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1、Unit 4 Inventions牛津深圳版八年级上册GrammarLearning objectives1.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 bulbtelephonewheelGreat inventions1:Alexan
2、der 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-inracticalreatestomfortableevelopedLets comparelight bulbtelephonewheelGrea
3、t inventionsQ1：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.Lets comparelight bulbtelephonewheelGreat inventionsQ2：Which invention do you think is the best invention in history?Why?tip：I think.is p
4、erhaps the greatest invention in history,because They help people live a better life.Lets compareDo you know the part of speech of these word?the most practicalthe greast inventionfaster and more comfortablethe most developedbetter compare form of adjectivesDiscussionQ:Who get a better mark in Art,B
5、elinda 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)_ DiscussionQ:who get the best mark in Art?（good)Alice got the best mark in Art.Q:Who got the best mark in Science?(good)_
6、DiscussionQ:who get the best mark in Art?（good)Alice got the best mark in Art.Q:Who got the best mark in Science?(good)_ DiscussionQ: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
7、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DiscussionQ: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 informationfollow the example to ask and answer questions about itQ:whose
8、 home is farther/further from school,Alices or Daisys?（far)Alices home is farther/further from school than Daisys.Q:Whose home.,Martins or Paulines?_ DiscussionQ:whose home is the farthest/furthest from school?（far)Martins home is farthest/furthest from school.Whose home.,Alices,Belindas or Erics?_
9、Discussionfollow the example to ask and answer questions about itDiscussionQ:Is Alices home as far as Martins?Martins home is as far as Alices.Belindas house is not so far as Ppare Erics and Paulines.B1 Look at the pictures below and complete the following sentences.Lets do3.The Hotwave _(high)the M
10、icro-King.4.The Micro-King _(deep)the Speedcook.5.The Hotwave and the Micro-King _(wide)the Speedcook and the Superoven.is as high asis not as deep asis not as wide asLets dowork out the rules form of adjectivescomparativessuperlativeswork out the rulesSuperlativescompareone thingto many otherscompa
11、rativescompare two thingscomparativeswork out the rulesadjectives with one 1 syllablethantallorshort+ercomparativesadjectives with two or more syllables 2+moreorless+interestingorboringthanwork out the ruleswork out the rulesadjectives that finish with yhappiorangri+erthanTom is happier than Jackwor
12、k out the rulesirregular adjectivesgoodbadfarbetterworsefurtherthanSuperlativescompareone thingto many otherswork out the rulessuperlativeswork out the rulesadjectives with one 1 syllablethetallorshort+esttalltallertallestadjectives that finish with ythe happiorangri+estwork out the rulesirregular a
13、djectivesgoodbadfarbestworstfurthestthework out the rulesadjectives with two or more syllables 2+mostorleast+interestingorboringsuperlativesthework out the rulesmore practiceWhich 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+asmore practiceWh
14、ich 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+thanmore practiceWhich insect is the smallest?句型总结:A 最.A+be+the+形容词最高级more practiceWhich 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：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。导图将重点单词，短语进行呈现。提高题：提高题：归纳说明文关于发明创造的思路归纳说明文关于发明创造的思路拓展题：拓展题：发现身边的发明发现身边的发明