Unit 6 When was it invented？单元学案（4课时）

Unit
6
When
was
it
invented？学案
（第1课时）
【学习目标】
1.知识和技能目标：1）谈论重要发明的发明时间，发明者和用途。
2)
了解薯条、茶和篮球的发明历史。
2.过程与方法目标：1）能运用所学知识练习被动语态的句式。
2）能用所学句型进行交际练习。
3.情感、态度和价值观目标：充满想象力，善于观察事物，面对难题，用积极的态度解决，发挥创造能力，认识世界，改变世界。
【自主梳理】1.
要求学生翻开课本P41，迅速阅读1a部分的内容。
并按要求完成课本上相应的任务:
Number
the
pictures.
2.
检查答案，先要求全班一起给出答案并检查讨论。
【重点领悟】教学when
was
the
car
invented?
It
was
invented
in…
【探究提升】初中被动语态语法讲解
(一)
语
态
分
类
英语动词有两种语态.，主动语态和被动语态。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。如：
They
will
build
a
new
bridge
over
the
river.
(主动)
A
new
bridge
will
be
built
over
the
river.
(被动)
汉语中常用“被”、“给”、“由”、“受”等词用来表示被动，而英语用：
助动词be
+
及物动词的过去分词构成。
(二)
被动语态的时态、人称和数的变化主要体现在be的变化上，其形式与系动词be的变化形式完全一样。
一般现在时：am
/
is
/
are
+
done
一般过去时：was
/
were
+
done
一般将来时：shall
/
will
+
be
done
一般过去将来时：should
/
would
+
be
done
现在进行时：am
/
is
/
are
+
being
+
done
过去进行时：was
/
were
+
being
+
done
现在完成时：have
/
has
+
been
+
done
过去完成时：had
+
been
+
done
将来完成时：shall
/
will
+
have
been
+
done
过去将来完成时：should
/
would
+
have
been
+
done
［注］被动语态没有将来进行时和过去将来进行时。
【学法引领】完成一个任务：
　　?
ask
some
students
to
read
about
an
invention
using
an
encyclopedia
or
other
book?from
the
library，or
by
looking
up
information
on
the
internet．have
the
students
write
up?a
short
report
and
draw
a
simple
picture
of
the
invention
or
bring
in
a
photo
of
it．ask
each?students
to
show
the
picture
and
read
his
or
her
report
to
the
class.　　说明：通过完成一个任务．让学生运用所学内容，既巩固了本课所学的语言目标，又开拓了学生的思维，使学生的思维跳出了课本，培养学生在实际生活中运用本课所学内容，来解决现实生活中的实际问题的能力，真正达到了新课标提出的培养学生综合运用语言的能力。
【巩固训练】
1.用所给单词的正确形式填空：
1)When
was
the
telephone
_____
(invent)?
2)The
computer
can
____
us
do
math
problems
(help).
3)In
those
day,
the
woman
couldn't
____(afford)a
TV
because
they
were
really
expensive.
4)A
friend
of
____
(I)
came
to
see
me
last
week.
5)I
think
you
need
to
___
(take)
a
history
class.
The
keys:1)
invented;
2)
help;
3)
afford;
4)
mine;
5)take.
2．回答问题。
(1)When
was
the
telephone
invented?______________________________
(2)What
is
the
car
used
for?
____________________________________
(3)What
is
the
light
used
for?
____________________________________
(4)What
is
heated
ice
cream
scoop
used
for?_____________________________
The
keys
:(1)It
was
invented
in
1876.
(2)It
is
used
for
traveling.
(3)
It
is
used
for
seeing
in
the
dark.
(4)It
is
used
for
serving
really
cold
ice
cream.
【学习反思】本课主要话题是谈论重要发明的发明时间、发明者及用途。主要练习被动语态的句式用法。通过课前预习，可以增强课堂教学效果。
Unit
6
When
was
it
invented？（第2课时）
【学习目标】
1.知识和技能目标：After
learning
the
text,
require
the
students
to
master
the
phrases
below:
(通过学习，掌握下列词语)
invent,
popular
drink,
by
accident,
not…until,
discover,
according
to,
Chinese
legend,
boil,
an
open
fire,
fall
(fell)
into,
remain(ed),
notice(d),
produce(d),
in
this
way
2.过程与方法目标：1.Practice
the
students’
listening
ability.
