从种子的萌发到幼苗的生长过程中，体内储存的有机物会发生规律性的变化，正确反映有机

记叙文内容很复杂，除人物传记、山水游记、亭台楼阁记外，其他记叙器物杂事而不易归类的文章，都可归入其他杂记一类。如清代魏学伊的《（）》、（）的《病梅馆记》等名篇。

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Being organized is an important skill for school and life．When you’re well organized, you can stay focused, instead of spending time hunting things down．  71   For schoolwork, it means having one notebook or place where you store all your assignments, so you know what you have to do and when．Keeping labeled folders（贴有标签的文件夹） for handouts（课堂讲义）and keeping all your schoolwork neat and in a specific place—these are the main parts of organization．

For home stuff, being organized means having a place to put your things and putting them back as you go．  72    It means keeping your schoolbag, your shoes, and your clean underwear in the same places so you always know where to find them．

Planning is part of being organized, too．  73    Calendars, lists, and schedules can help you plan．You can buy or draw a calendar and keep it near your workplace．Making a schedule or “to-do” list for yourself is a good idea．Looking at your list helps you keep track of what you need to do． 74    Check off things when you’ve done them．Use your list to help you decide which thing is most important to work on first．

75    But once you’re organized, it feels great．The less time you spend hunting around for things or panicking about homework, the more time you have for better things, like reading a good book or playing．

A．Planning means deciding what you will do and when you will do it．

B．First, you should get your schoolwork organized．

C．Add new things as you get assignments．

D．You will benefit a lot from a good habit． E．What does it mean to be organized?

F．It takes some extra efforts to organize yourself and your stuff．

G．It means hanging your coat up instead of dropping it on the floor or throwing it on a chair．

某化学活动小组的学生小明要用实验证明碳酸（二氧化碳的水溶液）具有酸性，而二氧化碳不具有酸性．其实验方法是：A、向一只洁净的干燥的集气瓶中放一朵用石蕊溶液染成紫色的干燥的小花，向集气瓶加入水，观察现象．B、然后往集气瓶中通入二氧化碳气体，再观察现象：

（1）上述B操作中可观察到紫色小花变成______色；若将小花取出小心加热，可观察到的现象是______，原因是______．

（2）小明由此实验能得出满意的结论吗？若能，请你说明理由．若不能，请你再设计一个方案加以证明，简述实验步骤，实验现象及结论；

下列原料不宜在微波炉中加热的是（）。

A.真空食品

B.罐头食品

C.水煮食品

D.面点制品

总扬程是从吸水井面到排水管出口中心的垂直角度。