高中英语人教新课标必修五 Unit 3 Life in the future第4课时Extensive reading教案
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| 名称 | 高中英语人教新课标必修五 Unit 3 Life in the future第4课时Extensive reading教案 |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2015-12-14 19:46:18 | ||
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Unit 3 Life in the future
Ⅰ. 单元教学目标
技能目标Skill Goals▲Talk about things in the past, at present and in the future▲Talk about changes at present▲Predict good and bad changes in the future
Ⅱ. 目标语言
词汇 1． 四会词汇Expec ( http: / / www.21cnjy.com )t, aspect, cons ( http: / / www.21cnjy.com )tant, constantly, remind, jet, previous, tablet, capsule, opening, surrounding, lack, ache, mask, bend, press, swift, swiftly, master, sight, flash, switch, optimistic, length, extraordinary, extraordinarily2. 认读词汇jet lag, flashback, e ( http: / / www.21cnjy.com )xpertise, hover, pessimistic, enormous, imitate, 3. 词组take up, remind ... of ..., lose sight of ..., catch sight of ..., sweep up, speed up, assist in4. 重点词汇constant, remind, lack, sight, assist, require, settlement, previous, swift
语法 The past participle as the attribute…and following him to collect a hovering carriage driven by computer.The past participle as the adverbialWorried about the journey, I was unsettled for the first few days.Hit by a lack of fresh air, my head ached.Exhausted, I slid into bed and fell fast asleep.
重点句子 1. This is similar ( http: / / www.21cnjy.com )to the “jet lag” you get when flying, but instead it means you keep getting flashbacks from your previous time period. P172. Well-known for ( http: / / www.21cnjy.com ) their expertise, his parents’ company named “Future Tours” transported me safely into the future in a time capsule. P183. He handed it t ( http: / / www.21cnjy.com )o me and immediately hurried me through to a small room nearby for a rest. P184. He was swept up into the centre of them. 5. I found later that ( http: / / www.21cnjy.com )their leaves provided the house with much-needed oxygen. P188. Everyone w ( http: / / www.21cnjy.com )ill get twice as much personal space as in flats on land. P589. Only when the robot cleaner touches objects can they be moved. P59
Ⅲ. 教材分析与教材重组
1. 教材分析
本单元以“Life i ( http: / / www.21cnjy.com )n the future”为中心话题，旨在通过本单元的学习，让学生大胆发挥想象，对人类今后的生活环境，生活方式进行猜测，并在此基础上，对人类的种种活动进行反思，提倡环保生活意识。同时让学生学会过去分词作定语和作状语的不同用法。最后让学生将本单元所讨论的话题和推测手法相结合，学习怎样写report。
1.1 Warming Up 部分利 ( http: / / www.21cnjy.com )用一个关于“住”和“行”的对比研究表格引导学生回顾过去，认识现在和展望未来。通过这一活动，引发学生对过去，现在和未来的思考，使学生对将要阅读的文章有个知识准备。
1.2 Pre-reading 部分 ( http: / / www.21cnjy.com )让学生充分运用发散思维，先列举当今世界人类面临的一些突出问题，然后要求学生思考为什么会产生这些问题，这些问题中哪些在未来社会仍然可能存在，哪些将会被克服，哪些将会恶化。为下面的阅读做了铺垫。
1.3 Reading 部分通过 ( http: / / www.21cnjy.com )一封发自未来的电子邮件，讲述了作者Li Qiang怎样安全到达“未来世界”，他对“未来世界”的印象，以及“未来世界”的日常生活方式和交通工具情况。阅读时要把重点放在“未来世界”生活与当今生活的不同点上。
1.4 Comprehending 部 ( http: / / www.21cnjy.com )分设计了三个教学活动来加深学生对Reading部分的理解。第一个活动要求学生通过阅读找出“未来世界”在以下几个方面的变化：跨时空旅行，交通，住房，城镇环境和空气质量。接着让学生在此基础上得出自己的结论，哪些变化好，哪些变化不好，并说明理由。第二个活动要求学生通过阅读来判断Li Qiang对“未来世界”的态度是乐观的还是悲观的。学生要在文中找出支持自己观点的论据，尽可能说服别人。第三个活动让学生想象一下Li Qiang将会去参加哪些活动。这样既鼓励学生展开丰富的想象，又为Using Language部分的语篇学习做了铺垫。
