版权说明：本文档由用户提供并上传，收益归属内容提供方，若内容存在侵权，请进行举报或认领
文档简介
Unit
1
Ge
ne
Ed
it
ingPre
-Cla
s
sActivitie
sVie
w
ing
,Lis
te
ninga
ndS
pe
a
kingProje
ctCo
n
t
e
nt
sS
e
ct
io
n
On
eS
e
ct
io
n
Tw
oS
e
ct
io
n
Th
re
ePre
-Cla
s
s
Activitie
sS
e
ct
io
nOn
eVid
e
o
Clip
1Wha
t
do
you
know
a
b
out
the
tw
o
fe
m
a
le
s
cie
ntis
t
s
a
nd
the
ir
re
s
e
a
rch?Ta
s
k
1Vid
e
o
Clip
21
.Wha
t
q
ua
lit
ie
s
m
a
ke
a
p
rom
ine
nt
re
s
e
a
rche
r?2
.
Wha
t
ha
ve
you
le
a
rne
d
from
this
inte
rvie
w
?Ta
s
k
1Ta
s
k
2Aca
d
e
m
ic
a
ct
iv
it
ie
s
o
n
g
e
n
e
e
d
it
in
g
yo
u
w
ill
p
a
r
t
ic
ip
a
t
e
inWha
t
q
ue
s
t
ions
w
ould
you
a
s
k
if
you
ha
d
a
cha
nce
to
inte
rvie
w
a
p
rofe
s
s
or
ong
e
ne
e
d
it
ing
?Wha
t
w
ould
you
t
a
lk
a
b
o
ut
if
you
ha
d
a
cha
nce to
pa
rt
icipa
te
in
a
g
roupd
is
cus
s
ion
a
b
out
g
e
ne
e
d
it
ing
?If
you
w
e
re
invite
d
to
m
a
ke
a
p
re
s
e
nta
t
ion
in
a
s
e
m
ina
r
on
g
e
ne
e
d
it
ing
,
w
ha
tw
ould
b
e
your
the
s
is
a
nd
m
a
in
p
o
ints
?S
e
ct
io
nTw
oVie
w
ing
,
Lis
te
ning
a
nd
Spe
a
kingHis
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
Ig
e
ne
e
d
it
ing
/
g
e
nom
e
e
d
it
ing
;
GMO/
g
e
ne
t
ica
lly
m
odifie
d
org
a
nis
m
;
g
e
ne
;
DNA/
de
oxyrib
onucle
ica
cid
;RNA;
CRIS
PR-Ca
s
9___1
______2
______3
___Te
rmsDe
scriptionsg
e
ne
In
b
io
log
y,
it
is
a
s
e
g
m
e
nt
of
DNA
loca
te
d
o
n
chrom
os
om
e
s
tha
t
p
roduce
p
ro
te
in.
The
y
a
ls
o
e
xis
t
a
s
a
lle
le
s
of
w
hich
you
ne
e
d
tw
o
to
p
roduce
a
ce
rta
in
t
ra
it
inoffs
p
ring
.g
e
ne
e
d
it
ing
It
is
a
g
roup
of
te
chno
log
ie
s
tha
t
g
ive
s
cie
ntis
t
s
the
a
b
ilit
y
to cha
ng
e
a
norg
a
nis
m
’s
DNA.
The
s
e
te
chno
log
ie
s
a
llow
g
e
ne
t
ic
m
a
te
ria
l
to
b
e
a
dde
d
,
re
m
o
ve
d
,
o
r
a
lt
e
re
d
a
tpa
rt
icula
r
loca
t
ions
in
the
g
e
nom
e
.
It
m
e
a
ns
p
re
cis
e
ly
a
lt
e
ring
g
e
ne
t
ic
s
e
q
ue
nce
s
in
living
ce
lls
,
including tho
s
e
ofhum
a
ns
.CRIS
PR-Ca
s
9
It
is
a
ne
w
g
e
nom
e
e
d
it
ing
tool.
