文档介绍：外研版
高中一年级
Module 5
Module 5
A lesson in a lab
Module 5
A lesson in a lab
Read the passage as quickly as you can and choose the best title for it .
The Different Uses of Metals
The Reaction of Metals
The Reaction of Metals with Oxygen
Passage A
Read the passage again and answer the following questions :
1. Which of the metals in the table reacts the most with oxygen and water?
potassium, calcium and sodium
2. What happens when you heat calcium in oxygen ?
It begins to form an oxide.
3. Which metals react with steam ?
Magnesium, aluminium and zinc
4. Does iron have a slow or fast reaction with steam?
It has a slow reaction.
5. Does copper react with water?
No, it doesn’t .
Read the passage carefully and fill the chart on page 45.
Read the passage again plete the sentences.
Passage B
1. In the first part of the experiment, the __ is dry ,not wet .
2. It shows that iron ___________ when the air is dry .
3. In the second part of the experiment, you must ___ the water to make sure there is no __ in it .
air
does not rust
boil
air
4. You add _______ to the water because this keeps __ out of it.
5. It shows that ___ does not rust in water that has no __ in it .
some oil
air
nail
air
Complete the passage with proper words according to passage A and B
It is hard to think of a world without metals. Different metals have different metals have different uses, for example, iron can be used in ________ equipment. But above all we should know whether it
electrical
will ____ under different conditions otherwise it will keep the equipment from working well. As we all know, if iron is heated in oxygen, it will react slowly but will not form an _____.
react
oxide