核心家庭是指两代人组成的家庭，核心家庭的成员是夫妻两人及其未_爱下问搜题

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问题单项选择题

核心家庭是指两代人组成的家庭，核心家庭的成员是夫妻两人及其未婚子女。扩大家庭是由有共同血缘关系的父母和已婚子女的多个核心家庭组成的家庭模式。联合家庭是指有血缘关系的两个或多个性别相同的人及其配偶和子女所组成的家庭，或者两个以上同辈兄弟姐妹结婚后所组成的家庭。

根据上述定义.下列说法正确的是（）

A.老赵夫妇与两个儿子、儿媳和孙子、孙女生活在一起，他们组成的既不是核心家庭，也不是扩大家庭和联合家庭

B.刘先生夫妇在一次车祸中丧生，他们年幼的儿子从此后与爷爷奶奶生活在一起。他们组成的不是核心家庭

C.小王离婚后与父母生活在一起，他们组成的是核心家庭

D.小李父母双亡，结婚前一直和哥哥、嫂子生活在一起，他们组成的是联合家庭

答案

参考答案：B

解析：

根据定义，

A项，老赵夫妇和已婚子女的多个核心家庭组成家庭，属于扩大家庭，错误；

B项，与爷爷奶奶一起生活不是两代人组成的家庭，不属于核心家庭，说法正确；

C项，小王是离婚后，不是未婚子女，不属于核心家庭，错误；

D项，小李结婚前与哥哥、嫂子住在一起，由于不能确定小李的性别，因此不能确定其是否属于联合家庭，错误。故答案选B。

单项选择题

It was two years ago today that the hunting ban came into force, supposedly ending centuries of tradition. However, the law has been an unmitigated failure-not that either side is shouting about it.
It was a nightmare vision that struck fear and loathing into the hearts of millions. When the hunting ban became law, it was said, 16, 000 people would lose their jobs, thousands of hounds would be put down, rotting carcasses would litter the countryside, hedgerows would disappear, riders would face on-the-spot fines, law-abiding people from doctors to barristers would be dragged from their horses and carted off to prison, while dog owners would be prosecuted if their mutt caught a rabbit.
These were just some of the claims as desperate countryside campaigners battled to save their sport in the lead-up to the hunting ban, which Labour rammed into law using the Parliament Act on November 18, 2004.
For many, the fears were real. Others exaggerated as they fought an increasingly aggressive anti-hunting lobby which had rejected acres of independent evidence affirming that hunting is the most humane way of killing foxes. In the battle to"fight prejudice, fight the ban", every emotive argument was deployed.
For its part, the anti-hunting brigade extravagantly claimed that the ban would put an end to the rich parading in red jackets. A senior Labour MP, Peter Bradley, admitted in this newspaper that it was, as many suspected, about "class war". He lost his seat shortly afterwards. But people in red coats did not disappear.
In fact, none of the forecasts came true. What did happen was something nobody had predicted: the spectacular revival and growth of hunting with hounds. In short, the hunting ban has been a failure.
Today, on the second anniversary of the ban’s coming into force on February 18, 2005, new figures show that participation in the sport has never been higher. It is so cheerful that two new packs have been formed, something that has not happened for centuries.
They include the seductively named Private Pack, set up by the financier Roddy Fleming in Gloucestershire. It operates on an invitation-only basis, a sort of hunting private members’ club. This can only mean one thing: like it or not, hunting is cool. Young people are taking it up, enticed by the element of rebellion and the mystique of what actually happens as hunts attempt to keep within the law.

The word "prosecuted" underlined in Paragraph 4 is closest in meaning to ______.

A．go to court

B．encourage

C．publish

D．prevent

实验题

（13分）某研究性学习小组在网上收集到如下信息：溶液可以蚀刻银，制作美丽的银饰。他们对蚀刻银的原因进行了如下探究：

【实验】制作银镜，并与溶液反应，发现银镜溶解。

（1）下列有关制备银镜过程的说法正确的是。

a. 边振荡盛有2%的溶液的试管，边滴入2%的氨水，至最初的沉淀恰好溶解为止

b．将几滴银氨溶液滴入2ml乙醛中

c．制备银镜时，用酒精灯的外焰给试管底部加热

d．银氨溶液具有较弱的氧化性

e．在银氨溶液配置过程中，溶液的pH增大

【提出假设】

假设1：具有氧化性，能氧化Ag。

假设2：溶液显酸性，在此酸性条件下能氧化Ag。

【设计实验方案，验证假设】

(2)甲同学从上述实验的生成物中检验出，验证了假设1的成立。请写出氧化Ag的离子方程式：。

（3）乙同学设计实验验证假设2，请帮他完成下表中内容（提示：在不同条件下的还原产物较复杂，有时难以观察到气体产生）。

【思考与交流】

（4）甲同学验证了假设1成立，若乙同学验证了假设2也成立，则丙同学由此得出结论：溶液中的和都氧化了Ag。你是否同意丙同学的结论，并简述理由：。