表示“数据变化”的常用句式
--- 表示增加、减少和波动的常用结构
?The number of … increased / rose suddenly / rapidly / dramatically / substantially / considerably / sharply / steeply from … to …
?There was a sudden / rapid / dramatic / substantial / considerable / sharp / steep increase / rise in the number of … from … to …
?There was a boom in the number of … from … to …
?The number of … climbed / jumped / rose suddenly / went sharply up / soared to …
in …
?There was an evident / apparent / obvious increase in … from … to …
?The number of … increased / rose steadily / gradually from … to …
?There was a steady / gradual increase / rise in the number of … from … to …?There was a slight / slow increase / rise in the number of … from … to …
?The number of … increased / rose slightly / slowly from …to …
?The number of … decreased / fell / dropped suddenly / rapidly / dramatically / substantially / sharply / steeply form … to …
?There was a sudden / rapid / dramatic / substantial / sharp / steep decrease / drop / reduction / decline in the number of … from … to …
?There was an evident / apparent / obvious reduction / decline in … from … to …?The number of … dropped sharply / went sharply down to … in …
?The number of … increased / rose by …% from … to …
?The number of … fell / dropped / declined by …% from… to …
?There was a slight fluctuation in the number of … from … to …
表示变化不大或没有变化的常用结构
?The number of … remained steady / stable / constant between … and …
?The number of … stayed the same between … and …
?There was little / hardly any change in the number of … between … and …
?The number of … remained level between … and …
?The number of … remained steady at approximately … between … and …
?The number of … appeared to level off.
表示最高点或最低点的常用结构
?The situation / figures reached a peak / a high at …% in …
?The situat ion / figures bottomed out at …% in …
?The situation / figures peaked at …% in …
?The situation / figures hit a trough at …% in …
?The number soared to a record high of …
表示倍数的常用结构
? A is twice / three times / four times what it was in …
? A is twice / three time s / four times the amount in …
? A is twice / three times / four times as much / many as … in …
? A is twice / three times / four times more than … in …
?From … to …, A increased / dropped more than six fold.
?The output of steel in 1990 was 400% up compared with in 1980.
?The figure was roughly doubled / tripled / quintupled between … and …
1．对立观点式
A．有人认为X 是好事，赞成X，为什么？
B．有人认为X 是坏事，反对X，为什么？
C．我的看法。
写作模板
?Some people are in favor of the idea of doing X. They point out the fact that 支持X 的第一个原因。They also argue that 支持X 的另一个原因。
?However, other people stand on a different ground. They consider it harmful to do X.
They firmly point out that 反对X 的第一个理由。An example can give the details of this argument: 一个例子。
?There is some truth in both arguments. But I think the advantages of X overweigh the disadvantages. In addition to the above-mentioned negative effects it might bring about, X also may X 的有一个坏处。
2．批驳观点式
?A．一个错误观点。
?B．我不同意。
写作模板
?Many people argue that 错误观点。By saying that, they mean 对这个观点的进一步解释。An example they have presented is that 一个例子。（According to a survey performed by X on a group of Y, almost 80% of them 赞成这个错误观点或者受到这个错误观点的影响）。
?There might be some element of truth in these people’s belief. But if we consider it in depth, we will feel no reservation to conclude that 与错误观点相反的观点。There are a number of reasons behind my belief. (以下参照辩论文的议论文写法)。
3. 社会问题（现象）式
A．一个社会问题或者现象。
B．产生的原因
C．对社会和我们生活的影响
D．如何杜绝。（如果是问题的话）
E．前景的预测。
写作模板
Nowadays, there exists an increasingly serious social/economic/environmental problem. (X has increasingly become a common concern of the public). According to a survey, 调查内容说明这种现象的情况。（或者是一个例子）。
There are a couple of reasons booming this problem/phenomenon. 下面参照辩论式议论文的写法。
X has caused substantial impact on the society and our daily life, which has been articulated in the following aspects. 参照辩论式议论文的写法。
A dozen of measures are supposed to take to prevent X from bringing us more harm. 参照辩论式议论文的写法。
Based on the above discussions, I can easily forecast that more and more people will ……..
