Unit 5 Understanding ideas The Monarch's Journey 课件【高效课堂+备课精研】高中英语外研版（2019）必修第一册

Guess:Whataretheydoing?v.迁徙MigrateTheMonarch'sJourney阳谷一中1.Tounderstandthewholepassageandgetthemain

idea.2.To

retell

(复述)the

general

idea

of

the

passage.LearningAims3.Toraiseawarenessofprotectinganimalsandenvironment.Readthepassagequicklyandmatch

tectPara.1Para.4Para.2-3C.Definition

(定义)about

migrationMeasuresFast

readingPara.5.tobutterflymonarchB.Monarch'stroubleandcausesTips

:Don’treadwordbyword!

Just

read

the

first

and

lastsentenceofeachparagraph.D.IntroducemigrationMonach'sAPage

/5tofindfoodtoseekpartnerin

searchofwarmer

weatherOneofthemostwonderfulmigrationsinnatureisthatofthe

NorthAmericanmonarchbutterfly.1.What'sthemigration?2.Whydotheanimalsmigrate?Manyanimalsmovefromoneplacetoanotheratcertaintimesoftheyear.Thisannualmovementiscalledmigration.许多动物在一年中的特定时间会从一个地方迁往另一个地方。这种一年一度的迁移被称作迁徙。writing

Tips:Trytousedifferentwords

toexpressthesamemeaning.

Itcanimprovethelevelofyour

article.Read

Para.1

carefullyandanswerthefollowingquestions.writing

Tips:Lead

to

the

following

.Careful

readingReadPara.2andanswerthequestions.when?where?howlong?4000

kilometresAlonganddifficult

journfind

their

way

to

CaliforniaorMexicoeveryautumneyEveryautumn,millionsofthesebeautifulinsectswithfineblackandorangewings

begin

a

long

and

dvi.设f法f做i某c

lt

journey.

Somehowtheymanagetotravelaround

来到某处，

进入4,000kilometressouthandfindtheirwayto

California

orMexico.However,untilrecentlynooneknewhowthey

did

this.Sohowdidtheymagrate?Para3.Howdidtheymigrate?v.

分辨By_

_____

_

_

_

_

_

_

_

_

_

_

_

_

_

____Theways:By

___________________________Activity

Read

Para.3again

and

fill

in

blanks

to

complete4the

“cause-effect”flow

chart(因果流程图)

.•a.The

monarch

butterfly

is

abletotell__d_a_y_____.•b.Using

these

two

pieces

of

information,themonarchbutterflydetermines_w

_t

_g_o____.

•c.Themonarchbutterflymeasures__t_h

_p_o

withitseyes.•d.Themonarchbutterfly

reaches__t_h_e_p_l_a

e_n_d_t_h_e_w_i_n_t.a/cc/a

b

dFor

the

butterflies,what

caused

them

to

migrate?human

activitycut

down

treesPara4.

thereasonsdestroy

the

naturalenvironmentuse

chemicalse.

Humans

_

trees.f.Thenu_r_a_l_n_m_e_n_t__m_a_n_y_p_l_a_c_e_swheremonarchscanbefoundisdestroyed.g.Humansusechemicalsthatk_i_l_l_h_e_sthatmonarch

caterpillars

eat.h.Themonarchbutterfly’spopulat

ns

___in

the

last

few

years.Activity

Read

Para.4and

fill

in

blanks

to

complete

the4

“cause-effect”flow

chart(因果流程图).fhe/gg/ehMeasures

to

protect

monarch

butterflyEnsureenoughfoodRecord

its

migration....MeasuresPara.5SignificanceThe

more

_

____,

re

it

will

survive

and

keep

its

place

the

greate

n_g_t_i

o.meeeeeccrrcchhaannaattuu我们对这种美丽生物了解越多，它存活的机会就越大，它们在自然界中得以长久生存并保持其位置的可能性就越大。Whydowemakethereserch?

Is

it

useful?tell

?Para5.Choosewhereyouaremostlikelytofindthepassage..1.Inascientificresearchpaperaboutthe

monarchbutterfly's

migration.2.Inapopularnaturemagazineintroducing

themonarch

butterfly.3.In

a

travel

leaflet

(传单)encouraging

people

to

viNorthAmerica.

Post-readingMany

animals

move

from

one

place

to

another

atcertaintimes

of

the

year.This

annual

movement

is

calledmigration.People

have

been

working

together

to

record

theirmigration

and

make

sure

that

there

are

enough

plants

forrthem

to

feed

on.way

it

needs

to

go

and

change

its

direction

whennecessary.Every

autumn,they

begin

a

long

and

difficult

journey.Thmonarch

is

able

to

tell

the

time

of

day,and

use

its

eyesmeasure

the

position

of

the

sun.So,it

can

determine

whBut

people

are

destroying

the

natural

environment

bycutting

down

trees

and

using

chemicals

that

kill

the

plathat

monarch

caterpillars

eat.measuresintroductiondefinitionreasonspla.ThEvery

autumn,they

begin

a

long

and

difficult

journey.Thmonarch

is

able

to

tell

the

time

of

day,and

use

its

eyesmeasure

the

position

of

the

sun.So,it

can

determine

wh.Thwhway

it

needs

to

go

and

change

its

direction

whennecessary.But

people

are

destroying

the

natural

environment

bycut

down

trees

and

using

chemicals

that

kill

the

plantsmonarch

caterpillars

eat.definitionintroductionreasonsmeasuresManyanimalsmovefroommoonneeppllaaccee

ttoo

aannootthheer

a