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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Unit 4 Do it yourself,Study skills,Unit 4 Do it yourself,The boys like playing basketball.,They are,active,in doing sports.,But they are _ in study.,not active,in,active,The boys like playing basketba,happy,un,happy,not,happy,happyunhappynot happy,I will finish my homework as much as,possible,but its _ for me to finish all of it.,im,possible,not possible,I will finish my homework as m,Millies mom is,on business,(,出差,).Her bedroom is _.Can you help her make the room,tidy,?,un,tidy,not,tidy,Millies mom is on business(出,un,tidy,possible,im,possible,happy,un,happy,active,in,active,Opposites(,反义词,),tidy,prefix,es,前缀,We can add _,before,an adjective to express the opposite(,相反的,)meaning.,“un-”,“im-”,“in-”,untidypossible imposs,For most of the adjectives,we add“,un-,”to make it opposite.,friendly,happy,comfortable,certain,tidy,able ,fair ,lucky ,usual ,un,friendly,un,happy,un,comfortable,un,certain,un,tidy,un,able,un,fair,un,lucky,un,usual,Rules,For most of the adjectives,we,If the adjective begins with“,p,”,we usually add“,im-,”before it.,polite,possible,patient,possible,im,polite,im,possible,im,patient,im,possible,Rules,But:pleasant,un,pleasant,If the adjective begins wit,expensive,correct,active,direct,in,expensive,in,correct,in,active,in,direct,Rules,But some adjectives are special.You should add“,in-,”before them to make the opposite meaning.,expensive inexpensiveRules,1._friendly 2._happy,3._correct 4._polite,5._comfortable 6._expensive _healthy 8._possible,9._tidy 10._certain,11._patient 12._able,13.,7.,Check your memory!,un,un,un,un,un,un,un,im,im,im,in,in,_regular,14._honest,ir,dis,We can add,before,an adjective to express the opposite meaning.,“ir-”or“dis-”,1._friendly,1.Annie:Do you spend a lot of time doing outdoor,sports?,Simon:Sure.Its usual for me to stay at home all day.,2.Sandy:Our neighbour next door is putting something,on the wall.,Mum:Its possible to sleep with all that noise.,un,usual,im,possible,Read the conversation.Add the correct prefixes,to the adjectives so that all the sentences make sense,.,1.Annie:Do you spend a lot o,3.Millie:Are you able to fix your bicycle,Andy?,Andy:No.Im certain that I can fix it myself.,4.Mum:Suzy,your room is really tidythings,are all over the floor.,Suzy:Sorry,Mum.Ill tidy up right now.,un,certain,un,tidy,3.Millie:Are you able to fix,Discussion,How should we behave in class or in school?,We should be _ to others.,We should be _ to the classmates in need.,We should not be _ in sports.,We had better not make our classroom _.,We had better not wear _ clothes at school.,friendly/kind,patient/helpful,inactive,untidy,untidy/uncomfortable,DiscussionHow should we behave,Tommy and Leo are twin brothers.They look so much alike that people are,_,to tell them at first sight.,If one knows them well,its easy to tell them apart.,Tommy likes smiling.He is patient and willing to help others.However,Leo looks,_,for he,_,smiling and never greets others.When his classmates ask him questions,he is _ and _ to answer them.It is _ for Leo to behave that way.Leo looks _,because no one wants to make friends with him.He thinks it is _ for his classmates to treat him so coldly.,If Leo stops doing those _ things,people will,find it _ to differentiate Leo and Tommy,unfriendly,unhappy/uncomfortable,improper/impolite/incorrect,unfair,dislikes,impatient,unwilling,unable,improper,impossible,Fill in the blanks with adjectives with prefixes un-,in-,im-and dis-.,Tommy and Leo are twin,1,3,2,4,5,6,7,8,9,Playing a game:a magic box,Here is a magic box with nine cards,and under each card there is a task for you to finish.Choose any of them and finish the task.After you finish all the tasks,there is a big surprise for you!,132456789,Its _(,舒服的,)to sit in it.,Its _,(,不舒服的,)to sit on it.,comfortable,un,comfortable,Its _(舒服的)to sit,The boy is not very strong,for he is always _ in sports.,A.inactive B.active,A,The boy is not very strong,fo,not direct _,not kind _,not possible _,indirect,unkind,impossible,not direct _,unusual,The snow is so heavy.It is _ to,see such heavy snow.That is,the snow is,much heavier than,usual,.,unusual The snow is so heavy.,This isnt an important thing.=,This is an _ thing.,unimportant,This isnt an important thing,It is imcorrect to read someone elses,letter.,2.David often says bad words to others,so he is inwelcome.,3.Its infriendly to throw stones at,birds.,in,correct,un,welcome,un,friendly,Correct the mistakes:,It is imcorrect to read someo,Can you remember the rules?,We can add _,_(before/after)an adjective to,express the opposite meaning.,“,un-”,“in-”,“im-”,before,Can you remember the rules?We,Work out the rule!,1._,是最常用的否定前缀。,2.,否定前缀,_,常用在以字母,c,开头的单词前，,3.,否定前缀,_,常用在以字母,p,开头的单词前。,“,un-”,“,in-”,“,im-”,从来都不会用在以字母,l,、,r,开头的单词前。,、,b,、,m,Work out the rule!1._ 是,Summary,1.For most of the adjectives,we add“,un-,”to,make it opposite.,un,kind,un,happy,un,lucky,2.,If the adjective begins with“,p,”,we usually add,“im-”before it.,im,p,ossi
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