Unit13We'retryingtosavetheearth!SectionA课件人教版英语九年级全册

Unit

13

We're

trying

to

save

the

earth!Section

A&1&

bottom的用法

【教材原文】Even

the

bottom

of

the

river

was

full

of

rubbish.甚至河底都布满了垃圾。

bottom作名词，意为“底部；最下部”，其反义词是top，意为“顶端；顶部”。常用短语：（at）

the

bottom

of

（在）……的底部；from

top

to

bottom从上到下;彻底地。例如：

We

cleaned

the

house

from

top

to

bottom.我们把房子彻底打扫了一遍。【对点练】

My

teacher

has

given

me

some

useful

suggestions

and

I

want

to

thank

him

from

the

________

of

my

heart.(

)AA.

bottom

B.

condition

C.

way

D.

surface&2&

play

a

part

in的用法

【教材原文】Everyone

in

this

town

should

play

a

part

in

cleaning

it

up!

这个镇上的每个人都应该参与清理它！

play

a

part

in当意为“参与”时，

相当于“take

part

in”；当意为“在……方面起作用;扮演角色”时，相当于“play

a

role

in”。例如：

Everyone

should

play

a

part

in

saving

the

earth.我们每个人都应该参与拯救地球。【对点练】

We

should

play

a

part

in__________（protect）

the

environment.protecting&3&

cut

down的用法

【教材原文】Well，to

cut

down

air

pollution，we

should

take

the

bus

or

subway

instead

of

driving.嗯，为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。（1）cut

down为“动词+副词”结构的短语，在此处意为“减少”。其后接的宾语如果为名词，位于down的前面或后面均可；如果宾语为代词，只能位于down的前面。（2）cut

down还可意为“砍倒”。【对点练】

如果你想攒钱，你应该减少不必要的开支。If

you

want

to

save

money，you

should

____

______

unnecessary

expenses.cutdown&4&

advantage的用法

【教材原文】There

are

other

advantages

of

bike

riding.骑自行车还有其他好处。

advantage作名词，意为“优点；有利条件”，其反义词为disadvantage，意为“缺点；不利条件”。advantage前不可用good，helpful，useful等词来修饰。take

advantage

of…意为“利用……”。【对点练】

网上购物有很多优点。____________________________________Online

shopping

has

many

advantages.&5&

make

a

difference的用法

【教材原文】So

together,our

actions

can

make

a

difference

and

lead

to

a

better

future!因此，我们齐心协力就能带来变化，创造更加美好的未来。

make

a

difference为固定短语，其后常接介词to，make

a

difference

to意为“对……产生影响或作用”，difference前可用much，big等词修饰，表示受影响的程度。【对点练】

有时候一个小小的行动能改变一个人的生活。_____________________________________________________________Sometimes

a

small

action

can

make

a

difference

to

a

person's

life.&6&

harmful的用法

【教材原文】This

is

not

only

cruel，but

also

harmful

to

the

environment.这不仅残忍，而且还对环境有害。

harmful是形容词，意为“有害的”，可构成短语be

harmful

to，意为“对……有害”。

【拓展】harm是harmful的名词形式，意为“伤害；损害”，可构成短语do

harm

to，意为“对……有害”，相当于be

harmful

to。例如：

Reading

in

bed

does

harm

to

our

eyes.=Reading

in

bed

is

harmful

to

our

eyes.躺在床上看书对我们的眼睛有害。【对点练】

Eating

junk

food

is

harmful

to

our

health.（改为同义句）Eating

junk

food_____

______

___

our

health.doesharmto&7&

afford的用法

【教材原文】Yes，we

can't

afford

to

wait

any

longer

to

take

action！是的，我们不能等待更长的时间来采取行动了。

afford作动词，意为“（从时间、财力、精力等方面）省出；抽出；负担得起……；买得起……”，常与can或be

able

to连用，常用结构为can/be

able

to

afford

sth.和can/be

able

to

afford

to

do

sth.。

例如：

Can

you

afford

to

go

out

for

a

picnic

this

weekend？这个周末你能抽出时间去野餐吗？【对点练】

The

poor

father

couldn't

afford

_______（pay）

for

his

son's

education.to

payⅠ.请根据课本2a和2b判断下列句子正误。正确的填“T”，错误的填“F”。1.They

were

talking

about

environmental

problems.(

)T2.Jason

and

Susan

can

often

see

blue

skies

now.(

)F3.Susan

thought

more

cars

caused

the

air

pollution.(

)T4.Jason

thought

there

wasn't

too

much

rubbish

in

the

streets.(

)F5.They

will

talk

about

what

they

can

do

next.(

)TⅡ.请根据课本3a回答问题。6.What

does

the

writer

think

of

people

cutting

off

shark

fins?____________________________________________________It

is

not

only

cruel,but

also

harmful

to

the

environment.7.What

will

happen

if

the

numbers

of

sharks

drop

too

low?___________________________________It

will

bring

danger

to

all

ocean

life.8.How

many

sharks

are

caught

and

traded

in

this

industry

every

year?_______________________________________________________________________________________Around

70

million

sharks

are

caught

and

traded

in

this

industry

every

year./Around

70

million.9.What

are

environmental

protection

groups

around

the

world

doing?___________________________________________They

are

teaching

the

public

about

“finning”.10.Are

shark

fins

good

for

health

according

to

the

passage?_______________No,they

aren't.Ⅲ.请根据课本3a完成短文填空。

Many

have

heard

of

shark

fin

soup.But

do

you

know

that

you're

11.

.

a

whole

shark

each

time

you

eat

a

bowl

of

shark

fin

soup?

Many

people

caught

12.

.

only

for

their

fins.They

cut

13.

.

their

fins

and

throw

the

sharks

back

into

the

ocean.This

is

not

only

cruel,but

14.

.

harmful

to

the

environment.15.

.

a

fin,a

shark

can

no

longer

swim

and

slowly

dies.killingsharksoffalsoWithout

Many

people

believe

that

sharks

can

never

get

endangered

16.