Learning about Languageppt课件课堂实录

人教版高中英语M2U3 Computers --- Discovering words and expressions 教学设计

温州第二十一中学

吴炫露

一、

设计理念

《普通高中英语课程标准（2017版）》指出词汇学习是结合具体主题、在特定语境下开展的综合性语言实践活动。在活动中，根据词性、词语的习惯搭配和主题内容，构建不同词汇语义网，积累词块，扩大词汇量，并在大量的语言学习活动中，强化语感，迁移词汇运用能力，最终做到词语内化。根据Nation(2007)的词汇教学设计原理，词汇学习除了以意义为中心的“附带学习”外，还需要进行以语言学习为中心的“刻意学习”。以语言学习为中心的词汇学习，在活动设计上要使学生在深入理解文本的基础上，集中而有意识地学习目标词汇的形式、意义和用法，在文本和与之相关的新语境中，在运用目标词汇进行各种交际活动中，自然地完成内化的过程。

二、

文本分析

这是一节针对阅读文章中的重点词汇开展的词汇教学课。这个单元的中心话题是计算机。主阅读篇章是以计算机的口吻自述其发展演变的历史以及计算机在当今世界各个领域的运用。文章属于科普类说明文，生词量多，包含较多的计算机专业术语，对于高一学生而言有一定的难度。本教学设计从话题和功能两个视角出发整理和归纳了文章中的重点词汇和短语。将这些词汇和短语分为三类，分别对应计算机的特点（intelligent，total，so…that…），计算机的能力（solve, explore）及计算机的应用（application）。通过回顾计算机的发展历史和计算机在当今世界各个领域的运用，学习和探究这些词的用法和词性变化，深化话题理解，推动话题表达活动，用所学的词汇表达对未来的计算机的设想。

三、

学情分析

本课的授课对象是温州市一所普通中学的高一学生。学生的学习态度较好，但是英语语言能力和思维能力相对较弱。在上课之前，学生对计算机的发展历史及其在当今世界各个领域的运用有一定程度的了解。但是这个话题比较枯燥，学生不是很感兴趣。因此在引入话题的同时，选择了动画视频辅助教学，期望以此调动学生的学习积极性。 四、

教学目标

经过本课的学习，学生能够达成如下目标

(一)语言能力

理解、发现和学会正确使用下列单词和短语：intelligent/ intelligence, solve/solution, explore, application/apply, total/totally, personal/ personally, in reality, so....that..., 等。

(二)学习能力

1. 通过个体独立学习，同伴互助，小组讨论等方式，观察、分析、归纳词汇的形式、意义和使用规则。

2. 以笔记的形式记录课堂学习的重难点。

(三)思维品质

运用创造性思维，开展想象，结合所学的内容和词汇描绘未来的计算机。

(四)文化品格

基于文本材料和视频材料,拓展科学文化知识, 进一步了解计算机的发展历程和应用情况，肯定科学家对其发展所做的贡献。

【教学重点】理解、发现和学会正确使用solve，explore，apply等词;

【教学难点】能够用所学词汇描述未来的计算机。

五、教学过程

步骤

教学活动

设计意图

核心素养提升点

Lead-in Step 1

T asks Ss the question about the computer and 从computerintroduces an intelligent kid called Sid to Ss. T: In this unit, we are learning computers. Could you 的定义入tell me what is a computer?

手，引出新A computer is an i_________ machine which can 词

think logically.

intelligent.

S1: …an intelligent machine…

利用图片，T: Yes, You are really intelligent. Today I’ll introduce an 引出新人intelligent kid to you. Do you know the boy? 物Sid，在Ss: No. 了解Sid基T: His name is Sid. Let’s learn more about Sid.

本信息的Sid is a kid of high i___________, who always asks 过程中，学i__________ questions. Recently Sid has developed 习interest in computers.

intelligent S2: Sid is a kid of high intelligence, who always asks and intelligenceintelligent questions. 的区别。

T presents Sid’s question: How has the computer 通过Sid的changed over time? Ss review what they have learnt 第一个问from the reading passage and watch the video to get 题，回顾计better understanding of it. Then Ss read passage A 算机的发which is based on the video to fill in blanks and 展演变历explore the usage of key words such as reality, total, 史。

so… that…

T: Sid asked many intelligent questions about

Computers. Let’s look at his first question.