[强烈推荐]英语四级作文万能模板+常用句型 Along with the advance of the society more and more problems are brought to our attention, one of which is that.... 随着社会的不断发展，出现了越来越多的问题，其中之一便是____________。 As to whether it is a blessing or a curse, however, people take different attitudes. 然而，对于此类问题，人们持不同的看法。（Hold different attitudes 持不同的看；Come up with different attitudes 有不同的看法） As society develops, people are attaching much importance to.... 随着社会的发展，人们开始关注............ People are attaching more and more importance to the interview during job hunting 求职的过程中，人们慢慢意识到面试的重要性。 As to whether it is worthwhile ....., there is a long-running controversial debate. It is quite natural that people from different backgrounds may have divergent attitudes towards it. 关于是否值得___________的问题，一直以来争论不休。当然，不同的人对此可能持不同的观点。 In the process of modern urban development, we often find ourselves in a dilemma. 在都市的发展中，我们往往会陷入困境。 Recently the phenomenon has aroused wide concern, some people are in alarm that.... 最近，这种现象引起了人们的广泛关注，有人开始担心______________。 The human race has entered a completely new stage in its history, with the increasingly rapid economic globalization and urbanization, more problems are brought to our attention. 人类进入了一个历史的崭新的阶段，经济全球化、都市化的速度不断加快，随之给我们带来了很多问题。 ...... plays such an important role that it undeniably becomes the biggest concern of the present world, there comes a question, is it a blessing or a curse?" _______显得非常重要而成为当今世界所关注的最大的问题，这是无可厚非的。不过，问题是："我们该如何 Now we are entering a new era, full of opportunities and challenges, 现在我们正在进入一个充满机会和挑战的新时代。 提纲式作文
1 起伏不定go up and down / fluctuate/ be unstable/ be in flexible 2 The first point to note is the huge increase in the number of 需要注意的第一点就是…的急剧增 长 3 The statistics show that 这些数据表明 4 占百分之几 Form/comprise/make up/constitute/ account for ….percent 5 This graph describes the trend of 该图描述了…的趋势
6 The statistics lead us to the conclusion that 由这些数据，我们可以做出如下结论 8 增加：Increase / raise / rise / go up/ soar/ ascend/ mount/ climb 9 减少：Decrease / go down / drop / fall/ reduce/ descend/ shrink /decline/sink 10 稳定：Remain stable / stabilize / level off/ remain unchanged 11 It can be seen from the table that 由表格我们可以看出 12 The table shows the changes in the number of… over the period from…to… 该表格展示了从…到…数据的变化
IELTS套句式写作大全 第一部分：TASK1图表写作套句精选 1.the table shows the changes in the number of...over the period from...to... 该表格描述了在...年之...年间...数量的变化。 2.the bar chart illustrates that... 该柱状图展示了... 3.the graph provides some interesting data regarding... 该图为我们提供了有关...有趣数据。 4.the diagram shows (that)... 该图向我们展示了... 5.the pie graph depicts (that).... 该圆形图揭示了... 6.this is a cure graph which describes the trend of... 这个曲线图描述了...的趋势。 7.the figures/statistics show (that)... 数据（字）表明... 8.the tree diagram reveals how... 该树型图向我们揭示了如何... 9.the data/statistics show (that)... 该数据（字）可以这样理解... 10.the data/statistics/figures lead us to the conclusion that... 这些数据资料令我们得出结论... 11.as is shown/demonstrated/exhibited in the diagram/graph/chart/table... 如图所示... 12.according to the chart/figures... 根据这些表（数字）... 13.as is shown in the table... 如表格所示... 14.as can be seen from the diagram,great changes have taken place in... 从图中可以看出，...发生了巨大变化。 15.from the table/chart/diagram/figure,we can see clearly that...or it is clear/apparent from the chart that... 从图表我们可以很清楚（明显）看到... 16.this is a graph which illustrates... 这个图表向我们展示了... 17.this table shows the changing proportion of a & b from...to... 该表格描述了...年到...年间a与b的比例关系。 18.the graph,presented in a pie chart, shows the general trend in... 该图以圆形图形式描述了...总的趋势。 19.this is a column chart showing... 这是个柱型图，描述了... 20.as can be seen from the graph,the two curves show the flutuation of... 如图所示，两条曲线描述了...的波动情况。 21.over the period from...to...the...remained level. 在...至...期间，...基本不变。 22.in the year between...and... 在...年到...期间... 23.in the 3 years spanning from 1995 through 1998... 1995年至1998三年里... 24.from then on/from this time onwards... 从那时起... 25.the number of...remained steady/stable from (month/year) to (month/year). ...月(年)至...月（年)...的数量基本不变。 26.the number sharply went up to... 数字急剧上升至...
