题目

某化学兴趣小组以菱铁矿（主要成分为FeCO3 ， 含有SiO2、Al2O3等少量杂质）为原料制备氯化铁晶体（FeCl3·6H2O）的实验过程如下： （1） 酸溶及后续过程中均需保持酸过量，其目的除了提高铁元素的浸出率之外，还有。 （2） 操作Ⅰ名称是。 （3） 滴加H2O2溶液氧化时，发生主要反应的离子方程式为。 （4） 在氧化过程中，如何检验铁元素全部以Fe3+形式存在：。 （5） 加入过量NaOH溶液的目的是。 （6） 请补充完整由Working with a group of baboons (狒狒）in the Namibian desert, Dr. Alecia Carter of the Department of Zoology，Cambridge University set baboons learning tasks involving a novel food and a familiar food hidden in a box. Some baboons were given the chance to watch another baboon who already knew how to solve the task, while others had to learn for themselves. To work out how brave or anxious the baboons were, Dr. Carter presented them either with a novel food or a threat in the form of a model of a poisonous snake.She found that personality had a major impact on learning. The braver baboons learnt, but the shy ones did not learn the task although they watched the baboon perform the task of finding the novel food just as long as the brave ones did. In effect, despite being made aware of what to do, they were still too shy to do what the experienced baboon did.The same held true for anxious baboons compared with calm ones. The anxious individuals learnt the task by observing others while those who were relaxed did not, even though they spent more time watching.This mismatch between collecting social information and using it shows that personality plays a key role in social learning in animals, something that has previously been ignored in studies on how animals learn to do things. The findings are significant because they suggest that animals may perform poorly in cognitive (认 知的）tasks not because they aren’t clever enough to solve them，but because they are too shy or nervous to use the social information.The findings may impact how we understand the formation of culture in societies through social learning. If some individuals are unable to get information from others because they don’t associate with the knowledgeable individuals，or they are too shy to use the information once they have it，information may not travel between all group members, preventing the formation of a culture based on social learning.1.What is the first paragraph mainly about?A. The design of Dr. Carter’s research.B. The results of Dr. Carter’s research.C.The purpose of Dr. Carter’s research.D. The significance of Dr. Carter’s research.2.According to the research, which baboons are more likely to complete a new learning task?A. Those that have more experience.B. Those that can avoid potential risks.C. Those that like to work independently.D. Those that feel anxious about learning.3.Which best illustrates the “mismatch” mentioned in Paragraph 4?A. Some baboons are intelligent but slow in learning.B. Some baboons are shy but active in social activities.C. Some baboons observe others but don’t follow them.D. Some baboons perform new tasks but don’t concentrate.4.Dr. Carter’s findings indicate that our culture might be formed through.A. storing informationB. learning from each otherC. understanding different peopleD. travelling between social groups