It
is
a
s
cis
s
ors
-like
che
m
ica
l
to
o
l
tha
t
ca
n
p
re
cis
e
ly
cut
a
nd
cus
tom
ize
s
t
re
tche
s
ofg
e
ne
t
ic
m
a
te
ria
l,
s
uch
a
s
hum
a
n
DNA.His
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
Ig
e
ne
e
d
it
ing
/
g
e
nom
e
e
d
it
ing
;
GMO/
g
e
ne
t
ica
lly
m
odifie
d
org
a
nis
m
;
g
e
ne
;
DNA/
de
oxyrib
onucle
ic
a
cid
;RNA;
CRIS
PR-Ca
s
9__4
____5
____6
__Te
rm
sDe
s
crip
t
io
n
sRNA
It
is
a
p
o
lym
e
ric
m
o
le
cule
m
a
de
up
of
one
o
r
m
ore
nucle
o
t
ide
s
.
Ea
ch
nucle
o
t
ide
is
m
a
de
up
of
a
b
a
s
e
(a
de
nine
,
cytos
ine
,
g
ua
nine
,
a
nd
ura
cil,
typ
ica
llya
b
b
re
via
te
d
a
s
A,
C,
G
a
nd
U),
a
rib
os
e
s
ug
a
r,
a
nd
a
p
hos
p
ha
te
.GMO
It
is
a
p
la
nt,
a
nim
a
l,
m
icroo
rg
a
nis
m
or
o
the
r
org
a
nis
m
s
w
ho
s
e
g
e
ne
t
ic
m
a
ke
up
ha
sb
e
e
n
m
odifie
d
in
a
la
b
ora
tory
us
ing
g
e
ne
t
ic
e
ng
ine
e
ring
or
t
ra
ns
g
e
nic
te
chnolog
y.
This
cre
a
te
s
com
b
ina
t
ions
of
p
la
nt,
a
nim
a
l,
b
a
cte
ria
l
a
nd
virus
g
e
ne
s
tha
t
do
notoccur
in
na
ture
or
throug
h
t
ra
d
it
iona
l
cros
s
b
re
e
d
ing
m
e
thods
.DNA
It
is
the
che
m
ica
l
a
t
the
ce
nte
r
of
the
ce
lls
of
living
thing
s
tha
t
co
ntrols
the
s
t
ructurea
nd
p
urp
os
e
of
e
a
ch
ce
ll
a
nd
ca
rrie
s
g
e
ne
t
ic
inform
a
t
ion
during
re
p
roduction.His
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
I1
.
Wha
t
im
p
orta
nt
e
ve
nts
in
g
e
ne
e
d
it
ing
his
tory
com
e
to
your
m
ind
w
he
n
you
s
e
ethe
a
b
ove
p
icture
s
?CRIS
PRd
is
co
v
e
r
y
o
f
t
h
e
Do
u
b
le
He
lix
t
h
e
Clo
n
in
g
o
f
Do
lly
t
h
e
S
h
e
e
p2
.
Ca
n
you
a
rra
ng
e
the
m
in
chronolog
ica
l
orde
r?B
-C-AHis
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
ITime
lineMe
thod
and
Te
chniqueDe
ta
ile
d
Informationse
le
ctive
breedingIt
canstreng
then
u_s_e
f1u_l_t_r_a_i_t_s
in
plantsandanimals,butnever
truly
understand
h_o2w
i_t
.
