28.Letters to the editor must carry the writer’s full name, which indicates that writers are _____for what they say.
A. considerate B. reasonable C. independent D. responsible
27.It was shameful to be found sleeping in class. His classmates’ laughter only_____ his embarrassment.
A. added to B. appealed to C .referred to D. applied to
26.She was not beautiful, she didn’t _______her mother, who was a beauty.
A. like B .imitate C. resemble D. represent
25.He suddenly saw Sue across his room ,so he ______his way through the crowd to get to her.
A. felt B. pushed C .struggled D. wound
23.Just as the clothes a person wears, the food he eats and the friends with whom he spends his time ,his house ______his personality.
A. resembles B .strengthens C. reflects D .shapes
24 Polar explorers have to be extremely______ to bear the climate and other hardships.
A. tough B. rough C. difficult D. brave
22. As a good teacher, he should use different ways to encourage all children to realize their full ____and achieve their goals.
A. possibility ception C .potential D. difference
第一节：多项选择(共10小题；每小题1分，满分10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。
21.This restaurant has become popular for its wide _____of foods that suit all tastes and pockets.
A. division B. area C. range D .circle
23.(8分)1952年，莱德伯格夫妇通过“影印培养法”，研究大肠杆菌抗链霉素的突变与环境因素的关系。实验的过程如下图所示：
说明：将原始菌种培养在1号培养基中，待长出很多菌落后，将灭菌绒布面按到1号培养基上，使绒布面沾上各个菌落。然后再将绒布面分别按到2号和3号培养基上，使绒布面上的菌落按照原位接种到2号和3号培养基上，这种接种方法称为“影印接种”。同理，6号和7号接种自5号培养基，10号和11号接种自9号培养基。
请据此实验回答下列问题：
(1)细菌抗药性变异的来源属于 。如果3中没有细菌长出，说明 。
(2)3号与2号培养基中的菌落数的比值，是抗性菌落(株)占全部菌落(株)的比例。观察实验结果，判断4、8、12中抗性菌落(株)的比例最大的是 ，其中的细菌及其亲代有没有接触过链霉素？ 。
(3)可见，细菌抗药性的形成是在施加链霉素之 (前或后)。链霉素对细菌抗性菌落(株)的作用在于 ，其内在实质是 。
(4)尽管环境中细菌菌群中存在抗药性基因，但是目前仍使用抗生素治疗由细菌感染引起的疾病。原因在于菌群中 。但如果不加节制的滥用抗生素，可能导致的后果是抗生素的药效降低。
湖北省监利县第一中学2011届高三八月月考
