process – manufacturing process - a mold ( realia / picture ) - conveyor belt ( picture ) + Have Ss copy in their note books .  Checking vocabulary : Slap the board 2. Open predictions : - Set the scene “ Tim jones , Hoa,s American pen pal , is visiting a chocolate factory with his class and his teaher . Mrs . Allen. Now , guess who will show them around the factory and what they will learn from the visit . ? - Ask ss to work in groups to predict . - Collect their predictions and write them on the board . III / While- reading : 1. Checking the their predictions - Play the tape and ask Ss to listen while reading the dialogue ( 2 times ) - Have them correct their predictions and give feedback Giáo viên: Nhã Ca 2
2. Matching : - Ask ss to match the half sentences - Play the tape again ( 3 times ) and have Ss compare their answer with their pictures . - Call on Ss to give their answers for the class . - Give feedback and correct Answer Key : E a) The beans are cleaned before being cooked D b) Mr . Roberts thought Tim and Sam were going to touch the button . C c) After cooking , the cooa bean smell like chocolate F d) Sugar is one of the ingredients in chocolate B e ) Mrs . Allen warned Sam to leave some chocolate for others . A f) A sample of chocolate is given after visitors have toured the factory . => Call on some pairs to read the dialogue in front of class . - Correct mistakes if any . - Get ss to write the full sentences in their exercise notebooks . IV / Post - reading : 1 . Grid : - Put the grid on the board and have Ss copy . - Ask ss to read the dialogue again and fill in the grid . chocolate manufacturing process Answer Key : 1. The beans are washed , weighed and cooked . 2. The shells are removed . 3. The beans are crushed and liquefied 4. Cocoa butter , sugar , vanilla and milk are added . Giáo viên: Nhã Ca 3
5. The mixture is ground , rolled and pound into the molds - Call on some pairs to go the board to write their answers . - Give feedback and correct . 2. Rewrite the grid using sequence markers ( First , next , then ..., finally ) V/ Homework : 1. Learn by hear new words and write two line for each one . 2. Copy the write in their notebooks . 3. Do the exercises in the workbook . 4. Prepare the next lesson. Giáo viên: Nhã Ca 4
UNIT 16 : INVENTIONS Lesson : 2 Section: - SPEAK + LISTEN I. Aim Futher practice in using the passive. II. Objective By the end of the lesson , Ss will be able to talk about the inventions using the passive . III. Teaching aids: tables PROCEDURE I / Warm up : : Bingo - Get Ss to brainstorm a list of 10 words and write them on the board . foreman . process , manufacture , remove , crush , liquefy , grind , pour , mold , conveyor belt - Ask ss to choose any 4 words and copy them into their paper . - Call out the words until someone has ticked all of his / her words and shouts “ Bingo “ II / Pre- speaking : Introduce the topic of the speaking and some new words to students . 1. Pre-teach Vocabulary : - Have ss study the meanings of the inventions using Vietnamese . 1. Facsimile 2. Reinforced concrete 3. Microphone 4. Loudspeaker Giáo viên: Nhã Ca 5
5. Helicopter * Checking vocabulary : Which words 2. Grammar Awareness - Ask ss to read the dialogue / 148 again and pick out all of the passive sentences . - Call on Ss to give their answer . - Have ss review the passive in the present and past simple tenses . Answer Key : 1. This is where the cocoa beans are stored ( present simple ) 2. That button can not be touched ( passive with model ) 3. The beans are washed , weighed and cooked here . 4. After the shells are removed ... into molds . III / While- Speaking : 1. Practice : Word- Cue Drill - Have Ss read the model dialogue on 149 - Let Ss know what they are going to do : Ask and answer questions about the inventions to fill in the missing information - Ask ss to look at the tables on 150 and 156 and model the exchanges , using a good student . - Have Ss work in pairs , one looks at the table / 150 and the other / 156 . - Ask Ss to ask and answer the questions orally then fill in the missing information - Go around and assist Ss if necessary - Call on some pairs to demonstrate the exchanges . - Give feedback and correct . - Have Ss copy the complete table . Invention Date Inventor Nationality Printing Press 1810 Friedrich Koenig German Bicycle 1816 Karl D. German Giáo viên: Nhã Ca 6