(听力训练)
2.
Ask
the
students
to
understand
the
passage
very
well
and
answer
some
questions
according
to
the
passage.
(能够正确理解本文含义，回答相关问题。)
3.
Useful
phrases
for
the
students
to
retell
the
new
text.
(利用关键词语，能够复述课文大意。)
3.情感、态度和价值观目标Train
the
students
to
use
their
heads
and
make
some
inventions
in
life.(开动脑筋，培养发明创造能力.)
【自主梳理】1.
要求学生翻开课本P43，迅速阅读3a部分的内容。
并按要求完成课本上相应的任务:2.
检查答案，先要求全班一起给出答案并检查讨论。work
in
groups
and
solve
problems
together
【重点领悟】教学When
was
the
tea
invented?
It
was
invented
in
…
.
【探究提升】I
质疑探究：质疑解疑、合作探究
教学建议：探究点中pleasant是学生学习难点，请老师要给予适当点播
学习建议：分析所给例句，根据提示总结重难点单词、语法、及句型用法
探究点一语篇探究
教学建议：教师给学生留出3----5分钟时间，读3a
，再根据文章内容，排序。
1．The
emperor
tasted
the
hot
mixture．
2．Some
leaves
in
the
water
from
the
nearby
bus
fell
into
the
water
and
remained
there
for
some
time．
3．The
leaves
in
the
water
produced
a
pleasant
smell．
4．Shen
Nong
was
boiling
some
water
over
an
open
fire．
正确顺序：————————————————————
探究点二单词和短语探究
1．pleasant
adj．合意的；令人愉快的；讨人喜欢的
(1)The
emperor
noticed
that
the
leaves
in
the
water
produced
a
pleasant
smell．这位皇帝注意到水中的叶子发出一种怡人的气味。
(2)It
is
pleasant
for
me
to
see
you．看到你我真高兴。
(3)The
chemistry
teacher
is
pleased
with
my
grades．化学老师对我的成绩很满意。
思考：
(1)pleasant意为___________
，反义词是_____________
(2)pleased，pleasant与please有什么区别?pleased是______词，
意为“__________________________”，在句中常用作表语，常构成短_____________________________(对某人)满意。
pleasant也是________词，表示“___________-”，形容事物本身的性质，一般用作______语，如主语是
物，也可以用作_______语。
2．by
accident
Did
you
know
that
tea，the
most
popular
drink
in
the
world(after
water)，was
invented
by
accident?
你知道茶这种世界上最受欢迎的饮料(在水之后)是偶然被发明的吗?
思考：by
accident意为：
_____________
，同义词组是______________
3．discover
v.发现(出乎意料地)；发觉
(1)Cook
discovered
Hawaii
on
a
hot
day．库克在一个大热天发现了夏威夷。
(2)A
4-year-old
girl
invented
a
new
kind
of
toy
．一个4岁的女孩发明了一种新玩具。
(3)Please
find
out
who
broke
my
window．请查明谁打破了我的窗户。
【学法引领】完成一个任务：
　　?
ask
some
students
to
read
the
article
and
answer
the
questions.　
Who
invented
tea?
1.
What
is
this
article
about?
It’s
about
how
tea
was
invented.
2.
When
was
it
invented?
It
was
invented
over
3,000
years
ago.
3.
Who
was
it
invented
by?
It
was
invented
by
the
emperor
Shen
Nong.
4.
How
was
it
invented?
It
was
invented
by
accident.
说明：通过完成一个任务．让学生运用所学内容，既巩固了本课所学的语言目标，又开拓了学生的思维，使学生的思维跳出了课本，培养学生在实际生活中运用本课所学内容，来解决现实生活中的实际问题的能力，真正达到了新课标提出的培养学生综合运用语言的能力。
【巩固训练】
Find
out
the
following
points:
1.although用法简析
虽然
…但是；可用though
替换；不与but
同时出现
.用although/though
或bu
t填空
eg:Although
he
is
very
old,
he
still
works
hard.