w
o
rke
ddiscovery
of
DNAInformation
is
encoded
in
the
s_t_r_u_3c_t_u_r_e_
of
the
molecule.Chang
e
the
_i_n_s
t
r_u4_c_t_io
n_s,
and
you
chang
e
the
being
carrying
it.in
the
1960
sbombarding
plants
withr_a_d_5ia
t
i_o
n_It
can
cause
random
mutations
in
the
g
enetic
codeSometimes
it
actually
works
too.in
the
1970
sinserting
DNA
snippets
to b
a6c_t_e_r_i_a,
plants
and
animalsScientists
do
this
for
search,
m
e
d
7ic
ine
,
ag
riculture
and
for
fun.in
1974birth
of
the
earlie
st
g
eneticallymodified
animal
M8ic
e
was
reg
arded
as
a
standard
tool
for
re
search,
savingmillions
of
live
s.His
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
ITime
lineMe
thod
and
Te
chniqueDe
ta
ile
d
Informationin
the
1980sthe
first
p
a9t
e
ntToda
y,
we
produce
many
c_h
e_m10ic
a_l_s
by
means
of
eng
ineered
life
,like
life
-
saving
clotting
factors,
g
rowth
hormones
and
insulin.in
1994the
first
food
modifiedin
the
labwent
on
sale
:
the
Flavr
Savr
tomatoIt
re
fe
rs
to
a
tomatog
iven
a
much
long
er
shelf-
life
via
anextra
g
enethat
suppresses
thebuild-
up
of
arotting
e
n
z1y1m
e
.in
the
1990shuman
eng
ineeringTo
tre
at
maternal
infe
rtility,
babies
were
made
that
carry
g
eneticinformation
from
t
h_1r2e
_e
humans,
making
them
the
firsthumans
ever
to
have
three
g_e_1n3e_t_i_c
parents.until
recentlyrevolutionary
new
technolog
yC_1R4I_S_PROvernig
ht,
thecostsof
eng
ineeringhave
s_h_r1u5n
k
by
99%.Instead
of
a
year,
it
takes
a
few
weeks
to
conduct
experiments.It
lite
rally
has
thepotential
to
chang
e
humanity
forever.His
t
o
r
y
o
f
Ge
n
e
Ed
it
in
gPa
r
t
IMa
ke
a
b
rie
f
re
vie
w
of
the
w
hole
proce
s
s
or
focus
on
one
or
s
e
ve
ra
l
s
ta
g
e
sof
the
his
tory
of
g
e
ne
e
d
it
ing
.
Ple
a
s
e
a
dd
s
om
e
e
xtra
inform
a
t
io
n
re
le
va
ntto
your
top
ic
if
p
os
s
ib
le
.Th
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
IICa
n
you
re
te
ll
the
w
orking
p
rincip
le
s
of
CRIS
PR
a
f
te
r
w
a
tching
thevide
o
clip
?Th
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
II1
.
The
CRIS
PR
m
e
thod
is
b
a
s
e
d
on
a
na
tura
l
s
ys
te
m
us
e
d
b
y
virus
to
p
ro
te
ct
the
m
from
infe
ctio
nb
y
b
a
cte
ria
.Re
vis
io
n:
The
CRIS
PR
m
e
thod
is
b
a
s
e
d
o
n
a
na
tura
l
s
ys
t
e
m
us
e
d
b
y
b
a
cte
ria
to
p
ro
t
e
ct
the
mfrom
infe
ct
ion
b
y
virus
.2
.
Whe
n
the
b
a
cte
rium
de
te
cts
the
p
re
s
e
nce
of
virus
DNA,
it
p
roduce
s
o
nly
one
typ
e
of
s
hortRNA
w
hich
conta
ins
a
s
e
q
ue
nce
tha
t
m
a
tche
s
tha
t
of
the
inva
d
ing
virus
.Re
vis
io
n:
Whe
n
the
b
a
cte
rium
de
te
cts
the
p
re
s
e
nce
o
f
virus
DNA,
it
p
ro
duce
s
tw
otyp
e
s
o
f
s
hortRNA,
one
o
f
w
hich
conta
ins
a
s
e
q
ue
nce
tha
t
m
a
tche
s
tha
t
o
f
the
inva
d
ing
virus
.FFTh
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
II3
.
Ca
s
9
is
a
nucle
a
s
e
,
a
typ
e
of
e
nzym
e
tha
t
ca
n
cut
DNA.
Whe
n
a
m
a
tching
s
e
q
ue
nce
,know
n
a
s
a
g
uide
RNA,
f
inds
it
s
t
a
rg
e
t
w
ith
in
the
vira
l
g
e
nom
e
,
the
g
uide
RNA
cuts
the
ta
rg
e
t
DNA
d
ire
ct
ly,
d
is
a
b
ling
the
virus
.Re
vis
ion：Ca
s
9
is
a
nucle
a
s
e
,
a
typ
e
o
f
e
nzym
e
tha
t
ca
n
cut
DNA.
