Lesson 21 Books or computers？教案1

Lesson
21
Books
or
computers？
教案
1教学目标
能够记住并运用下列词汇和短语:
appear, modern, electronic, sell(sold/sold),pass
on, by
hand, printing
press, keep
on.
2.通过阅读掌握以下阅读策略,提高阅读能力:
(1)运用skimming(略读)整体感知课文,找出文章的主旨大意,把握文章的总体结构;
(2)运用scanning(寻读)寻找细节完成短文填空。
3.复述课文,谈论书的历史。
4.通过小组活动讨论印刷机和网络哪项发明更重要,并说明理由。
5.书是我们最好的朋友,乐于读书,坚持读书,让阅读成为一种习惯。
2学情分析

通过一年多的学习,大部分学生已经能够流畅地朗读课文,能根据上下文猜测生词的意思。我们还需进一步培养学生根据上下文和构词法推断和理解生词的含义;理解段落中各句子之间的逻辑关系;找出文章的主题句理解故事情节;根据不同的阅读目的运用简单的阅读策略获取信息的能力。
3重点难点
1.
Retell
the
lesson.
2.
Talk
about
the
importance
of
the
printing
press
and
the
Internet.
4教学过程
活动1【导入】StepⅠ.Lead－in
and
warm
up
Play an English song《Keep Trying》
Think about:
1.
How can we get knowledge
2.
In ancient times,
without paper, how can we get knowledge
Add: Paper was invented during the Han Dynasty. It changed the world.
【设计意图:】播放英文歌曲活跃课堂气氛,问题讨论激起学生学习英语的兴趣,贴近学生生活实际,使学生有话可说。
活动2【讲授】StepⅡ.Teach
the
new
words
and
phrases.
Show
some
pictures
to
learn
the
new
words
and
phrases.
【设计意图:】通过图片或语境教学单词,学生易于理解并掌握。
活动3【活动】Step
Ⅲ.
Skimming
Read and number the paragraphs in the correct order.
Books or Computers
(
) (
) (
) (
)
(a)Recently,
computers and the Internet changed the world again.
A new kind of book appeared:
the electronic book
(e-book).E-books
are quickly changing people’s reading habits.It is easier for people to buy and sell books online.Information travels faster and farther.
(b)Then,the printing press appeared and changed the world. With modern technology,
it was possible to print books quickly.
It was also possible for common people to read books.
(c)The history of books is very interesting.
In ancient times,
there were no books,
and people passed on their knowledge by telling
stories.
Later,
people learned how to write and make paper.
With paper,
people began to write down their stories.
They wrote each word by hand.
It took a long time to write just one book!
(d)Nowadays,
people have many ways to read books.No matter what you have,a computer,a tablet, a laptop,an e-reader or a real
book,
keep on reading.
【设计意图:】运用略读法整体感知课文,找到每一段的中心思想,把握文章的总体结构。请学生找到是哪些词汇或句子帮到了他,在文本中用笔划出答案。对学生进行阅读策略指导,文章的主旨句一般出现在首段或尾段,每一段的中心句大多在段首或段尾。
活动4【活动】
StepⅣ.Read
Paragraphs
1,
2
and
3
again
and
fill
in
the
blanks.
Paper
With paper, people began to write down their stories. People wroteeach word ________. It took a long time to write one book.I__________ couldn’t travel far.
Printing press
When the printing press a_________, it changed the world. The m________ printing press can print books quickly, and makes it possible for the c_______ person to have easy access to read books.
Internet
Computers and the Internet changed the world. They made it possible for a new kind of book: the e_______ books. Traditionally books could only be bought and sold at the store, but today you can buy and s_______ books online.
【设计意图:】运用寻读法,引导学生从文中获取所需信息,引导学生对于重点词汇短语识记并在语篇中运用。
活动5【活动】StepⅤ.Listen
and
repeat.
Practice
reading
the
lesson
aloud.
【设计意图:】听并跟读,使学生及时纠正错误发音,做到正确地朗读;朗读课文是学生内化对课文的理解。
活动6【活动】StepⅥ.Drill
Retell the history of books according to the following key words:
ancient times,
pass on,
write down, by hand
then,
appear,
modern,
common
recently,
e-books,
habits,
sell,
Information
④nowadays,
keep on
Play the English song《Lemon Tree》to relax.
活动7【活动】StepⅦ.Work
in
groups.
Discuss:
Which invention do you think is more important --the printing press or the Internet Why
Answer:
I think ______is more important than_____. Because ____________.
One possible version: I think the printing press is more important.The printing press could make many books quickly.Because there were more books,more people could read books.Information began to travel faster and farther.Books also “kept”information for you.If you forgot something,you could look it up.The Internet is useful.But not all people have a computer.Not all people can use a computer.And to use a computer for a long time is bad for our eyes.
The other possible version: I think the Internet is more important. The Internet helps us find lots of information in just a few minutes.The printing press is useful.But it needs a lot of paper.We have to cut down trees for paper.That’s bad for our environment.Books can not be kept for a long time.
【设计意图:】复述和小组讨论都是更好的对本课所学知识的运用,是语言的输出,有利于提高学生的口语表达的能力。进行写作的指导,先亮明自己的观点,再说明理由。
活动8【活动】StepⅧ.Summary
1.
What
did
we
learn
in
this
lesson
2.
NO
matter
what
we
have,
we
must
keep
on
reading.
Make
reading
become
a
habit
in
our
life.
3.
Famous
saying:
Books
are
the
best
friends.
No
matter
what
difficulties
you
meet
with
in
life,
you
can
turn
to
them
for
help
and
they
will
never
discard(抛弃)you.——Alphonse
Daudet
(French
writer)
【设计意图:】进行课堂小结。书是我们的朋友,鼓励学生多读书,坚持读书,让阅读成为一种习惯。
活动9【作业】StepⅨ.Homework
1. Master the new words and phrases.
2. Retell the history of books.
(B)
3. write a short passage:(C)
Which invention do you think is more important——the printing press or the Internet Why
【设计意图:】分层作业,使不同层次的学生完成不同的作业。英语基础较差的学生可以完成复述,而基础较好的学生可以要求完成写的作业。关注学生的个体差异,有效做到因才施教。
活动10【讲授】板书设计
The
history
of
books:
ancient
times,
pass
on,
write
down,
by
hand
——no
books
then,
appear,
modern,
common
————
print
books
recently,
e-books,
habits,
sell,
Information——
e-books
nowadays,
keep
on
I
think
_________is
more
important
than_______.
Because____________.