2.over在本文中的2种解释①.over
=more
than
超过，多于eg:
over/more
than
100
years
100多年前.
②在
…（正）上方
eg：a
bridge
over
the
river
河上的一座桥
3
three
thousand
years
,
前有确切数字，用原形；thousands
of数字不确切，词尾加s,与of
连用。
拓展：hundred,
million
.
4.被动语态的使用（找出本文含有被动语态的句子，3个）①Tea
was
invented
by
accident.②Tea
wasn’t
brought
to
the
western
world.
③
beverage
was
discovered
over
3000
years.
5.回顾：主动语态变被动语态规则一二三。
一断：判断时态
二析：分析是否主谓宾
三变化：宾变主，主变（by的）宾，
谓语变为be+过分
(1)It
is
used
for
traveling.
(2)
It
is
used
for
seeing
in
the
dark.
(3)It
is
used
for
serving
really
cold
ice
cream.
【学习反思】本课主要话题是谈论茶发明的发明历史。主要练习被动语态的句式用法。通过课前预习，可以增强课堂教学效果。
Unit
6
When
was
it
invented？（第3课时）
【学习目标】
1.知识和技能目标：
1）谈论重要发明的发明时间，发明者和用途。
2)
了解薯条、茶和篮球的发明历史。
2.过程与方法目标：
1）能运用所学知识练习被动语态的句式。
2）能用所学句型进行交际练习。
3.情感、态度和价值观目标：
充满想象力，善于观察事物，面对难题，用积极的态度解决，发挥创造能力，认识世界，改变世界。
【自主梳理】1.
要求学生翻开课本P45，迅速阅读1a-1e部分的内容。
并按要求完成课本上相应的任务.
2.
检查答案，先要求全班一起给出答案并检查讨论。
【重点领悟】通过谈论薯条的发明，充分掌握被动语态的用法.
【探究提升】初中被动语态语法讲解
(一)
语
态
分
类
英语动词有两种语态.，主动语态和被动语态。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。如：
They
will
build
a
new
bridge
over
the
river.
(主动)
A
new
bridge
will
be
built
over
the
river.
(被动)
汉语中常用“被”、“给”、“由”、“受”等词用来表示被动，而英语用：
助动词be
+
及物动词的过去分词构成。
(二)
被动语态的时态、人称和数的变化主要体现在be的变化上，其形式与系动词be的变化形式完全一样。
一般现在时：am
/
is
/
are
+
done
一般过去时：was
/
were
+
done
一般将来时：shall
/
will
+
be
done
一般过去将来时：should
/
would
+
be
done
现在进行时：am
/
is
/
are
+
being
+
done
过去进行时：was
/
were
+
being
+
done
现在完成时：have
/
has
+
been
+
done
过去完成时：had
+
been
+
done
将来完成时：shall
/
will
+
have
been
+
done
过去将来完成时：should
/
would
+
have
been
+
done
［注］被动语态没有将来进行时和过去将来进行时。
【学法引领】完成一个任务：
　　?An
interesting
story
for
you
The
history
of
potato
chips
Did
you
know
that
potato
chips
were
invented
__________
invented
by
mistake?
Potato
chips
were
____________by
a
chef
called
George
Crum.
They
were
invented
1853
in
______.George
Crum
cooked
them
for
a
were
crispy
long
time
until
they
__________.And
he
sprinkled
really
salty
lots
of
salt
on
them
so
they
were
__________.　　
说明：通过完成一个任务．让学生运用所学内容，既巩固了本课所学的语言目标，又开拓了学生的思维，使学生的思维跳出了课本，培养学生在实际生活中运用本课所学内容，来解决现实生活中的实际问题的能力，真正达到了新课标提出的培养学生综合运用语言的能力。
【巩固训练】
一、根据句意用本单元的词的适当形式填空
1．一Do
you
know
when
the
computer
was
i__________?