Whe
n
a
m
a
tching
s
e
q
ue
nce
,
know
n
a
s
a
g
uide
RNA,
f
inds
it
s
ta
rg
e
t
w
ithin
the
vira
l
g
e
nom
e
,
the
Ca
s
9cuts
the
ta
rg
e
t
DNA,
d
is
a
b
ling
the
virus
.4
.
The
Ca
s
9
w
ill
unzip
the
DNA,
a
nd
m
a
tch
it
to
it
s
ta
rg
e
t
RNA.
If
the
m
a
tch
iscom
p
le
te
,
the
Ca
s
9
w
ill
us
e
tw
o
t
iny
m
o
le
cula
r
s
cis
s
ors
to
cut
the
DNA.TFTh
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
II5
.
Whe
n
the
cutting
ha
p
p
e
ns
,
the
ce
ll
t
rie
s
to
re
pa
ir
the
cut.
But
the
re
pa
ir
p
roce
s
s
is
e
rror-p
rone
,
le
a
d
ing
to
m
uta
t
io
ns
tha
t
ca
n
d
is
a
b
le
the
g
e
ne
,
a
llo
w
ing
re
s
e
a
rche
rs
to
unde
rs
ta
nd
it
s
function.6
.
Ge
ne
e
d
it
ing
ca
n
b
e
do
ne
in
culture
d
ce
lls
,
including
s
te
m
ce
lls
tha
t
ca
n
g
ive
ris
e
tom
a
ny
d
if
fe
re
nt
typ
e
s
,
how
e
ve
r,
it
ca
nnot
b
e
done
in
a
fe
rt
ilize
d
e
g
g
.TFRe
vis
io
n：Ge
ne
e
d
it
ing
ca
n
b
e
done
in
culture
d
ce
lls
,
including
s
t
e
m
ce
lls
tha
t
ca
n
g
ive
ris
eto
m
a
ny
d
if
fe
re
nt
typ
e
s
.
It
ca
n
a
ls
o
b
e
do
ne
in
a
fe
rt
ilize
d
e
g
g
,
a
llow
ing
the
cre
a
t
ion
o
ft
ra
ns
g
e
nic
a
nim
a
ls
w
ith
ta
rg
e
te
d
m
uta
t
ions
.Th
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
II7
.
Unlike
p
re
vious
m
e
thods
,
CRIS
PR
ca
n
b
e
us
e
d
to
ta
rg
e
t
m
a
ny
g
e
ne
s
a
t
once
.This
is
a
b
ig
a
dva
nta
g
e
for
s
tudying
com
p
le
x
hum
a
n
d
is
e
a
s
e
s
tha
t
a
re
ca
us
e
d
notb
y
a
s
ing
le
m
uta
t
ion
b
ut
b
y
m
a
ny
g
e
ne
s
a
cting
tog
e
the
r.8
.
Althoug
h
this
m
e
thod
is
b
e
ingim
p
rove
d
ra
p
id
ly,
it
s
a
p
p
lica
t
ion
is
q
uite
lim
ite
d
.TRe
vis
ion：This
m
e
thod
is
b
e
ing
im
p
rove
d
ra
p
id
ly,
a
nd
w
ill
ha
ve
m
a
ny
a
p
p
lica
t
ions
inb
a
s
ic
re
s
e
a
rch,
in
drug
de
ve
lop
m
e
nt,
in
a
g
riculture
,
a
nd
p
e
rha
p
s
e
ve
ntua
lly
for
t
re
a
t
inghum
a
n
p
a
t
ie
nts
w
ith
a
g
e
ne
t
ic
d
is
e
a
s
e
.FTh
e
Wo
rkin
g
Prin
cip
le
s
of
CRIS
PR-Ca
s
9Pa
r
t
IIRe
a
d
the
fo
llow
ing
pa
s
s
a
g
e
,
a
nd
s
um
m
a
rize
the
w
orking
princip
le
s
ofCRIS
PR-Ca
s
9
in
your
ow
n
w
ords
.Ad
va
n
t
a
g
e
s
a
n
d
Dis
a
d
va
n
t
a
g
e
s
o
f
CRIS
PR-Ca
s
9Pa
r
t
IIIPle
a
s
e
lis
t
the
a
dva
nta
g
e
s
a
nd
d
is
a
dva
nta
g
e
of
CRIS
PR-Ca
s
9
in
the
ta
b
leb
e
lo
w.Ad
v
a
n
t
a
g
e
sDis
a
d
va
n
t
a
g
e
sine
xp
e
ns
ivem
ore
e
f
fe
ct
ivem
ore
p
re
cis
e⋯off-ta
rg
e
t
e
f
fe
ctsthe
long
-te
rme
f
fe
ctsunce
rta
inty⋯Ad
va
n
t
a
g
e
s
a
n
d
Dis
a
d
va
n
t
a
g
e
s
o
f
CRIS
PR-Ca
s
9Pa
r
t
IIIRe
a
d
the
fo
llow
ing
te
xts
on
the
a
dva
nta
g
e
s
of
CRIS
PR-Ca
s
9
.