Q1:How has the computer changed over time?

Ss: The computer began as a calculating machine.

Then it was built as an analytical machine. Later Alan

Turing wrote a book about how to make a universal

machine. Computers became larger and larger. As time

went by, they were made smaller, first as a personal

computer and then as a laptop. T: Let’s see how Sid learnt the information from his

Grandma. T plays the video about the change of computers. 通过观看Ss watch the video and then fill in the blanks. 视频和完

Discovering the usage of key words Step 2

The computers nowadays are so tiny, but you know, 成短文填computers were not always that small. No! When 空，进一步scientists first started making computers, they were 了解计算huge. ________, the very first computers were ____ 机的变化large _____ they filled up the ______room. Those 和发展。借first computers use lots of power. The scientists who 助短文引made them could never imagine one day people 出新词和even grandmas like me will be carrying around 短语reality, so… powerful computers of the size of a small book.

total,

Ss fill in the blanks with “in fact” “so…that…” that…

“entire”.

T presents 6 words for students and asks them to find

right words to replace “fact”

and “entire”.

total

totally

logical

logically

real

reality

Ss: Fact means reality. Entire means total. T: Look at grandma’s words. What’s the difference 通过学习between “so…that…” and “such…that…”

比较In fact, the very first computers were so large that

grandma说they filled up the entire room.

的两个句In fact, I have such a small computer that it can be 子，总结put into my purse.

so…that…Ss read the 2 sentences and make a conclusion about 和such…that…the usage of the two phrases. so+adj +that.. 的不同用such+ a noun/nouns+that 法。

T: Could you retell grandma’s words in another way?

初步学习In ______,the very first computers were ____large 用in reality, machines that they filled up the entire room.

so…that…In ______, my computer is _________ that it can be 和such… put into my purse.

that…来转S1: In reality,…such…

述grandmaS2: In reality,…so small…

的话。

Step 3

T presents a short passage with words “solve”, “solution” and “explore” in it. Ss study these words and explore their meanings and usage. Then Ss use these words to make sentences to talk about how computers help them with study. T: Computers nowadays are made smaller and smaller. But You can’t imagine what great difficulty scientists had in solving the problem.

You can’t imagine what great difficulty scientists had in solving the problem. After exploring several solutions to the problem, finally they got the idea to make it smaller.

语言能力：理解发现和运用词汇

创设语境，

引出词汇

solve,

solution。借

助语境，体

会学习它

们的用法

文化品

格：拓展

科学文

化知识,

T: look at the red words. Which one is the noun?

Which is the verb?

n. ________

v. _______

the solution to sth

T: What’ s the meaning of “the solution to sth”

S1:...的解决方法

T: Let’s look at another word “explore”. It has two

different meanings. Which one is the right meaning in

this sentence? Explore

利用1）study completely and carefully in order to find explore的out more about it.

不同词义，2) Travel into or through a place for the purpose of 进一步学discovery.

习其在不S2: the first one is the right meaning. 同语境中T: Could you match the meanings of “explore” with 的含义。

these sentences? A. Computers can be used to explore the unknown

world such as the underwater world.

B. Computers can be put into space rockets and

sent to explore the Moon and Mars.

C. I want to know more about computers. Come 通过造句and explore with me.

形式，帮助

S3: In sentence A, explore means study. 学生内化S4: In sentence B, explore means study. 所学词汇。S5: In sentence C, explore means travel.

