Ⅲ. Read and circle. 读一读，圈出与画线部分字母组合发音相同的单词。
One day, a group of student volunteers stood quietly near a big old tree. They came to the forest to look after small animals and clean up the area. A cheerful girl was tired, so she sat on a chair beside them. Just then, an engineer walked slowly through the forest. He heard a faint noise — a deer was nearby. Soon they could all hear its weak sounds with their ears.

需要圈出的单词为：near、cheerful、engineer、deer、nearby、hear、ears

首先明确volunteers中画线字母组合er所在的发音单元发音为/ɪə/，这是本单元学习的eer、ear字母组合的常见发音，通读全文排查所有包含发/ɪə/音的对应字母组合的单词即可。