Learning about Language教案和学案内容

SB2 Unit 3 Computers

Period 2 Learning

about

Language

The

General

Idea

of

This

Period：

This

period

includes

revision

of

the

text--learning

about

language. From

this

period

the

students

will

learn

how

to

use

some

of

the

key

words

and

expressions

in

the

text

and

do

some

exercises

for

consolidation，and

learn

how

to

use

the

Present

Perfect

Passive

Voice.

Teaching

Aims：

1.

Help

the

students

to

learn

to

use

some

useful

words

and

expressions.

2.

Enable

the

students

to

learn

how

to

use

the

present

perfect

passive

voice.

Teaching

Important

Point：

The

use

of

the

present

perfect

passive

voice.

Teaching

Difficult

Points：

How

to

master

the

usages

of

some

important

words

and

phrases

and

the

Present

Perfect

Passive

Voice.

Teaching

Methods：

1.

Task-based

learning.

2.

Cooperative

learning.

3.

Explanation

and

practice.

Teaching

Aids：

1.

A

tape

recorder.

2.

A

multimedia.

Teaching

Procedures：

Step

1

Revision

T：Boys

and

girls，in

last

period

we

learned

something

about

the

history

and

development of

computers.Now

who

would

like

to

retell

the

text

with

the

help

of

these

figures?

S1：Let

me

try.In

1642，a

calculating

machine

was

used

in

France.Then

in

1922，the

Analytical

Machine

was

made

by

Charles

Babbage.It

could

follow

instructions

from

cards

with

holes.In

1936，Alan

Turing，the

real

father

of

computers，wrote

a

book

to

describe how

computers

could

be

made

to

work

and

built

a

“universal

machine”

to

solve

any mathematical

problem.Later，people

discovered

the

computer

had

“artificial

intelligence”.In the

1960s，the

computer

got

his

new

transistors.Its

size

was

totally

changes

at

that

time.And

in

the

early

1960s，the

first

family

of

computers

were

connected

to

each

other.In

1970s，computers

have

brought

into

people’s

homes.Now

computers

have

been used

by

billions

of

people

to

deal

with

information

and

communicate

with

each

other

around

the

world

by

the

Internet.

T：Congratulations!You’ve

done

very

well.Now

try

to

do

the

same

to

your

partners，OK! Step

2

Words

and

Expressions

Task

1

T：Please

turn

to

Page

19

and

finish

Discovering

Useful

Words

and

Expressions.At

first，look

at

Ex.1.From

the

reading

passage，find

the

words

and

expressions

with

the

following meanings.Now，ten

students

will

be

asked

to

give

the

words.Who

can?Volunteers!

Check the

answers

together.

Task

2

T：Well

done.Now

please

look

at

Ex

2.and

complete

the

passage

with

some

of

the

words above. Pay

attention

to

the

use

and

the

forms

of

those

words.

The

possible

answers：

network

so

that

went

by

totally

truly

simple-minded

Anyway

deal

with

Task

3

T：Please

finish

Ex.3.Look

at

the

sentences

on

Page

20.Tick

the

right

word.Then

some

of

you

will

be

asked

to

read

the

sentences

one

by

one.

The

possible

answers：

1. Life

totally

changed

when

I

went

to

university.

2. I

was

amazed

to

find

that

I

won

the

competition

to

design

a

new

computer.

3. The

competition

was

so

exciting

that

we

cheered

all

evening.

4. I

was

so

excited

at

the

thought

of

meeting

Yang

Liwei

that

I

could

not

sleep.

5. Robots

can

be

bought

so

cheaply

that

I

gave

one

to

each

of

my

friends.

6. It

was

so

unlucky

that

you

lost

your

watch

at

the

concert.

Task

4

T：Please

turn

to

Page

56

and

let’s

finish

Using

Words

and

Expressions.First

look

at

Ex.1.Read

through

the

words

in

the

right-hand

box

below.Use

some

of

them

to

name

each

part

of

a

computer

in

the

left-hand

box. We

have

known

about

computer. But

who

can

give

us

the

exact

names?

The

possible

answers：

1.

floppy

disc

2.hard

disc

3.scanner

4.modem

5. CD-ROM

6.monitor

7.keyboard

8.printer

Task

5

T：Now

please

look

at

Ex.2.Complete

the

sentences

with

some

of

the

words

in

the

right-hand

box

above.You

can

use

each

word

only

once.First

do

the

exercise

individually，and

then

check

your

answers

with

your

partners.And

last

seven

students

will

be

asked

to

report

their

answers

to

the

class.

