0  425121  425129  425135  425139  425145  425147  425151  425157  425159  425165  425171  425175  425177  425181  425187  425189  425195  425199  425201  425205  425207  425211  425213  425215  425216  425217  425219  425220  425221  425223  425225  425229  425231  425235  425237  425241  425247  425249  425255  425259  425261  425265  425271  425277  425279  425285  425289  425291  425297  425301  425307  425315  447090 

22. Look, the moon (月亮) is very ________.

           A. long          B. wide          C. short          D. round

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第一节、单项选择。(10分)

21. -______ is your good friend?

       -Liu Ying.

           A. What         B. Who          C. Where         D. How

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    (   ) 16. Wang Mei is _______ and Wang Yin is _______.

           A. 12, 13             B. 13, 12            C. 12, 11

    (   ) 17. Wang Mei is from _______ and Wang Yin is from _______.

           A. Wuhan, Shanghai    B. Shanghai, Wuhan    C. Shanghai, Beijing

    (   ) 18. Wang Mei and Wang are ________.

           A. in the same class        B. in different grades   C. in different classes

    (   ) 19. Wang Mei’s hair is ________ and her eyes are ________.

           A. long, big           B. short, big          C. long, small

    (   ) 20. Wang Yin has a _______ nose and a ________ mouth.

           A. big, big           B. big, small          C. small, small

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    (   ) 11. A. Mike.                B. Lucy’s friend.      C. Mike’s friend.

    (   ) 12. A. Yes, she does.      B. No, she doesn’t.     C. Yes, I do.

    (   ) 13. A. Yes, they do.       B. No, they don’t.      C. Yes, they are.

    (   ) 14. A. 12.              B. 13.               C. 14.

    (   ) 15. A. England          B. The U.S.A.         C. Canada.

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第二节、听句子,选择正确答案。读一遍。(5分)

    (   ) 6. A. He is short.         B. He is Jack.         C. He is twelve.

    (   ) 7. A. Yes, I do.          B. Yes, I am.          C. Yes, you do.

    (   ) 8. A. Yes, we are.            B. No, you don’t.      C. Yes, you are right.

    (   ) 9. A. No, she isn’t.       B. No, she doesn’t.     C. No, she has a sister.

    (   ) 10. A. They’re students.   B. They’re in Class One.

            C. They come from England.

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第一节、听句子,选择与其内容相符的图片。读一遍。(5分)

    

   A       B      C      D       E

1. ________  2. ________  3. _______   4. _________  5. _________

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18、某城市有甲、乙、丙3个旅游景点,一位客人游览这三个景点的概率分别是0.4,0.5,0.6,且客人是否游览哪个景点互不影响,设ξ表示客人离开该城市时游览的景点数与没有游览的景点数之差的绝对值.

(Ⅰ)求ξ的分布及数学期望;

(Ⅱ)记“函数f(x)=x2-3ξx+1在区间[2,+∞上单调递增”为事件A,求事件A的概率.

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17、某地最近出台一项机动车驾照考试规定;每位考试者一年之内最多有4次参加考试的机会,一旦某次考试通过,使可领取驾照,不再参加以后的考试,否则就一直考到第4次为止。如果李明决定参加驾照考试,设他每次参加考试通过的概率依次为0.6,0.7,0.8,0.9,求在一年内李明参加驾照考试次数的分布列和的期望,并求李明在一年内领到驾照的概率.

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16、甲、乙两名工人加工同一种零件,两人每天加工的零件数相等,所出次品数分别为ξη,且ξη的分布列为:

ξ
0
1
2
P



试比较这两名工人谁的技术水平更高.

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15、从4名男生和2名女生中任选3人参加演讲比赛,设随机变量表示所选3人中女生的人数.

(Ⅰ)求的分布列;

(Ⅱ)求的数学期望;

(Ⅲ)求“所选3人中女生人数”的概率.

η
0
1
2
P



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