某地理兴趣小组通过观察夏至日太阳与日影的规律测算当地的经纬度，具体实验过程与结论如下：当地当日日出时间是5：30（北京时间），日落时间是19：30（北京时间）；北京时间8：00测得目标物的日影长L影=L目标物×，依据如上信息，完成下列各题。
x
…
﹣1
﹣ 12
0
12
1
32
2
52
3
y
m
14
−74
﹣2
在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。1. Tony is really p____. He keeps waiting outside the house for almost three hours.2. The f____ stood on the board, laughing happily, because they caught lots of fish this time.3. When I heard of my grandma's d____, I couldn't help crying.4.Parents hope their children can do best in the class, so they usually e____ too much of their children.5. There is nothing in the box. It's e____
，依据如上信息，完成下列各题。，依据如上信息，完成下列各题。