Unit4TheEarthProject课件沪教版七年级英语上册

KeyquestionWhyshouldwelearnabout

the

Earth?Unit

4The

EarthMakeafactfileabout

Earth

protectionYou

are

going

to

write

a

fact

file

about

a

place

that

faced,or

isstillfacing,environmentalproblems.Whatis

a

fact

file?A

factfile

is

a

knowledge

database

or

reference

tovarious

facts.ĚProject*Checkingyour

progressWhat

is

a

fact

file?√It

is

a

short

report

containing

all

the

mostimportantinformationon

one

subject.√This

subject

can

be

a

thing,a

place,oreven

a

person.√

It

includes

accurate

information,differentsections,a

large,clear

title,and

somepictures.Afactfile

includes:1.A

title2.Some

subheadings3.Attractive

picturesGroupdiscussionChoose

one

place

that

interests

you.Search

online

for

its

basic

information.Discuss

what

to

include

in

your

fact

file.the

Maowusu

Desert①

Zhanjiang

Mangrove

National

NatureReserve②Qiandao

Lake³Saihanbais

aforest

park

inthe

north

of

Hebel.It

is

about

400kmfromBeijing.Forhundredsofyears,theemperorswent

there

tohunt.Butin

the1800s,thingsbegantochangeThere

wereforestfires

and

wars,andpeople

cut

down

many

trees

Saihanbaslowly

turmed

into

adesert.When

theforest

disappeared,there

were

terrible

sandstorms

inthe

Beijing

area

In

the

early

1960s

a

groupof

sxlentists

travelledtoSaihanba

to

findasolution.Theyfoundanold

treeinthemiddleof

the

desert"Maybe

we

can

still

plant

treeshere"they

thought

In1962,the

first

tree

planters

arrivedin

Saihanba.The

coldand

dryweathermadethelrwork

verydifficult,andstrongwindsblewawaymany

young

tres.In

winte,tgotas

cold

as-40℃

.Threegenerationsofforestworkerscontinued

the

hard

work

Thanks

tothem,Saihanba

is

green

again.Itistodaythe

world's

biggest

man-madeforest

There

are

hundredsof

milionsoftreesthereTheforesthelpsprovide

the

capital

withdean

water,andtherearefewersandstorms

intheBeljing

areanowReview

and

learnSaihanba:turningdesertintoforestWhat

informationfromthearticleon

page62canwe

useina

fact

file?Para.1:

The

history

of

SaihanbaWhy

did

it

become

a

desert?How

did

people

try

to

solvePara.2:

theproblem,and

what

werethe

challenges?Para.3:

What

did

they

achieve

in

theend?What

other

aspects

of

Saihanba

are

mentioned?Getreadyforthe

contentWhatcanyouincludeinyourfact

file?currentsituationproblemscauseslocationplace/

areasolutionsachievementsthefuturecurrentsituationproblemscausesWriting

skills:Topicsentence

&supportingdetailsGetreadyforthestructureTurnaspidergram

intoafactfilesubheadingslocationproblemscurrentsituationcausessolutionsachievementlocationplace/

areasolutionsachievementsthefutureInformation

about

aplacethe

futureGet

ready

for

the

language

Review

and

learn location

..isa...inthe...of...;…islocatedin...

problems

Thingsbegantochangeslowlyturnedinto...

current

…lost

.

…

,...disappearedInformation

situation

about

...to

find

a

solution.They

found...

achievement

…green

again.It

is

today

...There

are..

.helps

provide...

thefuture

It

is

important

for

us

to..

Saihanba

causeS

In

the

past,there

were

...,and

people

cut

down...damaged...

solutions

.arrivedin

Saihanbacontinued

thehard

work.What

kindofarticleis

a

fact

file?Writingstyle(体裁):□Narration(记叙文):

todescribe

or

record

an

eventVExposition

(说明文):to

describeor

explain

an

idea

or

something□Argumentation(议论文):to

argue,reason,or

discuss

tosupportan

idea.Getreadyforthe

methodsSaihanba:turningdesertintoforestSaihanbais

aforest

park

inthe

northofHebeLtis

about400kmfromBejing

forhundreds

ofyears,theemperors

went

there

to

hunt.But

in

the

1800s,things

begantochange

There

wereforest

firesandwars,andpeoplecutdown

manytrees

Saihanba

slowly

tumed

into

adesert.Whentheforestdisappeared,therewereteriblesandstorms

inthe

Beiling

area

In

the

early

1960s

a

groupof

scientists

travelledtoSaihanba

tofinda

solut

ion.Theyfoundanold

tree

in

the

middle

of

the

desert"Maybe

we

canstill

plant

treeshere"they

thoughtIn

1962,the

first

tree

planters

arrivedin

Salhanba.The

cokdand

dryweathermadethelrworkverydificult,andstrongwindsblew

awaymany

young

trees.In

winte,tgotas

cold

as-40°℃

.ThreegenerationsofforestworkerscontinuedthehardworkThanks

tothem,Salhanba

ks

greenagain.Itistoday

theword's

biggest

man-madeforestTherearehundredsof

millionsoftreesthereTheforesthelpsprovide

the

capitalwith

dean

water,and

there

are

fewer

sandstorms

in

theBeljing

areanow.1.Definition(下定义)/Introduction2.List

out

figures(列数字)3.Comparison

(作比较)Review

and

learnDescription

methods

in

Exposition(说明文):Tip:Forafactfile,you

also

need

to

usesubheadingsforClassification(分类别).How

to

make

a

fact

file?Step

1:

Decide

how

many

facts

you

wanttowriteand

list

them.Step2:Give

details

about

eachfact.Step3:

Makefullsentenceswiththedetailedinformation.Step4:

Combineallthe

sentencesinto

acomplete

fact

file.Step5:

Add

pictures

if

necessary.Makeyourownfactfile

about

Earthprotectionand

presentit

to

the

class.Che