[判断题]测量时,若零度层亮带在有效照射体内,那末雷达估算的降水量必然高于地面真实的降水量.
[问答题]用一句话概括下面这则新闻的主要内容,不超过20个字.7日上午,武林广场人头攒动,许多人手里捏着钱,围着一溜鲜花,正你一声我一声地喊着价……原来这里正在进行杭州市鲜花义拍捐助灾区活动.当天,有近百位居民捐出了百余盆鲜花参加义拍,其中居民朱金凤一人就捐出了18盆.在热烈的气氛中,第一盆杜鹃被茶叶市场的梅宏骥以200元拍走,而一株被“花中城”拿下的金枝玉叶,拍出了800元的全场最高价.据了解,这次义拍最后共拍得善款近万元.这些善款将通过“青基会”捐给西南旱区.
[判断题]瘦肉中含有人体所需要的多种营养物质,所以我们日常饮食应以肉食为主. ( )
[问答题](二)给下列新闻加个标题.从27日开始,一股较强冷空气将影响中国北方地区,中国北方自西向东将出现大范围的大风降温天气过程.中央气象台预计,从27日开始至29日,一股较强冷空气将自西向东影响中国北方大部地区,新疆北部、甘肃西部、内蒙古大部、华北北部、东北等地将有5级左右偏北风,上述地区气温将下降4-8℃,局地降温可达10-12℃.受冷空气影响,中国北方大部地区气温将持续下滑,25℃以上的温暖将逐渐退,西北地区、华北北部和西部的最高气温也将降至20℃以下,人们会感觉潮湿冷.气象专家醒,此次冷空气影响期间正逢国庆节假日节前旅游出行高峰,降雨、降温天气对公众旅游出行安排及交通安全有一定影响,尤其是华南及其沿海地区受冷空气和台风的共同影响,有较强风雨天气,对当地景区及海岛旅游安全可能造成较大影响.小题1:.给上面新闻加个标题小题2:.“从27日开始,一股较强冷空气将影响中国北方地区,中国北方自西向东将出现大范围的大风降温天气过程”一句中两个“将”能否去掉?为什么?
[问答题]力的示意图,通常用线段的起点表示力的 ,箭头的指向表示力的 ,在箭头旁标注力的 .
[填空题]阵阵大风吹弯了小树的腰,大风主要具有______能,被吹弯了腰的小树具有______能.
[填空题]某化学实验小组在实验室用下图装置做CaCO3受热分解的实验.加热一段时间后,同学们对试管内剩余固体的成分进行探究.请你参与探究.[提出问题]加热CaCO3后残留的固体成分是什么[作出猜想]猜想1:CaCO3完全分解,固体成分为?CaO,则反应的化学方程式为______;猜想2:CaCO3未完全分解,固体成分为CaO、CaCO3;猜想3:CaCO3未分解,固体成分为CaCO3.[实验与事实](1)甲同学取少量残留固体于试管中,加适量水振荡后静置,再滴几滴无色酚酞试液,溶液变______色,手摸试管壁感到______.(2)乙同学取少量残留固体于试管中,先加适量水振荡后静置,再滴几滴无色酚酞试液,溶液变红.接着加过量稀盐酸,有气泡生成,该反应的化学方程式是______.反应过程中固体逐渐消失.若把产生的气体通入澄清的石灰水,将会观察到的现象是____________.[结论与交流]甲同学认为猜想1成立,他的结论是______(填“合理”或“不合理”)的.你认为猜想______成立.CaC粉末金属网罩
[问答题](1)画出图1中漂浮在水面的小球所受浮力的示意图;(2)画出图2中入射光线经凸透镜后的折射光线.图
[判断题]只有社会行为的动物之间才有信息交流.
[判断题]维生素既参与构成人体细胞,又能为人体提供能量( )
[填空题]神经调节的基本方式是__________,它又可分为__________和__________两类.
[问答题]鸡蛋上有很多小孔,小孔可以呼出二氧化碳气体,细菌也可以从小孔进入,所以鸡蛋放久了容易变质.如果用石灰水浸泡以后晾干,可以延长鸡蛋的保鲜时间,请你解释其中的原由.
[填空题][实验中的发现]:某化学兴趣小组在一次实验中发现:向澄清石灰水中通入CO2时,开始时石灰水变浑,但一会儿,石灰水又变澄清.[查阅资料]:(1).当二氧化碳通入澄清石灰水中,二氧化碳先与氢氧化钙反应:CO2+Ca(OH)2═CaCO3↓+H2O;若继续通入二氧化碳,过量的二氧化碳会与碳酸钙、水反应,生成可溶于水的碳酸氢钙CaCO3+H2O+CO2═Ca(HCO3)2(2).氢氧化钠与氢氧化钙都属于碱,具有相似的化学性质.[继续探究]:该兴趣小组的同学向100g8%的NaOH溶液中通入CO2一段时间后,低温蒸发结晶,得到白色固体,对该白色固体的成分进行探究.[猜测]:甲同学认为该白色固体可能是NaOH与Na2CO3的混合物.你认为该固体还可能是______?或______或______.[实验验证]:如果甲同学的结论是正确的,请你设计实验证明白色固体中存在NaOH,请将方案填入下表中:实验操作实验现象结论__________________(3)乙同学称量所得白色固体的质量为13.7g,则白色固体的成分是______.
