5.论证方式-假设论证法.ppt

??????????????????11假设论证(假设论证(assumptionassumption))??????????????????????????22??????????????????????????1)1) if if??2)supposing (that)/suppose 2)supposing (that)/suppose thatthat??3)3)provided/given thatprovided/given that??4)4)just imagine what would just imagine what would be like ifbe like if……33????????????????????????????5) unless / once / in case5) unless / once / in case??6) without+6) without+??????????44??Eg:Eg:??1)1)Suppose/Supposing (that)Suppose/Supposing (that) we we miss the train, what shall we do?miss the train, what shall we do???2)2)We shall go We shall go provided thatprovided that the the weather is is fine.??3)3)Provided thatProvided that circumstances circumstances permit, we shall hold the meeting permit, we shall hold the meeting next ??Eg:Eg:??4)4)Look at this abyss! Look at this abyss! Just imagine Just imagine what it would be like ifwhat it would be like if falling down? falling down???5)5)He will accept the job He will accept the job unlessunless the the salary is too is too low.??6) China will shake the world6) China will shake the world once once it it awakens--------Napoleonawakens--------Napoleon??7) 7) In caseIn case it pours, don it pours, don’’t expect expect me.??8) She will join us 8) She will join us on the condition on the condition thatthat you will also be there. you will also be ??9) You can't get rich 9) You can't get rich withoutwithout taking taking risks. risks. ??10) The old man cannot walk 10) The old man cannot walk withoutwithouta ????????????????22????????????????????????????????????????????????????????????88??endangers peopleendangers people’’s healths health((????))????Chronic diseasesChronic diseases((????)) lung cancer lung cancer??????????????????????CoughCough Soar throat Soar throat Eye irritation Eye irritation99Eg1:Eg1:????????To start with, smoking To start with, smoking endangers peopleendangers people’’s health. s health