四级作文常用句型模板及套句大全 综合运用篇 Along with the advance of the society more and more problems are brought to our attention, one of which is that.... 随着社会的不断发展，出现了越来越多的问题，其中之一便是____________。 As to whether it is a blessing or a curse, however, people take different attitudes. 然而，对于此类问题，人们持不同的看法。（Hold different attitudes 持不同的看；Come up with different attitudes 有不同的看法） As society develops, people are attaching much importance to.... 随着社会的发展，人们开始关注............ People are attaching more and more importance to the interview during job hunting 求职的过程中，人们慢慢意识到面试的重要性。 As to whether it is worthwhile ....., there is a long-running controversial debate. It is quite natural that people from different backgrounds may have divergent attitudes towards it. 关于是否值得___________的问题，一直以来争论不休。当然，不同的人对此可能持不同的观点。 In the process of modern urban development, we often find ourselves in a dilemma. 在都市的发展中，我们往往会陷入困境。 Recently the phenomenon has aroused wide concern, some people are in alarm that.... 最近，这种现象引起了人们的广泛关注，有人开始担心______________。 The human race has entered a completely new stage in its history, with the increasingly rapid economic globalization and urbanization, more problems are brought to our attention. 人类进入了一个历史的崭新的阶段，经济全球化、都市化的速度不断加快，随之给我们带来了很多 问题。 ...... plays such an important role that it undeniably becomes the biggest concern of the present world, there comes a question, is it a blessing or a curse?" _______显得非常重要而成为当今世界所关注的最大的问题，这是无可厚非的。不过，问题是："我 们该如何抉择？" Now we are entering a new era, full of opportunities and challenges, 现在我们正在进入一个充满机会和挑战的新时代。 展现问题篇 问题的常用词：question, problem, issue Recently, the issue of ...... has been brought into public focus. 近来，_______的问题引起了社会的广泛关注。 Now we are entering a brand new era full of opportunities and innovations, and great changes have taken place in people's attitude towards some traditional practice. 现在我们进入了一个充满机遇和创新的崭新时代，很多人对某些传统的看法也发生了很大改 变。 Recently the issue of whether or not ... has been in the limelight and has aroused wide concern in the public. 近来，是否_______的问题已经非常明确而且引起了社会的广泛关注。 The issue whether it is good or not to .... has aroused a heated discussion all over the country. ______的利与弊已在全国范围内引起热烈的讨论。 At present, some people think ....while others claim ...Both sides have their merits. 目前，一些人认为_______而另一些人则认为_______。其实，两种观点都其可取之处。 People rarely reach an absolute consensus on such a controversial issue.