S
um
m
a
rizethe
m
a
in
p
o
ints
a
nd
the
s
up
p
orting
e
vide
nce
s
of
e
a
ch
te
xt.Te
x
tMain
pointsSupporting
de
ta
ils1234Ad
va
n
t
a
g
e
s
a
n
d
Dis
a
d
va
n
t
a
g
e
s
o
f
CRIS
PR-Ca
s
9Pa
r
tIIITe
x
tM
a
in
p
o
in
tS
u
p
p
o
r
t
in
g
d
e
t
a
ils1The
s
im
p
licity of
the
CRIS
PR–Ca
s
9s
ys
te
m
a
llo
w
s
re
s
e
a
rche
rs
a
nds
tude
nts
to
m
a
ke
p
re
cis
e
cha
ng
e
s
tog
e
no
m
e
s
.It
ca
n
b
e
us
e
d
to
p
re
cis
e
ly
re
p
lica
te
the
g
e
ne
t
ic
b
a
s
is
fo
r
hum
a
nd
is
e
a
s
e
s
in
m
o
d
e
l
o
rg
a
nis
m
s
.The
Ca
s
9
e
nzym
e
ca
n
a
ls
o
b
e
us
e
d
to
p
re
cis
e
ly
a
lt
e
r
e
p
ig
e
ne
t
ics
ig
na
ture
s
, p
ro
vid
ing
a
m
e
a
ns
to
m
a
nip
ula
te
the p
ro
d
ucts
oft
ra
ns
crip
t
io
n
w
itho
ut
cha
ng
ing
the
DNA
co
d
e
.2Ge
ne
e
d
it
ing
ca
n
p
re
ve
nt
d
is
e
a
s
e
o
rim
p
ro
ve
he
a
lth
.In
2
0
1
5
,
s
cie
ntis
t
s
s
ucce
s
s
fu
lly
us
e
d
s
o
m
a
t
ic
g
e
ne
the
ra
p
y
to
s
a
veLa
yla
's
life
.3Ge
ne
e
d
it
ing could
a
ls
o
p
o
te
ntia
llye
lim
ina
te
the
da
ng
e
rs
ca
us
e
d b
ya
lle
rg
e
ns
.Tha
t’s
b
e
ca
us
e
the
co
m
p
ounds
a
nds
ub
s
ta
nce
s
w
ith
in
foods
tuffsa
re
re
s
p
ons
ib
le
fo
r
a
lle
rg
ic
re
a
ctio
ns
ca
n
p
o
te
ntia
lly
b
e
e
lim
ina
te
dthro
ug
h
g
e
ne
e
d
it
ing
.A
re
s
e
a
rch
a
im
s
to
re
m
o
ve
a
ntig
e
ns
in
g
lu
te
n
f
ro
m
w
he
a
t
.4Pla
nt
he
a
lth
ca
n
a
ls
o
b
e im
p
ro
ve
dw
ith
g
e
ne
e
d
it
ing
.Ed
it
ing
p
la
nt
g
e
no
m
e
s
le
a
d
to
hig
he
r
yie
ld
s
a
nd
le
s
s
d
e
p
e
nd
e
nceo
n
ha
rm
fu
l
che
m
ica
l
inte
rve
ntio
ns
.Fo
r
e
xa
m
p
le
,
g
e
ne
t
ica
lly
e
nha
nce
d
ca
ca
o
t
re
e
s
w
ill
b
e
re
s
is
ta
nt
tothe d
is
e
a
s
e
a
nd fung
us
tha
t d
e
s
t
ro
ys
up
to
3
0 p
e
rce
nt of
thew
o
rld
w
ide
ca
ca
o
cro
p
b
e
fo
re
the
ir
p
o
ds
ca
n
b
e
ha
rve
s
te
d
.Et
h
ica
l
Is
s
u
e
o
n
Ge
n
e
Ed
it
in
gPa
r
t
IVWha
ta
re
the
p
os
s
ib
le
ris
ks
of
us
ing
CRIS
PR
g
e
ne
e
d
it
ing
on
e
m
b
ryos
?Et
h
ica
l
Is
s
u
e
o
n
Ge
n
e
Ed
it
in
gPa
r
t
IVWhich
s
ta
te
m
e
nt
is
corre
ct
a
b
out
the
curre
