热点试题

(8分)(一)糖类、油脂、蛋白质都是人体必需的营养物质。
(1)油脂被摄入人体后，在酶的作用下水解为高级脂肪酸和________(写名称)，进而被氧化生成二氧化碳和水并提供能量，或作为合成人体所需其他物质的原料。
(2)氨基酸是组成蛋白质的基本结构单元，其分子中一定含有的官能团是氨基(—NH₂)和________(写结构简式或名称)。人体中共有二十多种氨基酸，其中人体自身________(填“能”或“不能”)合成的氨基酸称为人体必需氨基酸。
(3)淀粉在淀粉酶的作用下最终水解为葡萄糖(C₆H₁₂O₆)，部分葡萄糖在体内被氧化生成二氧化碳和水。写出葡萄糖在体内被氧化的化学方程式：
_______________________________________________________________________________________________________________________________________________。
(二)《茉莉花》是一首脍炙人口的江苏民歌。茉莉花香气的成分有多种，乙酸苯甲酯()是其中的一种，它可以从茉莉花中提取，也可以用甲苯和乙醇为原料进行人工合成。一种合成路线如下：

(1)C的结构简式为________________________________________________________。
(2)写出反应①的化学方程式：______________________________________________。
(3)反应③的反应类型为________________________________________________。

下列各组词语中没有错别字的一项（    ）                           

A．和蔼休憩诧异缅规越矩

B．气概竣工踌躇殚精竭虑

C．沧桑悲怆戮力钟南捷径

D．斐然赉送追溯义愤添膺

Being on the road at 3:15 am to drive 450 kilometers wasn't in my plans for the weekend. I had been looking forward to a few     days to prepare myself for the following busy     .
My son, Simon, and his good friends were heading for the snowfield. I     my car to make sure that everyone could get to the drop-off point so that they could get together and enjoy their week's     by snowboarding and skiing.
The only thing that l was thinking of on my journey was that as soon as I     and said goodbye,1 would make the trip      ,in total, a round trip of 900 kilometers in just 10 hours. Such a long drive in one day was frightening, particularly as I was looking forward to relaxation.
Simon and I talked, on our way, a little about his break and a whole lot of his school subjects. It was great to have this time with him as we      spent five continuous hours together.
On my return trip, I     a strange sense of loneliness in some heavy morning fog. Within an hour it cleared. I spent the next four hours listening to some CDs and enjoying the scenery. Surprisingly, after my long trip home l was     refreshed（恢复精神）and energized even though 1 was physically tired. And I knew that l would have a good sleep that evening.
A change in your environment, no matter how great, can provide you with the chance to look at something from different ways, as well as to be refreshed and energized. Now I'm looking forward to my next       event and many more chances to spend quality time with those who are important to me and make my life more rewarding.

小题1:	A．surprising B．relaxing C．moving D．exciting

小题2:	A．hour B．day C．week D．month

小题3:	A．offered B．parked C．drove D．lent

小题4:	A．performance B．excitement C．activity D．break

小题5:	A．rested B．started C．arrived D．left

小题6:	A．forward B．back C．out D．away

小题7:	A．always B．usually C．sometime D．seldom

小题8:	A．developed B．showed C．lost D．kept

小题9:	A．greatly B．completely C．immediately D．mentally

小题10:

A．planned B．unexpected C．discussed D．prepared

— It’s convenient to travel from Ezhou to Wuhan by taking the newly-built green railway.
— Yes. It’s said that ________________ is enough.

A．fifteen minutes drive	B．fifteen-minutes drive
C．fifteen minute’s drive	D．fifteen minutes’ drive