当前，部分中学生在日常生活消费中出现了追求名牌的风气。针对这种现象，正确的态度应

当今世界仍不太平。美俄搏弈导致乌克兰局势持续动荡。美国实施亚太再平衡战略导致东海和南海地区局势紧张。利比亚民兵组织在混战，索马里海盗仍猖獗……。这说明

A．当今世界，威胁和平的因素依然存在

B．经济发展是和平的前提条件

C．经济全球化政治多极化趋势不断发展

D．国际竞争关键是科技的竞争

可承担单跨100m及以下桥梁工程的施工的企业包括()。

A.公路工程施工总承包特级企业 

B.桥梁工程专业承包一级企业 

C.桥梁工程专业承包二级企业 

D.桥梁工程专业承包三级企业 

E.公路丁程施工总承包一级企业

三个容器中分别盛有H₂、CH₄、O₂，已知三个容器中气体的温度、密度都相等，下列说法正确的是( )

A．三种气体质量相等

B．三种气体的物质的量之比为16∶2∶1

C．三种气体压强比为16∶2∶1

D．三种气体体积比为1∶8∶16

Teaching is more than leadership. Some of the teacher’s time and effort is directed toward instruction, some toward evaluation. But it is the teacher as a group leader who creates an effective organizational structure and good working environment so that instruction and evaluation activities can take place. A group that is totally disorganized, unclear about its goals, or constantly fighting among its members will not be a good learning group. The leadership pattern includes helping to form and maintain a positive learning environment so that instruction and evaluation activities can take place.

On the first day of class, the teacher faces a room filled with individuals. Perhaps a few closely united groups and friendships already exist. But there is no sense of group unity, no set of rules for conduct in the group, no feeling of belonging. If teachers are successful leaders, they will help students develop a system of relationships that encourages working together.

Standards and rules must be set to keep order, make sure of justice and protect individual rights, but do not contradict school policy. What happens when one student hurts another’s individual rights? Without clear regulations agreeable to the students and teachers, the classroom can become chaotic. Students may break rules they did not know existed. If standards are set without participation from the class, students may spend a great deal of creative energy in destroying the class environment or finding ways to break rules.

No matter how skillful the teacher is in uniting students and creating a positive atmosphere, the task is never complete. Regular maintenance is necessary. Conflicts arise. The needs of individual members change. A new kind of learning task requires a new organizational structure. Sometimes outside pressures such as holidays, upcoming tests or sport competitions, or family troubles cause stress in the classroom. One task for the teacher is to recreate a positive environment by helping students deal with conflict, change, and stress.

小题1:The underlined word “maintain” in Para.1 probably means_______.

A．keep

B． build

C．recreate

D．evaluate小题2:According to the author, the teacher should _______.

A．free students from outside pressures

B．set the standards and rules on his own

C．be responsible for a well-organized class

D．focus more on instruction and evaluation小题3:From the passage we can learn that ______.

A．rules cannot be changed once they’re formed

B．outside pressures can not cause tension among students

C．if the teacher well unites his students, he then will finish his task

D．if rules are not acceptable both to students and teachers, the classroom can be a mess小题4:What is the author’s main purpose of writing the passage?

A．To provide information for teaching.

B．To show the importance of teaching a class.

C．To study the teacher’s behavior in the classroom.

D．To compare the teacher’s behavior with the students’ in class.

颅内压增高产生呕吐的原因是（）。

A.剧烈头痛

B.脑膜受刺激

C.进食后胃部不适

D.脑缺血、缺氧

E.影响到延髓、前庭和迷走神经