高考英语必背作文范文 篇1

As the developing of Chinese economy,the problem of protecting environment is being more and more is a crucial responsibility for we let this situation go as it is,it would be almost not a health earth for our sounds an alarm to us that we should execute the steps of protecting environment large number of problems appeared obviously,the security of food,the acid rain,the lack of water,the worse weather,all of all,it is the problem of environment in the final * development of society should be the basic of protecting environment,we ought to protect environment by newer protecting environment should play an important role in the development of argue that we should protect environment in two the one hand,the related laws should be established by the other hand,the consciousness of protecting environment ought to be publicized in public.

高考英语必背作文范文 篇2

In my family, there are only three people, my parents and I. because of my parents’ work, they could only have one child at that time, so I don’t have any siblings. I felt so lonely when my parents went out for their work. Now the government changed their policy, people can have the second child. But some people refuse because they think they can’t afford it. Despite the expense, there are many advantages to have the second child. For one thing, the only child can have someone company, so they won’t feel lonely on the process of growing up. For another thing, two kids will help each other, they can share things together. Learning to share things is a very important lesson for children. In Chinese tradition, more kids, more better, but I think two are perfect for the family.

高考英语必背作文范文 篇3

1.土壤、土地与土地资源

土壤是陆地表面具有一定肥力、能够生长物的疏松表层。土地比土壤内涵丰富，除土壤外，土地还包括尚未形成土壤的岩石和岩石风化物。因此。土地是一个广泛的概念。而土地资源是对人类利用而言的，指人类在目前和预见到的将来能开发利用的各种类型的土地。它既具有土地的自然属性，又具有土地的社会属性。

2.森林覆盖率与林木蓄积量

前者是指森林面积占土地总面积的百分比，反映一个国家或地区森林面积的占有情况。后者则指森林面积上生长着的林木的材积总量，是测定一个国家或地区森林资源总规模和水*的重要指标。

3.大农业与小农业

农业是利用动植物的生长繁殖，通过人工培养和养殖，来获得农产品的一个重要的.物质生产部门。其中大农业是指广义的农业概念，主要包括农、林、牧、副、渔各业。而小农业是指狭义的农业概念，专指种植业。

4.耕作制度、复种指数与垦殖指数

耕作制度是指农作物的栽培方式(熟制、布局等)及与之相配套的农技措施的总称。复种指数是一农业地区一年内作物播种面积与耕地面积之比。而垦殖指数则是一国或地区已开垦种植的耕地面积与其土地总面积的比例，三者在一定程度上分别及映出某地农业生产力水*、耕地重复利用和开发的程度。

5.工业分布与工业布局

工业分布是已形成的工业生产的地区分布。工业布局除含有“分布”的含义之外，还有把工业生产合理地安排在某地的意思。

6.人口流动与人口迁移

前者是未改变定居地的人口移动。如民工流动、旅游和度假等。后者是指一定时期内人口在地区之间作永久或半永久的居住地的变动。二者的区别表现在是否有较长时间变动居住地。

7.环境容量与环境承载量

前者是对污染物而言，是指环境对污染物的最大允许量。而后者是对人口而言，指一定区域内的自然资源所能养活的人数。

8.领土、国土与国土资源

领土和国土都是从国家*的角度指一国*管辖的也域空间。但领土是国家享有完全排他性*的部分。国土除领土外，还包括国家享有管理和使用权利但不具有绝对占有权的海洋毗连区、专属经济区和大陆架等部分，国土资源指一个国家*管辖范围内的一切资源的总和。广义的国土资源是指国家的全部资源，包括自然资源、人口资源和社会经济贷源。

——初二英语作文必背经典3篇

高考英语必背作文范文 篇4

The Hero in My Heart

As we know， most peoplehave heroes in their hearts. For me, Dr Norman Bethune is the hero in my was a great doctor from Canada.

Dr Bethune was good at performing taking photos was his hobby. In 1938， he came toChina. He opened hospitals and invented medical tools. He worked so hard thathe saved thousands of Chinese people. He didn’t stop totake care of his own injured hand and died.

I am dee* moved by his stories. So I’ll work hard today and do my best to helpothers.

高考英语必背作文范文 篇5

1.昼夜之分、昼夜更替与昼夜长短

昼夜之分是指由于地球是不发光、不透明的球体而引起地表向日的一半明亮而对应的另一半黑暗的现象。昼夜更替是由于地球自转而使地球产生的白昼与黑夜以一个太阳日(24小时)为周期的交替现象。而昼夜长短、是由于黄赤交角的存在和地球公转引起太阳直射点的移动，使除命道外的各纬度昼夜长短产生周年变化的现象。

2.地壳、软流层与岩石图

地壳的范围是在地表以下、莫霍界面以上。软流层位于地幔上部，在地下约60千米—250千米至400千米处。岩石圈则从软流层以上直到地表。三者的关系可表示为：岩石圈=地壳十上地幔顶部=软流层以上部分。

3.流星体、流星现象与陨星

运行于行星际空间的固体块和尘粒称流星体。当它高速冲入地球大气层，与空气分子激烈碰撞而燃烧产：生的光迹称为流星现象。降落到地面未能燃烧尽的流星体的“残骸”则称陨星。

4.节气与季节

节气是根据天气和物候的演变情况确定的，以太阳在黄道上运行15.为划分标准，一个回归年有24个节气。季节;是根据各地正午太阳高度和昼夜长短的周年变化情况确定的，以太阳在黄道上运行90度为划分标准;二者在一定程度上都反映了一年中寒来暑往及物候的变更情况。

5.气温递减率与地温递增率

前者表示对流层内气温随高度而逐渐下降的变化率。*均每上升100米，气温下降℃。后者表示常温层以下一定深度内，地温随深度逐渐增高的变化率。*均每深100米，温度增高3℃。

6.太阳辐射、太阳辐射强度与太阳常数

太阳辐射是一个物理概念。是指太阳向宇宙空间发射的电磁波和粒子流。太阳辐射强度是一个物理变量，指每*方厘米的地球表面每分钟获得的太阳辐射能量。其大小随纬度、太阳高度和时间而变。而太阳常数是一个物理常量，指在日地*均距离条件下，地球大气上界太阳高度角为90°时的太阳辐射强度。其数值为焦/厘米·分。

