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中考生物实验探究题的答题技巧

被浏览: 0次 2023年09月11日 12:54
热门回答(2个)
游客1

Do not know that you want to review methods used by teachers or students to use methods of the review?
From the perspective of teachers:
Test this proposition in general has not changed the basic ideas, or to grow up in me, and I with others, I and the collective relationship between the state and society the main line, on the moral, psychological, legal and national conditions, such as learning content integration, attention to the times, to explore and cultivate the spirit of innovation and practice, and guide students to have a meaningful life, doing a responsible citizen, the embodiment of a new curriculum, new ideas. So the idea of a new curriculum is essential to guide the overall review. Can be phased review.
The first stage: It is "standard" pursuant to "the" Foundation Stage. Timing: From mid-February to mid-April the end of the county the first round of quality inspection. The new curriculum standards are based on test preparation and orientation to the new curriculum standards of learning, understanding and combination of close review, as the use of new curriculum standards not only in the new lesson to pay attention to using the medium of instruction, especially in the review of test review before the general use of more attention should be paid. Looking back over the years in the examination, the majority based on curriculum standards, derived from teaching materials, and expand on the materials, from materials to check the extension of knowledge of students reserves, problem-solving abilities and emotional values. New Curriculum at this stage is therefore based on a systematic review of teaching materials is to ensure that the key to the quality review, at this stage:
(1) teaching materials are mainly in modular units, the seventh grade to eighth grade after the final review of the order of the ninth grade. Test the basic proposition is a matter of principle, and therefore the review focuses mainly on strategy to lay a solid foundation based on knowledge. With the reform of the examination system, think of the status of goods in class and gradually reduce the subjects, and teachers face in the review of the problem is that fewer hours and review capacity, so a "carpet-style" review is not practical, I also do not always in favor of "carpet-style" review, but the former class of materials under the New Curriculum for a bold choice, and preparation of units targeted to review the outline, the outline of each unit, including test interpretation, and sample questions selected proposition point of view of three parts, the精讲refined to enable students to be familiar with, understanding, teaching materials, training their own analysis of the use of knowledge and problem-solving abilities. Because the test is open-book test, if usually not familiar with the materials, test to find "what" is not difficult, but to find the "why", "How to solve the problem" is not easy. Therefore, the first phase of which require students to be understood in the review of each unit, each lesson topic, box title, the title of the reference and title of each box of the main views, the main issues and the formation of knowledge networks. Also the only way to thoroughly understand the material, a solid foundation of knowledge for the application of knowledge, theory with practice and lay a solid foundation.
(2) pay attention to the review associated with the guidance of the students understand the different point of view the intrinsic link between knowledge, ideology and morality lessons with relevant knowledge, so you can review the relevant unit of knowledge linked to related review in order to better master the basic knowledge, thereby enhancing the capacity. First, the rationalization of teaching materials to help students knowledge of the intrinsic link between. For example, to review eight years of cooperation in the competition level of the test may be linked to create a good seventh grade class; ninth grade, the relationship between the individual and the collective, the collective commitment to caring responsibilities, development of the collective spirit and teamwork and so on. Good faith review the eighth grade to always behave in this test, they can contact the Society for the ninth grade to be a responsible citizen, to carry forward the traditional virtues of the Chinese nation, a harmonious society, the basic moral norms, such as the socialist concept of honor. Secondly, the teaching of knowledge and current affairs organic hot link. Close examination of the social hot spots, the sense of the times, and this is the ideological and moral characteristics of subjects, so we have to open up teaching opportunities, pay attention to a small classroom with the community, the combination of environment, teachers should pay attention to politics more than some hot collection. In teaching, guiding students from different angles, with different knowledge points to observe, analyze the current political hot-spot issues, cultivate innovation and practical ability of students. For instance, to eighth grade review to achieve social equity and justice when this knowledge can be linked from the stage of compulsory education students textbooks, accommodation, fees寄读; from the autumn of 2008 a comprehensive urban education students exempted from tuition and fees; in Zhangzhou rural subsistence allowances to raise the subsidy standards; also the "two sessions" related to the spirit, etc.; review the ninth grade to take up social responsibilities when this knowledge can be linked earthquake relief, the Beijing Olympic Games, Sanlu milk powder incident, moved to China Zhangzhou people moved , youth and other volunteer activities. Third, contact the students the actual practical and social life. Test the proposition in the form of the growing culture of life, and focus on student feelings, attitudes, values, it is close to the actual student life, concerned about the behavior of young people and increase navigation, and an annual examination of the questions most relevant to student life, the new material the main sexual, open, close to the characteristics of real-life questions are very good in the embodiment. Of the adult things are slowly fading, so we at this stage of the review, it is necessary to pay attention to link the social reality, closer to the student life.
Phase II: Thematic Review, concise commentary precision stage. Schedule: mid-April from the County after the first round of quality inspection to the city in May.
First, the order to break the material around the hot current affairs, knowledge of the relevant thematic review. Ideological and moral questions in the examination is open to current political hot spots close to major national and social focus for students and the actual entry points of life, reflecting the sharp ideological and moral course characteristics of the times, the humanistic spirit and the principle of integrating theory with practice. Therefore, we should be good at politics to capture the major hot spots at home and abroad, the focus of attention of society, combined with the knowledge and students practical, embedded in classroom activities, to be an extension of teaching materials and supplementary knowledge. Carefully select a typical example, therefore, carefully edit the hot topics of concern to carefully answer the question of the students, and guide students to use analysis of the knowledge to address the hot issues, focus issues and life issues, and strive to learn by analogy, comprehend by analogy, and gradually increase the students to solve problems independently capacity, so that even in the absence of deliberate examination of the subject review can cope easily.
