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八下-植物的生殖练习题(附答案).doc

1、out city created, and care masses life, focus work, in-depth investigation, more out boutique masterpiece, makes we of research results more to into led of decision vision, more to in national some has effect of newspaper Shang published, for advance work, and publicity changde play due of role. Thi

2、rd, information submitted to be pragmatic. Quick and timely. The ancients said: for the time system; statement back for the time being, nothing. Therefore, the submission of information to do “four“, that is, find the problem faster, editorial writing, send and read faster approval and feedback to i

3、mplement quickly. To be true and accurate. True mainly reflect the full picture of events, one is one, two, this is the life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative objective of publicQualitative logic. To be reliable and useful. We submit infor

4、mation to have access to decision-making, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency information, rapid escalation in strict accordance with the procedures, firm, newspaper, newspapers, never late, fail to report, false claim and

5、skimming. Investee 2. supervision and insist on, around and protecting their interests to touch the truth, seek practical results. Adhere to people-oriented, the most important thing is to realize, safeguard and develop the fundamental interests of the overwhelming majority of the people. We carry o

6、ut inspection, so must go deep among the masses, go deep into the realities, always pay attention to the peoples livelihood, to grasp the public sentiment, and earnestly safeguard the benefit, addressing the masses are most concerned about and reflecting the strongest issues, efforts to solve the pr

7、oblem of decisions implemented and not implemented. One is to stick to principles. Right of inspection is one of the most important powers of the Office, should not only dare to use, but also with caution. So-called dared to use, is to hold a number of important issues, bold supervision over supervi

8、sion, track inspection, problems are not solved do not pass, the blame does not hold did not miss, dissatisfaction of the masses did not miss, the real right of supervision authority, with the benefits. Call with caution, is supervising departments should strengthen the consciousness of authorized s

9、trictly according to procedure, preventing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervision Department of the Party Committee of supervision must be under city and County party Committee Secretary-General (Office). Second, we should focus on. Is the

10、 Governor, those related to the globalEvent, Governor the protracted difficult, strong Governor during emergency urgent. Not having special departments in charge of the General Governor, under the normal procedure can do good things not Governor, not authorized by County leaders, not the Governor. T

11、hird is to solve the problem. The purpose of supervision, to resolve the problem. To adhere to and further improve thefeelings survey, by looking up public sentiments to find problems. Problems will increase its special supervision, set up accounts, hold on to it. We should conscientiously implement

12、 the leading contracting matters, secured, had an answer to everything, then settles rate of 100%. Have an impact on some of the outstanding issues, supervision departments and information components together, play the supervisory role of the news media to promote problem solving. Investee 3. insist

13、 on a daily run, around the practice of truth catching efficiency, focus specification. To give full play to the party Office around connecting, coordinating internal and external features, contact, rally at all levels, to motivate every aspect, adhere to the truth, strengthening standardized manage

14、ment to achieve coherent, efficient and effective functioning of the daily work of the Party Committee. Is processing messages should strive to streamline, standardize and quality. Streamlining is to control the number of messages, compress messages, reducing procedures, improve message handling eff

15、iciency. Specifications, is to strictly enforce the ban issued by the Communist party authorities in document handling regulations and provincial and municipal regulations, conscientiously strengthen and improve communications management to ensure that party documents orderly. High quality, is to im

16、prove the quality of message processing, it is necessary to accurately implementing the intention of the Party Committee, clearance, good communications, policy program closed, ensuring that there is no error. Second meeting scheduled to ensure thorough, safe and efficient. Any arrangements for the

17、meetings and events, carefully arranged, item-by-item interface implemented, sure. To vigorously streamline meetings, activities, number of pressure reduction, scale to ensure that leadership emerged from the General Conference and entertainment services, focus on big things, matters. Third, recepti

18、on services should lay stress on humane, personal, cultural and human. Reception and work directly with people, reception services directly affecting the Office of party Committee The image of the region. At the same time strengthening the construction of library, improve the reception conditions, m

19、ore human-oriented, personal, cultural work into the reception, a little more human needs, a little more human care more humane atmosphere, and constantly improve the service, improve the quality of service. Meanwhile, to further pay special attention to the daily work of the other Office System. Co

20、nfidential work responsibility system for leading cadres to implement security as a leader, to improve the confidentiality of classified personnel, especially leading cadres, strengthening party and Government focus on vital sectors of security management, to advance privacy management standardizati

