_ 是地球上所有生物共同的家园，它的范围包括大气圈的底部、水圈的大部和_____

神舟八号无人飞行器，是中国“神舟”系列飞船，也是中国神舟系列飞船进入批量生产的代表。神八已于2011年11月1日5时58分10秒由改进型“长征二号”F遥八火箭顺利发射升空。升空后，“神八”已于2011年11月3日1时36分与此前发射的“天宫一号”实现交会对接，并将和此后的神舟九号、十号一起组成中国首个空间实验室。此次成功对接，使中国载人航天技术水平跃上一个新的台阶。飞船完成任务后返回地面，要在A点从圆形轨道Ⅰ进入椭圆轨道Ⅱ，B为轨道Ⅱ上的一点，如图所示，关于神州八号的运动，下列说法中正确的有

A．在轨道Ⅱ上经过A的速度小于经过B的速度

B．在轨道Ⅱ上经过A的动能小于在轨道Ⅰ上经过A的动能

C．在轨道Ⅱ上运动的周期小于在轨道Ⅰ上运动的周期

D．在轨道Ⅱ上经过A的加速度小于在轨道Ⅰ上经过A的加速度

第Ⅱ卷

第三部分：写作(共两节，满分35分)

第一节任务型读写(共10小题；每小题1分．满分10分)

阅读下面短文，根据所读内容在表格中的空白处填入适当的单词。

注意：每个空格只填一个单词。

Do you often see silly words or drawings scratched onto the desks in your classroom? Have you ever found chewing gum on the floor of your classroom or around the campus? How many times have you seen broken windows in the classroom and school buildings? This is vandalism，the destruction or damaging of public property for no obvious reason．

Vandalism in schools is becoming a growing problem，and it is costing us more than money．It is expensive to repaint the desks，clear them of chewing gum and repair school furniture．Moreover，it costs us our sense of self-respect and feeling of pride in our school．

Many students see this damage and lose some pride in their school．

How，then，can we prevent vandalism in schools? First of all，we need to make students realize the importance of taking care of public property．School property should be treated with care so that it can be used by all the students．

Secondly，we should learn to obey school rules and regulations．These rules and regulations are there to look after both the students and the schools．Whenever we see any acts of vandalism，we need to remind the people of the rules and try to prevent these acts from happening．Thirdly，anyone who vandalizes school property should receive some kind of punishment．For example，if someone has torn a page from a library book，he or she would have to carefully tape the page back into the book．Such punishment is not harsh，but can make them know their misbehavior．

Vandalism costs schools money that could be better spent educating students，and it harms students’pride in their school as well．If we educate people about vandalism and work to prevent it from happening，then we will begin to see cleaner schools and happier students．

列入《两用物项和技术进出口许可证管理目录》中的货品通过我国的广州转运至巴基斯坦，进出口货物的代理人或承运人，无需向广州海关申领两用物项和技术进出口许可证。 ( )

在银行承兑汇票中，出票人是第一责任人。

具有非特异吞噬功能

A．NK细胞
B．巨噬细胞
C．B细胞
D．Th细胞
E．Tc细胞