在活动中T: Could you use these words (solve, solution, explore) 训练思维to make sentences about how computers help you with 与表达能study? You can discuss with your partner. 力

Step 4 进一步了解计算机的发展历程。肯定科学家对计算机发展所做出的巨大贡献。

语言能力：根据情境，推断词语的正确意义

思维品质：创造性的使用所学语言表达自己的想法

T presents the second question of Sid’s: What new 利用Sid的

applications have been found for computers? Ss 第二个问

answer the question according to what they have learnt 题，回顾计

from the reading passage. Then Ss discover the usage 算机在当

of “apply” and use them to talk about the applications 今世界各

of computers. 个领域的

T: Now let’s come and explore with Sid again. Sid 应用情况。

asked the second question. 通过语境，

Q2:

What new applications have been found for 学习apply

computers? 和S1: Computers have been applied to education, application

communication, finance, trade. 的用法。

S2: Computers have been applied to medical

operations, mobile phones and space rockets. T: Let’s look at the new words here. Which one is the

学习能

noun? Which is the verb?n. ___________

v. ___________ ...be applied to sth...

apply new technology to sth Ss: Application is a noun. Apply is a verb. T: What’s the meaning of “be applied to sth”?

S1: 被运用于…

T: What about “apply new technology to sth”? S2: 把新技术应用于

T: Now could you use what we learn to fill in the blanks? Computers are applied everywhere. They __________ (被应用于) personal electronic products such as alarm clock and walking shoes. Scientists also ______ computers to worldwide weather forecast and _________ (探索)outer space. What wonderful ___________ (应用)!!

S3: …are applied to…apply… explore… application.

T: Pay attention to the phrase “be applied to sth”. Should “to” here be followed by nouns or verbs? Ss: Nouns. T: So “to” here is a preposition. If it is followed by an action, we should use…

Ss: doing. T: Please try again. S3: …exploring…

Applications of key words Step 5

T presents Sid’s idea of his tiny ring computer. Then Students watch the video to learn more about it and use key words to complete the passage about Sid’s tiny ring computer. After that, students are expected to have a discussion with their group members and design their own future computers.

T: Personally, computers nowadays are very powerful. What about it in the future? What will the future computer be like? This is Sid’s idea about his future computer. Do you want to learn more about it? Ss: Yes. After watching the video, students read the passage about Sid’s tiny ring computer and use the key words they have learnt in the lesson to fill in blanks. In ______, it is ______ small ______ it can be worn on my finger. Although it is small, it can do a lot of things. It can calculate ______ (person) information

在语境中深化be applied to 中to的介词用法。

力：观察、分析、归纳词汇的形式、意义和使用规则。

利用视频，

激发学生对未来计算机的想象。

通过短文阅读和填空，巩固所

such as a person’s height and weight, and what she likes to eat when shaking hands with her. It also reads e-mails, shows movies on the wall and tells you how to make a hamburger. Anyhow, it is a ______(total)new idea! Can it be ______ (application) to our personal life?

Ss:… reality …so…that…personal…totally… applied

Step 6 After studying Sid’s future computer, students are expected to have a discussion with their group members and design their own future computers.

T: The short passage can be divided into 3 parts. What is the first part about? Ss: Its size and appearance. T: Yes. We can call it “character”. What about part 2 and part 3? Ss: Its ability and application. T: Could you design your own future computer? Try to describe its character, ability and application with the words we’ve learnt today. These questions may help you. What will it look like? What can it do? Which field will it be applied to? (sports, transportation or learning?)

Ss discuss with their group members and share their ideas about their future computers.

T: In order to make your passage smooth, you may use some linking words. Can you find the linking words in Sid’s passage?

Ss: in reality/ anyhow. T: If you want to express “in my opinion”, can you use another word? Ss: Personally. Students write a short passage to introduce their future computers with the new words learnt in the lesson 学词汇，积累表达所需要的语句。

通过计算机的三个方面character, ability, application，

梳理所学的词汇，并且学以致用，迁移语言运用能力，最终进行语言输出。

思维品质：创造性地表达自己的想法

学习能力：

自主学习，合作学习

Step 7 Homework

Write a short passage to introduce your own

future computer. Use at least three new words or expressions we have learnt today and underline them.

六、板书设计

M2 U3 Computers

Character (size/appearance)

Ability

Application

Linking words Words and expressions Intelligent/intelligence total/totally so+ adj+ that such+ a noun/nouns+ that solve solution to sth explore be applied to sth/ doing

personally, in reality, anyhow