问题 实验题

将下图所示的装置放置在光亮的地方(日光没有直接照射),一段时间以后,可观察到的实验现象:量筒中__________;水槽中_________;饱和食盐水的pH _________(填变大、变小或不变),得到的气态产物有_______ 、_________ ,油状液滴的成分可能是(写分子式)___________ 。

答案

气体颜色变浅,液面上升,有油状液滴出现 ; 有白色晶体析出 ; 变小 ; CH3Cl ;HCl ; CH2Cl2 ,CHCl3,CCl4

翻译题

完成句子。

     阅读下列各小题,根据括号内的汉语提示,用句末括号内的英语单词完成句子。

1. By the time they got back to the camp, they                       (用完了) water. (run)

2. They talk long hours together,                               (他们每次见面). (time)

3. Although house construction                         (每个国家的建筑结构不相同),you can find many

    diverse styles in each country.(vary)

4.  Please tell me ___________(这个事故是怎样发生的). I am still in the dark.(come)

5. Under no circumstances                     (Karen将决不同意)to move to a new place far away from

    her workplace,because it isn't convenient for her family and herself.(agree)

6. In the Asian Games in Guangzhou, China got nearly                        (四倍的金牌)gold medals 

    as Japan. (many)

7 It was not until the baby girl was fast asleep                         (父母才有时间) to deal with their

    personal affairs. (have)

8. The weather                          (天气好),we have made up our minds to go for a picnic.(be)

9.                       (被捕猎了九十年后)for almost 90 years, the lions were finally protected. (hunt)

10.                         (如果 Mark邀请我),I would have been glad to come.(if)

单项选择题