1.5 Learning abou ( http: / / www.21cnjy.com )t Language部分突出了本单元的一些重点词汇及语法。首先通过完成语篇来考查学生运用本单元词汇的能力，并且通过练习，让学生区分两种动词短语，一种是以动词为中心的词组，另一种是以介词为中心的词组。语法部分要求学生主动找出阅读语篇中的重点结构——过去分词作定语和状语，然后加以应用。
1.6 Using Language ( http: / / www.21cnjy.com ) 部分涵盖了听，说，读，写四项语言基本技能。要求学生通过阅读I HAVE SEEN AMAZING THINGS 一文，对Li Qiang旅行的第三站有个总体的印象，并能找出部分细节知识。
1.7 SUMMING UP 部分归纳了本单元的主要学习内容并让学生自我检测一下学习效果。
1.8 LEARNING TIP 部分告诉学生在讨论时记笔记的好处和方法。
2. 教材重组
2.1 可将Warming Up, Pre-reading, Reading 和 Comprehending 整合在一起上一节精读课。
2.2 Using Lan ( http: / / www.21cnjy.com )guage 中的reading 和 listening 是 Li Qiang’s travel to the future的延续，可将这两部分及Workbook 中的LISTENING整合起来上一节听力课。
2.3可将Learning abou ( http: / / www.21cnjy.com )t Language 和 Workbook 中的 USING WORDS AND EXPRESSIONS 及USING STRUCTURES整合起来上一节语法课。
2.4 将 Workbook 中的 R ( http: / / www.21cnjy.com )EADING TASK 和 LISTENING TASK 结合起来上一节泛读课，进一步拓展学生的思维和想象力。
2.5 将 Using ( http: / / www.21cnjy.com )Language中的speaking 和 Workbook中的TALKING 整合在一起上一节口语课，鼓励学生对现在进行反思，对未来进行大胆猜测(make predictions)。
2.6 将Workbook 中的 ( http: / / www.21cnjy.com )SPEAKING TASK 和 WRITING TASK 整合起来上一节写作课，同时对整个单元进行一个小结。
3. 课型设计与课时分配
1st Period Reading
2nd Period Listening
3rd Period Grammar
4th Period Extensive Reading
5th Period Speaking
6th Period Writing
The Fourth Period Extensive Reading
Teaching goals 教学目标
1. Target language目标语言
a. 重点词汇和短语
imitate, spin, shut ( http: / / www.21cnjy.com )tle-submarine, destination, sensor, be essential for, contact
b. 重点句式
The sea bottom is deep and this makes it difficult to.. P58
Only the robot cleaner will be able to move objects. P58
2. Ability goals能力目标
Enable the Ss to dis ( http: / / www.21cnjy.com )cuss the possibilities and the difficulties of living under the sea.
3. Learning ability goals 学能目标
Help the Ss learn how ( http: / / www.21cnjy.com )to talk about the possibilities and the difficulties of living under the sea.
Teaching important ＆ difficult points 教学重难点
Talk about the possibilities of living under the sea.
Teaching methods 教学方法
Fast and careful reading; asking and answering activity; discussion.
Teaching aids 教具准备
A computer and a projector.
Teaching procedures ＆ ways 教学过程与方式
Step I Warming up
Lead in the topic ( http: / / www.21cnjy.com )by discussing the possibilities of living under the sea. Encourage the Ss to use their imaginations.
T: Have you ever wa ( http: / / www.21cnjy.com )tched the movie “The Little Mermaid” Do you like the sea I myself like the sea very much. I always think that how great it will be if I have the chance to live under the sea! Do you think living under the sea is possible Why Now please work in pairs to discuss the three questions on the screen.
Show the following questions on the screen and hold a discussion.
1. Do you think living under the sea is possible
2. Where are you going to live under the sea
3. In the undersea c ( http: / / www.21cnjy.com )ities, what equipments do you think are necessary
Ten minutes later, ask some Ss to answer the questions.
T: Have you finis ( http: / / www.21cnjy.com )hed Who would like to tell us your opinion Volunteer
S: I think it’s po ( http: / / www.21cnjy.com )ssible. Maybe in the future scientists will invent some kind of equipment that makes it possible for human being to live under the sea.
