高二英语making a difference教案5

The

Fifth

PeriodThe

InfinitiveTeaching

Aims:Summarize

the

usages

of

the

Infinitive.Teaching

Important

Points:1.

Let

the

students

master

theverbs

followed

directly

by

theinfinitive

and

theverbs

followed

by

theobject

and

the

Infinitive

as

theobject

complement

without

“to”.2.

Let

the

students

master

theInfinitive

as

Adverbial3.

Let

the

students

master

theInfinitive

as

Attribute.Teaching

Difficult

Points:1.

Help

thestudents

master

thefollowing

sentencepatterns:It

is+adj./n.

+for

sb./of

sb.

to

do

sth.Sub.

+v.

+it+adj./n.

+to

do

sth.2.

ThePerfect

Infinitive

and

thePassive

Infinitive.3.

TheNegative

Form

of

the

Infinitive.Teaching

Methods.review,

explanation

and

inductive

methodsTeaching

Aids:1.

a

slide

projector

2.

theblackboardTeaching

Procedures:Step

I

GreetingsGreet

thewhole

class

as

usual.Step

Ⅱ

RevisionT:

Today

we'll

review

the

Infinitive.

(Bb:

TheInfinitive)

First

let's

do

an

exercise.

Fill

in

theblanks

withthe

best

answer.

(Show

theexerciseon

thescreen.)

Choose

thebest

answers.1.

Weagreed

A.

having

meet

C.

to

meethere

but

so

far

shehasn't

turned

up

get.

B.

meeting

D.

to

havemet2.

Theboy

wanted

to

ride

his

bicycle

in

thestreet,

but

his

mother

told

himA.

not

toC.

not

do

itB.

not

to

doD.

do

not

to3.

When

I

handed

the

report

to

John,

he

said

that

George

was

thepersonA.

to

sendC.

to

sent

it

toB.

for

sending

itD.

for

sending

it

to

T:

Now

look

at

thescreen.

I'll

ask

threeof

you

to

tell

theanswers

oneby

one.

Any

volunteers?S1:Thefirst

answer

is

C.S2:Thesecond

answer

is

A.S3:

Thethird

answer

is

C.T:Well

done!

Sit

down

please.

Who

can

tell

methe

function

of

each

Infinitive

in

thethree

sentences?S4:I

can.…Suggested

answers:1.

Object2.

Object

complement3.

AttributeStep

Ⅲ

Explanation

and

SummaryT:

As

weall

know,

theInfinitive

is

used

as

the

object

of

the

verb

“agree”

in

the

first

sentence.

Now

canyou

think

of

any

other

verbs

followed

by

theinfinitive

as

their

objects?Ss:

Afford,

arrange,

ask,

beg,

choose,

decide,

expect,

fail,

hope,

manage,

offer,

pretend,

promise,

refuse,want,

wish

and

so

on.(Write

them

on

the

blackboard.)T:

Very

good.

There

aresomeverbs

followed

by

either

the

Infinitive

or

the

v.-ing

form.

Do

you

knowwhat

they

are.'?Ss:

Like,

begin,

continue,

forget,

regret,

remember,

start,

stop,

try'”T:

Right.

But

attention

please.

The

verbs

“begin,

continue,

like,

love,

start”can

be

followed

by

eitherthe

Infinitive

or

the

v.

-ing

form.

(Bb:

begin,

continue,

like,

love,

start)And

they

have

the

samemeaning.

While

the

verbs

“for

get,

regret,

remember,

stop,

try”can

also

befollowed

by

the

Infinitive

orthe

v.

-ing

form.

(Bb~

forget,

regret,

remember,

stop,

try)

Therearesome

differences

between

them.

Nowlook

at

the

examples

on

thescreen.(Show

thescreen.)1.

I

like

playing

football,

but

I

don’t

like

to

play

it

now.2.

I

remember

seeing

her

oncesomewhere.3.

I

must

remember

to

takemy

notebooks

with

me.T:

From

thefirst

sentence,

weknow

the

v.-ing

form

is

an

action

in

general

while

the

Infinitive

is

an

actionon

a

certain

occasion.

In

thesecond

and

thethird

sentences,

the

v.-ing

form

is

used

for

a

past

event

whilethe

infinitive

is

used

for

a

futureaction.

Are

you

clear?Ss..

Yes.T:

Please

translate

the

sentences

into

Chinese.

One

student

,

one

sentence.S4:我喜欢踢足球，但现在不愿意。S5：我记得在哪里见过她。S6：我必须记住带上笔记本。T:

Good.

When

the

Infinitive

is

used

as

Object

and

is

followed

by

Object

complement,

weoften

usethisstructure.

S.

+

V.

+

it

+

adj.

In.

+

infinitive.

(Write

it

on

theblackboard.)Now

please

make

somesentenceswith

the

structure.S7:

I

thought

it

unnecessary

to

arguewith

him

about

it.S8:

He

considers

it

his

duty

to

help

others.T:

Very

good.

Which

verbs

do

you

think

can

be

followed

by

the

Infinitive

as

Object

Complement?

Ss:Advise,

allow,

ask,

want,

wish,

order,

tell,

have,

let,

make,

feel,

hear,

watch,

see…T:

Yes.

Someverbs,

like

“advise,

allow,

ask,

want,

wish…”must

befollowed

by

the

Infinitive

with

“to”,while

theverbs

“

have,

let,

make,

feel,

hear,

watch,

see…”must

befollowed

by

the

Infinitive

without"to".

(Bb:

advise,

allow,

ask,

want,

wish,

order,…

have,

let,

make,

feel,

hear,

watch…)

But

you

mustn'tforget

“to”

in

the

passive

voice.

Look

at

theexamples

on

the

screen.(Show

thescreen.)1.

