SummarizationRead each of the following short paragraphs and complete the phrase or sentence that expresses the main idea of the paragraph. The first letter of the missing word is given before the blank.Paragraph 2.First, they use the sun. Just getting rough direction from the sun is easy. It rises somewhere toward the east and sets somewhere toward the west. Getting accurate direction from the sun takes more care. You need to pay attention to the time of the year. Then you need to watch the path of the sun closely at each hour of the day. To tell direction accurately from the sun, a person needs to know the exact time.2.To j_______directions by the sun.
【正确答案】：judge
【题目解析】：P181