nt
s
itua
t
ion
of
g
e
ne
e
d
it
ing
?S
cie
ntis
t
s
fa
il
to
m
odify
the
g
e
ne
s
in
w
ild
a
nim
a
ls
a
nd
p
la
nts
.S
cie
ntis
t
s
m
odify
a
g
ricultura
l
p
la
nts
to
m
a
ke
the
m
m
ore
p
roductive
.The
s
e
m
odifie
d
g
e
ne
s
w
ould
not
continue
into
la
te
r
g
e
ne
ra
t
io
ns
.Which
is
incorre
ct
a
b
out
Ge
ne
m
odifica
t
ion’s
s
p
re
a
d?Ge
ne
m
odifica
t
ion
is
s
p
re
a
d
throug
h
re
p
roduction.The
s
p
re
a
d
of
cha
ng
e
d
g
e
ne
s
is
lim
ite
d
to
fa
rm
.Country’s
b
orde
rs
w
ill
not
lim
it
the
s
p
re
a
d
.Wha
t
is
the
p
os
s
ib
le
e
f
fe
ct
if
a
m
odifie
d
org
a
nis
m
m
a
te
s
w
ith
a
nothe
r
s
p
e
cie
s
?S
cie
ntis
t
s
know
how
the
m
odifie
dg
e
ne
s
w
ould
a
f
fe
ct
the
o
the
r
s
p
e
cie
s
.It
is
im
p
os
s
ib
le
tha
t
thos
e
g
e
ne
s
could
ha
rmthos
e
cre
a
ture
s
.It
is
p
os
s
ib
le
tha
t
this
ca
n
re
s
ult
in
s
p
e
cie
s
e
xtinction.BBCEt
h
ica
l
Is
s
u
e
o
n
Ge
n
e
Ed
it
in
gPa
r
t
IVWha
t
is
Je
nnife
r’s
s
ta
nce
conce
rning
“e
d
it
ing
hum
a
nity”?
It's
a
top
ic
tha
t
ne
e
dsca
re
ful
cons
ide
ra
t
ion
a
nd
d
is
cus
s
ion.Write
dow
n
the
w
ords
or
e
xp
re
s
s
ionsindica
t
ing
he
r
s
t
a
nce
.Exp
re
s
s
ions
indica
t
ing
s
ta
nce
m
a
y
include
:
a
g
lob
a
l
pa
us
e
ina
ny
clinica
l
a
p
p
lica
t
ion;
g
ive
us
t
im
e
to
re
a
lly
cons
ide
r
a
ll
ofthe
va
rio
us
im
p
lica
t
ions
;
ca
ll
fo
r
a
m
ora
torium
on
the
us
e
;cons
ide
r
ca
re
fully
b
oth
the
uninte
nde
d
cons
e
q
ue
nce
s
a
s
w
e
lla
s
the
inte
nde
d
im
pa
cts
of
a
s
cie
ntific
b
re
a
kthroug
h
.Et
h
ica
l
Is
s
u
e
o
n
Ge
n
e
Ed
it
in
gPa
r
t
IVDe
b
a
t
e
in
a
g
ro
u
p
o
f
f
o
u
r
o
n
t
h
e
g
iv
e
n
s
t
a
t
e
m
e
n
t
.It
is
a
g
o
o
d
t
re
n
d
t
o
h
a
v
e
g
e
n
e
-e
d
it
e
d
b
a
b
ie
s
in
t
h
e
f
u
t
u
re
.S
e
ct
io
nTh
re
eProjectPu
rp
o
s
e
o
f
y
o
u
r
p
re
s
e
n
t
a
t
io
nS
t
e
p
1Ce
n
t
ra
l
id
e
a
s
f
o
r
y
o
u
r
p
re
s
e
n
t
a
t
io
nS
t
e
p2t
h
a
tw
illb
e co
v
e
re
d
in
y
o
u
rWo
rk
in
g
ro
u
p
s
a
n
d
t
h
in
k
a
b
o
u
t
t
h
e
m
a
in
t
o
p
icsp
re
s
e
n
t
a
t
io
n
.
