1.单选题- (共2题)
A.煤的液化和气化都是物理变化 |
B.乙醇、乙酸和甲醛广泛应用于食品加工 |
C.蛋白质、橡胶和塑料都是天然高分子 |
D.高铁车厢大部分材料采用铝合金,因铝合金强度大、质量轻、抗腐蚀能力强 |
2.选择题- (共3题)
Visas
Travelers to France must have a valid passport (有效护照). Visitors from EEC (欧共体) countries and America do not need visas, but visitors from other countries should contact the nearest French consulate (领事馆) or tourist office about getting one before travelling.
Arrival
You could arrive at one of the two airports serving Paris.
Charles de Gaulle is bigger and more modern. You can take a comfortable and inexpensive Air France bus to Porte Millot in the 16th district, then take a bus , the Metro or a taxi to your hotel. There are also city buses (No. 350 and 351) which go into Eastern Paris, Nation and the Gare de Train Station. A taxi takes about 40 to 50 minutes to reach the centre, and costs about 170 Francs. Add another 30 minutes for rush hours.
Orly is the other major airport, which have mostly domestic (国内的) flights. Air France buses go to the Invalides Terminal, a convenient drop off place, where you can take the Metro or RER directly. A city bus (Orly bus) comes into the southern end of Paris at the Denfer-Rochereau Metro Station every 15 minutes. A taxi ride, not during rush hour, takes 30-40 minutes and costs about 120 Francs.
If you arrive at a train station, you can follow the clearly posted signs towards the Metro or taxi stands.
Money
Many banks in Paris will change cash or travelers’ checks, and there are no special differences in rates (比率). Banking hours are 9 a.m. to 4:30 p.m. on weekdays. The exchanges window at the Gare du Nord is open until 10 p.m. on weekdays, and other station banks are open until 8 p.m.
There are automatic (自动的) exchange machines at the Opera (the BNP Bank) and at No.66 on the Champs-Elysees that will change other bills into Francs. International VISA cards can be used in automatic tellers at many city banks.
If you lose your credit card, here are some hotline numbers: American Express (Tel: 4777-7200); Diners Club (Tel: 4762-7575); Carte Bleu Visa (Tel: 4277-1190).
3.填空题- (共2题)

(1)天冬酰胺所含元素中, (填元素名称)元素基态原子核外未成对电子数最多,天冬酰胺中碳原子的杂化轨道类型有 种。
(2)H2S和H2Se的参数对比见表。
化学式 | 键长/nm | 键角 | 沸点/℃ |
H2S | 1.34 | 92.3o | 一60.75 |
H2Se | 1.47 | 91.0o | 一41.50 |
①H2Se的晶体类型为 ,含有的共价键类型为 。
②H2S的键角大于H2Se的原因可能为 。
(3)已知钼(Mo)位于第五周期VIB族,钼、铬、锰的部分电离能如下表所示
编号 | I5/kJ·mol-1 | I6/kJ·mol-1 | I7/kJ·mol-1 | I8/kJ·mol-1 |
A | 6990 | 9220 | 11500 | 18770 |
B | 6702 | 8745 | 15455 | 17820 |
C | 5257 | 6641 | 12125 | 13860 |
A是 (填元素符号),B的价电子排布式为 。
(1)E元素的盐酸盐或硫酸盐可以用来净水,原理是_______________________(文字表述)。
(2)A2W2的分子中所含的化学键为________、________,经测定A2W2为二元弱酸,其酸性比碳酸的还要弱,请写出其第一步电离的电离方程式___________。
(3)废印刷电路板上含有铜,以往的回收方法是将其灼烧使铜转化为氧化铜,再用硫酸溶解。现改用A2W2和稀硫酸浸泡废印刷电路板既达到上述目的,又保护了环境,试写出反应的离子方程式____________________。
(4)元素D的单质在一定条件下,能与A单质化合生成一种氢化物DA,熔点为800℃,DA能与水反应放氢气,若将1 mol DA和1 mol E单质混合加入足量的水,充分反应后生成气体的体积是__________________(标准状况下)。
(5)D的某化合物呈淡黄色,可与氯化亚铁溶液反应。若淡黄色固体与氯化亚铁反应的物质的量之比为1∶2,且无气体生成,则该反应的离子方程式为____________________。
(6)在常温下用气体密度测定BW2的相对分子质量,实验值比理论值偏________(填 “高”或“低”),其原因是___________________。
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【1】题量占比
单选题:(2道)
选择题:(3道)
填空题:(2道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:2
7星难题:0
8星难题:1
9星难题:0