Sanerbronn Facsimile 1843 Alexander Bain English Sewing machine 1845 Elias Howe American Reinforced 1849 F.J . Monier French concrete Microphone 1878 D.E Hughes American X-ray 1895 Wilhel Konarad German Loudspeaker 1924 C.W.Rice American Helicopter 1939 Igor Sikorsky American Color TV 1950 Peter Carl Gold American mark Optical fiber 1955 Narinder Kapany German Laser 1958 Gordon Gould American IV / Post - speaking : Making reports - Model and have Ss repeat Example : The Printing Press was invented by Friedrich Koenig in 1810. - Ask Ss to use the complete table to report what they have found . V / Pre-listening : Introduce the topic of the listening and some new words to students . 1. Pre-teach vocabulary : - Procedure (n) ( Translation ) - Pulp (nu) -> What is used to make paper ? - Vat (n) ( picture / drawing ) - to drain = to make something empty or dry by removing all the liquid from it ) - Roller (n) ( picture ) - Roll (n) ( realia ) => Have Ss copy . Giáo viên: Nhã Ca 7
VI / While -listening : Gap fill ( Listen 1 ) - Inform the topic : Paper – making process . - Have Ss read the sentences . - Play the tape 2 or 3 times and ask ss to fill in the gaps with the words they catch . - Ask ss to compare their answers with their partners . - Call on Ss to give their answers . Answer Key : 1. simple 2. same 3. two hundred 4 left 5. rollers - Call on some Ss to read the complete sentences in front of class . VII / Post - reading : Ordering Prediction ( Listen 2 ) - Ask ss to read the sentences (a-> g ) carefully and guess the order . - Ask Ss to work in groups to predictions - Collect their predictions and write their predictions on the board . - Play the tape again and ask Ss to listen. - Call on Ss to give their correction . - Give feedback and correct : Answer key : c. Paper pulp was placed in the vat . d. Paper pulp was mixed with water . a. The water was drained . e. 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 . Giáo viên: Nhã Ca 8
=> Call on some Ss to read the complete sentences aloud . - Get them to copy their notebooks . VIII/ Homework : 1. Learn by heart new words and write two lines for each one . 2. Use the information in the table to write 12 sentences in the notebooks . 3. Prepare the next lesson. Giáo viên: Nhã Ca 9
UNIT 16 : INVENTIONS Lesson : 3 Section: - Read I. Aim Listening and reading for information about paper making & inventions II. Objective By the end of the lesson , Ss will be able to fill in the gaps and order sentences from listening. III. Teaching aids: cassette , , chart , pictures .. PROCEDURE I / Warm up and pre-teach : Brainstorming Microwave Household Appliances ( May be write the names of the things in Vietnamese )  Remark and introduce some new words in English : - Microwave (n) : vi sóng - Vacuum (n) : máy hut bụi - Toaster (n) :máy nướng bánh mì - Have Ss copy * Checking vocabulary : Bingo - Get Ss to brainstorm a list of 10 new words and write them on the board . Giáo viên: Nhã Ca 10
