Unit 4 Inventions 第三课时 Reading 课件（牛津深圳版八年级上册）

(共34张PPT)
Unit 4 Inventions
牛津深圳版八年级上册
Grammar
Learning objectives
1.学习形容词比较级和最高级构成
3.总结并掌握比较级和最高级的构成，运用比较级和最高级句型对事物进行比较
4.掌握和运用比较级的句式结构than,(not)as..as,be the+最高级
2.学习不规则形容词 "bad/bad", "good/good", "more/more", "less" and "far"比较级和最高级
5.培养学生总结语法规则的能力，并通过分组讨论培养学生的合作精神，感受发明给社会发展该来的影响
light bulb
telephone
wheel
Great inventions
1:Alexander Graham Bell invented one of the most p_______ telephones in 1876.
2: The wheel is perhaps the g_______ invention in history.
3: After the invention of the wheel, travelling became faster and more c____________.
4: American is the most d_______ country.
Lead-in
ractical
reatest
omfortable
eveloped
Let’s compare
light bulb
telephone
wheel
Great inventions
Q1：Which invention do you think is better telephone or wheel Why
tip：I think...... is perhaps better, because it makes sth become faster and more comfortable.
Let’s compare
light bulb
telephone
wheel
Great inventions
Q2：Which invention do you think is the best invention in history Why
tip：I think...... is perhaps the greatest invention in history,because They help people live a better life.
Let’s compare
Do you know the part of speech of these word
the most practical
the greast invention
faster and more comfortable
the most developed
better
compare
form of adjectives
Discussion
Q:Who get a better mark in Art, Belinda or Daisy (good)
Daisy got a better mark in Art than Belinda.
Q: Who got a better mark in Art,Belinda or Eric (good)
______________________
Q: Who got a better mark in Science,Belinda or Eric (good)
______________________
Discussion
Q:who get the best mark in Art （good)
Alice got the best mark in Art.
Q: Who got the best mark in Science (good)
______________________
Discussion
Q:who get the best mark in Art （good)
Alice got the best mark in Art.
Q: Who got the best mark in Science (good)
______________________
Discussion
Q:Who get a worse mark in Art,Belinda or Daisy (bad)
Daisy got a better mark in Art than Belinda.
Q: Who got a better mark in Art,Belinda or Eric (good)
______________________
Q: Who got a better mark in Science,Belinda or Eric (good)
______________________
什么+动词be (am, is,are)+形容词比较级+ than (比) +什么
Discussion
Q:who get the worst mark in Art （bad)
Alice got the best mark in Art.
Q: Who got the best mark in Science (bad)
______________________
analyze according to the chart information
follow the example to ask and answer questions about it
Q:whose home is farther/further from school,Alice’s or Daisy’s （far)
Alice’s home is farther/further from school than Daisy’s.
Q: Whose home......,Martin’s or Pauline’s
______________________
Discussion
Q:whose home is the farthest/furthest from school （far)
Martin’s home is farthest/furthest from school .
Whose home......,Alice’s,Belinda’s or Eric’s
______________________
Discussion
follow the example to ask and answer questions about it
Discussion
Q:Is Alice’s home as far as Martin’s
Martin’s home is as far as Alice’s.
Belinda’s house is not so far as Paul’s.
compare Eric’s and Pauline’s.
B1 Look at the pictures below and complete the following
sentences.
Let’s do
3. The Hotwave ____________ (high) the Micro-King.
4. The Micro-King _______________ (deep) the Speedcook.
5. The Hotwave and the Micro-King ________________ (wide) the
Speedcook and the Superoven.
is as high as
is not as deep as
is not as wide as
Let’s do
work out the rules
form of adjectives
comparatives
superlatives
work out the rules
Superlatives
compare
one thing
to many others
comparatives
compare
two
things
comparatives
work out the rules
adjectives with one
1 syllable
than
tall
or
short
+er
comparatives
adjectives with two
or more syllables 2+
+more
or
less
+interesting
or
boring
than
work out the rules
work out the rules
adjectives that finish
with y
happi
or
angri
+er
than
Tom is happier than Jack
work out the rules
irregular adjectives
good
bad
far
better
worse
further
than
Superlatives
compare
one thing
to many others
work out the rules
superlatives
work out the rules
adjectives with one
1 syllable
the
tall
or
short
+est
tall
taller
tallest
adjectives that finish
with y
the
happi
or
angri
+est
work out the rules
irregular adjectives
good
bad
far
best
worst
furthest
the
work out the rules
adjectives with two
or more syllables 2+
+most
or
least
+interesting
or
boring
superlatives
the
work out the rules
more practice
Which circle is bigger
green circle blue circle
.......... is as big as ..........
句型总结:表达A和B一样....
as + adj.原形+ as
表达A不如B ....
not as/so+ adj.原+as
more practice
Which circle is bigger
green circle blue circle
.......... is bigger than ..........
句型总结:两者中，A比B....
A +be+形容词+er+than
more practice
Which insect is the smallest
句型总结:A 最..
A+be+the+形容词最高级
more practice
Which one is the most /least colorful
句型总结:A 最..
A+be+the+most/least形容词最高级
homework
基础题：
借助工具书，将重点单词整理在笔记本上，并绘制思维导图将重点单词，短语进行呈现。
提高题：
归纳说明文关于发明创造的思路
拓展题：
发现身边的发明
谢谢
21世纪教育网（www.21cnjy.com)
中小学教育资源网站
兼职招聘：
https://www.21cnjy.com/recruitment/home/admin