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What’s the use of the branches?
Branches provide shade(遮阳) for people in summer.
Think about the following questions.
What’s the use of the leaves?
Leaves can change carbon dioxide into oxygen and also provide shade for people in summer.
What’s the use of the roots?
Roots can take in water from the soil(土壤). They can also prevent(防止) the soil from being washed away.
What’s the use of the fruit?
People eat the fruit.
Look at the pictures and the title of the interview on page 45. Then answer the questions below. (P44)
1. What do you think the interview is
about?
a. The lives of trees.
b. Why trees are important in our daily lives.
2. What can we make from trees?
Write down three examples.
__________________________
paper, pencils, chairs
Read and underline the sentences using present continuous tense.
be doing 现在进行时,用来表示某时刻正在进行的动作。
Read the first part of the conversation and answer the following question.
Why are trees major fighters against air pollution?
They keep the air cool and clean.
They take in harmful gases from the air.
They produce oxygen for us to breathe.
Read the second part of the conversation and answer the following question.
What can we get from trees?
Fruit
Oil
Tea and furniture