- Have Ss choose any 4/5 words and copy them into their paper - Call out the words until someone has ticked all of their words and shout “ Bingo “ and wins . ( microwave , vacuum , hairdryer , dishwasher , telephone , toaster , washing machine , ... ) II/ While- reading : Matching - Get Ss to read the poem / 151 - Ask some questions to help them understand the reading more . + What is the first verse about ? + Is the second verse about the appliances used in the kitchen ? + What are “ doom , chugga-chug , vroom , boom ? - Have Ss match the headings to the verses / 152 . - Call on Ss to give their answers . - Give feedback and correct . Answer key : Verse 1 : b. Appliances that cooked food . Verse 2 : c. Appliances that clean or dry things . Verse 3: a . Instrument invented by Alexander Graham Bell . - Get Ss to copy in their notebooks . III/ Post - reading : Gap fill - Tell Ss to read the sentences carefully and fill the gaps with the inventions taken from the poems . - Have ss compare their answers with their partners . - Call on ss to give their answer and correct Answer key : 1. Vacuum 2. Telephone 3. Washing machine 4. Microwave 5. Hair dryer 6. Toaster - Call on some ss to read the complete sentences aloud . - Have Ss copy their notebooks . Giáo viên: Nhã Ca 11
IV / Homework : 1. Learn by heart all the things they have learnt and copy in their notebooks . 2. Do the exercises in the workbook. 3. Prepare the next lesson . Giáo viên: Nhã Ca 12
UNIT 16 : INVENTIONS Lesson : 4 Section: - Write I. Aim Futher practice in using the sequence markers. II. Objective By the end of the lesson , Ss will be able to use the sequence markers to describe a manufacturing procedure . III. Teaching aids: cassette , pictures , cardboards ... PROCEDURE I / Warm up : Jumbled words - Put the cardboards with jumbles words on the board . - Inform the topic : words related to papermaking procedure : 1. lppu = pulp 2. llreor = roller 3. moreer = remove 4. darni = drain 5. berif ver = fibre - Ask each group to write their answer on a piece of paper to hand in . => Lead in the new lesson . II / Pre - writing : Introduce the topic of the writing and some new words to students . 1. Pre-teach vocabulary : - a log ( n) : a thick piece of wood that is cut from a tree . - to flatten = to make sth become flat - to refine = lọc , làm tinh khiết Giáo viên: Nhã Ca 13
- chemically ( adv ) = treated in a chemical process => Have Ss copy . * Checking vocabulary : What and where 2. Gap fill : - Ask ss to read the text / 152 and fill in the gaps with the right sequence markers to describe the procedure of paper - making . - Ask Ss some question to check if they understand the text + What is cut into chips ? + What are chips mixed with before they are crushed to heavy pulp ? + Why is the pulp passed through rollers ? + What is the last step in paper – making ? - Call on some ss to read the completed sentences . Give feedback and correct Answer Key : 1. First 2. Then 3. Next 4 . After this 5. Then 6. Finally 3. Ordering Pictures - Have Ss look at the pictures / 153 - Ask ss to think of the process of chocolate – making and put the pictures in the correct order . - Call on some pairs to give their answers . - Ask Ss to listen to check if their answers are correct or not . - Read the statements aloud . 1.d The fruit harvest is fermented for 3 to 9 days to kill the beans and turn them brown . 2. a The beans are dried in the sun . 3. e The beans are cleared in special machines 4. c The beans are roasted to bring out the chocolate flavor . Giáo viên: Nhã Ca 14
5. b They are shelled and ground to produce chocolate liquor . 6. f The liquor is made into chocolate candy or cocoa powder - Give feedback and correct Answer Key : 6 -2 - 4 -1- 5- 3 III / While - writing : - Ask Ss to rearrange the sentences / 153 according to the ordered pictures . - Call on Ss to give their answer Answer key : 1.d 2. a 3. e 4. c 5. b 6. f - Have Ss use the sequence makers to link the sentences together in a paragraph . - Go around and help Ss if necessary . - Call on some Ss to read their writing for the class . - Give feedback and correct . => Have Ss copy . - Call on some Ss to read the complete sentences aloud . IV / Post- writing : Write from the following sets of words and phrases , complete which together describe the process of making Ice - cream . You can make all the necessary changes and additions . a) First / basic ingredients / be pored / tank b) Then / be mixed / thorough ( hoàn toàn , kĩ lưỡng ) c) Next / mixture / be cooled and piped / freezing tank . d) Then / be beaten until smooth / and nuts or fruits / added . e) After this / be packed / containers . f) Finally / be kept / refrigerated room until / hard . - Ask ss to work in groups . - Collect their writings to show in front of class . - Correct mistakes and ask them to copy in their notebooks . Giáo viên: Nhã Ca 15
