[判断题]水汽图上色调愈白,表示水汽越少,色调越黑,水汽越多.
[问答题]阅读文言文. 山不在高,有仙则名.水不在深,有龙则灵.斯是陋室,惟吾德馨.苔痕上阶绿,草色入帘青.谈笑有鸿儒,往来无白丁.可以调素琴,阅金经.无丝竹之乱耳,无案牍之劳形.南阳诸葛庐,西蜀子云亭.孔子云:何陋之有! 1.解释下列词语在文中的含义. (1)丝竹:__________________.(2)案牍:____________________.
[问答题]文言文阅读,完成第1—4题.
[问答题]阅读理解. 船头坐三人,中峨冠而多髯者为东坡,佛印居右,鲁直居左.苏、黄共阅一手卷.东坡右手执卷端,左手抚鲁直背.鲁直左手执卷末,右手指卷,如有所语.东坡现右足,鲁直现左足,各微侧,其两膝相比者,各隐卷底衣褶中.佛印绝类弥勒,袒胸露乳,矫首昂视,神情与苏、黄不属.卧右膝,诎右臂交船,而竖其左膝,左臂挂念珠倚之.珠可历历数也. 1.下列字词的用法与其他三个不同的一项是
[单选题]农业科技人员向农民建议:利用温室进行植物生产时,可向温室内通人适量的二氧化碳,促进农作物增产,这是因为A.施用后可防止火灾B.二氧化碳可使害虫窒息死亡从而防治病虫害C.施用后可促进植物的光合作用D.二氧化碳可产生温室效应从而提高室温
[单选题]羽毛球运动中蕴含着许多力学知识,下列说法正确的是A.球拍对羽毛球的作用力大于羽毛球对球拍的作用力B.羽毛球的惯性小,所以容易来回抽杀C.羽毛球在空中运动时,仍受球拍的力D.球拍击球时,只改变了羽毛球的运动方向
[填空题]某国产骄车每行驶100km消耗10L汽油,汽油的密度为0.72×103 kg/m3,则汽车行驶50km消耗的汽油的质量为 kg.当该汽车以50kW的功率,在平直公路上以72km/h的速度匀速行驶时,它所受到的阻力 N.
[填空题]薯类、米饭、面条等食物中含有较多的 ,它是最主要的 ;肥肉、花生中含有较多的 ;鱼肉蛋奶中含较多的 .
[判断题]生物对环境的影响都是有利的.
[填空题]除病毒以外,生物都是由___________构成的.
[判断题]人体生命活动需要的能量,主要来自于脂肪.
[阅读理解]For hundreds Of years, scientists have been trying to answer what things have an effect on people’s emotions (情感). How you feel is controlled by many things. Your emotions can be affected by your personality, by the actions of others and by events around you. Perhaps you don’t know your emotions can be influenced by the weather as well. People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are natural chemicals (化学物质) which we all need to stay healthy. Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical. This special chemical affects our brains (大脑) and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical which makes them feel good. To help the people in these countries feel better, special “sunrooms” with artificial (人造的) lights have been built. People can go there and get “sunlight” for an hour or two!The weather can also affect people’s emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemicals which control our brains. Through these ways, the weather can influence our emotions. Sadly, while the weather can change us, we can hardly change the weather.Which of the following is NOT mentioned as a factor (因素) that can affect one’s emotions Which of the following is true about vitamin D according to the passage What can we infer (推断) from the passage What may be the best title for this passage Weather.,Actions of others.,Personality.,Age.,Weather.,Actions of others.,Personality.,Age.,It is a kind of artificial chemical.,It makes us worried by affecting our brains.,It is needed by us all to keep fit.,It is in the sunlight.,It is a kind of artificial chemical.,It makes us worried by affecting our brains.,It is needed by us all to keep fit.,It is in the sunlight.,We feel good when we are in the bright cool weather.,We will be happy when we are caught in the rain.,All people in Norway and Sweden feel sad in winter.,The more vitamin D you have, the happier you’ll be.,We feel good when we are in the bright cool weather.,We will be happy when we are caught in the rain.,All people in Norway and Sweden feel sad in winter.,The more vitamin D you have, the happier you’ll be.,Why Do We Feel Sad ,The Weather Influences People’s Emotions,People Need More Vitamin D,We Can Hardly Change the Weather,Why Do We Feel Sad ,The Weather Influences People’s Emotions,People Need More Vitamin D,We Can Hardly Change the Weather
[问答题]图中漂浮的乒乓球受到两个力的作用,请画出该球的受力示意图.
[问答题]充分展示自己的个性,给自己写一句广告词.______________________________________________
[填空题]图甲中小钢球从轨道滑下后靠近磁铁时.看到的现象是 ;图乙中,小钢球从轨道滑下后,如果在与小钢球运动方向垂直的位置放一块磁铁,看到的现象是 .以上实验说明力可以使物体速度的 和 发生改变.乙
[单选题]读世界某地区图,完成问题.1.通过A海峡货轮运输的矿产主要是2.该区具有航运和战略重要地位的水道是A.铁矿石B.煤炭C.锡矿石D.石油E.苏伊士运河F.巴拿马运河G.直布罗陀海峡H.白令海峡
[单选题](-2)2的平方根是A.2B.-2C.±D.±2
[单选题]读下边漫画,回答以下小题.不国中国式1.对“中国式剩宴”说“不”的理由是①浪费可耻②产生大量垃圾③耗费宝贵资源④共同富裕还没有实现2.下列做法对杜绝和减少“中国式剩宴”有益的是①大力发展生产力②控制人口数量③尽快制定反浪费方面的法律法规④通过媒体曝光浪费现象A.①④B.②③C.①②④D.①②③E.①②F.③④G.①②④H.①③④
[填空题]利用农田蜘蛛或在农田里放养青蛙等方法来防治农业害虫,这种防治农业害虫的方法称为 ;这样做可以减少 ,防止 .
[单选题]下图是“世界部分地区简图”,读图回答题.30·60°90°120°150°180°8亚洲4001.与亚洲在陆地上接壤的大洲是2.亚洲与其他大洲的分界线中,不包括的是3.下列国家中地跨亚非两洲的是4.如果该图比例尺为1∶100000000,量得亚洲最东端到最西端的图上距离约为10厘米,则它们的实地距离约为A.欧洲、非洲B.非洲、北美洲C.欧洲、北美洲D.欧洲、大洋洲E.苏伊士运河F.土耳其海峡G.马六甲海峡H.白令海峡I.印度G.土耳其俄罗斯埃及100千米1000千米10000千米5000千米
[填空题]请同学运用所学知识,结合下图,分析公式“有机物(储存能量)+氧气——→二氧化碳+水+能量(分解有机物,释放能量)”.并回答相关问题:3④⑤6②⑴该公式表示人体进行 作用的生理过程.公式中氧气和二氧化碳进出的通道是[3] ,进行气体交换的重要器官是[ ].⑵公式中的有机物是人体通过消化吸收作用获得的,消化吸收的主要器官是[ ]小肠,因为小肠内有胰腺分泌的胰液、肠腺分泌的肠液和[ ]分泌的胆汁等多种消化液,且内表面积大.⑶有机物和氧气由血液运输,最终进入细胞的 内被氧化分解.血液循环包括 和 ,这两条循环路线的起点和终点都是[ ].