问题 完形填空

阅读短文,根据短文内容和已给出的首字母,在空白处填入适当的单词。将完整的单词写在短文后面的横线上。

November 19th, 2013                                                   Sunny 

Today is my first day in Singapore. It’s quite fascinating. I fell in love with this beautiful c小题1:  as soon as I got off the plane. The city was so tidy that I couldn’t find any r 小题2:.

My host family were waiting for me outside. I wanted to s 小题3: hands with them because they are Chinese, but they k 小题4:me to welcome me. All of us wanted to be as polite as possible. On the way to their home, my host p  小题5:  to a beautiful statue--- Merlion Statue and told me it was the s 小题6: of Singapore. My host had prepared a big dinner for me. When I saw forks and k 小题7: on the table, I told them I had learned how to use chopsticks before I left France for Singapore. I had the most delicious Chinese food. After dinner, we took a walk in the park n小题8:  the house. Though we are from d 小题9: countries, we talked happily. My host family went out of their way to make me r 小题10:  and feel at home.

答案

小题1:country/city

小题2:rubbish

小题3:shake

小题4:kissed

小题5:pointed

小题6:symbol

小题7:knives

小题8:near

小题9:different

小题10:relaxed

题目分析:本文讲述了作者在新加坡的经历,主要描述了接待我的主人热情的款待,说明虽然来自不同国度,但都能和睦相处。

小题1:根据本句的句意和开头一句Today is my first day in Singapore. 可知答案为country/city

小题2:根据前面的so tidy 可知后面that引导的结果状语从句为找不到一点垃圾;故答案为rubbish

小题3:根据后面的原因状语从句because they are Chinese可知根据中国的礼仪应该是见面习惯于握手;故答案为shake

小题4:but表示转折,和作者的预料是相反的;故答案为kissed

小题5:point to sth意为“指着某物”;故答案为pointed

小题6:主人说这座雕像是新加坡的象征;故答案为symbol

小题7:forks and knives为一固定的常用短语,意为“刀叉”;故答案为knives

小题8:near the house意为“在家附近”;为介词短语做定语;故答案为near

小题9:Though 表示转折,所以由此推断我们是来自于不同的国家;故答案为different

小题10:根据后面的feel at home可知前面是表示并列的使人舒适自在的感觉;故答案为relaxed

问答题

【化学选修5——有机化学基础】 (15分)

姜黄素(分子式为C21H20O6)存在姜科植物姜黄等的根茎中,具有抗基因突变和预防肿瘤的作用。其合成路线如下:

已知:

i.

ii.

(R1、R2、R3为烃基或氢原子)

iii. E的核磁共振氢谱中有两个峰

请回答下列问题:

(1)E中含有的官能团名称是                    

(2)B物质的名称为             ;试剂X为                 

(3)姜黄素的结构简式为                                  

(4)E →G反应的化学方程式为                                           ;     其反应类型是               

(5)下列有关香兰醛的叙述正确的是         (填正确答案编号)。

a.香兰醛能与NaHCO3溶液反应

b.香兰醛能与浓溴水发生取代反应

c.能与FeCl3溶液发生显色反应  

d.1 mol香兰醛最多能与3 molH2发生加成反应

(6)符合下列条件的香兰醛(K)的同分异构体有     种:①属于芳香族化合物 ②与氯化铁溶液发生显色反应 ③苯环上只有两个取代基 ④存在羰基的结构。写出香兰醛(K)的同分异构体中符合下列条件的结构简式                

①苯环上的一氯取代物只有2种;

②1mol该物质与烧碱溶液反应,最多消耗3molNaOH;

③核磁共振氢谱中有4种吸收峰。

单项选择题