下列各组微粒半径（r）之比小于1的是　( ) A． B． 　 C． D．

氧化还原反应与四种基本反应类型的关系如图所示。下列化学反应属于阴影部

的是

A．2Na₂O₂+2CO₂→2Na₂CO₃+O₂

B．2NaHCO₃ Na₂CO₃+H₂O+CO₂↑

C．4Fe(OH)₂+O₂+2H₂O→4Fe(OH)₃

D．Cl₂+2KBr→Br₂+2KCl

阅读理解

     Today, almost everyone has heard of Harry Potter．The books detailing his experiences at Hogwarts

School of Witchcraft and Wizardry have aroused passion, creativity, and interest in reading throughout the

world．

     But have you ever considered why you are a fan of the Harry Potter series?

     JK Rowling has created a list of characters and an environment for them to inhabit that appeals to both

adults and children．

     The fantasy aspect of the wizarding world expands the imagination, and takes the mind to new

and exciting places．Anything could happen there．Her stories contain parts of the believable and

unbelievable, changing the predictability that readers commonly come across and bear in fiction．

     The main theme of the series, including good versus evil, prejudice, love, death, sacrifice, friendship

and loyalty, in actuality contributes to the ever-lasting nature of the stories．At the same time, these themes

 remind us of classic literature, offering mature readers tales that wear like a comfortable pair of shoes,

     while introducing younger readers to concepts they will meet throughout their lives．

     Much of the appeal also comes from the characters．In each book, JK Rowling introduces and

describes the characters in such a way that we wonder not only about their futures, but also about their

pasts．Even supporting characters are suddenly more than just extras in the background．And what of

Harry Potter himself? We care about Harry, because we watch him grow from an innocent boy to a

powerful wizard．We see him as both Hero and Victim．He experiences endless love and extreme pain,

and as readers, we experience them with him．

     This perfect combination of emotion, suspense and fantasy, together with the fact that JK Rowling is a

superb storyteller is the reason why we are Harry potter fans．People are fond of Harry Potter series．

With books like these, it's hard not to be．

1．Harry Potter series become popular partly because ____________．

A．they remind us of the childhood and environment we had in the past

B．they take us to a world beyond our imagination and expectation

C．they offer us ever-lasting nature of the stories

D．they set an example of hero for us to follow

2．What does the underlined sentence in Paragraph 6 mean?

A．The supporting characters are not necessary in the story．

B．Readers care only about Harry but not those supporting characters．

C．Even the supporting characters are attractive in the story．

D．Those supporting characters only appear all of a sudden．

3．The themes of the Harry Potter series do not contain ____________．

A．prejudice and love

B．good and evil

C．death and sacrifice

D．safety and peace

4．People care for Harry Potter because ____________．

A．they think of classic literature when reading the story

B．they find different experiences from theirs on Harry

C．they share the experiences with Harry

D．they like JK Rowling's description very much

动物行为

阅读下面程序 1 public class Try extends Thread{ 2 public static void main(String args[ ]){ 3 Try t = new Try( ); 4 t. start( ); 5 } 6 7 public void run( int j){ 8int i = 0; 9 while(i＜5) { 10 System.out.pfintln("祝你成功"); 11 i++; 12 } 13 } 14 } 该程序要求打印5行“祝你成功”必须改正程序中的某行代码，程序才能完成。选择正确的修改是( )。

A．将第1行的extends Thread改为implements Runnable

B．将第3行的new Try()改为new Thread()

C．将第4行strt()改为start(

D．将第7行的publ void run(int 改为public void run()

按照《劳动法》的有关规定我国劳动动者享有的权利第一项是（）。

A.取得劳动报酬的权利

B.享有平等就业和选择职业的权利

C.休息休假的权利

D.享受社会保险和福利的权利