V / Homework : 1. Learn by heart all new words and copy in their notebooks . 2. Rewrite their writings in their notebooks . 3. Prepare the next lesson . Giáo viên: Nhã Ca 16
UNIT 16 : INVENTIONS Lesson : 5 Section: - Language Focus I. Aim Futher practice in using the passive. II. Objective By the end of the lesson , Ss will be able to change active sentences into passive ones and write WH – questions in the passive . III. Teaching aids: cardboards ... PROCEDURE I / Warm up : : Pelmanism - Inform the topic : Infinitive - Past participle - Didive the class into 2 teams Infinitive Past participle Write Written Draw Drawn Sell Sold Win Won Run Run II / Language focus : 1. Presentation : * Pre teach vocabulary : - to run a business / company = to be in charge of something - around the corner = very near - due to =because of Giáo viên: Nhã Ca 17
- flood (n) Ex: There might be flood when it rains heavily for days . - Zipper ( Realia ) - Xerograph ( translation ) + Have Ss copy .  Checking vocabulary : Slap the board Run a Around the business corner Flood Xerograph Due to Zipper - Have Ss review how to change an active sentences into a passive one . 2. Practice : 2.1 Language focus 1 : - Have Ss do exercise 1 / 154 - Call on some Ss to give their answers orally for the class . - Get some Ss to go to the board and write the sentences . - Give feedback and correct Answer Key : a) The document was typed by Mrs Quyen . b) The computer was repaired by Mr . Nhan c) The picture was drawn by Ba . Giáo viên: Nhã Ca 18
d) The lights were turned off by Hoa . e) The cake was baked by Lan . 2.2 . Language focus 2 : - Have Ss do exercise 2 - Ask Ss to compare their answers . - Call on some ss to give their answers orally then ask them to go to the board and write the sentences . - Give feedback and correct . Answer Key : a) ... was awarded ... b) ... won ... c) ... ran ... d) was run ... / was sold ... e) ... was closed or closed 2.3 Language focus 3 : - Have Ss do exercise 3 - Go through the underlined words with Ss before have them write questions . Eg : a) The zipper -> What b) Maize -> What in the 16th century -> When .. c) by Lewis Waterman -> Who d) in Hungry -> where e) in coping machines -> in which machine . - Have some ss to give their answers in front of the class . - Give feedback and correct . `Answer Key : a) What was invented by W.L Judson in 1893 ? Giáo viên: Nhã Ca 19
b) What was brought into Vietnam by Phung Khac Khoan ? When was maize brought into Vietnam ? c) Who invented the fountain pen ? When was the fountain pen invented ? d) Where was the ballpoint pen invented ? e) In which machine is xerography widely used ? 2.4 Language focus 4 : - Ask Ss to use the pictures and the word cues to write a description of how white rice is produced in the traditional way , using the sequence markers . - Have Ss complete the sentences orally first . - Ask Ss to write the paragraph in their exercise notebook . - Monitor while Ss are writing and help them if necessary . - Call on some Ss to read their writing . - Give feedback and correct . First , the rice crop is harvested , Then the rice plants are threshed . Next ( After this ) , the rice grains are husked in the mill to produce brown rice . After this , the bran is removed in the mortar and it is finally winnowed to produce white rice . III / Homework : 1. Change the sentences in language focus 3 into the active Ex : 1. W.L Judson invented the zipper in 1893 . 2. Redo the exercises ( 1,2,4 ) in their notebooks . 3. Prepare the next lesson . Giáo viên: Nhã Ca 20