1, the second phase of review when selected the top ten hot topics: one topic: the two topics, and actively respond to the financial turmoil. Theme II: concerted efforts earthquake relief. Topic three: Focus on Beijing Olympic Games. Four topics: food safety concern. Five topics: cross-strait relations and the tenth anniversary of Macao's return. Six topics: the 30th anniversary of reform and opening-up and the 60th anniversary of the Republic. Seven topics: "God seven" launching and scientific and technological innovation. Eight topics: energy-efficient emission reduction and ecological civilization. Nine topics: concern about the healthy growth of youngsters. 10 topics: love love hometown Zhangzhou. (Note: This topic I have another 10 copies of a detailed interpretation of the material in detail here, I do not start) in each topic can be designed to click on hot spots, combined with the materials, the topic of the direction of the four plates selected examples in the topic Review pay attention to the hot spots at the focus of knowledge and teaching materials related to the internal links to guide students to find a hot current affairs knowledge and the best combination of materials, the choice of typical examples of materials closely, omni-directional, multi-angle, multi-level thinking on the hot current affairs, each topic into a small number of specific issues, big issue, and much smaller. And links students to reality, to student life,. If the topic four: Focus on Beijing Olympic Games may have a point of contact. Psychological perspective: understanding the two sides of emotion, learn to troubleshoot bad mood (Du Li's successes and failures); inevitable setbacks in life, take the face of setbacks (before Liu Xiang injury); Sharpen will learn strong (winning disabled athletes to overcome difficulties gold); Olympic athletes psychological quality which will help us to grow and so on.
2. The legal point of view: the protection of intellectual property rights (intellectual property rights of Olympic products); performance of safeguarding national dignity, honor and interests of obligations (disabled care Yong Jin Jing the torch relay); faithfully to fulfill obligations.
3. Moral point of view: to carry forward the Chinese national spirit (spirit of the Olympic Games: to win glory for the country's patriotic spirit, hard work and dedication, the professionalism of excellence, the innovative spirit of勇攀高峰, solidarity and cooperation of team spirit; the spirit of the Olympic volunteers) develop self-esteem, self-confidence, self-reliance, self-reliance spirit of (the Olympic gold medal winning athletes, the Olympic torch climb Everest); Institute of tolerance (Liu Xiang out of the race on tolerance); to the world of Chinese culture, the director Zhang Yimou's Olympic team; to maintain the dignity of the Olympic flame with disabilities Jin Jing who torch; the flame into the Earth's highest point of the Tibetan torch Gigi; moved has been selected as China's 2008 Person of the Year (responsibility, moral).
4. National perspective: Understanding the Olympic Games opening ceremony (China's international status, increasing overall national strength in the international arena to play an increasingly important role; fully demonstrates the superiority of the socialist system; show a long history and profound traditional Chinese culture; national pride , self-confidence and pride;) adhere to the outside world and protection of resources and the environment of the basic national policy; the implementation of sustainable development through science and education strategies and strategy (the concept of Beijing Olympic Games: Green Olympics, Hi-tech Olympics and People's Olympics)
At the same time, the dynamic current affairs to attend to some hot spots, for example, the last Wenchuan earthquake, the Beijing Olympic Games, the 30th anniversary of reform and opening-up hot spots, such as current affairs, although there is not time to examine the scope of current events, but the proposition is the focus of examination, with special attention to this year is the 60th anniversary of the Republic to mark the 90th anniversary of the May 4th Movement, the 10th anniversary of Macao's return to hot spots such as the dynamic current affairs.
II. Scouring fine commentary. Combined with the city of Cape classroom prepared "test that" inside the simulation seven papers and the "dragons of people" inside the typical study reported refining topics, the training is the ability to turn knowledge into an effective way, through exercises, to improve knowledge of migration of students and response capabilities, and targeted for evaluation, with emphasis on methods of pre-trial questions, problem-solving ideas, and regulate the expression of these questions and so on to guide.
Phase III: return of teaching materials, simulation drill stage. Schedule: from the city to test after the inspection. As students of "open-book test," awareness of the deviation, in the examination of the data have high expectations, usually watered down classes in basic knowledge of learning materials. In addition, part of the open nature of the questions teachers have the misconception that talking about feelings, views, you can put aside their textbooks, arbitrary. Students may also follow the lead from the textbook, answer colloquial, the vernacular, not by political terminology to answer questions, non-standard interpretation, the lack of accuracy and completeness. This will not only undermine the political characteristics of subjects, but also the impact of the dominant political role of teachers. In a lot of test questions come from textbooks, from the materials, which reminds us that this phase of the review, we must guide the students to return to teaching, it is necessary to fully explore and make good use of teaching resources. Of course, this stage can not return to teaching as the first phase of review, the combination of ideological and moral but in the test states that "in the test that" is based on examination of the proposition, in accordance with the "test of that" inside the test requirements, divided into three sections that : I am growing; my relationship with others; I and the collective, social, and countries. Four modules namely: mental health; and moral education; legal knowledge; education. Examination of each module to meet the requirements of the proposition that "the knowledge, abilities, emotional attitude towards the values of" three-dimensional targets, guide the students to return to teaching materials, and let the students know the requirements of each test: including hot links, designed the perspective of prediction questions, directory and guide students to do a good job and let the students know which specific sites where the materials, be aware of.
Secondly, to strengthen the subject of training, improve problem-solving ability. Although we oppose the sea tactical questions, but that a considerable number of topics selected for the training of students in examinations. The final stage of the teacher can request a 1 -2 carefully中考模拟paper copies is necessary to choose the topic and strive to embody the New Curriculum requirements, in line with the examinations that test the proposition in the direction closer to reflect the open, explore, and to do politics, and life , and native of. Students to integrate knowledge, expanding the space of thinking, and strengthen the ability of students to enable students to carry out simulation exercises, in particular in the assessment roll this year, or a form of online marking, the answer sheet of the space is limited, so at this stage,
First, in a simulated exercise to enable students to adapt as soon as possible and timely detection of problems,
Second, it is necessary to help students through training to enhance the capacity of pre-trial questions and learn in a short period of time to find title of eyes, grasping Center, Institute of Lenovo Reading materials of knowledge and skills of all kinds of subject-based organization asked the laws and the laws of the answer, especially the comic book-type and chart type should be to strengthen the training topics.
Third, it is necessary to help students answer through training to minimize the life of the language, learn how to use the political organizations, the answer terms.
Fourth, it is necessary to help students through training to improve the logic of the answer and be rational, be succinct and concise, the level of clear and not wordy lengthy东拉西扯not.
Five open questions through training, students from different angles,

