Unit 2 Section Ⅲ
Ⅰ.语法填空
1．If traffic moves at low speeds，the number of accidents is cut __down__.
解析：cut down“减少”。
2．It is known to us that doing eye exercises __benefits__ (benefit) our eyes，and that is to say，our eyes can benefit __from__ doing eye exercises.
解析：句意：我们都知道做眼保健操对我们的眼睛有益；也就是说，我们的眼睛可得益于做眼保健操。第一空现在分词短语，谓语动词用单数。第二空benefit from得益于……。
3．Da Peng was heavily __in__ debt at that moment，but he soon was out of it by working hard.
解析：句意：那时大鹏陷入严重的债务危机中，但是通过努力工作他很快摆脱了债务困扰。由后半句
