【填空题】
49.利用潮水涨落产生的水位差所具有的势能来发电的方法是___。
查看试卷,进入试卷练习
微信扫一扫,开始刷题

答案
潮汐发电
解析
暂无解析
相关试题
【单选题】
The word "wag" (Line 1, Para.1) most probably means _________.
A. move
B. shake
C. bite
D. play
【单选题】
The video cameras were used to catch the dogs' responses because ___________.
A. the dogs were put in the wooden boxes
and tested one at a time
B. it was easier to catch the dogs’s response changes in the tail wagging
C. they enabled the dogs’owners to know
about their dogs’; habit
D. the dogs wagged their tails in different
directions when they were in different
moods
【单选题】
When there are no stimuli, a dog will ___________.___
A. wag to the right
B. no wag at all
C. wag to the left
D. wag to the left and then wag to the right
【单选题】
The purpose of doing the experiment is _________.___
A. to train dogs for their owners
B. to help dogs find companion
C. to help people choose their pet dogs
D. to help people judge the mood of dogs
【单选题】
The underlined word "they" in the last sentence refers to __________.___
A. the trainers
B. the systems
C. the researchers
D. the dogs
【单选题】
The new law passed in Rome will ________.___
A. help improve fishing environment
B. stop people from catching goldfish
C. guarantee better conditions for goldfish
D. discourage keeping goldfish at home
【单选题】
People in Rome believe that the civilization of a city can be judged by _________.___
A. awareness of animal protection
B. exchanges with other cities
C. protection of ancient ruins
D. recognition of animal lovers
【单选题】
The underlined word "compassion" in Para 2 is the closest in meaning to __________.___
A. support
B. pity
C. help
D. love
【单选题】
People may break the law in Turin if they ________.___
A. keep their dogs or cats in cars
B. shut their dogs home all day long
C. raise their cats near ancient ruins
D. feed homeless animals in car parks
【单选题】
We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
C. the new law can prevent cruelty to animals
D. the new law gives recognition to the
people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【单选题】
As to the greenhouse effect, the author ________.___
A. share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into
B. make up for
C. set up
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient
B. very expensive
C. quite dangerous
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
【单选题】
According to the passage, whether TV is good or not depends on ___________.___
A. its quality
B. people's attitude towards it
C. how we use it
D. when we use it
推荐试题
【多选题】
以改革创新为核心的时代精神具体体现为___
A. 突破陈规、大胆探索、敢于创造的思想观念,勇于打破与社会和历史发展规律不相吻合的思维方式、行为规范的束缚
B. 不甘落后、奋勇争先、追求进步的责任感和使命感,不自甘落后、故步自封,也不满足于取得的成就,躺在历史的功劳簿上自满自足、裹足不前
C. 坚忍不拔、自强不息、锐意进取的精神状态
D. 固步自封、维持现状思维
【多选题】
下列有关时代精神与民族精神关系的说法,下列正确的是___
A. 民族精神与时代精神紧密关联,都是一个民族赖以生存和发展的精神支撑