21、on, modernization of security techniques as a means of administration according to law and security enforcement, ensure the safety of the party and State secrets. Confidential work to meet the demands of new technology development第七单元第一章生物圈中生命的延续和发展第一节 达标试题(第 1 课时)A 卷一、选择题1. 从生物学的角度分析,诗句“梁上有双燕,翩翩雄与雌

22、。青虫不易捕,黄口无饱期,须臾十来往,犹恐巢中饥”主要反映了( )A.燕子在梁上翩翩起舞 B.燕子是成双成对的 C.燕子生儿育女很辛苦 D.生物有繁殖后代的本能2. 小麦、青蛙和人的个体发育的起点都是( )A.卵细胞成熟时 B.精子成熟时 C.受精卵形成时 D.种子或刚孵出小蝌蚪时3. 无性生殖的优势在于( )A.耐受不良环境 B.操作简便,繁殖迅速 C.产生种子 D.产生新品种二、填空1. 桃树主要由核桃中的 发育而来,而桃核中的这个结构,是由桃花中的精子和 结合成 发育而来。植物这种生殖方式叫做 。2. 椒草用 生殖,马铃薯用 生殖,都是不经过两性 的结合,由母体直接产生 ,这种生殖方式称

23、为 。三、右图是绿色开花植物的有性生殖过程示意图,根据图回答:1. 一朵花的主要结构是 ,它包括 和 两部分。2. 当花粉落在柱头上之后,花粉受到黏液的刺激后就开始萌发,形成花粉管,里面的精子与【4】 中的【3】 结合,形成受精卵。 发育成种子中的胚,由胚发育成植物体。第七单元第一章第一节达标试题(第 1 课时)B 卷一、选择题1.下列植物的生殖方式是有性生殖的是( )A.椒草的叶能长成新的植物体 B.玉米通过种子进行繁殖C.一个草履虫分裂成两个草履虫 D.一头奶牛生下了克隆牛2.无性生殖与有性生殖的本质区别是( )out city created, and care masses life,

24、 focus work, in-depth investigation, more out boutique masterpiece, makes we of research results more to into led of decision vision, more to in national some has effect of newspaper Shang published, for advance work, and publicity changde play due of role. Third, information submitted to be pragmat

25、ic. Quick and timely. The ancients said: for the time system; statement back for the time being, nothing. Therefore, the submission of information to do “four“, that is, find the problem faster, editorial writing, send and read faster approval and feedback to implement quickly. To be true and accura

26、te. True mainly reflect the full picture of events, one is one, two, this is the life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative objective of publicQualitative logic. To be reliable and useful. We submit information to have access to decision-makin

27、g, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency information, rapid escalation in strict accordance with the procedures, firm, newspaper, newspapers, never late, fail to report, false claim and skimming. Investee 2. supervision and i

28、nsist on, around and protecting their interests to touch the truth, seek practical results. Adhere to people-oriented, the most important thing is to realize, safeguard and develop the fundamental interests of the overwhelming majority of the people. We carry out inspection, so must go deep among th

29、e masses, go deep into the realities, always pay attention to the peoples livelihood, to grasp the public sentiment, and earnestly safeguard the benefit, addressing the masses are most concerned about and reflecting the strongest issues, efforts to solve the problem of decisions implemented and not

30、implemented. One is to stick to principles. Right of inspection is one of the most important powers of the Office, should not only dare to use, but also with caution. So-called dared to use, is to hold a number of important issues, bold supervision over supervision, track inspection, problems are no

31、t solved do not pass, the blame does not hold did not miss, dissatisfaction of the masses did not miss, the real right of supervision authority, with the benefits. Call with caution, is supervising departments should strengthen the consciousness of authorized strictly according to procedure, prevent

32、ing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervision Department of the Party Committee of supervision must be under city and County party Committee Secretary-General (Office). Second, we should focus on. Is the Governor, those related to the globalE

33、vent, Governor the protracted difficult, strong Governor during emergency urgent. Not having special departments in charge of the General Governor, under the normal procedure can do good things not Governor, not authorized by County leaders, not the Governor. Third is to solve the problem. The purpo

34、se of supervision, to resolve the problem. To adhere to and further improve thefeelings survey, by looking up public sentiments to find problems. Problems will increase its special supervision, set up accounts, hold on to it. We should conscientiously implement the leading contracting matters, secur