T: If it is possibl ( http: / / www.21cnjy.com )e, where are you going to live under the sea There is all water and fishes around you.
S: Maybe in a ( http: / / www.21cnjy.com )special equipment which will provide us much-needed oxygen and can float in the water. In that case we can travel in the sea to enjoy the wonderful view of the sea.
T: Good. If y ( http: / / www.21cnjy.com )ou are going to live under the sea, what kind of equipment do you think is necessary for your living
S: Oxygen provision and cleaning machine may be necessary.
Step Ⅱ Reading
Deal with the passage on page 58.
T: OK. From what you ( http: / / www.21cnjy.com )said, I know all of you are looking forward to living under the sea. Now a company just provides the very service! Please turn to page 58 and read the passage RISING TO A CHALLENGE. Let’s see what the life will be like in this undersea city. When you finish reading, complete the sentences on the screen.
Give the Ss 3 minutes to go through the whole passage.
1. The undersea city i ( http: / / www.21cnjy.com )s so comfortable that it is described as ___________ .
2. The undersea city has the following advantages:
a. _____________
b. _____________
c. _____________
d. _____________
T: Can you find out so ( http: / / www.21cnjy.com )me suitable sentences or words to fill in the blanks What’re the advantages of living under the sea
S: The underse ( http: / / www.21cnjy.com )a city is so comfortable that it is described as “a silk adventure”.
S: The undersea ( http: / / www.21cnjy.com )city has the following advantages: a. easy contact with the land surface; b. more personal space; c. complete personal security; d. no housework worries.
T: That’s great. You ( http: / / www.21cnjy.com )all have got the general idea of the passage. Now let’s look into some detailed aspects of the undersea city. First let’s look at its contact with the land surface. Who would like to tell me at the very beginning, what kind of problem were they facing And how was the problem solved
S: The sea bottom i ( http: / / www.21cnjy.com )s so deep that it’s hard to contact with the land surface. But later they invented the one-person or family shuttle-submarines which will always be ready to take people to the surface.
T: So in that cas ( http: / / www.21cnjy.com )e people who live under the sea can easily contact with the land surface. Then com-paring with living on land, what advantage do you think can attract people to live under the sea
S: We can get twice as much personal space as in flats on land.
T: Good! Then wh ( http: / / www.21cnjy.com )at kind of special equipment will be provided so as to realize all the advantages Please read the text again and finish the following chart. You can work with your partners.
Show the chart on t ( http: / / www.21cnjy.com )he screen and give the Ss 3 minutes to go through the whole text again to scan for the answer. A few minutes later, check the answers.
Advantages Special equipments How does it become realized
Easy contact with land One person or family shuttle-submarines Always ready to t ( http: / / www.21cnjy.com )ake people to the surface, a special small, computerized machine to monitor each person during the trip.
More personal space Get twice as much ( http: / / www.21cnjy.com )personal space as in flats on land, your house can float in the water.
Complete personal security Computer sensor Can feel the space ( http: / / www.21cnjy.com )left; only when the robot cleaner touches objects can they be moved.
No house- work worries Family used robots Feed your details into the computer hard-drive; answer your commands.
T: This unde ( http: / / www.21cnjy.com )rsea city is amazing. But I think designing such kind of undersea city is quite difficult! Do you want to meet its designer Now the designer of the city William Lee is being interview. Let’s listen to his interview and find out which two problems he came across and how he solved them. Then please finish the exercises on page 59.
...
Step Ⅲ Follow-up Activity
Set a scene for t ( http: / / www.21cnjy.com )he Ss: The company is going to held a press conference and exhibition. Encourage the Ss to design a poster which will draw visitors’ attention and provide some useful information.
T: We know t ( http: / / www.21cnjy.com )hat all new products have to be promoted so that it can be well-known among people. Now a press conference and exhibition is going to be held to make the undersea city known to people. If you work in the company, can you design a special poster to draw visitors’ attention so that they will come to the press conference Use your imagination and you can discuss with your group members.
A Sample poster:
( http: / / www.21cnjy.com / )Come to this meetingSee the value of OUR undersea houses.Saturation City has:● easy contact with the land surface ● more personal space● complete personal security ● no housework worriesCost: 20 dollarsDate: May 18thTime: 8:00 amPlace: The Science Exhibition Building
Step Ⅳ Homework
T: After class, p ( http: / / www.21cnjy.com )lease listen to the tape repeatedly until you can retell it yourselves and pay attention to pronunciation.
