高考每日一练（2019/9/21）

第1题：乳糖操纵子的直接诱导物是( )。 A．β-半乳糖苷酶 B．乳糖 C．葡萄糖 D．半乳糖

【单选题】： A     B     C     D

第2题：Opinion polls are now beginning to show an unwilling general agreement that, whoever is to blame and whatever happens from now on, high unemployment is probably here to stay. This means we shall have to find ways of sharing the available employment widely. But we need to go further. We must ask some fundamental questions about the future work. Should we continue to treat employment as the norm Should we not rather encourage many other ways for self-respecting people to work Should we not create conditions in which many of us can work for ourselves, rather than for an employer Should we not aim to revive the household and the neighborhood, as well as the factory and the office as centers of production and work The industrial age has been the only period of human history in which most people’s work has taken the form of jobs. The industrial age may now be coming to an end, and some of the changes in work patterns which it brought may have to be reverseD、This seems a discouraging thought.But, in fact, it could offer the prospect of a better future for work. Universal employment, as its history shows has not meant economic freedom. Employment became widespread when the 17th and 18th centuries made many people dependent on paid work by depriving them of the use of the land, and thus of the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people’s homes. Later, as transport improved, first by rail and then by road, people traveled longer distances to their places of employment until, eventually, many people’s work lost all connection with their home lives and the places in which they liveD、 Meanwhile, employment put women at a disadvantage. It became customary for the husband to go out to paid employment, leaving the unpaid work of the home and family to his wife. All this may now have to change. The time has certainly come to switch some effort and resources away from the impractical goal of creating jobs for all, to the urgent practical task of helping many people to manage without full-time jobs. What idea did the author derive from the recent opinion polls A、Available employment should be distributed to a small percentage of the population. B、New jobs must be created in order to rectify high unemployment figures. C、Jobs available must be distributed among more people. D、The present high unemployment figures are a fact of life.

【单选题】： A     B     C     D

第3题：1943年，中、美、英三国举行开罗会议，发布《开罗宣言》，宣言要求日本归还中国的领土。代表中国与会的是 A、国民政府 B．中华苏维埃政府 C．北洋政府 D．中华人民共和国政府

【单选题】： A     B     C     D

第4题：Wind is now the world’s fastest growing ________ of power. A、source B．sense C．result D．root

【单选题】： A     B     C     D

第5题：某企业采用直线职能制的组织结构，企业中共有管理人员42人，其中厂长1人，车间主任4人，班组长18人，职能科长3人，科员16人。每一岗位均不设副职。这时，厂长的管理幅度为______。 A．4人 B、7人 C、22人 D、23人

【单选题】： A     B     C     D

第6题： A． B． C． D．

【单选题】： A     B     C     D

第7题： A． B． C． D．

【单选题】： A     B     C     D

第8题：What subject does the man like best A、History. Biology. Chemistry.

【单选题】： A     B     C     D

第9题：(20分)肥胖与遗传密切相关，是影响人类健康的重要因素之一。 目前认为，人的体重主要受多基因遗传的控制。假如一对夫妇的基因型均为AaBb( A、B基因使体重增加的作用相同且具累加效应，两对基因独立遗传)，从遗传角度分析，其子女体重超过父母的概率是 __________ ，体重低于父母的基因型为 __________ 。

【分析题】：

第10题：“自动稳定器”是一种经济调节机制，具有自动稳定宏观经济运行的功能：在经济繁荣时会自动抑制经济增长，在经济衰退时会自动促进经济增长。下列选项能够体现“自动稳定器”功能的是 A、税务总局实施部分服务业营业税改征增值税，降低企业税负 B．因经济繁荣职工收入提高，个人所得税税率进入更高等级 C．政府加快推进新型城镇化战略，促进经济健康可持续发展 D．中央银行为应对经济下行，降低商业银行存款准备金率

【单选题】： A     B     C     D