2022英语周报高二课标新教材。答案

第三部分写作第一节【写作指导】审题本题属于应用文写作中的邀请信立意写作时使用第一人称和第二人称,时态以一般将来时为主首段陈述写邮件的目的;中间段介绍讲座的写作时间、地点和内容,并说明邀请理由;最后思路几谋篇一段表达期待布局冂注意:考生也可以灵活安排每段的写作内容,但不可以遗漏要点推荐根据构思好的提纲确定写作可能用到的表达,表达to: invite, attend a lecture, waste food, raiseone' s awareness of等【佳作展台】Dear MikeI am writing to invite you to attend a lecture about Clear Your plateThe lecture is to be held in our school hall at 2: 30 pm nextThursday. It will be given by our headmaster, who will tell us the reasonsfor launching the campaign. Besides, he will talk about various activitiesto be carried out which are aimed at raising students awarenessof savingI think the lecture can help us have a better understanding of the campaignand form the habit of saving.i do hope you can join me. Please write back soonYours.Li hua亮点梳理】本文开篇点明写邮件的目的,接着详细介绍了此次讲座的相关情况,最后表达期望,内容完整,语勺流畅,同时使用了亮点词汇和句子。亮点词汇:atnd, launch, carry out, be aimed at, raIse one'sawareness of, have a better understanding of =o亮点句式:①非限制性定语从句 who will tell us the reasons forlaunching the campaign②强调句 i do hope you can join me

16.7【试题情境】本题是综合性题目,属于探索创新情境,具体是数学探究情境【关键能力】本题考查逻辑思维能力、运算求解能力【解题思路】先确定函数的奇偶性和周期,再作图象,数形结合即可得解【解析】由f(x)+f(-x)=0知f(x)是奇函数,又当x≤0时,f(1+x)=f(x),所以f(x)在(-∞,0]上是周期为1的周期函数令F(x)=0得f(x)=x1,结合当x∈(0,1)时,/(x)=x,作出函数y=(x)和y=x1的大致图象如图所示数形结合可知函数y=f(x)和y=1,的图象在[-4,5]上有7个交点,即函数F(x)=(x-1)f(x)-1在[-45]上有7个零点引解后反思》解决本题需注意以下几点:(1)会转化即会将函数的零点问题转化为曲线的交点问题;(2)会作图,即会作出函数y=f(x)和的大致图象;(3)会观察,即会利用数形结合思想观察,得到函数F(x)在[-4,5]上的零点个数

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