27. Lin Dan, the two-time defending world champion, raced to a 7-0 lead in the second game, _______ a stunned Lee Chong Wei started to even find his rhythm.

A. before　　　　　 B. after　　　　　 　 C. since　　　　　　　 D. once

26. On the bank of the river, we found him ______ on a beach, with his eyes _______ on a kite in the sky.

A. seated; fixing　　　 B. sitting; fixing　 　　 C. seated; being fixed　 D. sitting; fixed

25. I feel sure that _______ qualification, ability and experience, you are abundantly suited to the position we have in mind.

A. on account of　　　 B. in terms of　 C. on the basis of　　　 D. in the light of

24. The painting is so valuable that it is difficult to calculate ______ its price would be if the museum wanted to sell it.

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

23. ---Did you find the missing couple in the mountain yesterday?

---No, but we _______to get in touch with them ever since.

A. have tried　　　　　 B. have been trying　 　 C. had tried　　　　 D. had been trying

22. ---I’m not good at basketball, you know.

----_______. We’re playing for fun. Just try and you’ll see you can do it.

A. Well, it depends.　 B. Take your time.　 　 C. Come on!　　　　　 D. That’s OK.

第一节：单项选择题(每小题1分，满分15分)

21. ---What has happened here?

---There was _______accident here about an hour ago, ______ car hit a tree and ______ driver was killed.

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

44、(10分)某研究性学习小组的同学对玉米和小麦进行如下实验：将等质量的玉米幼苗和小麦幼苗分别放在两个相同的密闭透明的容器中，给予充足的光照及适宜的温度等，并及时检测幼苗有机物总量和容器中的CO₂浓度，得到如下图结果，请分析回答：

(1)图乙表示＿＿＿＿＿幼苗中有机物总量及容器中CO₂浓度的变化，判断的理由是＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿。

(2)如果将两幼苗放在一个密闭透明的容器中培养，给予充足的光照及适宜的温度等，两者关系在生物学上称为＿＿＿＿＿，一段时间后，请预测结果，并在图丙中绘制相关曲线说明预测的实验结果。

贵州省兴义市精华中学2010届高三第一次月考