7.海陆风、季风与季风气侯

海陆风是由海陆之间的气压日变化而引起的，仅出现在滨海地区，是一日之内风向转变的现象。季风是由海陆热力性质的差异所导致的海陆之间气压中心的季节变化(或气压带和风带位置的季节移动)，而季风是一种大范围内的盛行风向随季节有显著变化的风系。但有季风的地区不一定就形成季风气候，只有在海陆对比显著、风向变化明显的热带、副热带和温带大陆东岸的季风区分布的才是季风气候。

8.气象、天气与气候

气象是表明大气特征的物理状态和物理现象的总称。包括气压、气温、温度、风、云、降水等要素。天气是指短时期某地义气中的气象变化情况。它是由各种气象要素综合表述的大气物理状况。气候则是指一地区多年现察所得到的概括性气象情况。天气是多变的，而气候则较为稳定。

9.水体与水圈

水体是指由天然或人工形成的水的体，如海洋水、河流水、湖泊水;大气水等;水圈是地球上各种水体的总称，是一个连续的不规则的圈层。

10.径流与径流量

径流是指降水扣除蒸发量等损耗后沿地表、地下运动的水流。径流量则是指一定时段内通过某一河流断面的水量，单位：立方米/秒。

高考英语必背作文范文 篇6

1、“看”

look看的动作/ see看的结果

watch观察/observe为了研究进行的观察

notice注意/catch sight of看见

stare好奇地看/ glare瞪着看

glance瞅见/glimpse瞥见

see a film 看电影/watch TV看电视

2、“说”

telll sth to sb = tell sb sth告诉的内容

talk with sb about sth强调说话者之间的交流

say sth诉说的.内容

speak in English说的语言

whisper sth to sb 耳语

inform sb of sth 通知某人某事

reason /talk/persuade sb into doing sth 说服某人做某事

Bargain讨价还价

chat聊天

repeat重复

explain解释

warn警告

remind提醒

Discuss 讨论

debate辩论

figure 指出

declare宣布

claim自称

mention 提起

必背高考英语作文10篇（扩展10）

——江苏高考化学必背知识点

高考英语必背作文范文 篇7

Dear World

 Child Foundation organizers，

My name is Jerry Lu, a student currently studying at Shanghai High school. I am writing, on behalf of my classmates, to ap* for the 2000 yuans worth of fund in a bid to initiate a program aimed at helping those students who are financially disadvantaged.

Being raised in families that don’t have to worry about putting food on the table need not mean oblivion to our less fortunate peers. On this account, we would appreciate it if you could sponsor our poverty-relief endeavor. The following is how we would go about using the money. We would spend 1500 yuan purchasing some stationery for the needy students in a poverty-stricken area. It is worth noting that we would inform them to pick up the school supplies themselves instead of us “doling out” the supplies so that we wouldn’t end up embarrassing those who we want to help. The remainder of the fund would be used to invite a motivational speaker who was to talk about how to lift oneself out of poverty by making right academic and professional decisions.

At the end of the day, our efforts might only trigger a ripple in the lives of some young people, but who knows what butterfly effects these young minds may have on tomorrows world?

We would be much obliged if you could re* at your earliest convenience.

Yours Sincerely,

Jerry Lu

高考英语必背作文范文 篇8

Since I go to school, it is important to take the high score, because not only my parents feel very happy, but also my teacher will give me special attention. It seems that high score is the main goal for every students. It has been long recognized that foreign students are good at practising while our students are good at getting the high mark. Score and ability which is more important, I think the latter is more useful. The things we learn should be prepared for our future. The students are in the stage of storing knowledge, when they meet challenges someday, they can have the ability to solve the problems. Having the ability to solve problems by oneself reflects the person is independent and he has already grown up. That’s what education chase for.

自从我去上学起,考高分是很重要的,因为不仅我的父母会感到非常高兴,而且我的老师会给予我特别的关注。似乎,高分是每个学生的主要目标。一直以来，人们就认识到外国学生擅长实践,而我们的学生擅长获得高分。分数和能力哪个更重要,我认为后者更有用。我们学习的东西应该为我们的未来做好准备。学生处在存储知识的阶段,总有一天,当他们遇到挑战的时候,他们可以有能力解决这些问题。拥有自行解决问题的能力反映了一个人是独立的,他已经长大了。这就是教育所追求的。

1.高考英语作文精选范文

2.必背高考英语满分作文

3.高考英语作文必背万能句

4.高考英语作文必背金句大全

5.备考2017年高考英语写作必背作文模板

高考英语必背作文范文 篇9

【写作要求】

“灿烂星空，谁是真的英雄?”做出惊天动地业绩的人是英雄，为追求真理献出生命的人是英雄，在*凡岗位上默默奉献的人是英雄……

一．Dr Norman Bethune

1．Natlonality(国籍): Canada

2．Hobby: taking photos

3．Main stories: saved a lot of Chinese people; opened hospitals; invented medical tools

二．Liu Xiang

1．Nationality: China

2．Hobby: singing

3．Main stories: won the first

4．Olympic gold medal in the men\' s 110m hurdles event in Athens; set a world record in the same event in Lausanne

从上面信息卡中选择一位英雄，以The Hero in My Heart为题写一篇短文。

要求：①包含所选信息卡上的内容;②适当拓展，如学英雄的感想、行动等;③不能出现表明你身份的信息;④词数80左右，不含已给出部分。

The Hero in My Heart

As we know, most people have heroes in their hearts. For me,

【优秀满分范文1】

The Hero in My Heart

As we know， most people have heroes in their hearts. For me, Dr Norman Bethune is the hero in my heart. He was a great doctor from Canada.

Dr Bethune was good at performing operations. And taking photos was his hobby. In 1938， he came to China. He opened hospitals and invented medical tools. He worked so hard that he saved thousands of Chinese people. He didn’t stop to take care of his own injured hand and died.

I am dee* moved by his stories. So I’ll work hard today and do my best to help others.

【优秀满分范文2】

The Hero in My Heart

As we know, most people have heroes in their hearts. For me， Liu Xiang is the hero in my heart. He is a famous Chinese sportsman.

Liu Xiang is good at running. In 2004， he won his first Olympic gold medal in the men，s 110m hurdles event in Athens. Then, he set a world record in the same event in Lausanne. Besides training and taking part in competitions, Liu Xiang also likes singing and he sings well.

With his hard work, he is winning competitions one after another. This encourages me to study harder from now on.