一In
1976．
2．I
don’t
know
if
shoes
with
a________
heels
are
comfortable
to
wear．
3．Food
cooked
in
the
m__________
oven
is
not
crispy
enough．
4．She
tasted
the
soup
and
added
more
salt
because
it
wasn’t
s_______
enough．
5．Did
you
know
potato
chips
were
invented
by
m__________?
6．Last
Sunday．I
met
a
friend
whom
I
hadn’t
seen
for
years
by
a_________．
7．一Where
was
the
bike
p_________?
一In
Tianjin．
8．The
new
tea
produces
a
p__________
smell．Would
you
like
to
drink
some?
9．Remember
to
pack
a
c_________
if
you
want
to
take
pictures
there．
【学习反思】本课主要话题是谈论薯条的发明历史。主要练习被动语态的句式用法。通过课前预习，可以增强课堂教学效果。
Unit
6
When
was
it
invented？（第4课时）
【学习目标】1.知识与技能目标：掌握单词、短语和句型。2.
过程与方法：通过对短文的阅读和复述，培养及时记忆的能力。3.情感、态度和价值观目标：展开想象的翅膀，谈谈自己的创造发明，培养未来发明家。
【自主梳理】勾画出文中的疑难点，然后再读教材进行填空。
15分钟独立完成。学习建议;迅速浏览课文，跳过生词，捕捉关键信息，把握文章主题，完威阅读题目。
【重点领悟】Passive
Voice
and
the
history
of
the
basketball.
【探究提升】本课时的主要内容是一篇关于篮球发展历史的短文，
在学习短文之前教师可准备几个与短文内容相关的问题，然后邀请几位同学就提出的问题给出自己的答案或见解。
Questions:
Do
you
like
basketball?
Do
you
watch
basketball
game?
How
much
do
you
know
about
this
sports?
2.
进行短文学习之前，教师要准备几个有助于理解短文内容的问题。
要求学生带着问题去阅读短文。在阅读完短文之后应该能回答所给出的问题。
1.How
old
is
the
sport
of
basketball?
It's
a
little
over
100
years
old.
2.When
was
it
invented?
It
was
invented
in
1861.
3.When
was
the
first
basketball
game
in
history
played?
On
December
21st,
1891.
4.Why
were
the
Berlin
Olympics
important
for
basketball?
Because
it
became
an
Olympic
event
in
Berlin.
5.What
do
many
Chinese
play
basketball
for?
They
play
it
for
fun
and
exercise.
【学法引领】通过带着问题去学习短文，从而达到导入新课的目的，同时也可以使学生积极反思自己的学习生活，与以前的生活作比较，
科学安排好自己的学习时间。要求学生快速默读短文，熟知大意，并找出各段的主题
大意。然后邀请几位同学给出自己的答案，全班一起检查讨论。
【巩固训练】
根据句意及首字母提示完成单词。
1.
These
people
were
d_____
into
two
groups
according
to
their
ages.
2.
Look,
a
few
pear
r_____
on
the
trees.
Let’s
pick
them.
3.
It’s
said
that
the
potato
chips
were
invented
by
m____.
4.
The
hot
weather
made
the
milk
s____.
5.
My
grandparents
often
goes
shopping
with
a
b____
(篮子).
The
keys
:1.
divided
;2.
remain;
3.
mistake;
4.
sour
;5.
basket
【知识网络】It
is
believed
that
the
first
basketball
game
in
history
was
played
on
December
21st,
1891.
人们认为1891年12月21日是历史上的第一次篮球比赛的日子。
本句中的It
is
believed
that...
相当于people
believe
that...
是“人们相信/认为“的意思，that引导的是主语从句。
It
is
believed
that
by
the
year
2010,
the
population
of
the
world
will
be
seven
billion.(=People
believe
that
by
the
year
2010,
the
population
of
the
world
will
be
seven
billion.)
人们都认为到2010年，世界人口将达到七十亿。
【横向辐射】类似的结构：
It
is
reported
that…
据报道??
It
is
supposed/thought
that…
人们认为??
It’s
known
that…众所周知??
【学习反思】本课主要话题是谈论篮球的历史。主要练习被动语态的句式用法。难度较大，但是学生们对发明话题很感兴趣，所以学习积极性很高。
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