We

often

hear

her

sing

the

folk

song.=

Sheis

often

heard

to

sing

thefolk

song.2.

Thegirl

wanted

to

go

dancing,

but

her

mother

told

her

not

toT:

In

the

second

sentence,

“not”is

put

before

theInfinitive.

(Bb:

not

to

do

sth.

)

To

avoid

repetition,

theverb

after

thesign

"to"

is

often

omitted.

But

“to”can't

beleft

out.

This

is

doneafter

such

verbs

as,,

want,wish,

like,

love,

hope,

plan,

try,

hateetc.

Now

look

at

the

examples

on

the

screen.(Show

thescreen.)1.－Would

you

like

to

cometo

aparty?－I’d

love

to.2.－Have

you

listened－No,

but

I

plan

to.3.

You

don't

have

to

eat

it

if

you

don't

want

to.T:

When

the

infinitive

phraseis

used

as

subject,

theformal

subject

“it”

is

often

used,

that

is,

“It's+n./adj.

+infinitive”.

If

weneed

to

tell

who

performs

theaction

of

the

infinitive,

wecan

put

"for

sb./for

sb.

"beforethe

infinitive.

(Bb:

It's

+

adj.

/

n.

+

for/of

sb.

+

infinitive.)Some

adjectives,

such

as,

kind,

good,

wise,stupid,

foolish,

careless,

clever…,

must

befollowed

by

“of

sb.

to

do

sth.

”

In

this

case,

thesentenceemphasizes

“per-

son”.

If

weuse“for

sb.

to

do

sth.”

it

emphasizes

“thing”.

Please

look

at

thesentences

onthe

screen

and

comparethem,

then

fill

in

the

blanks

with

“of”

or

“for”.(Show

theexerciseon

thescreen.)1.

It

issillyus

to

believe

her.2.

It

isimpossible

the

task

so

soon.3.

It

is4.

It

isnicenecessaryyou

to

help

me.

us

to

take

exercise.(Teacher

asks

four

answers.)Suggested

answers:1.

of2.

for3.

of4.forT:Now

look

at

the

sentences

on

the

screen.

Pay

attention

to

the

forms

of

theinfinitive

in

the

sentences.

1.

She

asked

tobesent

to

work

in

Tibet.

2.

I

am

glad

tohaveseen

your

mother,

3.

We

didn't

expect

you

to

bewaiting

for

us

here.T:

In

the

first

sentence,

thepassiveinfinitive

is

used,

which

expresses

apassive

action.

In

the

secondsentence,

weusetheperfect

infinitive.

When

do

you

think

theperfect

infinitive

is

used?Ss:

When

theaction

expressed

by

the

infinitive

happens

beforethe

predicate,

the

perfect

infinitive

shouldbe

used.T:

Quite

right.

Now

look

at

thethird

sentence.

Thecontinuous

form

of

theinfinitive

is

used.

When

theaction

is

happening,

weusethe

continuous

form

of

theinfinitive.

(Bb:

to

be

done,

to

have

done,

to

bedoing)T:Now

let's

do

an

exercise.

(Show

theexerciseon

thescreen.)Choose

thecorrect

answers:1.

I

have

two

letters2.1

have

no

letters

A.

to

type3.

I'd

like

to4.

I'd

like

to

A.

go

today.

today,

thank

you.

B.

to

be

typed

to

the

cinema

to

night.to

the

cinema

last

night.

B.

havegone5.

When

his

mother

camein,

the

little

boy

just

pretended.B.

to

have

read

D.

to

be

reading

A.

to

read

C.

to

bereadSuggested

answers:1.

A2.

B3.

A4.

B5.

DT:

Besides,

theinfinitive

can

also

be

used

as

predicative,

attribute,

adverbial

for

purposeand

for

adisappointing

sequel.

Now

look

at

the

sentences

on

thescreen.

Pay

attention

to

the

usages

of

theinfinitive.1.

He

doesn't

seem

toliketheidea.2.

Theboy

uses

acomputer

toplaygames

.3.

She

hurried

to

thestation

onlytofindthetrainhadgone.4.

Thereare

letters

tobetyped

.5.

I

have

nothing

todo.6.

Please

pass

me

apen

towritewith.T:

In

the

last

two

sentences,

themeaning

is

passive,

but

theactive

infinitive

is

used.

You

must

payattention

to

it.Step

IV

Practiceand

ConsolidationT:

Now

you

have

known

all

about

the

infinitive.

Let's

do

someexercises

to

have

aconsolidation

so

thatwecan

useit

correctly.

Pleaselook

at

the

screen.Fill

in

the

blanks

with

the

proper

forms

of

verbs.1.

He

hopes2.

My

wish

is(invite)

to

theparty.

(become)

an

engineer.3.

I

have

something

important4.

Theold

man

made

it

a

rule

(tell)

you.(take)

a

walk

after

supper.5.

I

regret6.

Thebook

is

said(tell)

you

that

my

sister

regretted

(miss)

thelecture

given

by

Professor

Li.

(translate)

into

several

languages.(answer).

(lose).7.

Thequestion

is

easy8.

Let's

hurry.

Thereis

no

timeSuggested

answers：1.

to

be

invited3.

to

tell5.

to

tell;

missing

2.

to

become4.

to

take6.

to

have

been

translated7.

to

answer

8.

to

loseT:

Let's

do

another

exerciseon

the

screen.Correct

thefollowing

sentences.1.

English

is

not

easy

to

be

learned.2.

For

making

sureabout

the

meaning,

I

looked

up

the

word

in

a

dictionary.3.

Please

give

the

child

something

to

play.4.

She

doesn't

like

to

praise.5.

He

did

everything

hecould

savethe

old

man.Suggested

answers:1.

to

be

learned→to

learn2.

For

making→To