[单选题]用计算器验证,下列不等式中成立的是( )A.sin37°24′>cos37°24′+cos3°10′B.cos45°32′>sin45°-sin1°12′C.sin63°47′<cos18°21′-cos87°D.2sin30°12′<sin60°24′
[判断题]珊瑚是生物. ( )
[阅读理解]As prices and building costs keep rising , the “do-it-yourself”(DIY) trend(趋势)in the USA continues to grow .“We needed furniture for our living rooms ,” says John Ross , “and we just didn’t have enough money to buy it . So we decided to try making a few tables and chairs .” John got married six months ago , and like many young people these days , they are struggling to make a home at a time when the cost of living is very high .The Rosses took a 2-week course for $280 at a night school .Now they make all their furniture and repairs around the house .Jim Hatfield has three boys and his wife has died .He has a full-time job at home as well as in a shoe making factory .Last month, he received a car repair bill for $420 . “I was deeply upset about it .Now I’ve finished a car repair course .I should be able to fix the car by myself .”John and Jim are not unusual people .Most families in the country are doing everything they can to save money so they can fight the high cost of living. If you want to become a “do-it-yourself”, you can go to DIY classes .And for those who don’t have time to take a course, there are books that tell them how they can do things themselves.We can learn from the passage that many newly married people ______ .John and his wife went to evening classes to learn how to _______ .When the writer says that Jim has a full-time job at home ,he means Jim___ .Jim Hatfield decided to become a do-it-yourself when he found _____ .take DIY courses run by the government,have to learn to make their own furniture,find it hard to pay for what they need,seldom go to a supermarket to buy things,take DIY courses run by the government,have to learn to make their own furniture,find it hard to pay for what they need,seldom go to a supermarket to buy things,run a DIY shop,save time and money,make or repair things,improve their life,run a DIY shop,save time and money,make or repair things,improve their life,makes shoes in his home,does extra work at night,repairs his own car at home,keeps house and looks after his children,makes shoes in his home,does extra work at night,repairs his own car at home,keeps house and looks after his children,his car repairs cost too much,the car repair class was not helpful,he could not possibly do two jobs,he had to raise the children all by himself,his car repairs cost too much,the car repair class was not helpful,he could not possibly do two jobs,he had to raise the children all by himself
[问答题]写作(45分)请从下面两题中任选一题作文.小题1:题目:快乐接力小题2:我的我做主温馨提示:①半命题作文题目须补全,题目都须写在作文纸上.②文体不限,抒写真情.③字数600字以上.
[问答题]解不等式组:x+3>0(1)2(x-1)+3≥3x(2),并判断x=32是否满足该不等式组.
[单选题]读“六大板块示意”图,据此回答问题.需长边界亡边界来宠抵块边界块沙界受力方向·抵块增劲方以洲抵块力顺1.赤道穿过的板块一共有多少个2.关于板块构造学说,叙述正确的是3.下列各地中,位于板块生长边界上的是A.3B.4C.5D.6E.板块挤压形成山脉,板块张裂形成海沟F.全球地壳分为六大板块G.板块内部比较稳定,板块边界活跃H.根据受力方向,板块边界可以分为生长边界、消亡边界、未定板块边界I.美洲科迪勒拉山系G.喜马拉雅山脉大西洋海岭东亚岛弧链
[填空题]汽车关闭发动机后,仍能继续向前行驶一段路程,是因为汽车具有 的缘故,但最后还是会停下来,是因为汽车受到 的缘故.
[阅读理解]Do you know what are good manners (礼貌) In fact , having good manners is1in different countries . In some Asian countries , it is good manners to take off your 2before you go into a house .3in European countries , even if they sometimes are very dirty, this is not done. If you are a guest (客人)in a Chinese house , when you have a meal , you usually do not4food . You often leave a little to show that you have had5. But in England , a guest always finishes food to show that he6it . We must know the customs (风俗) of other countries , so that they will not think7bad--mannered . People all over the world8that a well—mannered person should be kind and9to others. If you remember this , at least you will not go far wrong . Everybody likes a person10good manners , and no one likes a person with bad manners. Keep your manners, please .the same,different,the good,wrong,the same,different,the good,wrong,hat,coat,shoes,glasses,hat,coat,shoes,glasses,So,If,But,Although,So,If,But,Although,buy,cut up,eat up,cook,buy,cut up,eat up,cook,enough,most,more,little,enough,most,more,little,hates,takes,enjoys,forgets,hates,takes,enjoys,forgets,him,us,me,them,him,us,me,them,agree,guess,invent,find,agree,guess,invent,find,strict,helpful,careful,hard-working,strict,helpful,careful,hard-working,for,to,in,with,for,to,in,with