中国第一航母———“辽宁舰”的满载排水量为67500t，它满载时排开海水的体积为

In the opinion of many people, the two­parent family is the correct way to raise children. Traditionally, this has been as the most natural way, but single­parent families have had to face prejudices(偏见) against their life­style. However, the single­parent family is the fastest growing type of family. In the United States, a national survey showed that at least 50% of children will be members of a single­parent family. So we think it is important to throw prejudices away and to see the advantages of single­parent families.

When compared to two­parent families, single­parent families are usually at a disadvantage in some ways. They are often in short of money, and children receive less attention. What’s more, single parents can find themselves under too much pressure(压力) of both work and home. Despite(尽管) these disadvantages, it is possible for single­parent families to look for support from friends, schools, communities or other organizations. They need to remember that nobody can do it alone.

Surprisingly, single­parent families also have some advantages over two­parent families. Single parents have greater flexibility(灵活性) in spending time with children, because they don’t have to consider the needs of a husband or wife. So they can develop closer relationships with their children. Another advantage comes from the fact that single parents often work together with their children to solve problems, which makes children feel more needed and valued.

It’s important to remember that single­parent families have, until now suffered prejudices from some people. They think that it’s easier for the children in single­parent families to drop out of school in teens, and to be jobless in their early twenties. But, with the support from friends, schools and communities, single­parent families become more accepted by society, and this situation is certain to improve. In the future we will probably see these prejudices disappear.

小题1:What does the writer mainly tell us in Paragraph 1?

A. People shouldn’t have prejudices against single­parent families.

B. The single­parent family is not good for raising children.

C. The two­parent family is the correct way to raise children.

D. 50% of children will be members of a single­parent family in the USA.

小题2:Which disadvantage of single­parent families is NOT mentioned in Paragraph 2?

A．They are often in short of money.

B．Children may receive less attention.

C．Children also suffer from the prejudice.

D．Parents are under pressure of both work and home.小题3:How can single parents make their children feel more needed and valued?

A．Don’t consider the needs of others.

B．Pay more attention to their children.

C．Develop closer relationships with their children.

D．Discuss and solve problems together with their children.小题4:Which of the following may be the best title for this passage?

A．Advantages and Disadvantages

B．Changing Views on Single­parent Families

C．Best Life­style for Children

D．Comparing Two Types of Family

阅读下面一首词，然后回答问题。（6分）

满江红·登黄鹤楼^①有感

岳飞

遥望中原，荒烟外、许多城郭。想当年，花遮柳护，凤楼龙阁。万岁山^②前珠翠绕，蓬壶殿^③里笙歌作。到而今、铁骑满郊畿，风尘恶。   兵安在?膏锋锷^④。民安在?填沟壑。叹江山如故，千村寥落。何日请缨提锐旅，一鞭直渡清河洛。却归来、再续汉阳游，骑黄鹤。

[注]①黄鹤楼：故址在今武汉长江大桥桥头，因相传仙人乘黄鹤过此而得名。②万岁山：北宋京城汴梁内皇帝营造的精美宏伟的假山。③蓬壶殿：汴梁内宫殿名。④膏锋锷：血肉浸透刀剑。

小题1:本词上片用了多种表现手法，请选择一种作具体赏析。（4分）

小题2:简要归纳本词的思想感情。（2分）

（12分）某研究性学习小组同学对Na₂CO₃溶液与CuSO₄溶液反应生成沉淀的成分产生了分歧．

【猜想】

小明认为只含CuCO₃，小刚认为只含Cu（OH）₂，小林认为是CuCO₃和Cu（OH）₂的混合物，

（1）小明同学的化学反应方程式可表示为______．

（2）小林提出只要在沉淀中加一种试剂即可知道小刚的结论是错误的，该试剂   是______．

【查阅资料】

资   料：Na₂CO₃溶液与CuSO₄溶液反应会产生CuCO₃，也可能生成Cu（OH）₂沉淀．

【设计方案】

为了进一步确证该沉淀的组成，设计了如下的实验方案：

取上述烘干后的沉淀样品10g，进行如下图所示的实验．

【说明】

（1）碱石灰是CaO与NaOH 的固体混合物．

（2）操作步骤：

①连接好装置，检查气密性；

②打开弹簧夹C，在A处缓缓通入一段时间空气；

③称量F的质量；

④关闭弹簧夹C，慢慢滴加稀硫酸至过量，直至D中无气泡冒出；

⑤打开弹簧夹C，再次缓缓通入一段时间空气；⑥再次称量F的质量，得前后两次质量差为1.1g．

【问题探究】

（3）写出图中标有序号的仪器的名称：①______②______

（4）B装置的作用是______，

G装置的作用是______．

（5）反应结束后，打开弹簧夹C，再次缓缓通入一段时间空气，目的是______．

（6）若没有E装置，则测得沉淀样品中CuCO₃的质量会______．（填“偏大”或“偏小”）

【数据计算】

（7）CuCO₃的质量分数？（在下面空白处写出计算的过程）（3分）

（8）通过上述计算，确认沉淀样品组成是______．

明代一些名门望族的家训中出现以下说法：“男子要以治生为急，农工商贾之间务执一业”，“民家常业，不出农商”。这反映出

A．资本主义生产关系萌芽的出现

B．纲常礼教的愈趋严苛

C．当时社会在抑商问题上有松动倾向

D．农耕经济衰退导致人们就业艰难

共同为循环经济的发展提供技术支持的是（）

A、替代技术 

B、减量技术 

C、再利用技术 

D、资源化技术