问题 填空题

某芳香烃X是一种重要的有机化工原料,有机化合物Y的分子式为,它们能按下图所示转化关系生成某种长效缓释阿司匹林(方框内物质均为有机物,无机产物已略去)。其中,E能使溴的四氯化碳溶液褪色,且分子中有1个甲基;G的蒸气密度是相同条件下H2密度的31倍,且分子中无甲基,1 molG与足量金属钠作用产生H222.4 L(标准状况)。

已知:

(i)阿司匹林又名乙酰水杨酸:

请回答:

(1) X的结构简式为__________, H分子中官能团的结构简式为__________;

(2) 反应②的化学方程式为__________,

反应①可否调至反应②、③之后进行?__________(选填“可以”或“不可以”),

请简述理由:___________________________________;

(3) 写出一种同时满足以下条件的D物质的同分异构体的结构简式_______________;

a.能发生银镜反应           b. 1个分子中含3个含氧官能团

c.苯环上一氯代物只有2种      d. 1mol有机物最多可消耗2mol NaOH

(4) 反应④的化学方程式为_______________;

(5) 阿司匹林、有机物F和G嫁接形成某种长效缓释阿司匹林,它能持续缓慢地释放出乙酰水杨酸,使人体能长时间存在乙酰水杨酸,用于抗血栓治疗。写出该长效缓释阿司匹林的结构简式_______________。

答案

完形填空
The bell rang loudly.Everybody packed their school bags and got ready 1 home.When the teacher dismissed the children,they lined up in two rows and walked 2 to the school gate.
Usually,George’s 3  would fetch him home from school.But today she was not there.George waited for fifteen minutes 4 he walked home.
When he reached home,he knocked at the door as he did not bring his keys.Surprisingly,no one opened the door.George 5  his mother was in the toilet,so he waited for his mother.After a few minutes there was 6  no answer.Just as he was about to go to the nearby coffee shop where his father worked to 7  the keys,he heard the friendly voice of his neighbor,John.
George told John that no one was at home and Johns mother suggested that George could stay in their house till his mother came back.George and John played happily till evening when George’s mother came back.George 8 John and his family before he went back into his house.His mother told him that she had a backache and she had to see a doctor. 9 this experience,George learnt an important 10,“Neighbors are people who help each other.”
小题1:
A.to goB.go C.to go toD.goes to
小题2:
A.orderingB.orderly C.orderD.orders
小题3:
A.fatherB.neighbor C.motherD.doctor
小题4:
A.beforeB.after C.whenD.while
小题5:
A.hopedB.thought C.saidD.preferred
小题6:
A.almostB.already C.alwaysD.still
小题7:
A.getB.make C.findD.buy
小题8:
A.calledB.loved C.thankedD.visited
小题9:
A.FromB.About C.ToD.Of
小题10:
A.wordB.saying C.sentenceD.lesson
单项选择题