35、ed, had an answer to everything, then settles rate of 100%. Have an impact on some of the outstanding issues, supervision departments and information components together, play the supervisory role of the news media to promote problem solving. Investee 3. insist on a daily run, around the practice of

36、 truth catching efficiency, focus specification. To give full play to the party Office around connecting, coordinating internal and external features, contact, rally at all levels, to motivate every aspect, adhere to the truth, strengthening standardized management to achieve coherent, efficient and

37、 effective functioning of the daily work of the Party Committee. Is processing messages should strive to streamline, standardize and quality. Streamlining is to control the number of messages, compress messages, reducing procedures, improve message handling efficiency. Specifications, is to strictly

38、 enforce the ban issued by the Communist party authorities in document handling regulations and provincial and municipal regulations, conscientiously strengthen and improve communications management to ensure that party documents orderly. High quality, is to improve the quality of message processing

39、, it is necessary to accurately implementing the intention of the Party Committee, clearance, good communications, policy program closed, ensuring that there is no error. Second meeting scheduled to ensure thorough, safe and efficient. Any arrangements for the meetings and events, carefully arranged

40、, item-by-item interface implemented, sure. To vigorously streamline meetings, activities, number of pressure reduction, scale to ensure that leadership emerged from the General Conference and entertainment services, focus on big things, matters. Third, reception services should lay stress on humane

41、, personal, cultural and human. Reception and work directly with people, reception services directly affecting the Office of party Committee The image of the region. At the same time strengthening the construction of library, improve the reception conditions, more human-oriented, personal, cultural

42、work into the reception, a little more human needs, a little more human care more humane atmosphere, and constantly improve the service, improve the quality of service. Meanwhile, to further pay special attention to the daily work of the other Office System. Confidential work responsibility system f

43、or leading cadres to implement security as a leader, to improve the confidentiality of classified personnel, especially leading cadres, strengthening party and Government focus on vital sectors of security management, to advance privacy management standardization, modernization of security technique

44、s as a means of administration according to law and security enforcement, ensure the safety of the party and State secrets. Confidential work to meet the demands of new technology developmentA.有无生殖细胞的形成 B.是否由一个亲本完成C.有无细胞分裂 D.有无精卵细胞的结合3.有性生殖对生物进化有重要意义,下列叙述中不正确的是( )A.后代具有两个亲本的遗传特征 B.后代具有更大的生活力C.后代具备不受

45、环境影响的特征 D.后代具有更大的变异性二、非选择题1.花开放后,花粉从 里散出来,落到落头上的过程,叫传粉。这是一种 生殖方式。2.海星(一种海洋生物)碎割成小块,只要下快上带有部分中央盘,就能再生成完整的海星个体,这种再生作用属于 生殖。3.菊花既能进行无性繁殖,又能进行有性繁殖,据此回答:1) 如果要保持某种菊花的优良特性,宜用 生殖来进行繁殖,原因是: ,这种生殖方式的共性是 。2) 如果想培育新品种的菊花,多采用 生殖方式繁殖,原因是 。第七单元第一章第一节达标试题(第 1 课时)C 卷一、选择题1. 竹子的地下部分有很多竹鞭,竹鞭分节,节上的茅形成竹笋,由竹笋长成新的竹子,这种生殖

46、方法为( )A.有性生殖 B.无性生殖 C.嫁接 D.压条2. 下列属于无性生殖的细胞是( )A.精子 B.卵细胞 C.受精卵 D.孢子3.生物一般不会由于个体的死亡而导致该物种灭绝,这是由于生物具有什么样的生物特征( )A.新陈代谢 B.生殖 C.遗传变异 D.进化二、非选择题1.在桃树开花季节,选择甲、乙、丙三朵桃花进行如下实验:分别去掉甲的雄蕊和乙的雌out city created, and care masses life, focus work, in-depth investigation, more out boutique masterpiece, makes we of r

47、esearch results more to into led of decision vision, more to in national some has effect of newspaper Shang published, for advance work, and publicity changde play due of role. Third, information submitted to be pragmatic. Quick and timely. The ancients said: for the time system; statement back for

48、the time being, nothing. Therefore, the submission of information to do “four“, that is, find the problem faster, editorial writing, send and read faster approval and feedback to implement quickly. To be true and accurate. True mainly reflect the full picture of events, one is one, two, this is the

49、life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative objective of publicQualitative logic. To be reliable and useful. We submit information to have access to decision-making, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency information, rapid escalation in strict accordance with the procedures, firm, newspaper, newspapers, never late, fail to report, false

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