Part

ALook

at the

structure

inthe

following

table.‘If’-clause(simple

present

tense)Main

clause(simple

future

tense)If

it

stops

raining

,I’ll

go

for

a

walk.Ifit

doesn’t

raintomorrow,we’ll

play

basketball.Look

at the

pictures

andmake

up

sentences.If

I

go

to

North

Africa,

I

will

see

a

lot

ofcamels.I

will

see

some

beautiful

birds

if

I

walkthrough

a

rainforest.If

hunters

catch

a

giant

panda,

they

will

killit

for

itsfur.8.

If

I

see

a

snake

in

front

of

me,

I

will

run

theother

way.Practice如果明天我有空,我將會去打羽毛球。If I

am

free

tomorrow,

I’ll

go

to

play

badminton.如果今天下午下雨,

將干什么?What

will

you fit

rains

this

afternoon?如果雨不停,他們就將呆在家里。They

will

stay

at

home

if

it

doesn’t

stop

raining.注意:當if

引導的條件狀語從句表示將來“可能”發生的情況時,主句用一般將來時,而從句則用一般現在時來代替一般將來時.Part

BLook

at the

structure

inthe

following

table.‘If’-clause(simple

present

tense)Main

clause(simple

present

tense)If

tigers

arehungry,they

attackpeople.If

giant

pandashave

no

food,they

die.Look

at the

pictures

andmake

up

sentences.live

in forests,

never

eats

de eople,

thick,brown

and

grey

fur,

big

head,

short

tail,strongIf

a

bear

is

in

danger,

it

attacks

people.live

on land,

eat

grass

and

fruits,

can

carryheavy

wood,

long

nose, long

teeth,

big

ears,If

elephants

are

thirsty,

they

walk

till

theyfind

water.live

in holes

or

water,

eat

somesmaller

animals,

poisonousSome

snakes

spit

poison

if

you

step

on

them.Male

wolves

protect

their

families

if

there

isdanger.live

in

forests,

eat

meat

or

some

animals,look

like

a

dog,

dangerous當if引導的條件狀語從句表示重復性,可預見的情況或

動作時,主句用一般現在時,而從句也用一般現在時.If

you

heat

ice,

it

melts.If

you

pour

oil

on

water,

it

floats.If

the

temperature

drops

to

zero,

waterfreezes.Amy:Mr

zhao: What

does

a

bear fit

is

in

danger?Amy: If

a

bear

is

in

danger,

it

attacks

people.Mr

zhao:

What

does

apolar

bear fit

ishungry?Amy: If

a

polar

bear

is

hungry

,

it

catches

fish

fromthe

water.Mr

Zhao:

What

do

elephants f

they

are

thirsty?Amy: Ifelephants

are

thirsty,

they

walk

till

they

findariver.Mr

Zhao: What

do

some

snakes f

youstep

on

them?Amy: Some

snakes

spit

poison

ifyou

step

on

them

.Mr

Zhao: What

do

male

wolves f

there

is

danger?Male

wolves

protect

their

familiesif

there

is

danger

.Ask

some

questions

about

wild

animalsLook

at

the

picture

andcomplete

the

passagelive

in forests

or

mountains,

eatsome

smaller

animals

or

meat,look

like

a

cat,

not

friendlytigerName:

Zhao

Ai

jia

.Grade:

8

.A

report

on

wild

animalsIf

tigers

live

in

thewild,

they

(

hunt)

for

theirown

food

.

They

live

as

a

family

if

they

(

have)babies.

Baby

tigers

(learn)

how

to

catch

otheranimals

if

they

watch

their

mothers.Wolves

live

in

family

groups

if

they