B. 民族精神和时代精神的交融汇通,成为中华民族共有的精神家园、奋力实现复兴的强大精神力量。
C. 一切时代精神都将随着历史的变迁逐步融入民族精神的长河之中,不断丰富和发展民族精神的时代内涵
D. 一切民族精神都曾经是一定历史阶段中带动潮流、引领风尚、推动社会发展的时代精神
【多选题】
弘扬新时代的爱国主义,必须团结___,汇集起实现中国梦的磅礴力量。
A. 全体社会主义劳动者
B. 社会主义事业的建设者
C. 拥护社会主义的爱国者
D. 拥护祖国统一和致力于中华民族伟大复兴的爱国者
【多选题】
有关中国共产党的历史,下列叙述正确的是___
A. 党的历史就是一部为实现民族独立的历史
B. 党的历史就是一部人民解放的历史
C. 党的历史就是一部充满了矛盾的历史
D. 党的历史就是一部为实现中华民族伟大复兴而奋斗的历史
【多选题】
实现祖国统一是全体中华儿女的共同心愿,下列正确的是___
A. 理解西方国家的政治干预
B. 保持香港、澳门长期繁荣稳定大好形势
C. 解决台湾问题、实现祖国完全统一
D. 不赞成“一国两制”
【多选题】
关于两岸关系,下列说法正确的是___
A. 和平统一最符合包括台湾同胞在内的中华民族的根本利益
B. 要从中华民族整体利益的高度把握两岸关系大局,在认清历史发展趋势中把握两岸前途,坚持增进互信、良性互动、求同存异、务实进取,促进两岸关系发展取得更多积极成果
C. 努力增进两岸人民福祉,增进对两岸命运共同体的认知,不断拓宽两岸关系和平发展的道路
D. 对“九二共识”持保留态度
【多选题】
在参与经济全球化的过程中,中国应该坚持的态度,下列正确的是___
A. 充分利用经济全球化所提供的机遇发展自己
B. 坚决维护国家的主权和尊严,按照本国国情坚持和发展自己的政治制度和民族文化
C. 服从世界政治一体化和文化一体化
D. 屈从发达国家的价值取向
【多选题】
如何做一个忠诚的爱国者,下列正确的是___
A. 爱国既需要情感的基础,也需要理性的认识,更需要实际的行动
B. 爱国不是简单的情感表达,而是一种理性的行为,要讲原则、守法律,以合理合法的方式来进行
C. 只有把国家的安全、荣誉和利益放在高于一切的地位,始终做到爱国的深厚情感、理性认识和实际行动相一致
D. 与祖国同呼吸、共命运
【多选题】
当代中国的爱国主义继承并发扬了中华文化协和万邦、热爱和平的优秀传统,___。
A. 对内积极倡导社会主义的爱国主义
B. 服从世界政治一体化和文化一体化
C. 对外主张平等互利、和平共处的国际交往原则
D. 积极维护国际和平与文明和谐
【多选题】
在与其他民族同学接触交往中,大学生要做到___
A. 各民族互不沟通
B. 要尊重兄弟民族的传统文化、风俗习惯和宗教信仰
C. 多说有利于民族团结、有利于社会稳定的话,多做有利于民族团结、有利于社会稳定的事
D. 不说伤害民族感情的话,不做不利于民族团结和社会稳定的事
【多选题】
坚定不移贯彻“一国两制”方针,就是___
A. 把维护中央对香港、澳门特别行政区全面管治权和保障特别行政区高度自治权有机结合起来
B. 确保“一国两制”方针不会变、不动摇,确保“一国两制”实践不变形、不走样
C. 要始终依照宪法和基本法办事
D. 给予香港、澳门特别行政区外交权
【多选题】
确立总体国家安全观,必须___
A. 既重视外部安全,又重视内部安全
B. 既重视国土安全,又重视国民安全
C. 既重视传统安全,又重视非传统安全
D. 既重视发展问题,又重视安全问题
【多选题】
我国经济总量跃居世界第二,但大而不强、臃肿虚胖体弱问题相当突出,主要体现在___
A. 科技水平位居世界前列,有力的支持了经济社会发展
B. 创新能力不强,科技发展水平总体不高
C. 科技对经济社会发展的支撑能力不足
D. 科技对经济增长的贡献率远低于发达国家水平
【多选题】
改革创新,要求人们___,在实践中有直面困难的勇气,有突破难关的精神,锐意进取,奋力前行。
A. 自觉增强改革创新的责任感
B. 树立敢于突破陈规、大胆探索未知
C. 保持现状基础上提升效率
D. 勇于创新创造的思想观念
【多选题】
核心价值观是___
A. 一定社会形态社会性质的集中体现
B. 在一个社会的思想观念体系中处于主导地位
C. 体现着社会制度、社会运行的基本原则和社会发展的基本方向
D. 随着时代的发展随时可以变换的精神力量
【多选题】
党的十八大提出的培育和践行社会主义核心价值观的基本内容是___
A. 爱国、敬业、诚信、友善
B. 富强、民主、文明、和谐
C. 自由、团结、和谐、互助
D. 自由、平等、公正、法治
【多选题】
关于社会主义核心价值观,下列叙述正确的是___
A. 与中国特色社会主义发展要求相契合
B. 与国家经济的发展、人民的生活关系不是十分紧密
C. 与中华优秀传统文化和人类文明优秀成果相承接
D. 是中国共产党凝聚全党全社会价值共识作出的重要论断
【多选题】
社会主义核心价值体系主要包括___
A. 马克思主义指导思想
B. 中国特色社会主义共同理想
C. 以爱国主义为核心的民族精神和以改革创新为核心的时代精神
D. 社会主义荣辱观
【多选题】
社会主义核心价值观和社会主义核心价值体系的关系,下列叙述正确的是___
A. 两者是对立矛盾、互相制约
B. 两者是紧密联系、互为依存、相辅相成
C. 社会主义核心价值观是社会主义核心价值体系的精神内核
D. 社会主义核心价值观与社会主义核心价值体系具有内在的一致性
【多选题】
社会主义核心价值观与社会主义核心价值体系具有内在的一致性,都体现了___
A. 社会主义意识形态的本质要求
B. 社会主义制度在思想和精神层面的质的规定性
C. 建设中国特色社会主义现代化强国的价值引领
D. 实现中华民族伟大复兴中国梦的价值引领
【多选题】
推进社会主义核心价值观与社会主义核心价值体系建设,就是要弘扬___,使我们的国家、民族、人民在思想上和精神上强起来,更好地坚持中国道路、弘扬中国精神、凝聚中国力量。
A. 共同理想、凝聚精神力量、引领道德风尚
B. 形成全民族奋发向上、团结和睦的精神纽带
C. 中华传统文化和民族精神
D. 爱国主义和个人主义
【多选题】
社会主义核心价值观把涉及国家、社会、公民的价值要求融为一体,是对___重大问题的深刻解答。
A. 我们要建设什么样的国家
B. 建设什么样的社会
C. 培育什么样的公民等
D. 走什么样的道路
【多选题】
爱国、敬业、诚信、友善,这一价值追求回答了我们要培育什么样的公民的重大问题,涵盖了___等各个方面,是每一个公民都应当遵守的道德规范。
A. 社会公德
B. 职业道德
C. 家庭美德
D. 个人品德