酒精灯是实验室中常用的加热仪器，某小组同学对酒精灯火焰温度进行如下探究．

某同学用下列装置制备并检验Cl₂的性质。


下列说法正确的是(　　)

根据句意和汉语注释，在答题卡标有题号的横线上，写出单词的正确形式。
(1)The first step towards forming ____ (习惯) is that you can plan everything well.
(2)My parents always ____ (比较) me with my sisters before. That made me feel unhappy.
(3)Wine and other goods____ (进口) from France are popular in China.
(4)Look! There are two coats hanging over there. The blue one is the____ (干的) of the two.
根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。
(5)Look at ____ (you) in the mirror. How dirty your faces are!
(6)Grandpa told me that he joined the Party in his early____ (twenty).
(7)Here comes the most exciting moment! One of the ____ （spaceman）is out of the spacecraft.
(8)If you want a strong body, you must eat and drink ____ （health）.

There's a knock at the door. (同义句)      

____ ____ ____ at the door.

向一定质量AgNO₃和Cu(NO₃)₂的混合溶液中加入Zn,溶液质量与加入Zn的质量关系,如下图所示。下列说法不正确的是（   ）