Ⅰ. 单元教学目标
技能目标Skill Goals▲Talk about things in the past, at present and in the future▲Talk about changes at present▲Predict good and bad changes in the future
Ⅱ. 目标语言
词汇 1． 四会词汇Expec ( http: / / www.21cnjy.com )t, aspect, cons ( http: / / www.21cnjy.com )tant, constantly, remind, jet, previous, tablet, capsule, opening, surrounding, lack, ache, mask, bend, press, swift, swiftly, master, sight, flash, switch, optimistic, length, extraordinary, extraordinarily2. 认读词汇jet lag, flashback, e ( http: / / www.21cnjy.com )xpertise, hover, pessimistic, enormous, imitate, 3. 词组take up, remind ... of ..., lose sight of ..., catch sight of ..., sweep up, speed up, assist in4. 重点词汇constant, remind, lack, sight, assist, require, settlement, previous, swift
语法 The past participle as the attribute…and following him to collect a hovering carriage driven by computer.The past participle as the adverbialWorried about the journey, I was unsettled for the first few days.Hit by a lack of fresh air, my head ached.Exhausted, I slid into bed and fell fast asleep.
重点句子 1. This is similar ( http: / / www.21cnjy.com )to the “jet lag” you get when flying, but instead it means you keep getting flashbacks from your previous time period. P172. Well-known for ( http: / / www.21cnjy.com ) their expertise, his parents’ company named “Future Tours” transported me safely into the future in a time capsule. P183. He handed it t ( http: / / www.21cnjy.com )o me and immediately hurried me through to a small room nearby for a rest. P184. He was swept up into the centre of them. 5. I found later that ( http: / / www.21cnjy.com )their leaves provided the house with much-needed oxygen. P188. Everyone w ( http: / / www.21cnjy.com )ill get twice as much personal space as in flats on land. P589. Only when the robot cleaner touches objects can they be moved. P59
Ⅲ. 教材分析与教材重组
1. 教材分析
本单元以“Life i ( http: / / www.21cnjy.com )n the future”为中心话题，旨在通过本单元的学习，让学生大胆发挥想象，对人类今后的生活环境，生活方式进行猜测，并在此基础上，对人类的种种活动进行反思，提倡环保生活意识。同时让学生学会过去分词作定语和作状语的不同用法。最后让学生将本单元所讨论的话题和推测手法相结合，学习怎样写report。
1.1 Warming Up 部分利 ( http: / / www.21cnjy.com )用一个关于“住”和“行”的对比研究表格引导学生回顾过去，认识现在和展望未来。通过这一活动，引发学生对过去，现在和未来的思考，使学生对将要阅读的文章有个知识准备。
1.2 Pre-reading 部分 ( http: / / www.21cnjy.com )让学生充分运用发散思维，先列举当今世界人类面临的一些突出问题，然后要求学生思考为什么会产生这些问题，这些问题中哪些在未来社会仍然可能存在，哪些将会被克服，哪些将会恶化。为下面的阅读做了铺垫。
1.3 Reading 部分通过 ( http: / / www.21cnjy.com )一封发自未来的电子邮件，讲述了作者Li Qiang怎样安全到达“未来世界”，他对“未来世界”的印象，以及“未来世界”的日常生活方式和交通工具情况。阅读时要把重点放在“未来世界”生活与当今生活的不同点上。
1.4 Comprehending 部 ( http: / / www.21cnjy.com )分设计了三个教学活动来加深学生对Reading部分的理解。第一个活动要求学生通过阅读找出“未来世界”在以下几个方面的变化：跨时空旅行，交通，住房，城镇环境和空气质量。接着让学生在此基础上得出自己的结论，哪些变化好，哪些变化不好，并说明理由。第二个活动要求学生通过阅读来判断Li Qiang对“未来世界”的态度是乐观的还是悲观的。学生要在文中找出支持自己观点的论据，尽可能说服别人。第三个活动让学生想象一下Li Qiang将会去参加哪些活动。这样既鼓励学生展开丰富的想象，又为Using Language部分的语篇学习做了铺垫。
1.5 Learning abou ( http: / / www.21cnjy.com )t Language部分突出了本单元的一些重点词汇及语法。首先通过完成语篇来考查学生运用本单元词汇的能力，并且通过练习，让学生区分两种动词短语，一种是以动词为中心的词组，另一种是以介词为中心的词组。语法部分要求学生主动找出阅读语篇中的重点结构——过去分词作定语和状语，然后加以应用。
1.6 Using Language ( http: / / www.21cnjy.com ) 部分涵盖了听，说，读，写四项语言基本技能。要求学生通过阅读I HAVE SEEN AMAZING THINGS 一文，对Li Qiang旅行的第三站有个总体的印象，并能找出部分细节知识。