Th
e
f
o
llo
w
in
g
t
o
p
ics
a
re
f
o
r
y
o
u
r
re
f
e
re
n
ce
.
his
tory
of
g
e
ne
e
d
it
ing
a
dva
nta
g
e
s
of
the
curre
nt
te
chnolog
y
te
chnica
l
b
a
rrie
r
of
curre
nt
te
chnolog
y
a
p
p
lica
t
ion
of
g
e
ne
e
d
it
ing
e
thica
l
conce
rns
g
e
ne
-e
d
ite
d
b
a
b
ie
s
p
e
rm
is
s
ion
of
he
rit
a
b
le
hum
a
n
g
e
nom
e
e
d
it
ing
g
lob
a
l
m
ora
torium
on
he
rit
a
b
le
g
e
nom
ee
d
it
ing⋯S
t
ru
ct
u
re
o
f
y
o
u
r
p
re
s
e
n
t
a
t
io
nS
t
e
p
3Ou
t
lin
eIn
t
ro
d
u
ct
io
n
:
Intro
duce
your
to
p
ic
a
nd
us
e
a
n
e
f
fe
ctive
w
a
y
to
hold
thea
udie
nce
’s
a
t
te
ntion,
s
uch
a
s
q
ue
s
t
ions
,
q
uo
ta
t
ions
,
s
t
a
t
is
t
ics
,
ho
t
is
s
ue
s
,e
tc.
Yo
u
m
a
y
a
ls
o
g
ive
a
n
outline
of
the
m
a
in
p
o
ints
of
the
p
re
s
e
nta
t
ion.B
o
d
y
:
Sta
te
your
m
a
in
p
o
ints
w
ith
s
up
p
orting
de
t
a
ils
,
us
ing
e
xa
m
p
le
s
,s
ta
t
is
t
ics
or
o
the
r
concre
te
m
a
te
ria
ls
.Co
n
c
lu
s
io
n
:
Re
s
ta
te
the
ce
ntra
l
ide
a
.Us
in
g
s
ig
n
p
o
s
t
s
t
o
m
a
ke
y
o
u
r
s
p
e
e
ch
co
h
e
re
n
tS
t
e
p
4In
t
ro
d
u
c
in
g
t
o
p
ic煉To
da
y,I
a
m
g
o
ing
tota
lk
a
b
out⋯煉The
top
ic
of
m
y
p
re
s
e
nta
t
ion
is⋯煉To
da
y,I
w
ill
focus
on⋯Pre
s
e
n
t
in
g
a
n
u
m
b
e
r
o
f
m
a
in
p
o
in
t
s煉My
f
irs
t
p
o
int
is⋯/Firs
t
of
a
ll,⋯/To
b
e
g
in
w
ith,⋯煉Moving
on
to
our
s
e
cond
p
o
int,⋯/S
e
cond,⋯/In
a
ddition,⋯/Ne
xt,⋯煉And
f
ina
lly,our
la
s
t
p
o
int
is⋯/La
s
t
b
ut
not
le
a
s
t,⋯
Co
n
c
lu
s
io
n
s煉In
s
hort,⋯煉All
in
a
ll,⋯煉To
s
um
up,⋯煉To
conclude,⋯De
liv
e
r
y
of
yo
u
r
p
re
s
e
n
t
a
t
io
nS
t
e
p
5DOsMa
ke
e
ye
conta
ct
w
ith
your
a
udie
nceBe
conve
rs
a
t
iona
lS
how
your
e
nthus
ia
s
m
a
nd
s
ince
rityUs
e
g
e
s
turea
nd
m
ove
m
e
nt
na
tura
llyS
p
e
a
k
w
ith
a
p
p
rop
ria
te
loudne
s
s
a
nd
s
p
e
e
dUs
e
voca
l
va
rie
ty
including
tone
,
intona
t
ion,
s
p
e
e
d
,
e
tc.DON’TsMe
re
ly
re
a
d
your
p
re
s
e
nta
t
ionMa
