试题题干
Translate the following sentence into Chinese.
When the sky is clear, the sun and the stars help to guide the course. If they are followed one is saved from traveling in a circle, as the lost are pretty sure to do in a dense forest.
参考答案
试题解析
考点：guide the course 指引方向；travel in a circle 绕圈子；a dense forest 在密林中。
句子结构：第一句中When引导时间状语从句，主句为the sun and the stars help to guide the course。第二句中If引导条件状语从句，主句为one is saved from traveling in a circle。