1.7 SUMMING UP 部分归纳了本单元的主要学习内容并让学生自我检测一下学习效果。
1.8 LEARNING TIP 部分告诉学生在讨论时记笔记的好处和方法。
2. 教材重组
2.1 可将Warming Up, Pre-reading, Reading 和 Comprehending 整合在一起上一节精读课。
2.2 Using Lan ( http: / / www.21cnjy.com )guage 中的reading 和 listening 是 Li Qiang’s travel to the future的延续，可将这两部分及Workbook 中的LISTENING整合起来上一节听力课。
2.3可将Learning abou ( http: / / www.21cnjy.com )t Language 和 Workbook 中的 USING WORDS AND EXPRESSIONS 及USING STRUCTURES整合起来上一节语法课。
2.4 将 Workbook 中的 R ( http: / / www.21cnjy.com )EADING TASK 和 LISTENING TASK 结合起来上一节泛读课，进一步拓展学生的思维和想象力。
2.5 将 Using ( http: / / www.21cnjy.com )Language中的speaking 和 Workbook中的TALKING 整合在一起上一节口语课，鼓励学生对现在进行反思，对未来进行大胆猜测(make predictions)。
2.6 将Workbook 中的 ( http: / / www.21cnjy.com )SPEAKING TASK 和 WRITING TASK 整合起来上一节写作课，同时对整个单元进行一个小结。
3. 课型设计与课时分配
1st Period Reading
2nd Period Listening
3rd Period Grammar
4th Period Extensive Reading
5th Period Speaking
6th Period Writing
The Fourth Period Extensive Reading
Teaching goals 教学目标
1. Target language目标语言
a. 重点词汇和短语
imitate, spin, shut ( http: / / www.21cnjy.com )tle-submarine, destination, sensor, be essential for, contact
b. 重点句式
The sea bottom is deep and this makes it difficult to.. P58
Only the robot cleaner will be able to move objects. P58
2. Ability goals能力目标
Enable the Ss to dis ( http: / / www.21cnjy.com )cuss the possibilities and the difficulties of living under the sea.
3. Learning ability goals 学能目标
Help the Ss learn how ( http: / / www.21cnjy.com )to talk about the possibilities and the difficulties of living under the sea.
Teaching important ＆ difficult points 教学重难点
Talk about the possibilities of living under the sea.
Teaching methods 教学方法
Fast and careful reading; asking and answering activity; discussion.
Teaching aids 教具准备
A computer and a projector.
Teaching procedures ＆ ways 教学过程与方式
Step I Warming up
Lead in the topic ( http: / / www.21cnjy.com )by discussing the possibilities of living under the sea. Encourage the Ss to use their imaginations.
T: Have you ever wa ( http: / / www.21cnjy.com )tched the movie “The Little Mermaid” Do you like the sea I myself like the sea very much. I always think that how great it will be if I have the chance to live under the sea! Do you think living under the sea is possible Why Now please work in pairs to discuss the three questions on the screen.
Show the following questions on the screen and hold a discussion.
1. Do you think living under the sea is possible
2. Where are you going to live under the sea
3. In the undersea c ( http: / / www.21cnjy.com )ities, what equipments do you think are necessary
Ten minutes later, ask some Ss to answer the questions.
T: Have you finis ( http: / / www.21cnjy.com )hed Who would like to tell us your opinion Volunteer
S: I think it’s po ( http: / / www.21cnjy.com )ssible. Maybe in the future scientists will invent some kind of equipment that makes it possible for human being to live under the sea.
T: If it is possibl ( http: / / www.21cnjy.com )e, where are you going to live under the sea There is all water and fishes around you.