必背高考英语作文10篇（扩展8）

——地理高考必背知识点3篇

高考英语必背作文范文 篇10

生命的日子里，有晴天，也会有阴天雨天雪天。

人生的路上，有平川坦途，也会撞上没有舟的渡口没有桥的河岸。

烦恼、苦闷常常像夏日里的雷雨，突然飘过来，将心淋湿。挫折、苦难常常猝不及防地扑过来，你甚至来不及发出一声叹息就轰然被击倒。

倒在挫折的岸边，苦难的岸边，四周是无边的黑暗，没有灯火，没有星星，甚至没有人的气息。恐怖和绝望从黑暗里伸出手紧紧地钳住可怜的生命。有的人倒在岸边再没爬起来，有的人在黑暗里给自己折了一只船，将自己摆渡到对岸。

20岁忽然残疾了双腿的史铁生，为自己折了一只名为“写作号”的船。他是因为看穿了“死是一件不用着急的事，是一件无论怎样耽搁也不会错过的事”，才在轮椅里给自己折了这只船，将自己从死亡的诱惑里摆渡出来，“决定活下去试试”。

正攻读博士学位，却患上了运动神经细胞病，不能说不能动的史蒂芬?霍金，做了一场被处死的梦。梦醒后，万念俱灭的他突然意识到，如果被赦免的话，他还能做许多有价值的事情。于是他给自己折了一只“思想号”飞船，驶进了神秘的宇宙，去探讨星系、黑洞、夸克、“带味”的粒子、“自旋”的粒子、“时间”的箭头……

在苦难的岸边匆匆折成的船，成了不幸命运的救赎之路。

也许一生我们不会遭遇这样的大灾难，然而我们何曾摆脱过阴天雨天雪天，何曾摆脱过绝望的纠缠!折磨人生的，一是生存，一是爱情，它们常常突然间就浊浪翻滚地横亘在面前，你愁肠百结找不到过去的桥，痛不欲生找不到可以渡过去的船。这种无路可走的绝望，一生中谁不碰上几回?!当我们知道苦难是生命的常态，烦恼痛苦总相伴人生时，我们何必要自怨自艾早早地放弃?早早地绝望?

有的人将求生的本能折成一只船，将自己摆渡出绝望的深渊;有的人将新的欲望折成一只船，渡过了挫折后的痛苦与沮丧;有的人将希望折成一只船，驶过了重重叠叠的黑暗。实在无船可渡的人，哪怕用幻想折只小船呢，也要奋力将自己摆渡到对岸。

所以，无论命运多么多变，无论人生多么颠沛，都会有摆渡的船，而且这只船常常就在我们自己手里。

高考英语必背作文范文 篇11

Last Sunday was unforgettable when my classmates and I went to a farm to pick up fruits.

Early in the morning, with the sun rising from the horizon, we, chatting laughing all the way, set out to our destination, which is located in the suburb of the city. On arrival, we saw a large field with a large number of trees and bushes, birds singing in the sky, butterflies flying everywhere, which are not only beautiful but also inspiring. Immediately, we started to work, picking apples, peaches and strawberries. Two hours later, with all our baskets full, we finished our job, feeling a great sense accomplishment. Exhausted as we were, we felt our time and effort worthwhile, for we had enjoyed a closer relationship with the nature.

What a memorable day it was!

高考英语必背作文范文 篇12

啊，让我先背，我先来的为什么要让你先背？我都已经背一半了，行行行你背你背，真是的。没有错，没有错，今天我们班的邢老师让我们把语文数学，政治，物理，生物的课代表整理的重点总结一下，在这周之内全部都背下来，如果背不下来的话就要在周六和周日来了，我们很是担心心里在想那个人会不会是自己就很焦急，就怕那个人是自己，因为都很害怕，所以全班都争着去找课代表去背，班里很闹（虽然今天才刚刚周二，但也有快的已经所有科都OK了）我也是很着急。

我也是很焦急，但因为我是政治课代表，所以我就忙得不可开交，因为我一边要给其他科背，又要去考政治，我也很焦急的背完了历史，然后就去背英语，我先给老梁背了单词，之后要考课文的时候上课了，再加上坐的地方变了，所以我今天就没有考上英语课文，看来又又又得明天早上了呀，唉。

我发现有的快的是真的快慢的是真的慢，有的慢的就想背，但也不敢因为他怕错，如果错了话会怎么办怎么样的想背但又不敢背的是最最最最最最无语的就一直在你边上走，但又不找你背的人。

高考英语必背作文范文 篇13

How to keep safe?

As teenagers, we should always keep safety inmind. But how can we keep safe? Here are some of my suggestions.

First, we should be careful when we make friends,especially on line. Second, if we are in danger, we must call thepolice for help in time so that we can keep ourselves safe. Also,we oughtto eat healthily and safely. Eating food that goes bad will do harm to ourhealth. Last but not least, summer is coming, and we must remember itsdangerous to swim in the river.

In short, safety must come first !

高考英语必背作文范文 篇14

The boy and the girl in the picture sat on a bench talking merrily while eating a water-melon. When they went away they left the melon’s skin on the bench, making it very dirty. They didn’t want to take any trouble to throw it into the dustbin although it was very near where they were sitting. Instead, they said that there would be someone who should clean the rubbish.

However, what they did makes others look down upon them. If everyone behaves in this way, the world will be a big rubbish dump with flies flying round and people will live in a world of diseases. Besides, it will be impossible for dustmen to clean the world woth such people living in it.

