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【单选题】
Are You Getting Enough Sleep? What happens if you don't get enough sleep? Randy Gardner,a high school student in the UnitedStates,wanted to find out. He designed an experiment on the effects of sleeplessness for a school science project. With doctors watching him carefully,Gardner stayed awake for 264 hours and 12 mi-nutes. That's eleven days and nights without sleep ! What effect did sleeplessness have on Gardner? After 24 hours without sleep, Gardner started havingtrouble reading and watching television The words and pictures were too blurry(模糊). By the third day,hewas having trouble doing things with his hands. By the fourth day, Gardner was hallucinating(产生幻觉). Forexample,when he saw a street sign, he thought it was a person. He also imagined he was a famous footballplayer Over the next few days,Gardner's speech became so slurred(楚)that people couldn't understandhim He also had trouble remembering things. By the eleventh day,Gardner couldn't pass a counting test. Inthe middle of the test he simply stopped counting. He couldn't remember what he was doing. When Gardner finally went to bed, he slept for 14 hours and 45 minutes. The second night he sleptfor twelve hours, the third night he slept for ten and one-half hours,and by the fourth night, he had re-turned to his normal sleep schedule. Even though Gardner recovered quickly, scientists believe that going without sleep can be danger-ous. They say that people should not repeat Randy's experiment. Tests on white rats have shown howserious sleeplessness can be. After a few weeks without sleep,the rats started losing their fur(皮毛).And even though the rats ate more food than usual, they lost weight. Eventually the rats died. During your lifetime,you will probably spend 25 years or more sleeping. But why? What is thepurpose of sleep? Surprisingly,scientists don't know for sure. Some scientists think we sleep in orderto replenish(补充)brain cells. Other scientists think that sleep helps the body to grow and to relievestress. Whatever the reason,we know that it is important to get enough sleep. Randy Gardner studied the effects of over-sleeping.
A.
Right
B.
Wrong
C.
Not mentioned
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举一反三
【单选题】下列关于课文的表述,有误的一项是
A.
《八声甘州》抒写了怀念家乡的凄苦心情,抒发了漂泊江湖的愁思和仕途失意的悲慨。
B.
《青玉案•元夕》表现了词人矢志不移,宁可过寂寞的闲居生活,也不肯与投降派同流合污的高洁志向和情怀。
C.
《静女》模拟女孩的口吻,采用第一人称的手法写成。
D.
《琵琶行  并序》大量运用比喻,化抽象无形为具体可感,巧用叠词,使音节悦耳动听富有节奏感。
【单选题】下列织物中不属于丝织物是: ( )
A.
电力纺
B.
府绸
C.
织锦缎
D.
塔夫绸
【单选题】下列关于课文的表述,有误的一项是()
A.
《八声甘州》抒写了怀念家乡的凄苦心情,抒发了漂泊江湖的愁思和仕途失意的悲慨。
B.
《青玉案•元夕》表现了词人矢志不移,宁可过寂寞的闲居生活,也不肯与投降派同流合污的高洁志向和情怀。
C.
《静女》模拟女孩的口吻,采用第一人称的手法写成。
D.
《琵琶行并序》大量运用比喻,化抽象无形为具体可感,巧用叠词,使音乐悦耳动听富有节奏感。
【单选题】下列关于课文的表述有错误的一项是( )
A.
《八声甘州》抒写了怀念家乡的凄苦心情,抒发了漂泊江湖的愁思和仕途失意的悲慨。
B.
《青玉案•元夕》表现了词人矢志不移,宁可过寂寞的闲居生活,也不肯与投降派同流合污的高洁志向和情怀。
C.
《静女》模拟女孩的口吻,采用第一人称的手法写成。
D.
《琵琶行 并序》大量运用比喻,化抽象无形为具体可感,巧用叠词,使音节悦耳动听富有节奏感。
【多选题】下列哪些属于丝织物( )
A.
双绉
B.
巴里纱
C.
素绉缎
D.
织锦缎
【单选题】下列关于听课的表述,错误的是()。
A.
听课是一种技能和方法
B.
是教学研究的重要手段
C.
听课是目的
D.
是教师相互交流、相互学习和促进自我反思的重要途径
【多选题】数据产生方式大致经历了三个阶段()
A.
运营式系统阶段
B.
用户原创内容阶段
C.
感知式系统阶段
D.
移动互联网数据阶段
【单选题】走了6.3千米,一共花了()元。
A.
7+6=13(元)
B.
7+7=14(元)
C.
6元
【单选题】被徐悲鸿视为至宝,并被印上“悲鸿生命”印章的画作是()。
A.
《洛神图》
B.
《朝元仙仗图》
C.
《八十七神仙卷》
D.
《百鬼夜行图》
【单选题】()被徐悲鸿视为至宝,并被印上“悲鸿生命”印章。
A.
《朝元仙仗图》
B.
《八十七神仙卷》
C.
《洛神图》
D.
《百鬼夜行图》
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