Learning about Language教学实录及点评

Unit3 Computers Learning about language:Discovering useful words and expressions Aims

目标

1.To find and learn the useful words or expressions from the text 找出并学习文中重点词汇及相关表达

(1)The object and its parts,contents 物品及相关配件

Network\ web\ mouse\ keyboard\

(2)Applications\uses 用途

mathematical problems \ communication\

finance \

trade\ medical operations

(3)Verbs and verb phrases 关于用途的动词表达

To simplify difficult sums \ to solve difficult mathematical problems \ be put into robots \ to provide human with a life of high quality \ be important in communication and finance

(4)Development\Crescendo 发展变化

Calculate machine \ analytical machine \ PC \ laptop

\ tablet PC Revolution \

(5)

Compounds\ cliches 常用套话

to download information from the Internet \ to surf the Internet

2.To enable the students to describe the developmental process of computers by using the sequence of order 让学生学会用时间顺序来描述计算机发展

Activities

活动

Step1. warming-up What is in my bag 猜测游戏：我的包里是什么

(1)Have the tablet PC thickly wrapped with newspaper in a bag. (2)Write some sentences starters on the board: I think...\ it’s ..., definitely\ it’s probably...\ it could be...\it can’t be\ it might be... (3)

Students see and feel the object through the bag and speculate about what it is, using the sentences given on the screen. (4)

Elicit words for its shape. Write them on the screen. (5)

Elicit words for its texture. Write them on the screen. (6)

Keeping the tablet PC in the bag, remove the newspaper. Let the students feel again. Write the following sentences on the screen: If it was a book, it’d could be bent. If it was laptop, it’d be larger.

(7)

Take the tablet PC out of the bag and let everyone see it and show the students what they will learn today.

Step2. To find and learn the useful words by doing tasks Task 1: What do we use computers to do in daily life? To know more about the world (such as to surf the internet, to download needed information)

to learn skills (such as to learn to play the guitar, to learn to plat the basketball) to entertain ourselves (such as to listen to music, to watch movie) to keep in touch with our families and friends (communicate with families and friends) Task 2

What do others use computers to do? Doctors

Scientists Business owners Farmers Teachers

Factories

use computers use computers use computers to water the plants to prepare for lessons to make mobile phones use computers use computers use computers to help with medical operations to explore the Moon and Mars to sell things and earn money Task 3 Retell the sentences mentioned above with the help of pictures ( for more detail to see the PPT) Task 4 To learn the brief history of computers by filling in the blanks in the graph

( for more detail to see the PPT)

stages Calculating machine computers Time,applications and features 

In 1643 

Be used to simplify difficult sums 

After 1936 

Grew both in size and brainpower 

Grew as large as a house PC\laptop 

As time went by 

Be made smaller



First as a PC and then as a laptop Task 5 Story time: Suppose computers told their stories, what would they say? With the help of the graph ,students work in groups to tell the stories. Acquisition

习得

Do exercises on page20