高考英语必背作文范文 篇15

城市、交通、商业

1. 城市的区位因素：

自然因素：①气候 ②地形 ③河流(水源和航运)(河流哪些位置有利于城市形成)

社会经济因素：①资源 ②交通(港口城市、交通、枢纽、运河城市)

③政治 ④宗教 ⑤旅游 ⑥科技 ⑦军事

⑧经济状况：工农业发达、人口众多

2.古代中低纬度河流冲积*原区城市兴起的区位因素：

①气候：气候温暖湿润 ②地形：地形*坦 ③水源：灌溉水源充足

④土壤：土壤深厚肥沃，导致灌溉农业发达，提供农副产品多

3.影响城市形态的因素(集中式、条带式、组团式)

自然因素： ①地形地貌 ②河流

社会经济因素：①政治 ②经济 ③文化

4.城市功能分区(商业区、住宅区、工业区)的影响因素

①历史因素 ②经济因素(地租高低、付租能力、交通通达性、距市中心距离)

③社会因素：收入、知名度、宗教信仰、种族 ④行政因素

5.商业区(城市分区中)形成的区位因素

①大量消费人群(流动人口多) ②便捷交通 ③历史延续

6.影响城市地域结构(同心圆结构、扇形结构、多核心结构)的因素

①城市职能与城市性质 ②城市历史 ③自然环境 ④交通

7.交通运输方式选择的影响因素：(五种现代交通运输方式)

①货物性质 ②货物数量 ③时效性 ④运价 ⑤运距

8.修建公路、铁路等交通线的区位因素：

(1)自然因素(限制条件)

①地形地貌(以*原为主，少高山、沙漠、峡谷、陡坡等)

②地质状况(冻土，喀斯特地貌，地壳活动)③水文状况(河流、湖泊、沼泽)

④气候：温暖湿润，少暴雨，洪涝等气象灾害

(2)社会经济因素(决定条件)

①沿线经济状况 ②沿线地区资源分布状况 ③沿线人口状况(民族分布)

④城市分布状况 ⑤科技水*是基础

(3)科学技术(保障) (4) 生态环境保护

9.影响交通线弯曲变线的因素：

①可能要求通过更多城市、矿产、旅游等资源丰富地区

②促进更多地区资源的开发

③带动更多城区经济发展，增加运输量

④避开不利自然条件

⑤利用原有铁路公路运输建筑物资

10.输油管线选择的影响因素：

①线路距离长短②工程量与成本(自然障碍多少，有无)③石油运输交通通达程度

④纬度位置→气候→温度→畅通性⑤政治关系是否友好

高考英语必背作文范文 篇16

Dear Tom,

I am indeed very sorry that I can’t go to Beijing with you next week , which I have promised .I feel sorry for about it and want you to know what happened .

Just now ,my cousin , Li Qiong , who left home to Australia for his further study last year , informed me that he would return this Saturday morning and asked me to pick him up at the airport with his family . You know , we haven’t seen each other for nearly a year .

I sincerely hope you can accept my apologies and understand me . I would appreciate your allowing me to make another date to show you around Beijing .Once again,I’m sorry for any inconvenience caused.

Sincerely yours,

Li Hua

高考英语必背作文范文 篇17

1．认真审题立意

文章要有明确的主题，必须具备4个条件：准确、鲜明、深刻、集中。以作文“The English teacher I Admire Most”为例,文章的主题是关于记叙我最欣赏的一位英语老师,因而就不能泛泛谈论老师这一职业或自己的几位老师。

2. 草拟提纲

文章布局要做好3件事：安排好层次段落，铺设好过渡，处理好开头和结尾。如命题作文中有提示句，还要从提示句的关键词出发，围绕关键词开拓思路，发挥联想，记录下联想到的东西，可以是句子或单词词组，可以是英语或汉语。仍以“TheEnglishTeacherIAdmireMost”为例，提纲可以这样写:

1）WhoistheEnglishteacherIadmiremost

2)Myreasons

3)WhatcanIlearnfromtheteacher

3．写出落主题句，理文章之脉络

首先，大家要对教辅有正确的认识。选择适合自己的一两...

高中英语作文可以说是让很多同学投疼的一个题目了，自...

高考季又要到了，高考作文是很多同学十分担心的地方，...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

英语作文是值得各位同学重视的，每年在英语作文上丢分...

高考季又要到了，高考英语作文是很多同学十分担心的地...

高考季又要到了，高考英语作文是很多同学十分担心的地...

高考季又要到了，高考英语作文是很多同学十分担心的地...

高考英语必背作文范文 篇18

Friends

What are friends? We often talk about thetopic with others. I think friends are those people who can help you when youare in trouble. Don’t forget the saying, “A friend in need is a friend indeed.”Friends can tell you your mistakes, though what they say is hard for you to listento. You can share your happiness, trouble and worry with friends. Someone alsosays, “You can’t walk any stepwithout a friend.” So I think friends are veryimportant to us. I would like to make as many friends as possible.

高考英语必背作文范文 篇19

The world is colorized,every color has its special stands for passion,green symbolizes peace,blue indicates calmness,white signifies painters can use their colors to outline the while world,the cameraman can shoot the mixed world by their rainbow is made up of 7 white contents 7 tricolor,posed by red,yellow,and blue,can produce every color in the the variety of colors,I like white most,not only it is a sim* color,but also it is a symbol of white is the most popular color in wedding,because it stands for the pure snow is white,it symbolizes the beautiful angel drop to our reason,I like white most,is that it indicates can image all on it.

高考英语必背作文范文 篇20

良好师生关系

A good teacher-student relationship will make learning enjoyable and interesting for the students and teaching worth-while for a teacher.

To set up a good teacher-student relationship, a teacher\'s behaviour is important. The teacher should motivate the students so that they want to learn. A good teacher should be patient, friendly and strict. Remember not to encourage the students by pushing or forcing them. Being too friendly may cause students to become lazy and stop working hard. On the other hand, being too strict may frighten the students. So a teacher should avoid going extremes in treating his students. And teachers should encourage the students to think independently and learn to study by themselves.

As for the students, they must always respect their teachers. Students should be eager to learn and willing to work hard. It\'s important to listen with attention in class and it\'s more important to learn to raise questions and work out problems in new ways.

In conclusion, a good teacher-student relation-ship can be mutually beneficial. The students gain knowledge eagerly and enjoyably and the teacher gains satisfaction from his job.

对于学生和教师教学来说，良好的师生关系会使学习愉快和有趣。

建立良好的师生关系,教师的行为是很重要的。老师应该激励学生,使他们想学。一个好老师应该要有耐心,友好的和严格的。记住不要通过推或强迫来鼓励学生。过于友好会导致学生变得懒惰和停止努力学习。另一方面,过于严格会使学生可能吓到。所以教师应该避免极端的对待他的学生。老师应该鼓励学生独立思考,学会自己学习。

至于学生,他们必须始终尊重他们的老师。学生应该渴望学习和愿意努力学习。听是很重要的,注意在课堂上,更重要的是学会提出问题和解决问题的新方法。

总之,良好的师生关系可以互利。学生们热切地获取知识,并愉快地和老师获得满意的工作。

高考英语必背作文范文 篇21

Dear Tom,

Im sorry for not re*ing to your e- mail earlier. Last week ,I was so occupied in preparing for the final examination that I even didnt have time to surf the Internet .You know the exam is very important for me.

