文档介绍：天津市河东区
2019-2021年三年中考一模英语试卷分类汇编
任务型阅读
2021年天津市河东区初中毕业生学业考试模拟试卷（中考一模）英语试题
七、任务型阅读（本大题共5小题, 每小题1分, 共5分）
阅读下面短文, 根据短文内容完成句子。
Everyone has a different temperament（脾气）. It is usually believed that both genes（基因） and environment may influence people's temperament in different ways.
But Scientists have found that the season of the birth also plays a role. Scientists from Budapest, did a survey among 400 university students. In the study, the students needed to finish some questions to know which of four kinds of temperaments they had. From the questions, scientists found that the students always answered something like "My mood（情绪） often changes for no reason. " and "I love to deal with new projects, even if it is risky. "These answers were then connected with their birthdays.
They discovered that people born in summer easily change between sad and happy moods compared with people born in winter. Those who always feel positive（积极的）mostly were born in spring and summer. The study also found that those born in fall less probably in a mood of sadness which might easily ask them to cry. Scientists say that this may be because the seasons have an influence on certain chemicals（化学品） in the human body. And the chemicals are important to control people's moods even in adult life.
71. Both genes and environment may influence people' temperaments ________________.
72. Scientists hav