将一定量CO2通入下列溶液中,可能变浑浊的是() ①CaCl2稀溶液②澄清石灰水

题型:选择题

问题:

将一定量CO2通入下列溶液中,可能变浑浊的是(     )

①CaCl2稀溶液            ②澄清石灰水③饱和Na2CO3溶液     ④稀H2SO4

A.①②

B.②③

C.③④

D.①②③

考点:元素的性质生活中的元素(常量元素、微量元素)
题型:选择题
已知倾斜角为α的直线l与直线x-2y+2=0平行,则tan2α的值为(  )
A.
4
5
B.
3
4
C.
4
3
D.
2
3
题型:选择题

什么是函数关系和相关关系?两者有什么联系和区别?

题型:选择题

阅读理解。

                                                What makes a house a home?

     Not size, of course. I've been in some of the grandest houses in America, and it's readily apparent no

one lives there. Earlier this year, I had dinner in a mud hut in Ethiopia, where we sat on chairs next to the

hostess' bed -a home that had more warmth than any house I've been in since.

     Now John Edwards is exploring what makes a house a home in his just-released Home: The

Blueprints of Our Lives. There Edwards writes, " This is a book about homes, the values they rest on,

the dreams they are filled with, and the people they have shaped. The houses and circumstances are

different, but much of what you find inside will be familiar."      

     Whether you're sitting in an airport right now, waiting to fly to your childhood home for Thanksgiving,

or in your own home waiting for the relatives to arrive, you know what he's talking about.

     We've lived in our townhouse for 21 years. The loose windows that make noise in the wind. The

fireplace so shallow it holds only one log. The kitchen window that offers a view of the world passing by.

It's where friends sit on the kitchen counter drinking wine while dinner is being fixed.I lived there for only

18, but it will always be my true home. Even the lamp in the west living room window, which I could see

far down the road when driving home late at night, still shines.

     While all this talk about childhood memories can be warm and comforting, home is whom you're with,

not where you are. As Edwards writes, "Home is family. Home is safety. Home is faith."

Happy homecoming.

1.What would be the best title for the text?  

A. Home Means Everything      

B. What's Inside Makes Us Feel at Home

C. Home: The Blueprints of Our Lives    

D. The Importance of the Home

2.The purpose of the second paragraph is to __

A. mean the author likes living in grandest houses

B. prove the author got along well with the hostess

C. mean the feeling of home isn't related to the size

D. show the author's different feelings about houses

3. About the book Home: The Blueprints of Our Lives, we know that __

A. it was the description of Edwards' houses

B. it is mainly about houses

C. it helps us understand the concept of home

D. it was written by the author of the text

4.What did the author mainly mean when he mentioned the loose windows and the shallow fireplace ?

A. His house was too old to live in.

B. He missed the feelings of home.

C. He hated living there.

D. He missed his old friends too much.

5.It can be inferred according to the text that __

A. the author's family were very rich   

B. every happy home is the same

C. the author has been living a hard life  

D. the author and Edwards hold similar ideas

题型:选择题

党的十八大报告提出,要全面落实科学发展观,努力建设美丽中国,实现中 * * 永续发展。阅读材料,回答问题。

材料一:十八大报告指出:“科学发展观是马克思主义同当代中国实际和时代特征相结合的产物……把我们对中国特色社会主义规律的认识提高到新的水平……是指导党和国家全部工作的强大思想武器。”有人这样评价:科学发展观是党理论创新的结晶,彰显了党的理论自信,也展示了党的理论之美。

材料二:十八大报告首次提出“美丽中国”理念——“促进生产空间集约高效、生活空间宜居适度、生态空间山清水秀,给自然留下更多修复空间,给农业留下更多良田,给子孙后代留下天蓝、地绿、水净的美好家园”。有人这样评价:“美丽中国”是一个大智大慧的构想,是实事求是的构想。没有丝毫的矫揉造作,没有半点的故弄玄虚,也不是迁就的政治口号。

(1)结合材料一,请从“探索世界与追求真理”的角度分析科学发展观展示的“理论之美”。(9分)

(2)结合材料二,运用政治生活知识分析说明中 * * 党怎样才能领导人民打造出“美丽中国”。(9分)

题型:选择题

每个人在社会上生活,每天都要与人交往,经常会遇到些别人对自己无礼、无理的事,碰到些别人需要自己理解、帮助、支持的事。在这些事情面前,是宽宏大量、与人为善,还是小肚鸡肠、与人为恶,不仅是一个人道德品质修养高低的表现,而且直接影响到自己的精神世界,影响到自己的身体健康。 

自古以来,人们就把善良推崇为美德,并且把“乐善好施”视为养生的灵魂。名医张景岳就曾说过:“欲寿,惟其乐;欲乐,莫过于善。”这是很有道理的。现代医学认为,人的心理活动和人体的生理功能之间存在着内在的紧密联系,良好的情绪可以使生理功能处于最佳状态,反之则会降低或破坏某种机能,引发各种疾病。而善良是美好心境的“兴奋剂”。美国耶鲁大学病理学家曾对7000多人进行跟踪调查,结果表明,凡与人为善的,其死亡率明显偏低;而与人不睦、遇事斤斤计较的人,不仅会影响身体健康,导致心理紊乱,出现变态心理,而且会引发失眠、健忘、不思饮食、精神恍惚、胸闷、头疼等病症。有关长寿老人的研究也表明,长寿者多是敦厚、善良的人。 

社会心理学家也认为:一个人内心充满善意,多行善事,心中必然会涌起欣慰之感。一个人坚信自己活在世上于他人有益,是他人生活的支柱,这就会成为鼓舞自己的一种精神力量。这诚如马克思所言:“如果一个人只为自己而活着,那么他的生命是黯淡的;人们只有为同时代人的完美,为他们的幸福而生活,才能使自己的生活具有意义。”这种富有意义的“善行”,不仅是完善自我的“催化剂”,而且是养生健身的“营养素”。因此,每个人都应该十分注意加强这方面的道德修养。

“善行”是养生健身的营养素,这说明养生的根本在于()。

A.多吃有营养的东西

B.多为他人做好事

C.完善自己的生活信念

D.培养良好的道德修养,保持乐观的精神状态

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