You asked me about my plan for the summer vacation .Well,there are so many things to do. But as is often the case, the first thing that I want to do is to travel. Not only can travel make me relaxed but also it can widen my horizon and enrich my knowledge by experiencing the countrys language,culture and custom. This summer, the place where I would like to travel is Paris, the capital of France. Apart from travel,I also want to be a volunteer .I want to help the children, whose parents went to big cities to make a fortune but left their children living with their grandparents. What about your summer vacation? Looking forward to your re*.

Yours

Li Hua

高考英语必背作文范文 篇22

甜甜同学：

你好!

作为同龄人，我非常理解你的心情和处境，但作为生活的挑战者，我必须给你一个忠告：珍惜你的痛苦，它是你明天的财富。

种子在痛苦中萌生，婴儿在痛苦中分娩，雄鹰在痛苦中展翅。没有痛苦的残阳如血，怎有美丽的朝晖喷薄而出?不经过痛苦的训练，体育健儿就没有了领奖台上的快乐;不经过痛苦的跋涉，登山队员就体味不到红旗插上珠穆朗玛峰的喜悦!

“宝剑锋从磨砺出，梅花香自苦寒来。”只有经过痛苦的磨炼，生命的火花才会闪光发亮。甜甜同学，痛苦实在是人生的一笔财富!就看你有没有目标。

当贝多芬双耳失聪后，谁能想象他能谱出《欢乐交响曲》，并自己站在台上指挥乐队呢?可贝多芬做到了，因为他对生活没有失去信心，他把痛苦当作丁一笔财富，用这笔财富谱写了生命的乐章。谁能相信一个看不见光明的盲人却写出了让明眼人心动的“三天光明”呢?但海伦·凯勒做到了，因为她对人生没有失去激情.她把痛苦视为一笔财富，用心用手用身体体会光明，才写出了举世震惊的《假如给我三天光明》。

欢乐不是人生最好的解脱，痛苦也不是人生最大的失落。生活中总会有痛苦，总会有不如意。其实，失败者都是被自己打敢，被自己的失意、麻木、无奈打败了。这不是身败，而是一种心败。调整好心态，把分数名次看淡些，将你绘画的亮点贡献给班里的板报，让大家喜欢你的开朗活泼，在亲密无间的氛围里，你会感到学校就像一个家，谁也离不开谁。成才的道路有多种，让爸妈的期待随着你的价值展示慢慢扭转，你会快乐的完成学业，收获成长的硕果。

把痛苦作为一笔财富，存储进你心底的银行，你将会是精神富翁。

快乐无忧!

一个关心你的同学

201x年6月6日

高考英语必背作文范文 篇23

Dear Jim,

I’m very sorry that I can’t go on a trip to Beijing with you next weekend, which I have promised you. I’m writing to tell you the reason for it.

Just now, my cousin, Li Ming, who went abroad for further education last year, informed me that he would return the next Saturday morning. He asked me to pick him up at the airport with his parents. As you know, we haven’t seen each other for about a year, so I’ll have to help him in the first place.

I really hope that you can accept my apologies and understand me. I would appreciate it if you allow me to fix another time to show you around some places of interest in Beijing.

Wish you have a good time this weekend!

Yours,

Li Hua

高考英语必背作文范文 篇24

The Person Who Has Influenced Me Most

My mother is the person who has influenced memost.

She is in her forties. She always listens tomy problems patiently. And she advises me how to solve them. As a doctor, sheoften says she can’t be too careful. She oftenworks extra hours. She has devoted most of her time to her work. So I think sheis not only a good mother but also a good doctor.

I hope I can be a person like her. I also hopeshe will pay more attention to her own health. She’d better have more time to relax herself.

高考英语必背作文范文 篇25

How to Deal with Our Study Problems

Although we often feel stressed, we shouldfind suitable ways to deal with stress.

We can wear calm colours like blue and whiteto make us feel relaxed. We should be careful enough, because “a miss is as good as a mile”. We should also achieve a balance between schoolwork and to plan your spare time well. Don’t lose heart atany time. You will make great progress through hard work.

When having problems, we can ask people aroundus for help. It’s not wise to keep ourworries to ourselves.

高考英语必背作文范文 篇26

1、关汉卿，号己斋叟，金末元初大都人，元代戏曲家。《窦娥冤》，全名《感天动地窦娥冤》。

2、杂剧一般由四折一楔子构成一本，演述一个完整的故事。一本戏限定由男主角(正末、或女主角(正旦、一人歌唱，其他配角一般都只能道白不能唱。由男主角唱的叫末本戏，女主角唱的叫旦本戏。

3、曹禺，原名万家宝，现代剧作家。《雷雨》创作于20世纪30年代，写了周鲁两家八个人物由于血缘纠葛和命运巧合而造成的矛盾冲突。

4、莎士比亚，欧洲文艺复兴时期英国伟大的诗人和戏剧家。他的剧本著名的有《李尔王》《哈姆雷特》《奥赛罗》《罗米欧与朱丽叶》等。

5、柳永，字耆卿，原名三变，北宋词人。

6、辛弃疾(1140-1207、，字幼安，号稼轩，南宋词人。他于1162年率北方抗金义军万余人回到南宋，但南宋朝廷只派他任地方官，并不用他北上抗金，因此他的词中多表达自己内心的愤慨之思和爱国之情。

