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___ 5.對 …… 有益 ____________ 6.等等 ____________ as we know feed on… a kind of in a word be good for… and so on 單元主題寫作二 7.由 …… 制成 (看得出原材料 )____________ 8.對 …… 重要 ____________ 單元主題寫作二 be made of… be important to… 常用句型 1. Plants are important to us human beings. 2. We know we feed on rice, wheat… 3. We make many medicines from plants. 4. Our clothes are usually made of cotton. 5. Books, paper and pencils are all from plants. 單元主題寫作二 Plants are important As we know, plants are im