为未成年人指定监护人时，如果该未成年人已年满（）周岁，应征求其本人意见。 A．16

“树叶繁茂，寻不到完全相同的两片树叶。”这主要告诉我们  [ ]

A．人是否优秀是天生的          

B．生命属于我们只有一次

C．每个人的生命都是独特的             

D．如果努力找，是能找到的

（1）化学小组的同学在做镁条在空气中燃烧实验时，发现生成的白色固体中还夹杂着少量的淡黄色的固体．

【提出问题】为什么会生成淡黄色固体？

【查阅资料】记录了下列几种物质的颜色：

物质	MgO	MgCl2	Mg3N2	Mg（NO3）2	MgCO3	Mg（OH）2
颜色	白色	白色	淡黄色	白色	白色	白色

小红同学认为不必查阅氯化镁的颜色，理由是：______．

【提出猜想】分析资料小红认为淡黄色固体可能是和空气中的______反应生成的．

【实验探究】小红设计实验来验证自己的猜想，他的方案可能是：______．

【实验结论】根据小红的实验结果，写出镁条在空气中燃烧的两个化学反应方程式：

①______； ②______．

【反思与评价】通过上述实验，你对燃烧有什么新认识______．

（2）镁条还可以在二氧化碳气体中燃烧生成碳和氧化镁．该反应的类型是______，

请计算：24g镁条在二氧化碳中完全燃烧可以生成多少克氧化镁？

Some teachers are unforgettable. They lead by example and never lose their smile. They change lives. Eileen Madden is one of them. Her students must think she was born with an eraser and a piece of chalk in her hand.

“It’s a joy to get up early every morning to be the first one here,” say the 55-year-old Holy Ghost School third grade teacher. Madden arrives shortly after 6 am to prepare her classroom and work on the school breakfast program.

“My family all went to St. Teresa’s School,” she says. “I always said, ‘One day, I’m going to come back and get one of those big desks.’”

With a watchful eye always on the lookout for “one of those big desks”, Madden returned to St. Teresa after graduating from college and taught second grade at the Olneyville neighborhood elementary school until it was burnt in a fire in 1990 and had to be closed. Madden then went to Holy Ghost School where she started as a second-grade teacher and then moved up one grade level.

“I take care of setting up and serving breakfast,” she says. “In winter it is still dark when I arrive here.” Madden praises Holy Ghost School Principal Carol Soltys and the school’s workers for their continued support. “It’s a family,” she said.

Her class is small this year with 15 students, including some from the Dominican Republic, Puerto Rico, Costa Rica, Haiti, Guatemala, Nigeria and Ghana. Madden admits that she’s encouraged by her former students, now grown-ups, who want their own children to enjoy a similar experience in a safe, good environment. “They tell others, ‘I send my child to Eileen Madden’s School, ’” she adds.

小题1:What does the underlined sentence in Paragraph 1 suggest?

A．Eileen Madden was very smart as a child.

B．Eileen Madden is a very good teacher.

C．Eileen Madden has done a lot for her students

D．Eileen Madden always has an eraser in her hand.小题2:We can learn from paragraph 2 that Eileen Madden __________.

A．is in her late fifties now.

B．always teaches Grade 3

C．often arrives at school very early.

D．cooks breakfast for all her students by herself.小题3:What does Eileen Madden most probably think of the workers of Holy Ghost School?

A．Lazy but kind

B．Careful but helpless

C．Hard to get along with

D．Kind and helpful.小题4:The last paragraph suggests that ______________.

A．Eileen Madden often gives lessons to small classes.

B．Eileen Madden is remembered by all her former students.

C．Eileen Madden thinks her former students think too highly of her.

D．Eileen Madden’s former students are very happy to let her teach their children.小题5:What is implied in the passage?

A．Holy Ghost School is a very small school.

B．St. Teresa’s School will be open again soon.

C．Eileen Madden decided to be a teacher when she was young.

D．Eileen Madden was very happy to leave St. Teresa’s School.

免予党纪处分的条件有哪些？

下面哪种物质可用作凝聚剂（）.

A、明矾

B、食盐

C、粘土

D、有机物