2022英语周报新课程高一13答案

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【答案】(1)羟基、醛基(2分)加成(1分)(2)澳化氢(HBr)(1分)CH2CHBr(1分)OHECH一CH2(3)n HOCH—CH=CH2一定条件CH-OH(2分)OH(4)CHCOOH或CHOOCH(任写一种)(2分)CH;CH,OMgBrOHCH2BrCH:CHOH2O(5)CH:MgBrCH2 CHCH,CH2CHCH(3分)CHO【解析】A与苯酚发生加成反应得到B,B经氧化生成C(),乙炔与澳化氢加成生成H2C-CHBr,OHH2C一CHBr在Mg和乙醚的作用下生成F,F与C发生已知信息的第二步反应得到G,G发生水解得到H,H和乙酸酐在冰水浴条件下反应得到W,据此分析解题。CHO(1)C为,含氧官能团的名称是羟基、醛基；A→B发生酚醛加成反应。OH(2)由分析可知D→E还需要的无机试剂是溴化氢；E的结构简式为CH2一CHBr。OH(3)H含有碳碳双键，H在一定条件下发生聚合反应的化学方程式为nH0《○》CH-CH-CH2ECH-CH2一定条件CH-OH。OH(4)同时满足题给条件的H的同分异构体的结构简式为CHCOOH或《CHOOCH.CH:CH3(4)同时满足题给条件的H的同分异构体的结构简式为或CHCOOHCHOOCH。CHCH3(5)以乙醛、乙醚和甲苯为原料制备CH2CCH3,根据已知信息可知CH2 BrMe乙醚OMgBrCH:CHOCH2MgBr,结合C十F→G→H的反应可得CH2 MgBrCH2CHCHOHH20CH2CHCH3。-，1

Robert was fast sinking.It seemed as if Robert would be drowned.Just at the moment,Henry happened tobe passing by.Hearing the screams,Henry ran to the riverside,took off his clothes and jumped into the waterwithout hesitation.He reached Robert just as he was sinking the last time.With great effort,and at the risk ofdrowning himself,he brought Robert to the shore.Thus,Robert's life was saved.Robert and his new friends were ashamed of having called Henry a coward.They realized that Henry had true courage.They said sorry to Henry for their rude behavior and asked for hisforgiveness.Henry forgave them happily.He and Robert were friends again and they went home together asusual.From this,Robert learned what true courage was:never be afraid to do good,but always be fearful ofdoing evil.