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27.______ some injuries to his face and hands, he broke both legs.

  A. Except     B. Except that    C. But for      D. Apart from

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26._____ a pity that I forgot to bring your dictionary.

  A. It’s       B. This is    C. That’s      D. There’s

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25.We were told to have our reading room_____ after school.

  A. clean      B. to clean    C. cleaning     D. cleaned

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24.Only if you put your heart into your learning,_______.

 A. can you succeed   B. you can succeed  C. that you can succeed  D. can that you succeed

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23.The girl ______ in red is a friend of mine.

A. dressed      B. dressing       C. dresses      D. dress

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22.Mr Smith stood up in defence of the 16-year-old boy, saying that he was not the person ______.

A. blamed     B. blaming      C. to blame        D. to be blamed

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第一节:单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中选出可填入空白处的最佳选项,并在答题卡上将该项涂黑。

21.---Do you know _______?

----Sorry, I’ve no idea.

  A .the word means  B. that the word means  C. what the word means  D. what does the word mean

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33.玉米植株的性别决定受两对基因(B-b,T-t)的支配,这两对基因位于非同源染色体上,玉米植株的性别和基因型的对应关系如下表,请回答下列问题:

基因型
B和T同时存在
(B_T_)
雌雄同株
T存在,B不存在
(bbT_)
雄株
T不存在
(B_tt或bbtt)
雌株

(1)  基因型为bbTT的雄株与BBtt的雌株杂交,F1的基因型为________,表现型为_______;F1自交,F2的性别为_________,分离比为________.

(2)  基因型为________的雄株与基因为_________的雌株杂交,后代全为雄株。

(3)  基因型为________的雄株与基因型为_________的雌株杂交,后代的性别有雄株和雌株,且分离比为1:1。

九江一中高二生物月考试卷2010.10 (分离定律和自由组合定律)

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32.某植物的花色由两对自由组合的基因决定。显性基因A和B同时存在时,植株开紫花,其他情况开白花。请回答:

开紫花植株的基因型有   种,其中基因型是   的紫花植株自交,子代表现为紫花植株∶白花植株=9∶7,基因型为      的紫花植株各自自交,子代表现为紫花植株∶白花植株=3∶1,基因型为   的紫花植株自交,子代全部表现为紫花植株。

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