求足不出户的解释（急需）

2次函数求最值问题
y=(20+x)(300-10x)
=-10x^2+100x+6000
最值的坐标 (-b/2a,(4ac-b^2)/4a)
解出 当 x=5 y有最大值 6250 即定价为85元时,最大利润6250

A

此题主要考查对电视功能的了解。ABC三个选项都是电视的功能，但是由材料的“获得信息”和“观看体育赛事,文艺演出”，说法比较完整的只有A，B说法材料没有体现，C说法只是说出了材料的部分内容。因此答案为A。

TV helps open people's vision, it can put the whole show the world is in front of us, that we never leave home can understand everything both at home and abroad. Watching TV, reading than listening to radio easy to understand things, because people can hear the sound and can see the images. TV helps open people's minds, it always brings new ideas to us, can inspire us find enhance the quality and efficiency of the new method.

It aims to introduce all kinds of animals and plants in the nature to TV audiences,which makes them understand various creatures on earth and acknowledge the affection of nature to human being without going out of home.

用拟拟人的手法体现了文学的作用与魅力,表达了作者对文学的喜爱与赞美之情.
沈石溪的《再被狐狸骗一次》让我热烈盈眶,作者沈石溪被一对狡猾的狐狸夫妻骗走了一只刚从集市上买来的鸡.过了几月,作者沈石溪上山砍柴时又遇见了那对狐狸夫妻.公狐狸为了让母狐狸能带着小狐狸安全转移,竟然不惜咬断自己的腿,想把年轻人引开.看着鲜血淋漓的公狐狸,作者沈石溪虽然识破了它的诡计,却甘愿再次受骗……狐狸在我们心中一直是狡猾的象征,它诡计多端,但我却被这种伟大的父爱感动得潸然泪下,为了孩子不顾牺牲自己的生命,这就是伟大的父亲!（我自己写的,你可以简单选一些概括,
我自己做的,仅供参考.

people can do shopping and see doctor without going out of home

People can remain within doors can be purchased for their own things, online shopping and high quality and inexpensive, high reliability

As we know,Computer for our life is become more and more important.
Computer for us what role. First,we can use it to chat with friend.Second,we can Remain within doors will be required to purchase the goods.Third,we can use it to learning and See their interest in the film and so on . In short,The network is becoming an indispensable part of life. That's all thanks!
望采纳!

C

C

烁4闪烁
炫4炫目
灼2灼热
埃1尘埃
炫目：炫耀.
尘埃：极小的土粒
浮游：在水面上漂浮移动；漫游.
微不足道：小得不值得一提.
茫茫：广阔深远
足不出户：脚不跨出家门,指不常出门.

tv ,a 2-edged weapon
there is an old saying that the scholar knows everything without setting his feet out of the door,which becomes reality nowadays because of tv .
tv does help us know many things without going outside and asking people .what's more,there are so many educational program on tv such as , and so on ,which can strengthen your knowledge and sense of legality . , can help broaden your horizon in the field of knowledge .but how to lessen the negative side that tv brings us
first of all ,we should choose some positive programs ,stay away from those unhealthy and sick ones .of course you can choose some entertements for joy sometimes .
secondly ,we should learn to controll the time when we watch tv - making sure that you spend less that 1 hours on tv per day and no more than 1 movie on tv per week ,which can guarantee you keep a healthy eyevision and keep you away from being a dull guy who spend all his time on tv .
in all ,tv can also be our friend and guider if we get those 2 rules I presented in mind .
.
还有..严重鄙视那些对翻译不负责任和侮辱的人...

这的大地,长满了青青的绿草,它们随着风儿要摆起来,像绿毯一样铺盖着的大地,它们无拘无束,这里的一切像活了有喜怒哀乐,花儿五光十色的,非常好看漂亮.

1.can be satisfied without stepping out of the door
2.The price of the commodities is relatively cheap
3.Easy to be operated
4.The existing problems of the commodity's quality
5.The uncertainty of advertisement credibility
6.Easy to be cheated

One possible version：
This picture presents to us a scene in which a family of three are walking on a country road. The father is holding a long pole with a computer tied to the end. The son is chasing the computer happily.
It shows a common phenomenon nowadays that some children are so addicted to the Internet that they tend to lock themselves indoors on weekends, playing computer games or surfing the Internet. Consequently, they are becoming more and more reluctant to communicate with their peers.
Personally, the more time children spend on computers, the more physical and mental problems they well suffer from. To rid children of their addiction to the Internet, parents should not only guide them in a proper way but also spare more time to stay with them, such as going out and visiting relatives. Only in this way can they resist the temptation of the Internet and lead a normal life.


