(14分)读图18，回答问题。 (1)判断l951～1981年地表温度距平与寒
题型：综合
问题：
(14分)读图18，回答问题。
(1)判断l951～1981年地表温度距平与寒潮频次之间的关系，并解释原因。
(2)说出寒潮对我国北方农作物产生危害的主要季节，并分析原因。
题型：综合
请从下面方框中选择适当的单词或短语,并用其正确形式填空.
come to life, get close to, variety, be based on, advance, profit, charge, test, settle, involve, name after, up-to-date
1. Our school is famous all over China. The school headmaster has ________ ideas on education.
2. Scientific knowledge has greatly ________ since the 16th century.
3. It would be difficult not to ________ the child's father in the arrangements.
4. The hotel ________ me ＄30 for a room for the night.
5. You will find it hard to ________ the tiger to watch their actions.
6. When the girl ________ again, she found herself lying in a hospital bed.
7. He ________ his daughter Rachel ________ his grandmother Rose Stevens.
8. You don't expect to make much ________ within the first couple of years of setting up a company.
9. The girls who attend the performance come from a ________ of backgrounds.
10. Many Native Americans were killed during the ________ of the American West 
by Europeans
in the nineteenth century.
11. The film ________ a short story by Thomas Mann.
12. She had to take a ________ before she was admitted into the key middle school.