ke
s
p
e
lling
a
nd
p
ronuncia
t
ion
m
is
t
a
ke
sBe
too
ne
rvousUs
e
too
m
a
ny
e
xp
re
s
s
ions
like
um
s
,
like
,
OK,
a
nd
you
knowTHANK
YOU!Unit
2
Urb
a
n
Ag
r
icu
lt
u
rePre
-Cla
s
sActivitie
sVie
w
ing
,Lis
te
ninga
ndS
pe
a
kingProje
ctCo
n
t
e
nt
sS
e
ct
io
n
On
eS
e
ct
io
n
Tw
oS
e
ct
io
n
Th
re
ePre
-Cla
s
s
Activitie
sS
e
ct
io
nOn
eVid
e
o
Clip
1How
doe
s
the
s
up
e
rm
a
rke
t
m
a
ke
s
ure
it
p
roduce
s
s
us
ta
ina
b
le
fruit
a
ndve
g
e
t
a
b
le
s
?Ta
s
k
1Vid
e
o
Clip
11
.
Write
dow
n
tw
o
q
ue
s
t
ions
a
b
out
the
rooftop
g
a
rde
n
m
a
rke
t
.Ta
s
k
2Vid
e
o
Clip
2Wa
y
s
t
o(1)
Yo
ui
f
y
o
u h
a
v
e
t
h
e
s
a
me
id
e
a o
r
i
f
y
o
uin
s
u
ppo
r
t o
fa
g
ree
w
it
h
t
h
e
s
pea
k
er
.E.g
.
I
w
o
u
l
d
l
ik
e
t
o
pr
es
en
ty
o
u
r
id
ea
.y
o
u h
a
v
e
t
h
e(2
)
Yo
u
c
a
n
s
a
y
s
o
met
h
in
g
fro
m
ifs
a
me
id
ea
o
r
if
y
o
u
a
g
r
ee
w
it
h
t
h
e
s
pea
k
er
.E.g
.
Th
er
e
is
n
o
d
o
u
bt
t
h
a
t
y
o
u
h
a
v
e
g
o
t
s
o
me
ex
c
e
l
l
en
t
d
a
t
a
.a
s
k
q
u
es
t
io
n
sc
aandd
_s_o_m_e_t_h_i_n_g_mo_r_ea
d
d
it
io
n
a
l
in
f
温馨提示
- 1. 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2024-2029年红外线温度计行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2024-2029年糖醇行业市场现状供需分析及市场深度研究发展前景及规划投资研究报告
- 2024-2029年立式打包机行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2024-2029年租车管理软件行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2024-2029年硼硅酸盐管行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2024-2029年短期标签行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2024-2029年皮肤准分子激光器行业市场现状供需分析及重点企业投资评估规划分析研究报告
- 2022年安徽省宁国市宁阳校中考联考化学试题含解析
- 2022届广东省广州市从化区中考化学对点突破模拟试卷含解析
- 北京一零一中学2022年十校联考最后化学试题含解析
- 开展电力登杆培训课件
- 新质生产力在人力资源管理中的应用
- 奇妙的激光(小学生科普)
- GB/T 13912-2020金属覆盖层钢铁制件热浸镀锌层技术要求及试验方法
- 小学四年级心理健康测试题模板(6套)
- 介入导管室护理质控标准(全文)
- 《小英雄雨来》(完美版)PPT课件
- 小学生必背古诗75首(打印版)
- 防雷器检验报告
- 保险中介行业财务风险及防范措施思考
- 射孔.ppt
评论
0/150
提交评论