根据提示可知这是画图式作文。图画式作文有个典型“三段式”写法。即在第一段描写图画，第二段结合现实生活分析图画的含义，第三段表达个人观点，进行个人总结。因为高考阅卷时间紧张，阅卷老师往往在极短的时间就浏览完文章，所以大家如果能够保证范文章结构衔接紧凑，紧扣题目要求，层次分明的话，往往也不难拿高分。在文章的第一段，作者简单直接用一个限制性定语从句描述图画This picture presents to us a scene，简洁自然。第二段由一个长句和一个短句组成，第一句是根据图画的内容然后描述实际生活现象It shows a common phenomenon nowadays that some children are so addicted to the Internet that they tend to lock themselves indoors on weekends，其中的同位语从句用的恰到好处。最后一段以Personally开始，一个单词就告诉阅卷老师作者的写作意图是归纳总结。这一点也是值得学习的。
【亮点说明】
这篇范文是典型的三段式作文。其结构紧凑，层次分明，文章的段首句都是主题句，然后用几句话分层次展开，简单分析，最后一段按照出题者的要求表明了自己对图画所展示的问题的看法。
这样的文章在高考中是有很大的优势的。老师阅卷是往往没有时间细看每一句，几秒钟就扫视完全篇，在这种情况下，文章的段首句就成了重中之重。范文的段首句This picture presents to us a scene in which a family of three are walking on a country road. 和It shows a common phenomenon nowadays that some children are so addicted to the Internet that they tend to lock themselves indoors on weekends, playing computer games or surfing the Internet. 以及最后一段Personally, the more time children spend on computers, the more physical and mental problems they well suffer from.再加上文章中一些高级词汇如Consequently，reluctant，peers，resist等等，和一些短句如be addicted to, rid of, suffer from, visiting relatives等给文章在细节上添分。

The Internet enables us to remain within doors can more easilydo a lot of things

At the era of my grandma,they only went to supply and marketing cooperative to buy goods；
at the era of my mother,they went to supermarket for what they needed；
now we could shop online without going out,
and I think for the goods we need we just need to imagine and it will appear in front of us in the future.
希望可以帮到你!

答案C
本小题考查的是联系.能在网上和远隔千里之外的网友就一些问题展开讨论说明人们可以改变事物的状态,建立新的具体联系,C符合题意.

We will work at home ,a special computer ,instead of robot ,confortable What people‘s Life In the Future Will Be
In the future,people will work at home since robots(机器人)will do most of the work instead people.Even those have to go to important work only need to stay at home in front of a special computer which can control the work far in the factories.All in all(总之),people will lead a comfortable life in the near future.
（哪句不懂,我来翻译）

The Internet makes it easier for us to do many things indoors without going out.
百度教育团队【海纳百川团】

翡翠精辟我一定转发到微信朋友圈

英译文如下:
Favorite things to buy their own homes.

解题思路：因特网又叫互联网，它利用电磁波传输信号．传递信息．

因特网又叫国际互联网，它是靠电磁波将分布在世界各地的计算机联网起来，用于传递声音、图象等信号；所以因特网利用了通信线路和电磁波．
故答案为：电磁波．

点评：
本题考点： 电磁波的传播．

考点点评： 本题考查学生对网络、信号传播方法的了解与掌握，是一道基础题．

The future of what will happen in people's lives change?1:Life:In the Internet world,you can shop without leaving home study for treatment 2:Tourism:go to the moon,Mars Tour three environments:the use of solar 4:Health:humanity can cure all diseases

秀才不出门全知天下事
闭门酣歌

A

Nowadays there is an increasing trend of people shopping online. Most of the young people have experinces of shopping online and they concluded that here are both advantages and disadvantages of shopping online.
For the advantages, most prominent reason is that you can buy things without even going out of the door. Also, the price on the goods putting up on hte internet is rather cheap compared to the goods in the shop. In addition the procedures for shopping online is easy and convinient, people with no prior knowledge can learn it within minutes.
As for the disadvantages, there are some goods which have quality problems as you cannot check it throughoutly before ordering them. Also, the advertisements putting up for the goods are usually not trustable, most people would have been trapped by them.
In my opnion, the increasing trend of shopping online is inevitable, as there are more and stricter laws that have been setting up to elimiate false and cheating advertisements, and with new rules of force online shop owners to register with true identities, goods with quality problems would be no longer an issue. Therefore, I believe shopping online will eventually replace traditional shopping.

TV we can watch the Olympic soccer tournament,staying at home and glance that world affairs

With much information falling on, more and more people keep themselves. Advanced techonology make it that we don't have to go out to get avaliable information.Althought,keeping indoors also contributes to some problem. Most of all, people couldn't be as close as before which may accelerate conflicts with others arround them. There is a case that neighbours have no acquitance with each other ever. Besides, peopel who keeps indoors is absorbed in themselves' virtual world where they can't take an active part in society. It makes no sense that people bury themselves in Internet, mobile phone and TV. They need colourful outdoor activities to rich their life. Last but not least, keeping indoors is harmful to their physic and mental health. As a result, will you continue keeping indoors? Engaged with us, you will be aware of your real value. That's all, thank you!

炫丽多彩.亲身体验

古时多用于形容女子待守闺中.和大门不出二门不迈意思相近.

Advantage:1.Save your time withour going out.
2.Save your money by pay less
3.Can buy anytime your want.
Disadvantage:1.Goods are not reachable
2.It would not be try-on.

欣赏竹外桃花,春江水暖;
欣赏水光潋滟,山色空蒙;

崇山峻岭
chóng shān jùn lǐng
崇：高；峻：山高而陡.高大险峻的山岭.
足不出户
zú bù chū hù
脚不跨出家门,指不常出门
五光十色
wǔ guāng shí sè
形容色彩鲜艳,花样繁多
空手而归
指一无所获,没有得到任何想要的东西.
喜怒哀乐
xǐ nù āi lè
欢喜、恼怒、悲哀、快乐.泛指人的各种不同的感情.
追名逐利
追求功名和利益

1.足不出户 :remain within doors 节约时间 :save time 避免拥挤 :to avoid the crowd 劳累 :tiredness
2.The price is usually cheaper.
3.the range of choices provided with varieties of brands