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题目列表(包括答案和解析)

根据对话内容及方框中所给的句子补全对话.其中有一项是多余的。
A. I'll feel shy  
B. it'll be easier some day.
C. you have to be brave,just speak aloud.  
D. you can always ask for help.  
E.  I'm afraid to speak  
F.  I'm not looking forward to it.
A:Hi Joyce.  What's up?
B: Hi. Clara. I'm on my way to the English corner. We are starting a lesson on English-speaking skills,
and 1._______
A: Really? Why not?
B:I am not brave enough to speak English, so 2._________What should I do?
A:Oh, don't bc nervous. If you really want to improvc your English-speaking skills,3.________
B: But 4.________if l make mistakes when speaking to others.
A: Don't be afraid to make mistakes because that is part of the process of English learning.  Gradually
you'II get more confident and 5.
B: Thank you for your advice.  I will do my best.  Oh, I'II be late.  Bye!
A: Bye!

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阅读下面五段文字  ,找出能代表本段主题的最佳选项 。
(     ) 1.  I've got a collection of terrible  "mistakes"  at  the  back  of  my wardrobe(衣柜) ,which I never
wear! But I don't mind going with my girlfriend, because she helps me choose.  I think women are better
at buying clothes than men.They've got better taste and they always know what's fashion.
(     ) 2.  You shouldn't be afraid of her.  Maybe she's just  as  shy  as  you.  What  about giving her a red
rose and a short message? Say somcthing like this: "I'd really like  to  know you but I don't know how. "
She'Il probably bc excited to know she's got a fan!
(     ) 3.  Jane usually travcls  for  2  hours  at most  and then shc can have  a  rest of  at  lcast 3 hours. She
meets a lot of interesting people from  all  over  the  world. She  says  she likes it because she doesn't have
to work full-timc so she can spend more time with our three children and me.
(     ) 4. When Mrs Poor got into  the lift.  she  was carrying  only  a  handbag. After  few seconds, the lift
stopped bn floors. She shouted and shouted. and rang the alarm (警报). But nobody heard her.
(     ) 5. I've known her for four years and l really like her. But she always copies everything I do.  lf I buy
some new clothes. the next day she'll go out and buy exactly the same ones. It's the same with music.
films, even my friends! What should I do?
A. Talking about shopping          
B.  Getting intc
C.Takling about one's problems      
D. Talking about one's job
E. Giving suggestions
    

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一.选择题1.A      2.D     3.C     4.C      5.D

二.非选题

30.(18分)(1)①       自养需氧型(2分)    

(2)尿素(2分)   蛋白酶和肽酶(2分)     肝糖元 (2分)

(3)⑤       (4)⑧   核糖体  

 i.血友病男孩(2分)    ii.0    男性    1/8(2分)(其余每空1分)

31.(24分)

(1)(6分)(得分点:几种浓度;B、A、B/A值;平均值;表格记录5个值)

细胞

10%蔗糖溶液

20%蔗糖溶液

30%蔗糖溶液

B(µm)

A(µm)

B/A(%)

B(µm)

A(µm)

B/A(%)

B(µm)

A(µm)

B/A(%)

1

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

平均值

 

 

 

 

 

 

 

 

 

(2)(6分)

分析:1)B/A值越小,说明质壁分离程度越大;

2)随着溶液浓度的增加,B/A值下降,说明质壁分离程度随溶液浓度的增加而增大。

结论:细胞失水量随着外界溶液浓度的增大而增加

(得分点:分析到数值,结论到结构发生的变化)

(3) (6分)设置清水对照组,观察清水中的黑藻细胞,确认其细胞形态正常,无质壁分离现象。

(4)(6分)

方案一:

1)取盐碱植物与黑藻植物叶片若干,用吸水纸吸干水分;

2)配制相同浓度的蔗糖溶液,将上两种叶片浸入10分钟;

3)两种叶片制成装片,观察;比较B/A值的大小。

4)B/A值小,质壁分离程度大,说明细胞液浓度低。

   方案二:

1)选用盐碱植物叶片,如上实验,增加低于10%的浓度并细化浓度;

2)黑藻细胞增加低于10%的浓度,细化;

3)刚开始发生质壁分离的浓度与细胞液浓度相当

4)比较黑藻与盐碱植物的细胞液浓度

 

化学部分答案

选择题:

    6.D     7.D     8.D     9.C     10.B        11.B        12.D        13.B

26.(14分)(1)铝 碳 氢 【每空 1分】 

(2)CH4  正四面体【每空 1分】

       (3)Al(OH)3+OH- =AlO2+2H2O【2分】    碱  【1分】

AlO2+2H2O Al(OH)3+OH-    【2分】

    (4)Al3+3NH3?H2O=Al(OH)3↓+3NH4+↑  【2分】

    (5)Al(CH3)3+3H2O=Al(OH)3↓+3CH4↑   【2分】

27.(16分)(1)用湿润的红石蕊试纸,变蓝为NH3  【2分】

(2)40H-4e=O2↑+2H2O  【3分】

    (3)①4Fe(OH)2+O2+2H2O=4Fe(OH)【3分】         

②Fe2O3+2Al2Fe+Al2O3       【3分】

    (4)Fe+4H++NO3=Fe3++NO↑+2H2O  【3分】         

(5)(NH4)2Fe(SO4)2   【2分】

28.(14分)  【每空 2分】  (1)C     (2)MnO2+4H+2Cl=Mn2++Cl2↑+2H2O

    (3)干燥氨气;除去氯气中的氯化氢

    (4)使密度较大的Cl2和密度较小的NH3较快地混合均匀。

    (5)3Cl2+8NH3=N2+6NH4Cl    

   

(6)在G连接导管,直接把尾气通往盛有NaOH的烧杯中

29.

(16分) [除了(2)小题每空1分外,其他都每空2分 ]

 

 

(1)C9H6O2   ,7

 

 

(2)A:CH3CHO  B: C: D:

    (3)FeCl3(或Br2水);紫色(或白色沉淀)

文本框:     

 

        +2Cu(OH)2+Cu2O↓+2H2O

 

物理答案

17.答案(1)①粒子在O'Q间射出,轨迹如图所示。

  由 qv0B=mv02/R               (2分)

  得R1=mv0/qB1                        (1分)

  同理得  R2=mv0/qB2                 (1分)

d=R1+R2(3分)

  因此d              (2分)

②粒子在磁场B1中做圆周运动的周期,在磁场B2中做圆周运动的周期  (2分)

粒子在O'Q间射出,在两个磁场中分别经历2n十1个

所以  (3分)

 

第二次联考物理答案

一、(6×8'=48')

14.CD  15.ABC  16.C  17.B  18.D  19.C  20. ACD  21.ABC

二、(6+12=18')

22.(1) 等于   10   2.5 

(2). 0.500   A1   V1   R2   

三、(16+18+20=54')

23.解:①……2分

     ……2分

     ……2分

     ……2分

     ……1分

    ②落地时速度……2分

     ……3分

     ……2分

24.解:①……①……4分

     ……②……4分

     ……1分

    ②……③……2分

     ……④……1分

     ……⑤……1分

     ……1分

     ……3分

      

      ……1分

 

25.解:①……3分

     ……3分

    ∴……2分

    ②……3分

     ……3分

     ……4分

      ……2分

 

 

 

 

 

                

 


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