7、李清照(1084-1155、，号易安居士，她通晓金石鉴赏，能诗善文，词的成就尤其突出。北宋末年她南渡避乱，不久北宋灭亡，丈夫病死，她只身逃难，境遇悲惨。

8、《拿来主义》选自鲁迅的杂文集《且介亭杂文》。

9、蒙田，欧洲文艺复兴时期法国思想家、散文家。著有《随笔集》。

10、《苏武传》选自《汉书·李广苏建传》。《汉书》是我国第一部纪传体断代史。班固(32-92、，字孟坚，东*，著名史学家和文学家。

高考英语必背作文范文 篇27

一 、单词的规律性，phonics方法

大家学习英语中最常出现的问题就是，“看”没有问题，有些同学连原文书都可以看的比较顺，但是让自己去写，那么，就会出现这样，那样的问题。仔细分析比较就会现现，那是因为我们学习英语的时候，语言环境相对来说比较单一，这就是我们常说的哑巴英语。但其实学习效果不好，怎么学长进也不大，这就是因为学习方法不对导致的。刚开始学单词的时候总是把一个单词按字母拆开一个个地背，记住它的一个汉语意思就觉得海文钻石卡够了，但是在复习过程中，大家不难发现，如果利用这个方法记住少量的单词效果还是不错的，后来词汇量要加大的时候就觉得力不从心了。现在的单词记忆phonics是一个很好的方法，英语单词中，有13%的特殊单词，需要死记硬背或其他方法记忆，而剩下的87%都是很有规律的单词，这就是常说的phonics语言规则，phonics对于单词记忆有很大的好处，它是根据字母的自然发音来记忆单词，只要能读的出，那么自然能够拼写出来，而且不会拼错。提醒考生，大家学习英语的时候，比较重视长难的单词，看到多音节词就查字典，而对一些单音节的词或它们组成的短语常常忽略掉，不查也不记，觉得没什么用。其实，像那些比较长的单词用作专业词汇的比较多。那些小的单词则是英语的本土字，在日常生活中使用较频繁，而且词义一般比较多、变化也比较多，是较难掌握的，应该是大家学习的重点。

二、句子是由短语、单词和语法组成

英语里的惯用法经常是一个个词组，如果读句子的时候把单词按词义分析，那么对于简单句子可以理解，但是对于复杂的句子就根本没有办法理解它的意思了。对待英语句子 ，首先必须记住短语，把它们清晰的记录在自己的脑子里，再按按英语的习惯来使用。必竟英语的语法规律在很大程度上是与汉语不同的，只要熟练掌握短语以及英语的语法规律，才会让自己的英语比较正宗，不然，那学出来的就是Chinese English。例：汉语的.“黑马”用英语习惯说法是an unexpected winner，但要是照字面意思说可能很多同学会翻译成a black horse，其实这个意思是“黑色的马”;再比如“条条大路通罗马”，英语的惯用说法是All roads lead to Rome，要是按字面意思可能会写成Everyroad leads to Rome。其实像这种说法的差别是不同的文化之间的差别，所以，大家在学习英语的时候，请在必要的时候抛弃汉语的语法。对于英语的句型，要不是语法规定，要不就是英语的固定搭配，这些都是要记住的，也没有什么理由可追究，就像是围棋中的定式、数学中的公式，按照它的规定，就可以用英语说出千变万化的句子。

高考英语必背作文范文 篇28

氮及其化合物

1、氮的氧化物：NO2和NO

N2+O2 ========高温或放电 2NO，生成的一氧化氮很不稳定： 2NO+O2 == 2NO2

一氧化氮：无色气体，有毒，能与人血液中的血红蛋白结合而使人中毒(与CO中毒原理相同)，不溶于水。是空气中的污染物。

二氧化氮：红棕色气体(与溴蒸气颜色相同)、有刺激性气味、有毒、易液化、易溶于水，并与水反应：

3NO2+H2O=2HNO3+NO，此反应中NO2既是氧化剂又是还原剂。以上三个反应是“雷雨固氮”、“雷雨发庄稼”的反应。

2、硝酸(HNO3)：

(1)硝酸物理性质：纯硝酸是无色、有刺激性气味的油状液体。低沸点(83℃)、易挥发，在空气中遇水蒸气呈白雾状。98%以上的硝酸叫“发烟硝酸”，常用浓硝酸的质量分数为69%。

(2)硝酸的化学性质：具有一般酸的通性，稀硝酸遇紫色石蕊试液变红色，浓硝酸遇紫色石蕊试液先变红(H+作用)后褪色(浓硝酸的强氧化性)。用此实验可证明浓硝酸的氧化性比稀硝酸强。浓硝酸和稀硝酸都是强氧化剂，能氧化大多数金属，但不放出氢气，通常浓硝酸产生NO2，稀硝酸产生NO，如：

①Cu+4HNO3(浓)=Cu(NO3)2+2NO2↑+2H2O

②3Cu+8HNO3(稀)=3Cu(NO3)2+2NO↑+4H2O

反应①还原剂与氧化剂物质的量之比为1︰2;反应②还原剂与氧化剂物质的量之比为3︰2。

常温下，Fe、Al遇浓H2SO4或浓HNO3发生钝化，(说成不反应是不妥的)，加热时能发生反应：

当溶液中有H+和NO3-时，相当于溶液中含HNO3，此时，因为硝酸具有强氧化性，使得在酸性条件下NO3-与具有强还原性的离子如S2-、Fe2+、SO32-、I-、Br-(通常是这几种)因发生氧化还原反应而不能大量共存。(有沉淀、气体、难电离物生成是因发生复分解反应而不能大量共存。)

3、氨气(NH3)

(1)氨气的物理性质：无色气体，有刺激性气味、比空气轻，易液化，极易溶于水，1体积水可以溶解700体积的氨气(可做红色喷泉实验)。浓氨水易挥发出氨气。

(2)氨气的化学性质：

a. 溶于水溶液呈弱碱性：

生成的一水合氨NH3·H2O是一种弱碱，很不稳定，受热会分解：

氨气或液氨溶于水得氨水，氨水的密度比水小，并且氨水浓度越大密度越小，计算氨水浓度时，溶质是NH3，而不是NH3·H2O。

氨水中的微粒：H2O、NH3、NH3·H2O、NH4+、OH—、H+(极少量，水微弱电离出来)。

喷泉实验的原理：是利用气体极易被一种液体吸收而形成压强差，使气体容器内压强降低，外界大气压把液体压入气体容器内，在玻璃导管尖嘴处形成美丽的“喷泉”。

高考英语必背作文范文 篇29

Last weekend，we took part in a picking activity. We drove from the school, and the farm was about 2 kilometers away from our school. When we arrived at the farm, there are all kinds of animals, green fresh vegetables and fruit trees in the farm. We were divided into two groups. One group was responsible for picking fruits, the other packed up the fruits. Time flying quickly, the activity was over. But it was a meaningful day, when we learn a lot form it. Through this activity, we know how hard the farmers are and how precious the food is. We should treasure the food planted by the farmers.

