题目内容
【题目】听下面一段对话,完成五道小题,每小题仅填写一个词。这段对话你将听两遍。
【答案】
(1) Arrangements
(2) hall
(3) dining
(4) garden
(5) park
【解析】听力原文:
Good afternoon, everyone. I'm sure you are looking forward to meeting the families you're going to be staying with during the next 4 weeks. Now, please listen carefully to the following arrangements as the various families are waiting in groups to meet you.
If your name begins with the letter A to F, your host family will be waiting for you in this hall. At the end of the meeting, you should wait behind in here. Now, for those of you whose names begin with G to L, you should go downstairs to the dining room. When you get there, go to the far end of the room by the drinks machine. That's important as people whose names begin with a letter from M to R should go downstairs and wait at the opposite end of the dining room, near the doors into the garden. And the final group, those with names from S to Z, must go out of this hall, past the office to the car park--out to where the cars are parked by the main gate and your families will be waiting there.
【题目】某课外活动小组准备用如图所示的装置进行实验。现有甲、乙、丙三位同学分别选择了如下电极材料和电解质溶液:
A电极 | B电极 | X溶液 | |
甲 | Cu | Zn | H2SO4 |
乙 | Pt | Pt | CuCl2 |
丙 | Fe | Cu | ? |
(1)甲同学在实验中将电键K5闭合,Zn电极上的电极反应式为________________;
(2)乙同学准备进行电解CuCl2溶液的实验,则电解时的总反应方程式为____________________;
实验时应闭合的电键组合是________。(从下列五项中选择所有可能组合,第三小题也在这五项中选择)
A.K1和K2
B.K1和K3
C.K1和K4
D.K2和K3
E.K2和K4
(3)丙同学准备在Fe上镀Cu,选择了某种盐来配制电镀液,则该盐的化学式为______________,实验时,应闭合的电键组合是___________(选项如上)。