问题 推断题

G是一种合成橡胶和树脂的重要原料;A是一种五元环状化合物,其核磁共振氢谱上只有一个峰;F的核磁共振氢谱上有3个峰,峰面积之比为2:2:3。已知(其中R是烃基)

有关物质的转化关系如下图所示,请回答以下问题。

(1)C中所含官能团的名称是________;④的反应类型是________ 反应。

(2)G的结构简式是____________________

(3)反应②的化学方程式为________________________

(4)若E在一定条件下发生缩聚反应生成高分子化合物,写出其中两种的结构简式:_________________

 (5)反应⑥的化学方程式为____________________

(6)有机物Y与E互为同分异构体,且具有相同的官能团种 类和数目,写出所有符合条件的Y的结构简式:________________

答案

(l)羧基;消去

(2)CH2=CHCH=CH2

(3)HOOCCH=CHCOOH +H2HOOCCH2CH2COOH

(4)

(5)HOOCCH2CH2COOH + 2CH3CH2OHCH3CH2OOCCH2CH2COOCH2CH3+2H2O

(6)

阅读理解

阅读理解。

     Different countries have different customs in giving presents.

     IN CHINA you must never give a clock to a Chinese person, because the sound of the word for

"clock" is similar to the sound for "death" in Chinese.  Also, don't wrap (包裹) a present in white,  black,

or blue paper, because these are the colors for funerals (葬礼). Don't give a knife, because something

sharp (锋的) can cut a friendship.

     IN RUSSIA if we give flowers as a present, we have to give odd numbers of them (one, three, five,

etc) because even numbers of flowers (two, four, six, etc) are for funerals.

     IN GERMANY flowers are a good present to take in your dinner hostess, but don't take her red

roses because it means you are in love with her.  Don't take thirteen of anything because it's an unlucky

number. Don't take an even number of anything, either. Don't wrap your present in white, brown, or

black paper.

1. Why can't we give a clock as a present to a Chinese? Because in Chinese _______.

A. the word "clock" has the same meaning with the word "death"

B. the word "clock" has the same sound with rhe word "death"

C. the word "clock" has the same meaning with the word "knife"

D. the word "clock" means "dangerous"

2. You rnay take _______ if you go to a birthday party in Russia or in Germany.

A. 10 flowers                      

B. 13 flowers

C.9 flowers                        

D.  11 red roses

3._______ thirteen is an unlucky number.

A. In China            

B. In Russia

C. In Japan            

D. In Germany

4. What's the Chinese meanings for "odd number" and "even number"?

A. 自然数和偶数

B. 基本数和奇数

C. 奇数和偶数

D. 幸运数字和不幸运数字

5. Which of the following is TRUE?

A. Neither Chinese nor Germans wrap presents in black or white paper.

B. Both Chinese and Russians wrap presents in black or white paper.

C. Both Chinese and Germans wrap presents in black or white paper.

D. Neither Chinese nor Russians wrap presents in black or yellow paper.

单项选择题