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问题 填空题

已知乙烯能发生以下转化：

（1）乙烯的结构简式为：______

（2）写出B、D化合物中官能团名称：B中含官能团______；D中含官能团______；

（3）写出反应的化学方程式

①：______   反应类型：______

②：______ 　反应类型：______

③______反应类型：______．

答案

根据乙烯的性质可知B为CH3CH2OH，在Cu作催化剂条件下反应生成C为CH3CHO，根据B和D反应生成乙酸乙酯可知D为CH3COOH，

（1）乙烯的结构简式为CH2=CH2，故答案为：CH2=CH2；

（2）B是乙醇，乙醇的官能团是羟基，乙醇和乙酸之间发生酯化反应生成乙酸乙酯，乙酸官能团是羧基，

故答案为：羟基；羧基；

（3））①为乙烯在催化剂条件下与水发生加成反应生成CH3CH2OH，方程式为，

故答案为：CH2═CH2+H2O→CH3CH2OH；加成；

②为CH3CH2OH被催化氧化可生成CH3CHO，方程式为2CH3CH2OH+O2

Cu或Ag
△
2CH3CHO+2H2O，

故答案为：2CH3CH2OH+O2

Cu或Ag
△
2CH3CHO+2H2O；氧化；

③为乙酸与乙醇在浓硫酸作用下的酯化反应或或取代反应生成乙酸乙酯，反应的方程式为

，

故答案为：

；酯化反应或取代反应．

多项选择题

下列按水平投影面积1／2计算建筑面积的有（）。

A.屋顶上层高2.10m有围护结构的水箱间

B.单排柱车棚

C.无永久性顶盖的室外楼梯

D.宽度2.20m独立柱雨篷

E.无永久性顶盏的架空走廊
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单项选择题

German Chancellor Angela Merkel won over German voters in the Federal Election on Sept. 27. Can she now be won over by a French charm offensive (1) at repairing the relationship that was once at the heart of Europe That’s the question being asked in Paris, (2) top government officials are (3) talking about their desire to rekindle closer ties (4) their neighbors across the Rhine. (5) the end of World War II the Franco-German relationship has been the motor of European integration, the (6) force behind the creation of the European Union and, more recently, the introduction of the euro. But the ardor has (7) in this decade, particularly under Merkel, who has regularly struggled to (8) her irritation with French President Nicolas Sarkozy’s grandstanding. Sarkozy, (9) , has often been impatient with what he (10) Merkel’s lack of resolve.

The sometimes (11) personal rapport is a long way from the public shows of affection their predecessors staged, particularly Helmut Kohl and FranCois Mitterrand, who movingly held (12) in 1984 in a Verdun cemetery. There’s been tension on (13) , too. Charles Grant, director of the London-based think tank Centre for European Reform, points out that France and Germany have been (14) on issues from how best to reflate their economies during the economic (15) to the smartest strategies for dealing with Russia.

But influential movers in France are now (16) to put the relationship back on a friendlier footing. In a recent paper French think tank Institute Montaigne (17) an ambitious agenda for the two nations, (18) that a new impetus is needed if Europe’s voice is to be heard in a world (19) of big new players, such as Brazil and India, and at a time when President Obama seems fax more (20) with China and the rest of Asia than with America’s traditional allies in Europe.

10（）

A.constructs

B.convinces

C.conceals

D.considers
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