【题目】阅读下面材料,请概括宇宙诞生之初的四个阶段。(每点不超过8字)
按照一种颇有影响的理论的推测,宇宙之初是以一种无法想象的高速急剧膨胀。高速行驶的汽车突然急刹车,轮胎同地面摩擦会发热,这是汽车行驶的动能转化为热能的缘敌。同样,在膨胀停止时也会发生这种能量转移,这种灼热状态被称为大爆炸。随着温度的下降,原来分散地飞来飞去的基本粒子互相结合,诞生出质子和中子。温度下降到大约10亿度时,质子和中子互相结合,形成较大的原子核,宇宙中的氦元素和锂元素就是通过这样的核聚变反应合成出来的。像太阳这样的恒星也要靠核聚变反应合成元素产生能量来发出光和热。
第一阶段: 第二阶段:
第三阶段: 第四阶段:
科目:高中地理 来源: 题型:
【题目】某校高一年级500名学生中,血型为O的有200人,血型为A的有125人,血型为B的有125人,血型为AB型的有50人.为了研究血型与色弱的关系,要从中抽取一个容量为40的样本,应如何抽样?写出血型为AB型的抽样过程.
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科目:高中地理 来源: 题型:
【题目】请仿照例句另写一句话。要求语意连贯,修辞方法相同,句式一致。
时间是一本书,记载着历史,书写着现实,展望着未来,沧桑变幻中总能留给人们刻骨铭心的文字。
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科目:高中地理 来源: 题型:
【题目】
根据旬意及首字母或汉语提示写出单词
【1】 We c to the manager that the room was too noisy.
【2】 I was amazed that how w she was in front of the television camera.
【3】I believe what I have u is only a small part of the incident and I will continue to search for the whole.
【4】 The government takes some measures to protect the (历史的)sites and buildings.
【5】The (解决办法)to the problem isn't found yet.
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科目:高中地理 来源: 题型:
【题目】函数y=sin2x+2sin xcos x+3cos2x的最小正周期和最小值分别为( )
A.π,2- B.π,0
C.2π,0 D.2π,2-
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科目:高中地理 来源: 题型:
【题目】There are a number of languages spoken throughout the world. Every person knows at least one language, which he learns in his childhood and is routinely used for speaking and writing. However, many people are fond of learning two or more languages, so they try to be bilingual, which means that they try to have the knowledge of two or more languages. And being bilingual can bring a person a number of benefits in various aspects. For example:
A person can get cognitive(认知的) benefits from it. The bilingual people have two or more words for each idea and object. Therefore, a bilingual person can develop a creative thinking. The bilinguals are aware of which language should be spoken with which person in a particular situation. So they are more sensitive(敏感的) to the needs of the listener than the people who only use one language: Being bilingual also improves and enriches a person's mental development.
Being bilingual has a positive effect on a person's character. The bilinguals are able to switch between different languages and talk to different people in various languages. It increases a sense of self-esteem( 自尊). Being bilingual creates a powerful link in different people from different countries.
A bilingual education offers better curriculum results. The bilinguals tend to show a higher performance in examinations and tests. The bilinguals find it quite easy to learn and speak three, four or more languages.
Being bilingual offers potential employment benefits. It offers a wider choice of jobs in various fields. The bilinguals can get a great many career opportunities in transport, tourism, public relations, marketing and sales, banking, translation, law, teaching and so on.
So it can be concluded from the above that we should try our best to learn and master two or more languages.
Title: 【1】__________ of being bilingual
【2】_______ | Having the knowledge of two or more languages. | |
Benefits | Cognition | ● Make a person think 【3】__________. ● Make a person more sensitive to the listener's 【4】__________. ● Improve and enrich a person's mental development. |
【5】______ | ● Increase a person's sense of 【6】________. ●Create a powerful link in different people from different countries. | |
Curriculum | ● Enable a person to 【7】_____ better in examinations and tests. ● Make a person easily learn and speak more languages. | |
【8】_______ | ● Offer a person more 【9】__________ in finding jobs. | |
【10】_______ | We should try our best to learn and master two or more languages. |
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科目:高中地理 来源: 题型:
【题目】
______puzzled Li Lei a lot was ______his best friends didn’t come to school this morning. (2012-2013.安徽宿州十三校期中)
A. That; why
B. That; what
C. What; whether
D. What; why
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科目:高中地理 来源: 题型:
【题目】下列各句中对加横线词的解释,不正确的一项是( )
A.予怀怆然 怆然:悲伤的样子
B.煮芹烧笋饷春耕 饷:用食物款待别人
C.难赋深情 深情:深厚的感情
D.身向榆关那畔行 向:朝着
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