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  3. [audioFiles]2017m5x/audio_ezfj_066_170517[/audioFiles] Plastic We use pl

[audioFiles]2017m5x/audio_ezfj_066_170517[/audioFiles] Plastic We use pl

游客2024-09-13  10
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答案     Plastic
    We use plastic wrap to protect our foods. / We put our garbage in plastic bags or plastic cans. / We sit on plastic chairs, play with plastic toys, / drink from plastic cups, and wash our hair with shampoo from plastic bottles. / Plastic does not grow in nature. It is made by mixing certain things together. / Plastic was first made in the 1860s from plants. That plastic was soft and burned easily. / The first modern plastics were made in the 1930s. / Over the years, hundreds of different plastics have been developed. / There is a plastic for almost every need. Scientists continue to experiment with plastics. / They hope to find even more ways to use them. /
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