Unit 14
Language Instructions
To give instructions and commands we use the root form of verbs: Cover the dried beans with water . Do not fill the jar to the top .
1 Read this student’s account of an experiment.
WB 5 p162
Making a Baking Soda Volcano First, we mixed flour, water, salt and oil in a big bowl and made some stiff dough. We stood an empty plastic bottle on a tray, then we wrapped the dough around the bottle and made a cone shape with it. Next, we poured warm water into the bottle.
We did not fill the bottle right up to the top. After that, we added a small amount of washing powder. Then we put two big spoonfuls of baking soda into the bottle. Finally we poured vinegar into the bottle very slowly. The mixture shot up and poured down the sides of the cone like a volcano erupting.
Write instructions on how to perform the experiment. Example: First, mix flour, water, salt and oil in a big bowl.
Give instructions for playing a game. This could be a sport or a game like dominoes or marbles. Imagine that you are explaining to a younger student how to play this game.
2
Passive voice
We can use many verbs either in the active voice or in the passive voice: The students prepared the seed trays . è active In the active voice the subject ( the students ) performs the action ( prepared ). The seed trays were prepared by the students. è passive In the passive voice, the subject ( the seed trays) receives the action.
3 Find four examples of passive verbs in the reading text on page 124.
• If appropriate, tell students that we call verbs used to give instructions and commands imperative verbs. • Exercise 1: You can also use sand or paper for the cone of the volcano. DA Exercise 2: This can be an oral exercise for most students. Some students may write their instructions.
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