2012海淀一模单选题详解
- 格式:ppt
- 大小:88.00 KB
- 文档页数:15


2012年海淀区一模生物试卷分析
第一题考查细胞工程部分,要求学生理解脱分化、再分化等生理意义,同时对于生物学中定向诱导和非定向诱导的定义部分要求学生有一定把握。
第二题考查影响光合作用的因素,同时注意了数形结合,这与考纲中强调的“读图、识图”有异曲同工之妙。
第三题从新情景出发,给出了“突变酶”这一新概念,考查学生应对教材外沿知识的能力。
第四题在神经调节上做文章,重点在于需要学生理解神经兴奋剂与神经抑制剂两者之间的区别和联系。
第五题考查必修三种群及生态系统部分,涉及种群数量、演替的两种类型及物种丰富度等知识点,题目内容结合紧密。
解答题29题图形本身并不独特,但出题人在设问角度上下功夫,对“不同生理功能细胞之间的形态结构关系和特点”进行考察。
命题角度新颖独特,值得同学们思考。
30题的遗传计算部分难度不高,但第三问涉及到限制性内切酶结合凝胶电泳知识点,由于很多同学对凝胶电泳部分知识不够熟悉,容易导致学生对该题的畏难心理最终导致不得分。
31题给出新的设问情景即凋亡抑制蛋白基因的反义脱氧核苷酸序列对肠癌肿瘤的抑制作用。
题目设计合理,难度本身不大。
但第二问中5%的CO2用以调节PH值稳定性这一知识点被很多同学忽略。
最后一问,对于抑制率的计算设问则需要同学们变换思维对题目所给出的算式进行解读。
这些都体现了命题人的良苦用心。
文档供参考,可复制、编制,期待您的好评与关注!听力理解一、听对话,从下面各题所给的A、B、C三幅图片中选择与对话内容相符的图片。
每段对话读两遍。
(共4分,每小题1分)、二、听对话或独白,根据对话或独白的内容,从下面各题所给的A、B、C三个选项中选择最佳选项。
每段对话或独白读两遍。
(共12分,每小题1分)请听一段对话,完成第5至第6小题。
5. How is Kate going to Qingdao?A. By plane.B. By car.C. By ship文档供参考,可复制、编制,期待您的好评与关注!6. What is she going to do there?A. She's going sightseeing.B. She's going to study in Qingdao.C. She's visiting her grandparents.请听一段对话,完成第7至第8小题。
7. What did the girl enjoy about last year's festival?A. Singing with other students.B. Playing in the school band.C. Listening to nice music.8. When does the festival start this year?A. October 17.B. October 7.C. October 6.请听一段对话,完成第9至第10小题。
9. Why is the man interested in this job?A. He likes public speaking.B. He likes working on weekends.C.He likes travelling and meeting people.10. How many foreign languages can the man speak?A. One.B. Two.C. Three.请听一段对话,完成第11至第13小题。
海淀区高三年级第二学期期中练习英语2012.04本试卷共12页,共150分。
考试时间120分钟。
第一部分:听力理解(共三节,30分)第一节(共5小题;每小题1.5分,共7.5分)听下面5段对话。
每段对话后有一道小题,从每题所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你将有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话你将听一遍。
1. What does the woman want?A. A toothbrush.B. Some food.C. Some books.2. When will the Chief Editor probably see the man?A. At 9:00.B. At 10:30.C. At 11:00.3. Where was the man yesterday afternoon?A. At a lake.B. In a café.C. In a cinema.Text 3:W: Did you have a good time yesterday?M: Yes, I went fishing with my friend at a lake, but it rained at noon, so we stayed in a café before we went to the cinema at 7 p.m.4. What is the relationship between the two speakers? (中)A. Husband and wife.B. Receptionist and visitor.C. House seller and buyer.5. Where will the man probably live next year? (难)A. In his house.B. In an apartment.C. In the dormitory.Text 5:M: I don’t think I want to live in the dormitory next year. I need more privacy.W: But check out the cost of renting an apartment first. How about moving back home?M: Oh, it’s too far. Maybe I’ll still stay on campus.第二节(共10小题;每小题1.5分,共15分)听下面4段对话或独白。