高考英语必背作文范文 篇30

1、硫酸(化学式：H₂SO₄)，硫的最重要的含氧酸。无水硫酸为无色油状液体，℃时结晶，通常使用的是它的各种不同浓度的水溶液，用塔式法和接触法制取。前者所得为粗制稀硫酸，质量分数一般在75%左右;后者可得质量分数的纯浓硫酸，沸点338℃，相对密度。

硫酸是一种最活泼的\'二元无机强酸，能和许多金属发生反应。高浓度的硫酸有强烈吸水性，可用作脱水剂，碳化木材、纸张、棉麻织物及生物皮肉等含碳水化合物的物质。与水混合时，亦会放出大量热能。其具有强烈的腐蚀性和氧化性，故需谨慎使用。是一种重要的工业原料，可用于制造肥料、药物、炸药、颜料、洗涤剂、蓄电池等，也广泛应用于净化石油、金属冶炼以及染料等工业中。常用作化学试剂，在有机合成中可用作脱水剂和磺化剂。

2、化学性质腐蚀性

纯硫酸加热至290℃分*出部分三氧化硫，直至酸的浓度降到为止，这时硫酸为恒沸溶液，沸点为338°C。无水硫酸体现酸性是给出质子的能力，纯硫酸仍然具有很强的酸性，98%硫酸与纯硫酸的酸性基本上没有差别，而溶解三氧化硫的发烟硫酸是一种超酸体系，酸性强于纯硫酸，但是广泛存在一种误区，即稀硫酸的酸性强于浓硫酸，这种想法是错误的。的确，稀硫酸第一步电离完全，产生大量的水合氢离子H3O+;但是浓硫酸和水一样，自身自偶电离会产生一部分硫酸合氢离子H3SO4+，正是这一部分硫酸合质子，导致纯硫酸具有非常强的酸性，虽然少，但是酸性却要比水合质子强得多，所以纯硫酸的哈米特酸度函数高达。

在硫酸溶剂体系中，H3SO4+经常起酸的作用，能质子化很多物质产生离子型化合物：

NaCl+ H2SO4==NaHSO4+HCl(不加热都能很快反应)

KNO3+ H2SO4→K++HSO4-+HNO3

HNO3+ H2SO4→NO2++H3O++2HSO4-

CH3COOH+ H2SO4→CH3C(OH)2++HSO4-

HSO3F+ H2SO4→H3SO4++SO3F-(氟磺酸酸性更强)

上述与HNO3的反应所产生的NO2+，有助于芳香烃的硝化反应。

3、接触法制硫酸

反应原理：①造气：4FeS2+11O2(g)=2Fe2O3+8SO2

②氧化：2SO2+O2=2SO3

③吸收：SO3+H2O=H2SO4

分别对应的设备：①沸腾炉 ②接触室 ③吸收塔

具体措施：粉碎矿石、过量空气、热交换、催化氧化、逆流、循环、浓H2 SO4吸收SO3(防止形成酸雾)、尾气处理(用氨水吸收SO2，生成(NH4)2SO3，再用H2SO4处理，便又可生成SO2)。

4、浓硫酸()的特性

①吸水性：H2SO4易与H2O结合，并放出大量热，所以浓硫酸常做酸性气体的干燥剂(不可干燥H2S)。

②脱水性：浓H2SO4遇见某些有机化合物，可将其中氢、氧原子个数按2:1比例脱去，即为脱水性，C12H22O11 12C+11H2O(浓H2SO4脱水性)

③强氧化性：浓H2SO4与金属、与非金属、与具有还原性物质发生氧化-还原反应，如：

Cu+2H2SO4(浓)=CuSO4+SO2↑+2H2O

C+2H2SO4(浓)=CO2↑+2SO2↑+2H2O

H2S+H2SO4(浓)=S+SO2↑+2H2O

2NaI+2H2SO4(浓)= Na2SO4+SO2↑+I2+2H2O

与还原剂反应浓H2SO4的还原产物都为SO2。

常温下，浓H2SO4使Fe、Al表面发生钝化(生成致密氧化膜)，而不发生产生气体的反应。

5、储存方法

储存于阴凉、通风的库房。库温不超过35℃，相对湿度不超过85%。保持容器密封。远离火种、热源，工作场所严禁吸烟。远离易燃、可燃物。防止蒸气泄漏到工作场所空气中。避免与还原剂、碱类、碱金属接触。搬运时要轻装轻卸，防止包装及容器损坏。配备相应品种和数量的消防器材及泄漏应急处理设备。倒空的容器可能残留有害物。稀释或制备溶液时，应把酸加入水中，避免沸腾和飞溅伤及人员。

必背高考英语作文10篇（扩展5）

——高考语文必背知识点3篇

高考英语必背作文范文 篇31

My mother is the person I respect plays an important role in my life，not only as a mother but also as a friend.

As a mother，she takes good care of the family and she is never upset about works hard in the always warm-hearted and ready tohelp sets a good example to have learned to work hard andrespect people a friend，she knows a lot about me and gives me helpwhenever its necessary.

My mother has a great influence on me and I respect her most.

高考英语必背作文范文 篇32

Rose is my roommate, classmate and my best friend in my college. She has a round face and a little plump. One can always find a nice smile on her face, which reflects her amiable and pleasant character. Our friendship attributes to her great influence on me.

In terms of study, she is good at English, while English is not my cup of tea. When I am confused about teacher’s explanation of texts, she always interprets them to me in an explicit way. I really appreciate her help. Besides, she also imparts me a few language learning tips and recommendations which arouse my learning interest.

In addition, in the leisure time, she helps me a lot as well. Because I am not the local student and my hometown is far away from here, sometimes I feel homesick. However, I always have Rose on my side. Her accompany gives me great comfort.

I feel so lucky that I could have such a good friend, who teaches me and help me in my study and leisure life, so she is the classmate that has influenced me most in college.

高考英语必背作文范文 篇33

How to keep a good relationship with parents

In my opinion, I have too many rules at parents never allow me to go out with my friends at night. They don’t allow me to choose my own clothes, either. Andthey pay too much attention to my exam results. I think my parents don’t quite understand me.

However, I try my best to understand they don’t allow me to make my owndecisions and give me too much pressure, I know that it is because they reallylove me and want me to have a bright future.

In order to keep a good relationship with myparents, I study hard, listen to them, talk to them as friends, tell them mytroubles, and help them do more housework.

