“近朱者赤，近墨者黑”，这句话反映了下列哪种因素对人的发展的影响？（） A.环境

Be quiet-Let me _______ on my homework.[ ]

A. fasten              

B. concentrate        

C. fix              

D. put

Recently, an Internet game has become a new fashion among young office workers and students. People can “farm” on a piece of “land” and “grow”, “sell” or even “steal” “vegetables”, “flowers” and “fruits” on the Net. They can earn(挣) some e-money and buy more “seed”(种子), “pets” and even “houses”.

Li You from Xi’an said people in the city get tired from work, they go to their own farms, take care of their crops(庄稼), and pull out weeds(杂草). It is glad to forget about the pressure in cities.

Li Bu grew up in a small village, and then he went to a city, but now he misses the life in the village and “Happy Farms” makes the country dream possible in his office. He said every time he sees his crops, dogs, and grasses, he feels like he is in the village again. When he is working on his farm, he can feel the breath of nature, and get happiness from farming and harvesting(收获).

Li Lei enjoys putting some “bugs”(虫) in my friends’ garden and they’ve become closer because of the game. Having fun together is the most exciting thing about it.

Li Hong said it was just a waste of time. Teenagers spend so many hours on it and they can’t focus on their study. 

小题1:From the passage, we know that “Happy Farms” is a ______game.

A．boring

B．popular

C．dull

D．famous小题2:According to the passage, people can’t _______things in this game.

A．borrow

B．grow

C．steal

D．sell小题3:Among the four people, ________ likes the game while _______dislike the game.

A．Li You; Li Bu

B．Li Bu; Li Hong

C．Li Hong; Li Lei

D．Li Lei; Li You小题4:From Li Bu’s words, we can guess that he’s most probably ___________.

A．a student

B．a farmer

C．an office worker

D．a thief小题5:Which is NOT the reason why people like the game?

A．They are longing for country life.

B．They can have fun with friends.

C．The game relax people and give them a new experience.

D．They are confident enough to face the real world.

某同学不小心掉了半块饼干在地上，5min后发现饼干上聚集了许多蚂蚁．那么5min前这些蚂蚁离饼干的最远距离为多少呢？确定这个最远距离的关键是测出蚂蚁的爬行速度．某班同学以小组为单位进行科学探究活动：估测蚂蚁的爬行速度，下表是各小组的实验探究方案和记录数据：

组别	实验探究方案	平均速度V（cm/s）
1	用面包吸引蚂蚁，是它在二纸槽之间运动	1.20
2	让沾有墨水的蚂蚁在纸槽内运动	0.30
3	让直玻璃管内的蚂蚁向另一端运动	1.04
4	让蚂蚁在盛有粉笔灰的纸槽内运动	0.45
5	让蚂蚁在塑料吸管内爬行，同时点燃蚂蚁身后的塑料吸管	2.40

（1）在表中各小组最后测得的蚂蚁爬行速度各不相同，产生此现象的可能原因是什么？______

（2）5min前蚂蚁离开饼干的最远距离是多少？计算说明．

股票体现的是（）。

A.所有权关系

B.债券债务关系

C.信托关系

D.契约关系

特异性投射系统

A．投射到大脑皮质的广泛区域

B．无特定的感觉

C．维持大脑皮质兴奋

D．激发整个大脑皮质产生传出神经冲动

E．只投射到大脑皮质的相应感觉区