问题 填空题

已知丙二酸二乙酯能发生以下反应:

有机物A在一定条件下可以发生如下图所示的转化(其他产物和水已省略)。其中相关物质的结构和性质为:A不含甲基,能与金属钠反应生成氢气;B所含碳原子数与A相同,且只含有一种官能团;C能发生银镜反应;1molD与足量碳酸氢钠溶液反应可产生二氧化碳2mol。

请结合图中其它信息回答下列问题:

(1)写出下列物质所具有的官能团的名称:C___________,D___________

(2)①~⑤反应中,属于取代反应的是________________(填序号)。

(3)写出A、G的结构简式:A__________      _, G_______  __________

(4)写出②、④反应的化学方程式:

②________________________________________________________________。

④_________________________________________________________________。

答案

(1) 醛基,羧基     (2)①④⑤

阅读理解

阅读理解。

     Lots of families in Great Britain have one or more pets. Dogs are the favorite pets and there are

about 6,000,000 0f them in Britain. The second favorite are cats (about 5,000,000) and the third favorite

is a kind of bird - the budgie  (虎皮鹦鹉). Some families do not keep cats or dogs. They keep other

animals as pets in their homes. There are more than l2, 000,000 pets in Britain.

    The British take good care of (照顾) their pets. They give them nice names: Rover, Rex, Cindy,

Misty (for dogs); Albert, Snowy, Fluffy, Tom (for cats) ; Polly, Chatterbox (for parrots );  Guy,

Scamper, Shipley ( for monkeys). When they speak of their pets, they say, "He", "She" (not "It").

    The British give their pets nice food to cat. They buy food for their pets in pet shops. The British

are pet lovers!

1. There are over _______ pets in Great Britain.       

A. 5, 000,000            

B. 6, 000,000        

C. 11, 000,000           

D. 12, 000,000

2. In Britain, monkeys usually have names like _______ and _______.        

A. Chatterbox; Scamper        

B. Shipley; Guy        

C. Rover; Cindy        

D. Misty; Snowy

3. British people give their pets _______ and _______.        

A. houses; nice names        

B. food; houses        

C. nice names; nice food        

D. pet shops; pet food

4. Look at my doggy! _______ is a nice boy, right?         

A. He        

B. It        

C. She        

D. Dog

5. The best title (题目) for the passage is _______.         

A. Animals in Britain         

B. Pet's Name         

C. Pets in Britain             

D. Dog Pets

多项选择题