问题 实验题

请根据在“我们吸入的空气和呼出的气体有什么不同”的活动与探究内容,填写下表

探究目的实验操作实验现象得出结论
比较空气与呼出气
体中含二氧化碳气体的多少
取一瓶空气,一瓶
呼出的气体,各滴
入澄清的石灰水,振荡 
空气中氧气的含量
比呼出气体中的多
被呼气的干燥玻璃片变
的得模糊,玻璃片上
有一层水雾,放置在空
气中的玻璃片没有水雾出现

答案

阅读理解
阅读理解

                                                           PowerSchool
                                                            Daily Bulletin
               Valley Christian High School Bulletin for Saturday, March 10, 2012
     Literature Club Do you love reading? Do you wish you had someone to talk with about your favorite books? If this is you, come down to Room 129G on Thursday the 15th, and come to the Literature Club's first meeting. Literature Club is a fun way to read and discuss today's literature with a group of people your age who love the same books as you. Don't miss out on the chance to hang out with other book worms.
     2013 Africa Trip There is a mandatory Africa trip 2013 Meeting on Monday March 12 in Room 109 at lunch. If you want to go on the trip next year please attend this informational meeting!
     National Spanish Honor Society Attention all National Spanish Honor Society scholars: come to the Initiation Celebration in your honor on Wednesday March 14 in Room 228 at lunch time. You will receive your membership certificates and honor cords.
      Fashion Show Get your tickets to the first annual fashion show on March 25 at 3:00 in the Conservatory. Don't miss seeing your favorite seniors walk the catwalk. All the proceeds (收入) will go to the Senior Legacy Gift Fund. You can purchase tickets at vendini.com or at the box office starting tomorrow and the next two weeks at lunch. The cost is $30.00 which includes the show and a wonderful reception (招待会) afterwards.
1. The Initiation Celebration held by National Spanish Honor Society ________.
A. is intended for Spanish students
B. aims to attract more people to it
C. is intended for its new members
D. aims to help people learn Spanish
2. We can infer that the fashion show is held mainly to _________.
A. promote fashions
B. raise money
C. satisfy the students
D. give a reception
3. You can exchange ideas with others _________.
A. at the Literature Club's meeting
B. at the fashion show 
C. at the Initiation Celebration
D. at the 2013 Africa trip meeting
多项选择题