S: Maybe in a ( http: / / www.21cnjy.com )special equipment which will provide us much-needed oxygen and can float in the water. In that case we can travel in the sea to enjoy the wonderful view of the sea.
T: Good. If y ( http: / / www.21cnjy.com )ou are going to live under the sea, what kind of equipment do you think is necessary for your living
S: Oxygen provision and cleaning machine may be necessary.
Step Ⅱ Reading
Deal with the passage on page 58.
T: OK. From what you ( http: / / www.21cnjy.com )said, I know all of you are looking forward to living under the sea. Now a company just provides the very service! Please turn to page 58 and read the passage RISING TO A CHALLENGE. Let’s see what the life will be like in this undersea city. When you finish reading, complete the sentences on the screen.
Give the Ss 3 minutes to go through the whole passage.
1. The undersea city i ( http: / / www.21cnjy.com )s so comfortable that it is described as ___________ .
2. The undersea city has the following advantages:
a. _____________
b. _____________
c. _____________
d. _____________
T: Can you find out so ( http: / / www.21cnjy.com )me suitable sentences or words to fill in the blanks What’re the advantages of living under the sea
S: The underse ( http: / / www.21cnjy.com )a city is so comfortable that it is described as “a silk adventure”.
S: The undersea ( http: / / www.21cnjy.com )city has the following advantages: a. easy contact with the land surface; b. more personal space; c. complete personal security; d. no housework worries.
T: That’s great. You ( http: / / www.21cnjy.com )all have got the general idea of the passage. Now let’s look into some detailed aspects of the undersea city. First let’s look at its contact with the land surface. Who would like to tell me at the very beginning, what kind of problem were they facing And how was the problem solved
S: The sea bottom i ( http: / / www.21cnjy.com )s so deep that it’s hard to contact with the land surface. But later they invented the one-person or family shuttle-submarines which will always be ready to take people to the surface.
T: So in that cas ( http: / / www.21cnjy.com )e people who live under the sea can easily contact with the land surface. Then com-paring with living on land, what advantage do you think can attract people to live under the sea
S: We can get twice as much personal space as in flats on land.
T: Good! Then wh ( http: / / www.21cnjy.com )at kind of special equipment will be provided so as to realize all the advantages Please read the text again and finish the following chart. You can work with your partners.
Show the chart on t ( http: / / www.21cnjy.com )he screen and give the Ss 3 minutes to go through the whole text again to scan for the answer. A few minutes later, check the answers.
Advantages Special equipments How does it become realized
Easy contact with land One person or family shuttle-submarines Always ready to t ( http: / / www.21cnjy.com )ake people to the surface, a special small, computerized machine to monitor each person during the trip.
More personal space Get twice as much ( http: / / www.21cnjy.com )personal space as in flats on land, your house can float in the water.
Complete personal security Computer sensor Can feel the space ( http: / / www.21cnjy.com )left; only when the robot cleaner touches objects can they be moved.
No house- work worries Family used robots Feed your details into the computer hard-drive; answer your commands.
T: This unde ( http: / / www.21cnjy.com )rsea city is amazing. But I think designing such kind of undersea city is quite difficult! Do you want to meet its designer Now the designer of the city William Lee is being interview. Let’s listen to his interview and find out which two problems he came across and how he solved them. Then please finish the exercises on page 59.
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Step Ⅲ Follow-up Activity
Set a scene for t ( http: / / www.21cnjy.com )he Ss: The company is going to held a press conference and exhibition. Encourage the Ss to design a poster which will draw visitors’ attention and provide some useful information.
T: We know t ( http: / / www.21cnjy.com )hat all new products have to be promoted so that it can be well-known among people. Now a press conference and exhibition is going to be held to make the undersea city known to people. If you work in the company, can you design a special poster to draw visitors’ attention so that they will come to the press conference Use your imagination and you can discuss with your group members.
A Sample poster:
( http: / / www.21cnjy.com / )Come to this meetingSee the value of OUR undersea houses.Saturation City has:● easy contact with the land surface ● more personal space● complete personal security ● no housework worriesCost: 20 dollarsDate: May 18thTime: 8:00 amPlace: The Science Exhibition Building
Step Ⅳ Homework
T: After class, p ( http: / / www.21cnjy.com )lease listen to the tape repeatedly until you can retell it yourselves and pay attention to pronunciation.