have for lunch 为什么用 for

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• 英语：请用一般现在时介绍你一天的活动（usually）①get up,at 6:00am ②have breakfast,at 7:00am ③go to school,at 7:30am④run,at 10:00am ⑤have lunch,at 12:00 ⑥go home,at 6:00 pm⑦have supper,at 7:00 pm ⑧do homewoke,from 7:30 to 10:00pm⑨go to bed,at 10:30pm开头已给出：on weekdays, I usually get up.请将上面的的题目改为介绍Jim一天的日常活动，请注意单数第三人称谢谢各位了 帮帮忙吧 作业非常多 写不完 快快快
• 句型转换 1.He often gets up [at 7:00].【对括号部分提问】 2.What's the time?【改为同义句】3.We [have lunch] at twelve o'clock.【对括号部分提问】4.Tom plays sports after school.【改为否定句】5.Jim goes to school at 7:00 every day.【改为一般疑问句】
• 已知数列｛an}的通项公式为an=(n+2)*(9/10)^n,试问n取何值时,an取最大值?试求出最大值.为什么用an/a（n-1）,算的是当n=7时有最大值;而用a（n+1）/an,算的是当n=8时有最大值.算的方法如下：（是不是方法错啦?）an=(n+2)*(9/10)^n a(n+1)=(n+3)*(9/10)^(n+1) a(n+1)/an=[(n+3)*(9/10)^(n+1)]/[(n+2)*(9/10)^n] =9(n+3)/[10(n+2)] 当a(n+1)/an≥1时,说明an是递增数列 即9(n+3)/[10(n+2)]≥1 解得n≤7,即an在n≤7时是递增的,在n>7时是递减的 所以an在n=7时an最大a7=9*(9/10)^7=9^8/10^7
• 英语：be away from get back to sp come back to sp return to sp by the lake leave sp leave for sp leave sth at/in I have a toothache（该同义句） -------------------------------------------------- How many teachers are there in your school?About two __________________________数学：小明在公路上行走 速度是每小时6km 一辆车身长20m的汽车从背后驶来 并从小明身旁驶过 驶过小明身旁的时间为1.5s 则汽车的速度是?（写出过程及说明道理）
• 初二英语书面表达.紧急!星期六早晨,妈妈要出门.她不想叫醒正在熟睡的小明,便决定给小明写一张便条.安排一下他起床后要做的事,请根据所给提示完成便条、 开头和结尾已给出、 提示词汇：clean the floor,cook breakfast and lunch,do the dishes,feed the cat,red some english books,listen to some english tapes 提示句型： Would you mind. Could you please? You have to. Please.Dear Xiaoming, You father is busy working .I’m going to visit your grandpa today and. Love Mo
• 三道高中水平的英语问题第一问：the sharks have attacked a number of people 【off】 the beach of America,some of them a re seriously injured.我想请问这里的off是什么用法?是不是输入错误了?如果说是attack .off,那么后面的作为地点,应该充当地点状语,但是名词不可能直接充当状语.如果说这个off和后面的名词搭配作介词,构成地点状语的,那么请问这个off应该怎么理解呢?=第二问：they started off late and got to the airport with minutes to （spare/leave）答案是spare,因为网上说spare有剩余,多出的意思.但leave不是也有剩余,剩下的意思吗?为什么不能用呢?=第三问：Unlikey,they had a 【flat tire】 on the way back.flat和tire各自是什么意思?它们在此处各自的意
• ···is this passage probably taken from?中为什么用taken这过去分词,不是没have么?Which section of a newspaper is this passage probably taken from?中为什么用taken这过去分词,不是没have么?
• 1.____________ pen is that?Linda's.2.____________ is the girl?Linda.3.____________ is the cat?White.4.____________ are the the buses?In front of the school building.5.____________ pictures are there on the wall?Four.6.____________ is Tom?He's a pupil.7.____________ are these?Red apples.8.____________ do you have lunch?At twelve o'clock.9.____________ are you late,boy?My alarm clock doesn't work.10.___________ did you go to school?By bus.11.___________
• 英语翻译that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion.take可翻译为“获得”或者“感到”或者“承担”,devontion可翻译为“热爱”或者“献身”,名词.那是不是英翻译成：从这些光荣的死者身上我们获得了对*事业的更大的热诚,因为他们为此献出了自己宝贵的生命.我感觉这样还顺耳一点.百度上的两种翻译总是让我感觉有点怪怪的,百度百科：自光荣的亡者之处吾人肩起其终极之奉献.表面看没什么,但是take increased devotion好像没翻译出来.另一个版本：我们要从这些光荣的死者身上汲取更多的献身精神,来完成他们已经完全彻底为之献身的事业.这个还行,但我觉得devotion不能作“献身精神”,因为很少看到别的句子有这个意思,难道还有You have a lot of devotion（你很有献身
• 万有引力的物理题地球赤道上放置的物体,随地球自转的线速度为v1,近地卫星绕地球自转的线速度为v2..求v1：v2=我的问题是..为什么用万有引力等于mv^2/r..就是错的
• ————,————.儿童急走追黄碟,飞入菜花无处寻.
• for lunch 与 eat/have lunch的区别she doesn't go home ____lunch.答案是for lunch.为什么不是用eat/have lunch