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9. -   you were so late this morning?

-I forgot to set the alarm before going to bed last night.

A. Why       B.  How come     C.  How about    D. How

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8.  At the beginning of a speech, it is very important to grab the audience’s attention and make them interested in   ________you have to say.  

A. which            B. what        C. that         D. who

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7.They are letting us use their computer, and __________ we are giving them the results of our research.

    A. in charge          B. in place           C. in return          D. in a row

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6.There was a murder in one of the poorest suburbs in the city the other day. Now the police are turning the whole house upside down __________ clues.

    A. in want of         B. in search of           C. in favor of         D. in need of

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5.After years of hard work, he has at last achieved his lifelong __________ of launching a newspaper, which is very popular with teenagers.

    A. motivation         B. appetite           C. ambition          D. privilege

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4.The fire,believed to    due to illegal construction on the building’s roof, was brought

   under control after an hour.

A.have occurred                      B.occur 

C.have been occurring                   D.be occurring

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3.He lay in bed,listening to the rain    the window.

     A.hitting           B.defeating         C.beating           D.striking

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2.When he applied for a    in the office of the local newspaper he was told to see the manager

    A.location         B.situation         C.career           D.position

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第一节:单项填空(共20小题 ;每小题0.5分,满分10分)

从A、B、C和D四个选项中,选出可以填入空白处的最佳选项,并在答题纸上将该选项标号涂黑。

1.-It seems that Westerners seldom give their friends financial help.

-Maybe.For them     friendship is mostly     matter of providing emotional support and spending time together.

     A./;the          B.the;a           C./;a           D.a; the

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(三)、分析并回答:

⑴指出该实验步骤中存在的三处错误并修正

                                     

                                                                           

                                      ⑵若要得出叶中脯氨酸含量的变化与危害的关系,实验中还应增加叶的危害程度这一指标,叶的危害程度可以用__________________作为指标。

⑶预期最可能的实验结果                           

31.(22分)已知家兔的毛色受两对基因(A-a,B-b)的支配,这两对基因位于非同源染色体上,其表现型和基因型的对应关系如下表,请回答下列问题:

基因型
A,B同时存在
A存在,B不存在
 
只要A不存在
表现型
黑色
灰色
白色

(1)黑兔的基因型有     种,白兔的基因型为          

(2)多对基因型相同的黑兔交配,子代毛色只有两种,且分离比为3:1,则双亲的基因型为          

(3)一只黑兔与一只灰兔交配,子代毛色有黑色、灰色和白色,则双亲的基因型为        ,黑色、灰色和白色子代的理论分离比为       

(4)现有一只灰色雄兔,设计方案测定其基因型。简要写出方案和预期结果。(注:提供的雌兔都为基因型相同的纯合子)

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