秋人教版英语九年级上册课件：Unit 13 Section A grammar focus

Section

A3Grammar

FocusUnit

13RevisionI.Check

ifyou

knowthese

phrases.1.

不同种类的污ifferent

kinds

of

pollution2.

河

底

thebottom

ofthe

river3.

把垃圾扔到河throw

rubbish

into

the

river4.

在……中起作pn

yapartin5.

在中国南部

in

southern

China6.

对

…

…

有

害

beharmfulto7.

在……顶部

at

the

top

of...8.

海洋生态系统the

ocean's

ecosystemII.Translation.1.这个方法不仅残酷还对环境有害。This

method

is

not

only

cruel,but

alsoharmfultothe

environment.2.鲨鱼处于海洋食物链的顶部。Sharksareatthe

top

of

the

food

chain

inthe

ocean's

ecosystem.3.许多人相信鱼翅对健康有好处。Alotof

peoplebelieve

that

shark'sfinsare

good

for

health.Payattentiontothesentences.1.We

'retryingtosavethe

earth

Presentprogressii2.Theriverused

to

beso

clean.usedto3.The

air

is

badly

polluted.

Passive

voice4.Noscientificstudieshaveshownthat

Present

perfectshark

fins

are

good

for

healthModalverbs5.We

shouldhelpsavethesharks.现在进行时：

Present

progressive定义：表示说话时(瞬间)正在进行的动作，也表示目前或现阶段正在进行的动作。结构：be(am/is/are)+v.-ing标

志

词

：Look,Listen,now,right

now,thesedays,thismonth...e.g.Look!Theboy

is

crying.Mr.Green

is

writing

a

book

these

days.ExerciseWhat

a

fine

day

today!Look!What

are

they

doing?used

to

do与be

used

to

doingused

to

do

sth.表示过去常常做某事，而现在往往不做了，后接动词原形。be

used

to

doing

sth.

表示习惯于做某事e.g.Iused

toget

upat

six

o'clock.Joe

isusedtodrinking

a

cup

ofcoffee

everymorning.Exercise1.她过去常常周末和朋友闲逛。She

used

to

hang

out

with

friendson

weekends.2.他习惯晚睡。He

is

used

to

staying

up.被

动

语

态

：Passivevoice定义：表示主语是动作的承受者，即行为动作的对象的一种语态。结构：be+

过去分词e.g.A

new

school

wasbuiltlast

year.Ourclassroomiscleaned

everyday.ExerciseTranslatethesentencesby

usingPassivevoice.1.emnge地

asisited物

谵me

old

peoplejustnow.2.

工

人

们

使

用

不

同

种

类

的

机

器

工

作Differentkinds

of

machines

areusedtoworkbytheworkers.大家应该也有点累了，稍作休息大家有疑问的，可以询问和交流现在完成时：Present

perfect定义：表示动作已经完成，但对现在造成影响；或者表示从过去某一时间开始一直延续到现在并还可能持续下去的动作。结构：has/have+过去分词标

志

词

：already,yet,ever,never,since,for

...e.g.I

haven't

finished

my

homework

yet.ExerciseCompletethefollowingsentences.1.I

have

been

(be)in

Beijing

for

two

years.2.I

have

neheard

(hear)of

thatmanbe3.Tomhasworked(work)theresincetwoy4.Thetwihavewashed

_(wash)the

clothes

f5.He

has

played

(play)basketball

since

three6.Howlohas

Sang

(sing)yet?情态动词1.情态动词本身有一定的词义，表示说话人的情绪、态度或语气，但不能单独作谓语，只能与其他动词构成谓语。常

见

的

有

：can(could),may(might),must,need,2.情态

询0无d),称租数的变等后接动词原形。否定式是在情态动词后面加not。个别情态动词有过去式形式，可用来表达更加客气、委婉的语气。e.g.Ken

can

climbupthetresslike

a

koala.Tracycouldrideabicyclewhenshewas

fiveyears

old.Exercise1.我们不能在教室里吃东西。Wecan'teatin

theclassroom.2.首先你必须完成作业。Youmustfinishyourhomeworkfirst.3.他现在不可能在家。Hecan'tbe

at

home

now.4.她一定知道这个问题的答案。Shemustknowtheanswerto

thisquestion.JoeHave

you

akren

(take)partin

anenvironmentalhehged?Eric:dcensidhenedI

(help)withaClean-Up

Dayldadear.IhadsJoe:How

many

ptopkensider)tlakbiggast?clean-upprnijecthhiskcity(think)more

than

1c00people

(come)to

helpveut.