The

possible

answers：

1.

A

printer

is

a

machine

for

printing

text

or

pictures

onto

paper，especially

once

connected

to

a

computer.

2.

A

CD-ROM

or

disk

is

the

main

device

that

a

computer

uses

to

store

information.

3.

A

monitor

is

used

to

see

your

data

on

a

computer.

4.

A

keyboard

is

used

to

put

data

into

a

computer.

5.

A

CPU

is

often

used

to

connect

computers

to

each

other

through

phone

lines.

6.

Data

can

also

be

stored

in

a

floppy

disc，which

is

small

and

can

be

carried

easily.

7.

A

hard

disc

is

a

disc

that

contains

computer

data.It

can

store

a

large

amount

of

data.

Step

3

Grammar—The

Present

Perfect

Passive

Voice

T：Boys

and

girls，now

please

pay

attention

to

the

following

sentences

in

the

text：

1.

As

the

years

have

gone

by，I

have

been

made

smaller

and

smaller.

2.

Since

then，my

family

and

I

have

been

used

by

billions

of

people

to

deal

with

information

and

communicate

with

each

other

around

the

world

by

the

Internet.

3.

I

have

truly

been

built

to

serve

the

human

race

since

my

birth.

T：What

verb

tense

is

used

in

these

sentences?And

what

verb

voice

is

used

in

these

sentences?

Yes，the

present

perfect

passive

voice

is

used

in

these

sentences.

Can

you

tell

us

the

structure

of

the

present

perfect

passive

voice?

Quite

right. The

structure

of

the

present

perfect

passive

voice

is

“subject＋have/has

been

done＋object”. The

function

of

present

perfect

passive

voice

is

indicating

verbs’

the

present

perfect

and

the

passive

voice.OK，let’s

practise

the

present

perfect

passive

voice.

Task

1

T：Please

turn

to

Page

20.Let’s

finish

Discovering

useful

structures.

At

first，look

at

Ex.2.According

to

examples，change

the

following

sentences

into

the

present

perfect

passive

voice.Put

the

verbs

into

the

correct

form.

Suggested

answers：

1.

A

new

personal

computer

has

been

bought.

2.

Many

problems

have

been

found

with

our

new

computer.

3.

A

PC

has

been

built

the

way

we

wanted.

4.

Our

computer

has

just

joined

to

the

Internet.

5.

The

computer

has

been

used

every

day

since

we

bought

it.

6.

A

lot

of

e-mails

have

been

written

on

the

computer

in

the

last

year.

Task

2

T：Class，let’s

play

a

game

called

“What

has

been

decided”.Now，get

into

groups

of

four.Your

task

is

to

decide

what

things

have

been

decided

for

the

class.Take

turns

to

make

the

ideas

as

interesting

and

lively

as

you

like.You

may

finish

them

according

to

EXAMPLES

on

Page

21，（or

finish

Ex.3

after

class.）Then

collect

the

ones

you

all

like

best and

be

prepared

to

tell

them

to

the

class.

Suggested

answers：

S1：It

has

been

decided

that

those

who

know

of

the

computer

will

be

asked

to

say

something

in

class.

S2：It

has

been

decided

that

those

who

didn’t

clean

the

blackboard

will

be

asked

to

come

into

office

after

school.

Task

3

T：Now，please

turn

to

Page

57.Finish

using

structures.First，look

at

Ex.1

and

change

the

following

sentences

according

to

the

model，and

pay

attention

to

the

passive

voice

form.First

do

the

exercise

individually，and

then

check

your

answers

with

your

partners.After

that

we’ll

check

the

answers

in

class.

Step

4

Homework

T：OK，it’s

almost

time

for

a

break.Now

look

at

Ex.2

on

Page

57.Translate

the

following sentences

into

English

after

class.The

words

and

expressions

in

brackets

may

help

you.

Step

5

The

Design

of

the

Writing

on

the

Blackboard

Unit

3

Computers

Period

2

The

Present

Perfect

Passive

Voice

1.

As

the

years

have

gone

by，I

have

been

made

smaller

and

smaller.

2.

Since

then，my

family

and

I

have

been

used

by

billions

of

people

to

deal

with

information

and

communicate

with

each

other

around

the

world

by

the

Internet.

3.

I

have

truly

been

built

to

serve

the

human

race

since

my

birth.

Structure ：“

subject+have/has

been

done+object”

Step

6

Record

after

Teaching