英语图表常用句型词组． 英语图表作文写作常识50例 一、图表作文写作常识 1、图形种类及概述法: 泛指一份数据图表:a data graph/chart/diagram/illustration/table 饼图:pie chart 直方图或柱形图:bar chart / histogram 趋势曲线图:line chart / curve diagram 表格图:table
流程图或过程图:flow chart / sequence diagram 程序图:processing/procedures diagram 2、常用的描述用法 The table/chart diagram/graph shows (that) According to the table/chart diagram/graph As (is) shown in the table/chart diagram/graph As can be seen from the table/chart/diagram/graph/figures，figures/statistics shows (that)…… It can be seen from the figures/statistics We can see from the figures/statistics It is clear from the figures/statistics It is apparent from the figures/statistics table/chart/diagram/graph figures (that) …… table/chart/diagram/graph shows/describes/illustrates
雅思基础班图表作文期末汇总卷 Part One 图表作文各部分句型总结： 开头段句型总结： 1. This is a diagram/ chart /figure which shows how people obtain water in the wild in order to survive. 2. This is a chart which shows the trend of oil supply and dema nd. 3. This is a colu mn chart show ing … 4. The diagram illustrates /describes/ depicts the cha nges in nu mber of male teachers from 1998 to 1999 5. The bar chart illustrates the nu mber of overseas stude nts from five develop ing coun tries. 6. The graph, prese nted in a pie form, shows the gen eral trend in … 基本句型： shows /show nu mber 定语从句 betwee n and . 过去分词 + over a spa n of years/ mon ths 现在分词 in the year and . （修饰语/定语） procedure 等 类似句型： The chart + is/are + the proporti on of + A/B + from to . Diagram reflects /reflect average in come Graph states /state sales volume bar chart illustrates/illustrate perce ntages table displays /display expe nse two pie charts compares /compare in come A and B reveals /reveal 等 cha nges/ freque ncy
考研英语图表类作文常用词汇及句型 2015-09-22屠屠英语 1、主章开头 图表类型：table、chart、diagram、graph、column chart、pie graph 描述：show、describe、illustrate、can be seen from、clear、apparent、reveal、represent 内容：figure、statistic、number、percentage、proportion 2、表示数据变化的单词或词组 rapid/rapidly 迅速的，飞快的，险峻的dramatic/dramatically 戏剧性的，生动的 significant/significantly 有意义的，重大的，重要的sharp/sharply 锐利的，明显的，急剧的steep/steeply 急剧升降的steady/steadily 稳固的，坚定不移的 gradual/gradually 渐进的，逐渐的 slow/slowly 缓慢的，不活跃的 slight/slightly 轻微的、略微地stable/stably 稳定的 3、图表中的数据（Data）具体表达法 数据（Data）在某一个时间段固定不变：fixed in time 在一系列的时间段中转变：changes over time 持续变化的data在不同情况下： 增加：increase / raise / rise / go up …… 减少：decrease / grow down / drop / fall …… 波动：fluctuate / rebound / undulate / wave …… 稳定：remain stable / stabilize / level off …… 最常用的两种表达法：动词+副词形式（Verb+Adverb form）形容词+名词形式（Adjective+Noun form） 4、其它在描述中的常用到的词 significant changes 图中一些较大变化noticeable trend 明显趋势during the same period 在同一时期 grow/grew 增长 distribute 分布，区别unequally 不相等地in the case of adv. 在……的情况下 in terms of / in respect of / regarding 在……方面 in contrast 相反，大不相同
[英语作文衔接句型]高中英语作文常用句型(万能 模板) [英语作文衔接句型]高中英语作文常用句型（万能模板）2014-8-2117:08|发布人:404130436|阅读:2025| 在英语的写作中,时常需要用到列举的或者衔接的句型,那么现在就衔接的句型来看有哪些呢？其实根据衔接词本身在文章中起到的 那么起到衔接的作用,主要分为以下四类,即“起”、“承”、“转”、“合”． 句型到底有哪些呢？下面可以来详细的看一下. (一)表示“起”的词/词组:用于开篇引出扩展句. atfirst最初foronething…(foranother) atpresent现在;当今首先…（其次)… currently目前;最后recently最近 first(ly)第一ingeneral一般说来 inthebeginning起初onetheonehand…(ontheotherhand) tobeginwith首先;第一一方面…（另一方面) firstofall首先;第一generallyspeaking一般地说 inthefirstplace首先;第一onthewhole总起来说 lately最近tostartwith首先;第一 presently现在;此刻now现在 (二)有关“承”的常用词语:用来承接上文. after/afterthat/afterwards此后bythistime此时 afterafewdays几天以后certainly无疑地;当然地
