| 高考每日一练（2019/7/2） |
| 第1题：People all over the world today are beginning to hear and learn more and more about the problem of pollution. Pollution is caused either by man’s release of completely new and often artificial (人造) substances into the environment, or by releasing greatly increased amounts of a natural substance (物质), such as oil from oil tankers into the se A、 Whatever its underlying reasons, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments would make more efforts. In the home there is an obvious need to control litter and waste. Food comes wrapped up there or four times in packages that all have to be disposed of; drinks are increasingly sold in bottles or tins which cannot be reuseD、 This not only causes a litter problem, but also is a great waste of resources, in terms of glass, metal and paper.Advertising has helped this process by persuading many of us not only to buy things we neither want nor need, but also to throw away much of what we do buy. Pollution and waste combine to be a problem everyone can help to solve by cutting out unnecessary buying, excess use and careless disposal (处理) of the products we use in our daily lives. What does the underlined word "litter" mean in paragraph two A、Not many.B、Serious problem. C、Bits of waste things.D、Industrial pollution. |
| 【单选题】： |
第2题： A． B．  C．  D．  |
| 【单选题】： |
第3题：(本题满分14分)本题共有2个小题，第1小题满分6分，第2小题满分8分．   |
| 【分析题】： |
| 第4题：在解决问题过程中，对解答问题有启示作用的相类似的事物叫______。 A．原型 B、原型启发 C、问题情境 D、定势 |
| 【单选题】： |
第5题： 细胞膜主动转运的特点是
|
| 【单选题】： |
| 第6题：下列说法中，全都不符合历史史实的是( )。 ①唐朝时期，有“海东盛国”美誉的是日本 ②东突厥灭亡，其首领颉利可汗被俘发生在唐太宗时期 ③8世纪中期，控制东自黑龙江，西到阿尔泰山广大地区的民族是回纥 ④我国第一部系统的史学理论著作是刘禹锡的《史通》 ⑤我国第一部记述典章制度的专史是《通典》 A．①③⑤ B．①④ C．②③④⑤ D．②③④ |
| 【单选题】： |
| 第7题：The riot is said ______ by the government’s negligence of the people’s welfare. A、to have been caused B、being caused C、to be caused D、to cause |
| 【单选题】： |
| 第8题：商代青铜器物，特别是礼器，大都造型美观，纹饰工巧。各种青铜器上的主体花纹是“( )”。 A．云雷纹 B．回纹 C．波浪纹 D．饕餮纹 |
| 【单选题】： |
第9题：如图所示，楔形木块abc固定在水平面上，粗糙斜面ab和光滑斜面bc与水平面的夹角相同，顶角b处安装一定滑轮。质量分别为M、m(M>m)的滑块,通过不可伸长的轻绳跨过定滑轮连接，轻绳与斜面平行。两滑块由静止释放后，沿斜面做匀加速运动。若不计滑轮的质量和摩擦，在两滑块沿斜面运动的过程中 A．两滑块组成系统的机械能守恒B．重力对M做的功等于M动能的增加 C．轻绳对m做的功等于m机械能的增加 D．两滑块组成系统的机械能损失等于M克服摩擦力做的功 |
| 【多选题】： |
| 第10题：14，在中性或弱酸性介质中，K+与亚硝酸钴钠作用，生成( )晶形沉淀。 A．红色 B．绿色 C．黄色 D．蓝色 |
| 【单选题】： |
