防腐药是指能迅速杀灭病原微生物的药物。

文言文阅读

　　张姓者，偶行溪谷，闻岸上有声甚厉。寻途登岩，见巨蛇围如碗，摆扑丛树中，以尾击柳，柳枝崩折。反侧倾倒之状，似有物捉制之。然审视殊无所见，大疑。渐近临之，则一螳螂据顶上，以刺刀攫其首，攧^①之不去。久之，蛇竟死。视额上革肉，已破裂云。（选自蒲松龄《螳螂捕蛇》）

　　尝见一蜘蛛布网壁间，离地约二三尺。一大蛇过其下，昂首欲吞蜘蛛，而势稍不及。久之，蛇将行矣。蜘蛛忽悬丝而下，蛇复昂首待之。蜘蛛仍还守其网。如是者三四次。蛇意稍倦，以首伏地。蜘蛛乘其不备，奋身飚下^②，踞^③蛇之首，抵死不动。蛇狂跳颠掷，蜘蛛乃啃其脑，果腹而去。（选自薛福成《物性相制》）

　　注：①攧：摔②飚下：带着一股风跳下。③踞：趴。

1．解释下列句子中加横线的词的意思。

⑴闻岸上有声甚厉　闻：_____________

⑵渐近临之　临：___________________

⑶久之，蛇竟死　竟：_______________

⑷尝见一蜘蛛布网壁间　尝：_________

⑸蜘蛛乃啃其脑，果腹而去　去：_____

2．写出下列句子中加粗词的不同意义。

⑴之 ①反侧倾倒之状___________

　　 ②蛇复昂首待之___________

⑵以 ①以刺刀攫其首___________

　　 ②以首伏地_______________

3．用现代汉语写出下列句子的意思。

⑴然审视殊无所见。

______________________________

⑵如是者三四次。

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4．用“／”给下列句子划分朗读节奏。

尝见一蜘蛛布网壁间

5．甲文中的螳螂和乙文中的蜘蛛是怎样杀死大蛇的？请你分别用文中原话回答。

______________________________

6．读了这两则短文后，你从中悟出了什么道理？

______________________________

患者，男，45岁，干咳，痰中带血丝半年，吸烟史20年，体检(－)，胸部X线示右上肺阻塞性肺炎，支气管纤维镜见右上肺叶支气管有菜花样肿块，痰中查到瘤细胞，下列治疗方法中哪项是错误的

A．手术治疗

B．放射治疗

C．抗生素治疗

D．化学药物治疗

E．免疫治疗

二穴均与脐相平的是（）

A.天枢，章门

B.大横、带脉

C.天枢、京门

D.天枢、京门

E.肓俞，维道

定向越野的发展史？

Workforce is defined as the total number of people who are available to work and earn incomes. The definition includes everyone who is employed or seeking paid employment, so it includes employers and the self-employed.

Although the size of the workforce depends a great deal on the size of the total population, there are several other influences which also affect it. The age distribution of the total population has a very marked effect on the available workforce. If the population has a high proportion of very young people or of those too old to work, then the available workforce would be lower than if there were an evenly spread age distribution. If the population grows rapidly from natural increase, i.e., the number of births greatly exceeds the number of deaths, then as the total population increases, the proportion in the workforce declines

Sometimes a population is described as aging, which means that the birth rate is either falling or growing very slowly, and as people retire from the workforce, there are not enough young people entering it to replace those who are leaving it. The population is top-heavy with older people. So the percentage of the population in the workforce declines when there is either a rapid increase in births or a falling birth rate.

The age distribution of the population has several important effects on the economy. If the population is aging and there is an increase in the number of people retiring without a corresponding increase in the number entering the workforce, this raises the problem of the ability of the economy to provide a reasonable level of social services to the retired group. If the aged are to be cared for in special homes or hotels, finances must be available for that purpose. If the size of the workforce is small relative to the total population, then the government tax receipts are relatively low and either the government has less money available to it or the workforce members have to be taxed more heavily.

It can be concluded from Paragraph 2 that ().

A. a population growth leads to a greater proportion of workforce

B. a large population does not necessarily mean a high proportion of workforce

C. the size of the aged determines the proportion of workforce

D. the proportion of the very young determines the size of workforce