(have).

tryingJoe:That's

fantastic!I

guess

everyone

in

this

city

is

(try)to

waitimnranthnaniranmantFill

intheblankswiththe

correctformsoftheverbs

inbrackets.4amightPeoplenay/mightthinkthatbigistingaveto

bedoneto

savethe

earth.Many

forget

that

saving

tloeantualplginsdd/showithsmallthingsaveelectricitybyturningoff

the

ligbtild/heamychdedlde

a

room.You

also

use

reusablebags。k

。

nFill

inthe

blankswiththeappropriatemodalverbsfromthebox.Can

would

could

havetoshouldmust

may/4bI

think

it's

a

great

idea

that

ycharvevto

pay

for

plastic

bags

in

some

stores.And

insteadaofshiuildg

tosddool

or

work,you

can/could

ride

your

bikeAHtdallehinkdfhingou

adakeptlamBus.baoldechig/thinugldthat

_improvetheenvironment.Let'stakeactionnow!use

public

transportation

(n,交

通运输);turnoff

thelightswhenyouleavea

room;usereusablebagsinsteadof

plasticbags;rideyourbikeorwalktoschoolorwork;stop

usingpaper

napkins(n.餐

巾

纸

)

;recycle

books

andpaper

..Makea

listofthingsthat

peoplecan

dotohelptheenvironmentanddiscussyour

listwithyourpartner.4cIdisagree.It'sdifficult

forparentswithyoung

childrento

use

publictransportationI

think

thateveryone

shoulduse

publictransportation.DiscussionLanguGQQ1.

Wecan'taffordtowait

'anyIongertotakeaction!affordv.

承担得起；买得起；提供，给予

常

与can,be

ableto连

用affordsth.

买得起/承受得起某物afford

to

do

sth.有能力做某事/负担得起做某事e.g.Canyou

affordthemobile

phone?We

can't

affordtopay

sucha

price.afford&buyafford侧重“有经济能力买”

,

而buy则侧重“购买(这

一行为)

”。表示“我买不起……

”可以说I

can't

afford…,但不能说Ican't

buy

….根据句意，用afford或buy的适当形式填空。1)Theycanafford

tosendtheir

children

to

college.

afford2)Canybuy

a

new

car?3)Helen

somefruit

on

her

way

home2....save

electricity

by

turningoffthelights

when

youleave

a

room.turn

off

关

掉e.g.Please

turnthetelevisionoff

beforeyougo

to

bed.睡觉前请关掉电视。拓展：turn

相关短语turnon

打开，发动around

转

身turn

up

调高(音量)调低；拒绝turnturndown正确的时态或语态补全短文，使短文完整、通顺。The

clockwork

radio(发条式收音机)is

the

onlyr

adio

that

doesn't

need

batteries(

电

池

)or

electricity.It

is

powered

by

turning

the

handle(

手

柄

)for

aminute.Nowadays,thousandsof

theseradiosare

made(make)every

day.The

clockwors

indinted

(invent)in1991

by

TrevorBaylissyaaBlititaniingrttor.Trevor

hadtheideawhile

he(3)

(listento)some

news

on

theAfrica.It

(4)

(report)thatAfricansweredyingof

Aidsandtherewas

no

easywas

reportedwaytosendtheminformationabout

the

disease.ButnoonewouldhelpTrevor

develop

his

idea

fora

new

kind

of

radio.Finally,in

1993,his

inv