高考英语必背作文范文 篇34

Mrs. Jane is my English teacher and she is 30 years old. She looks so young and beautiful that my classmates like her very much. Of course, the most important reason is that she is so kind and her lessons are so great. She likes staying with us and talking to us which can help her to know what problem we have and how she can do to improve her teaching, she once said. She encourages us to work hard often. When we make progress, she is pleased with us. Because of her, my English has greatly improved.

是我们的英语老师，她30岁了，但是看起来年轻漂亮，同学们都很喜欢她。当然，最重要的原因是她人好，而且课上得好。她喜欢跟我们在一起，跟我们聊天，这有助于她了解我们的问题所在，帮助她提高教学。她曾说，她鼓励我们多多努力学习。当我们取得进步时，她和我们一起开心。因为有她，我的英语成绩提高得很快。

高考英语必背作文范文 篇35

My experience of learning English after class

Im glad I have won the first prize in the English Contest, which completely contributes to my after-class English learning. I often take part in the English Corner and practice speaking English. There are many participants in the corner and we can talk about any topics in English. By doing this, I have improved my pronunciation and intonation. Most important of all, I have conquered my shyness and timidness. I can talk to anybody boldly in English. So I didnt feel nervous in the contest at all. At the same time I insist on keeping diaries in English every day. I will try my best to bring what I have learnt to use. Thus my knowledge has been reviewed and enlarged. I also visit English reading websites to read much. Learning English depends on reading widely and largely. Those sites provide many English articles of all levels and I can find appropriate ones to read. The dictionary in the com*r can help me deal with the new vocabulary quickly. Therefore I benefit much fr

om the reading. Above are my three main learning methods of learning English after class. They are helpful and convenient to me. I hope they are also beneficial for you.

高考英语必背作文范文 篇36

那辉煌的盛唐早已过去，但诗歌仍千百年来在人们心间流淌;古希腊的城邦早已覆亡，而那自由民主的星火却依旧蔓延，在更深广的土地上，燃烧了几千年。

犹太王大卫在戒指上刻有一句铭文“一切都会过去”。是的，没有什么可以永存，包括痛苦。最宏伟的大厦最终也不过化作历史风尘中的一把碎土，最惨烈的苦痛最终亦能催生出心灵的芬芳。但我们创造过的思想与领略过的滋味，却在它们的载体与躯壳湮灭后，化作历史风沙中的一抹余香，缠绕亘古，永不逝去。

当年左光斗被魏忠贤杀害后，他的喉骨被命令磨成粉，随(后)魏忠贤一饮而下。连喉骨也彻底地碎了，魏忠贤才彻底放心了，如此，你还如何再上书、进言?他却不知，自己饮下的，是一生的恐惧。那东林党人的傲骨不灭，他们不屈的灵魂成为奸恶小人永远的噩梦，也幻化成为历史一曲永恒悲壮的绝响。

是的，一切都不会过去，一切还没有结束。形式的过去预言着内涵的永存。

当三闾大夫抱着石头与江水相拥，当西楚霸王自刎时的鲜血染红了整片夕阳，当普罗米修斯裸着身体被巨鹰啄食，当拉奥孔扭曲着身体仍想保卫自己的儿子，历史的悲风中发出阵阵呜鸣，但他们生命的内涵却那么响亮有力，数千年来仍叩击着人们的心灵，散发出永不消失的阵阵余香!

我的目光再一次停留在历史的湖畔，流水潺潺，鹤汀凫渚。历史的风猎猎作响，我听到一句响亮的声音：“老当益壮，宁移白首之心?穷且益坚，不坠青云之志。”一个老人的声音又从远处隐隐约约地飘忽而至：“老骥伏枥，志在千里!”

于是，我懂得了生命理应追求高远，高亢有力，如帕瓦罗蒂的男高音般使飞鸟为之徘徊，壮士听而下泪。像华兹华斯所写：“受尽了命运那巨棒的痛打，我的头在流血，但不曾垂下!”

而今，在这个身边风景迅速变化的时代里，你是否曾闻到，那风中的余香?xxx曾说，有人的地方就有江湖，有江湖的地方就有痛苦。而有生活的地方，有人生活的地方就有遗留与延续。昆德拉说：生活是棵长满可能的树。人生一切都有可能，都值得成为那风中的余香。

一直难忘的一次画展，是关于梵高的。只见《麦田里的乌鸦》掠起扑棱棱的翅膀，朝着乌沉沉的黑暗群飞而去，无比惨烈的叫声震荡荡地在空中回响------

那一刻，我仿佛闻到了风中的余香。

高考英语必背作文范文 篇37

一、判断句

(1)用“者……也”表判断

“廉颇者，赵之良将也。”

(2)句末用“者也”表判断

“城北徐公，齐国之美丽者也。”

(3)用“者”表判断

“四人者，庐陵萧君圭君玉，长乐王回深父，余弟安国*父，安上纯父。”

(4)用动词“为”或判断词“是”表判断

①为天下理财，不为征利

②汝是大家子

(5)用“即”“乃”“则”“皆”“本”“诚”“亦”“素”等副词表示肯定判断，兼加强语气，用“非”表示否定判断

①今天子有急，此乃臣效命之秋也。

②此诚危急存亡之秋也。

③梁将即楚将项燕。

④此则岳阳楼之大观也。

⑤臣本布衣。

⑥且相如素贱人。

⑦鱼，我所欲也，熊掌亦我所欲也。

⑧予本非文人画士。

(6)无标志判断句

文言文中的判断句有的没有任何标志，直接由名词对名词作出判断。

高考语文现代文答题基本知识

1.阅读:注意整体阅读,注意抓三个方面:一是要有文体特征意识(散文和小说,

新闻和传记的文体特征概述见后);二是要有思路分析意识(边读边概括各段落意思及段与段之间的关系);三是要有寻找中心句意识(每段的中心句,特别是文章的开头,结尾,过渡句以及标题)

2.审题:从题干中求启示，寻求解题的突破口，确保准确答题。题干具有以下作用:暗

示答题区域;暗示答题思路;暗示答题方法;暗示答案本省。审题时注意:

是否选准题眼(答题重点);是否选全要点(要答几个方面);

是否选准角度(以谁为陈述主体);是否选好恰当的句式(要与设问的句式一致)

组织语言时，注意“问”与“答”要照应好.如问：