Ⅰ. 单项选择（20分）
1. ［10·广州中考］The teacher speaks very loudly _____ all the students can hear her.
A. so that B. because
C. since D. when
【解析】选A。so that 表目的，意为“为了……，以便……”。句意：老师大声讲以便所有的学生都能听到。
2. They’re looking forward _____ the film.
A. to saw B. to seeing
C. see D. to see
【解析】选B。look forward to+doing sth. “期望干某事”，to为介词，故选B。
3. He gave his life _____ the rare wild animals.
A. to save B. saving
C. to saving D. save
【解析】选C。give one’s life to sb. /sth. /doing sth. “献身于……”，故选C。
