21. This article may shock some sensitive readers, I offer my apologies in advance.
A. from whom B. for whom C. to whom D. towards whom
20. -Where will you start your work after graduation?
一It’s not been decided yet. I continue my studies for a higher degree.
A. need B. would C. might D. must
19. One can be strong, brave and faithful after all these hardships he has ________.
A. looked through B. got through C. put through D. gone through
18. Choosing the right dictionary depends on ______ you want to use it for.
A. why B. what C. how D. whether
17. - I have heard you are going to change your job. Are you serious?
-_______. I will quit my job.
A. Yes, I’ve made up my mind B. No, I was joking
C. Yes, I do hope so D. No, I’m not
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,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
16. We are now living in ______ “Information Age”, ______ time of new discoveries and great changes.
A. the; a B. an; the C. 不填; a D. the; the
47.(11分)植物表现出的顶端优势--植物的顶芽优先生长而侧芽受到抑制的现象,就是因为顶芽产生的生长素向下运输,大量地积累在侧芽部位,使侧芽的生长受到抑制的缘故。
为了验证“植物顶芽产生的生长素能抑制侧芽的生长”,请根据所给的材料和用具设计实验:
材料和用具:生长状况相同的柳树幼苗若干,不含生长素和含生长素的羊毛脂,剪刀等。
(1)实验步骤:
①
②
③
(2)实验结果是:
(3)实验结论:
辽宁省锦州市2010届高三上学期期末考试
46.(9分)如图是一个食物网简图,请据图回答下列问题:
(1)此食物网中有 条食物链。图中的 是生产者,猫头鹰所占的营养级是 。
(2)猫头鹰和蛇的关系是 。
(3)该食物网再加上________和__________就可以构成一个完整的生态系统。
(4)生态系统的功能是_____________、___________和_____________。
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