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25. The Group of Eight (G8)______ the eight richest countries in the world.

A. is consisted of  B. is made up of  C. consist of  D. consists in

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24.----- I stayed awake _______ 12 o’clock to wait for my husband to come back last night.

------ Then you _____have had a good sleep, did you?

A. until; mustn’t  B. till; can’t  C. before; should  D. when; would

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23.Drilling oil well was ________ work that he couldn’t finish it by himself.

A. such difficult  B. such a difficult  C. so difficult a D. so difficult

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22.Last week, only two people came to look at the house,________ wanted to buy it.

A. none of them   B. both of them  C. none of whom  D. neither of whom

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第一节:单项填空(共15小题;每小题1分,共15分)

从A B C D四个选项中选出可以填入空白处的最佳选项。

21.Was it in the 1969____the American astronaut succeeded____ landing on the moon.

A. when; on  B. that; on  C. when; in  D. that; in

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50. 在决定鲸的捕捞量时,研究了右图,该图表示鲸的出生率.死亡率与种群大小的关系。下列说法正确的是( )

A.曲线1代表出生率,P代表环境允许的最大数量

B.曲线2代表死亡率,P代表该种群的最大数量

C.曲线1代表死亡率,P代表该种群的最大数量

D.曲线2代表出生率,P代表环境允许的最大数量

福建省福州八县(市)一中09-10学年高二上学期期末联考

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49.右图表示某草地上草.虫.鸟三类生物数量的变化曲线,据图分析,下列叙述正确的是(  )

   A.甲、乙、丙依次是鸟、虫、草 

   B.a点时丙数量的上升主要是因为食物的增加 

   C.b点时丙数量的下降主要是因为天敌的减少 

   D.该生态系统崩溃的原因最可能是鸟类数量的锐减 

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48.为调查黄鹂的种群密度,用捕鸟网网获30只鸟,其中黄鹂5只,做标记后放回自然界,五天后又网获了30只鸟,其中有标记的黄鹂有2只,没有标记的黄鹂有8只,则此地区黄鹂种群个体数大约为  ( )

A.25只   B.20只   C.15只   D.450只

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