家庭是社会的基本细胞，是人生的第一所学校。习近平总书记在羊年新春贺词中提出，重视家庭建设，注重家庭、注重家教、注重家风，发扬光大中华民族传统家庭美德，使千千万万个家庭成为国家发展、民族进步、社会和谐的重要基点。强调重视家庭文化建设的依据是（　）。
①文化决定人的发展未来和发展高度
②文化对人的影响具有潜移默化的特点
③特定的文化环境和文化活动对人具有重要影响
④文化能够丰富人的精神世界、增强人的精神力量

A．①②

B．②③

C．②④

D．③④

请阅读Passage l。完成第21—25小题。
Passage 1
It's one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it and run away in fear. This has always been thought to be something that is hard-wired into a mouse s brain.
But now Wendy Ingram, a graduate student at the University of California, Berkeley, has challenged this common sense. She has found a way to"cure" mice of their inborn fear of cats by infecting them with a parasite, reported the science journal Nature.
The parasite, called Toxoplasma gondii, might sound unfamiliar to you, but the shocking fact is that up to one-third of people around the world are infected by it. This parasite can cause different diseases among humans, especially pregnant women--it is linked to blindness and the death of unborn babies.
However, the parasite's effects on mice are unique. Ingram and her team measured how mice reacted to a cat's urine(尿) before and after it was infected by the parasite. They noted that normal mice stayed far away from the urine while mice that were infected with the parasite walked freely around the test area.
But that's not all. The parasite was found to be more powerful than originally thought—even after researchers cured the mice of the infection. They no longer reacted with fear to a cat's smell,which could indicate that the infection has caused a permanent change in mice's brains.
Why does a parasite change a mouse's brain instead of making it sick like it does to humans?
The answer lies in evolution.
"It's exciting scary to know how a parasite can manipulate a mouse's brain this way," Ingram said. But she also finds it inspiring."Typically if you have a bacterial infection, you go to a doctor and take antibiotics and the infection is cleared and you expect all the symptoms to also go away."
She said, but this study has proven that wrong."This may have huge implications for infectious disease medicine."

The experiment found that mice infected with toxoplasma gondii__________.
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A．stayed far away from cat's urine
B．moved around the area freely and tearlessly
C．because more sensitive to cat's smell
D．were more afraid of cats

综合实践活动的目的主要是引导学生在实践学习中获得积极体验和丰富经验，形成对自然、()和自我之内在联系的整体认识。

A.学校
B.家庭
C.社会
D.个人

图1是CO2浓度和光照强度对大棚内某种蔬菜光合作用强度的影响曲线图。分析曲线可得出的结论是（ ）。

A.CO2浓度高，光补偿点高
B.CO2浓度低，光饱和点低
C.光照强度大，光合作用强
D.CO2浓度高，光合作用强