高一英语外研版-必修一Moudle 5 a lesson in a lab Reading --passage A +B课件(22张ppt）

(共22张PPT)
Module
5
A
lesson
in
a
Lab
Do
a
chemical
experiment
lab
test
tube
试
管
实
验
室
天平
balance
test
tube
holder
Revision
1.substance
2.oxygen
3.electricity
4.electrical
5.aim
6.conclusion
7.react
v.
---n.
8.equipment
9.boil
10.ordinary
11.rust
12.liquid
When
the
iron
is
heated(加热）
it
will
When
the
iron
is
cooled(遇冷）
it
will
expand
contract
How
much
do
you
know
about
general
science?
When
a
metal
is
heated,
it
_________
(becomes
larger
).
When
it
cools,
it
_________
(becomes
smaller
).
liquid
substance
oxygen
electricity
mixture
oxide
rust
aim
conclusion
stage
expand
contract
boil
react
equipment
balance
ordinary
partial
expands
contracts
Study
the
table
and
try
to
find
out
how
to
read
fractions.
we
write
we
read
1
1/2
2
1/3
3
2/3
4
1/4
5
3/4
6
1/6
7
8/11
one-third
two
-thirds
one-sixth
eight-elevenths
a
half/
one-second
a
quarter/
one-fourth
threequarters/threefourths
Work
in
groups
to
find
out
how
to
read
decimals.
0.1
18.27
　
3.798
　
0.378
　
(zero)
point
one
eighteen
point
two
seven
three
point
seven
nine
eight
(zero)
pointthreeseveneight
How
much
money
do
you
have
?
1,000,000,000
billion
10亿
million
百万
thousand
千
Can
you
read
them?
100
百
128
1,000
千
10,000
万
100,000
　
1,000,000　
　
10,000,000
　
100,000,000
亿
1,000,000,000
　
a/one
hundred
a/one
billion
a/onehundredmillion
ten
million
a/one
million
a
hundred
thousand
ten
thousand
a/one
thousand
one
hundred
and
twenty-eight
six
million
eight
hundred
and
sixty-five
thousand
two
billion
six
hundred
and
seventy-four
million,
and
fifty-seven
thousand
6,865,000
2,674,057,000
4.
Decimals
Fractions
Decimals
We
say
1/2
2
1/4
3/4
30
1/2
12
3/10
12.3
30.5
0.75
2.25
0.5
point
five
(
zero
point
five)
two
point
two
five
point
seven
five
thirty
point
five
twelve
point
three
Listen
to
the
tape
carefully
and
choose
the
best
title
for
it.
The
Different
Uses
of
Metals
The
Reaction
of
Metals
The
Reaction
of
Metals
with
Oxygen
Passage
A
Read
passage
A
carefully
and
answer:
1.
What
happens
when
you
heat
calcium
in
oxygen?
2.
Which
metals
react
with
steam?
3.
Does
copper
react
with
water?
It
burns
to
form
an
oxide.
Magnesium,
aluminium
and
zinc.
No,
it
doesn’t.
Passage
B
When
we
do
an
experiment,
we
should
first
of
all
have
an
_____.
We
should
use
proper(合适的
)
_________.
We
should
find
out
the
_______and
get
an
____________.
Put
these
words
in
the
correct
order
to
describe
the
stages
of
a
chemical
experiment.
conclusion
aim
result
method
aim
methods
result
conclusion
Some
important
words
about
the
experiment:
apparatus
(仪器,设备)
cotton
wool
棉絮
bunsen
burner本生灯（煤气喷灯）
Read
passage
B
quickly
and
fill
in
the
table.
Iron
in
dry
air
Iron
in
air-free
water
Iron
in
ordinary
water
Stage
A
(Starting
experiment)
Stage
B
(1
week
later)
Stage
C
(Result
)
____________
______________
______________
---
nails
---
nails
---
nails
---
nails
---
nails
---
nails
______
______
______
______
______
______
______
______
cotton
wool
cotton
wool
Iron
doesn’t
rust
Oil
layer
water
Oil
layer
water
Iron
doesn’t
rust
water
water
Iron
rusts
Underline
the
key
words
and
expressions:
think
of
electrical
equipment
1.
想出
2.电器设备
3.与…起化学反应
4.按…顺序排列
5.在顶部
6.在底部
7.确保/
核实…
8.往…中加入
9.防止…进入…
react
with
put…in
order
at
the
top
at
the
bottom
make
sure
that/
of…
add…to…
keep
…out
of…
Sentence
structure:
1.
It
is
hard
to
think
of
a
world
without
metals.
很难想象一个没有金属的世界.
It
is
a
good
habit
to
get
up
early
in
the
morning.
Eg:早上早起是个好习惯.
Eg:学好英语是不容易的.
It
is
not
easy
to
learn
English
well.
句型中，真正的主语是to
do
sth
,
it
作形式主语.
It
is
adj
/n.
to
do
sth
做什么事怎么样
2.
Leave放置，使….处于…状态，让
1.Leave
the
girl
where
she
is.
2.Who
left
the
door
_____________
(开/关)?
3.
Who
left
the
lights
_____
(亮着)?
4.Just
leave
the
engine
_________(run).
3.add
The
news
added
to
his
anxiety.
2.
Add
five
to
ninety-five,
and
you
get
a
hundred.
3.
The
number
of
the
students
in
our
class
adds
up
to
no
more
than
51.
Translation
下表中的金属名称按反应强度大小由上到下依次排列.
金属与这些物质的反应可按顺序排列.
1.
It
is
clever
of
him
to
think
of
this
idea.
2.
It
is
useless
for
you
to
do
this.
他想到这个办法,真是太聪明了.
你这样做是没用的.
4.
The
reaction
of
metals
with
these
substances
can
be
put
in
order.
5.
Here
is
a
table
with
the
metals
that
react
most
at
the
top,
and
the
metals
react
least
at
the
bottom.
我将核实一下车是锁上的.
3.
I’ll
make
sure
that
the
car
is
locked.