泌尿系统主要由肾脏，输尿管，____和尿道组成；健康人每天形成原尿约150L，而每天排出的尿液约为____ L，人的汗液是在汗腺中形成的，汗腺包括____和导管两部分．

    I have a twin sister, Jenny. She has ____（长的）hair than me. Many people think ____（我们）must have a lot of things in ____（普通的，常见的）. That's not true. Jenny is creative. She won the best ____（奖项）in the school talent show. She likes making friends, so she is more ____（外向的）. But I like staying at home. And I watch TV ____（两次）a week because I have to go to school every day. I always get better ____（分数）but she is much less hard—working. So maybe I should help her. ____（然而）, we also have some similarities. We ____（都）like sports and going shopping, so we can talk about and ____（分享）everything. I love my sister.

曾经“气蒸云梦泽，波撼岳阳城”的洞庭湖，如今却遭遇“守着洞庭湖，群众没水喝”的尴尬。据调查，洞庭湖水质恶化的“罪魁祸首”是农业春风满面污染。洞庭湖区规模化养猪场 、养鱼场 大量增加，而相关环保措施又未跟上，是造成洞庭湖水污染的主要直接原因。试分析洞庭湖水污染带来的严重影响，并为防治湖水污染提供合理化建议。