游客2

哈哈哈我的强项,听好

1将相同的..均分为A、B、C..组(第一步分组,注意材料的一致性)
2向A、B、C..置入相同的适宜的..环境中D组置入..中,向....加入等量的....(第二步控制变量,注意环境的相同性、适宜性(可用“一定量”来表示)、实验设计的单一变量原则,都是占分的!!)
3一段时间后记录、观察(第三步后续操作)

注意:生物实验分为验证实验(结论题中已给出)和探究实验(装作不知道结论),一般题目给出;无论什么实验,先看实验目的,一般在原题中有原话;验证实验的实验结论和已给出的实验目的是一样的。格式是“现象,则+实验目的”,探究实验的实验结论需要讨论所有情况,格式是“若…,则…;若…,则…;若…,则…;……”;在实验设计中困弯弊,如果是验证实验,写了如上三项后即可,但如果你闹颂愿意,也可写结论,如果是探究试验,写了如上三项后,必须写第四部实验结论。
例如上个人的实验(假设为验证实验)
1取多组相同的霉菌,均分为A、B、C、D四组,分别放入相同的干燥培养基中培养
2向其中的A、B、C三组中同时分别加入体积依次增大的一定量蒸馏水,D组不加水,将四组放入相同适宜的环境中培养一段时间。
3一段时间后观察四组霉菌生长状况
4A、C、D三组霉菌生长不正常,B组生长正常,则说明,水太多,或没水都不能使其正常生长,且水分适量最适宜霉茵生长
哈!满分!

好好研究研究,包你满分!

这是我回答别人的,也送给你吧~不过这是高汪族三答法,你中考应该也适用?