afterawhile过了一会儿therefore因此;结果 also/too并且;又forexample例如 atthesametime同时forinstance例如 beside此外forthispurpose为了这个目的 besides/what,smore而且;此外fromnowon从此inaddition此外second第二;第二点 除…之外secondly第二 inadditionto… infact事实上similarly同样地 inotherwords换句话说so所以 inparticular特别(地)soon不久 inthesameway同样地still仍然 bytheway顺便提一句then然后 indeed的确third第三;第三点 meanwhile与此同时thirdly第三 moreover而且,此外foranother其次 nodoubt无疑地suchas正如 obviously明显地later后来 ofcourse当然truly事实上;真实地 particularly特别地unlike…不像……；和……不同whatismore而且;此外 (三)有关“转”的常用词语:用来表示不同或相反的意见. afterall毕竟fortunately幸运地 allthesame依然;照样however然而;无论如何
英语作文漫画图表常用句型 1．The cartoon/picture briefs/depicts/shows... 例句：The cartoon briefs the history of commercial fishing in the 20th cent ury. 2．In the picture, ... 例句：In the picture, an American girl looks so pleased in the richly decora ted Chinese national costumes. 3．Looking at the picture, ... 例句：Looking at the picture, many people cannot help laughing. ... 4．...。This is what the picture indicates. 例句：It is not unusual for Chinese children to get money from their paren ts, grandparents or relatives during the Spring Festival. ... This is what th e picture indicates. 5．The two pictures here illustrate... 例句：The two pictures here illustrate how a flower in a greenhouse is des troyed when exposed to a storm. 6．In the first picture, .... While in the second one, ... 例句：In the first picture, a lonely small boat, in spite of the good catch, d oes not disturb the fishes that are swimming leisurely. While in the secon d one, the sea is over-crowded with fishing boats, and a lonely fish, desp erately trying to escape, finds no place to hide. 7．As depicted in the picture/As we can see in the picture/As can been se en from the picture/As is shown by the drawing, ... 例句：As can be seen from the picture, the car breaks stops on the way a nd cannot move any further.
图表类英语四级作文常用句型 开篇句式 1）According to the figures given in the table,+ 主题句（the world population is increasing rapidly. 2)The table(pie chart, line graph, bar graph) shows( indicates, illustrates, makes it clear) that +主题句（One’s income is closely linked to one’s age and education） 3) It can be seen from (It is clear from, It is evident from, It is illustrated from the table that + 主题句（the better one is educated , the higher his income is） 4) As the bar chart shows, the number of people below poverty line decreased dramatically during the years of 1978 to 1998. 图表式作文模板 写作模板——图表式作文 It is obvious in the graphic/table that the rate/number/amount of Y has undergone dramatic changes. It has gone up/grown/fallen/dropped considerably in recent years (as X varies). At the point of X1, Y reaches its peak value of …(多少). What is the reason for this change? Mainly there are … (多少)reasons behind the situation reflected in the graphic/table. First of all, …(第一个原因). More importantly, …(第二个原因). Most important of all, …(第三个原因). From the above discussions, we have enough reason to predict what will happen in the near future. The trend described in the graphic/table will continue for quite a long time (if necessary measures are not taken括号里的使用于那些不太好的变化趋势). 1.the table sho ws the changes in the number of……over the period from……to…… 该表格描述了在……年之……年间……数量的变化。 2.the bar chart illustrates that…… 该柱状图展示了…… 3.the graph provides some interesting data regarding…… 该图为我们提供了有关……有趣数据。 4.the diagram shows (that)…… 该图向我们展示了…… 5.the pie graph depicts (that)…… 该圆形图揭示了…… 6.this is a cure graph which describes the trend of……
2 The first point to note is the huge increase in the number of 需要注意的第一点就是…的急剧增长 3 The statistics show that 这些数据表明 4 占百分之几Form/comprise/make up/constitute/ account for ….percen t 5 This cure graph describes the trend of 该曲线图描述了…的趋势 6 The statistics lead us to the conclusion that 由这些数据，我们可以做出如下结论 7 As can be seen from the line graph, 由线状图我们可以看出 8 增加：Increase / raise / rise / go up/ soar/ ascend/ mount/ climb 9 减少：Decrease / grow down / drop / fall/ reduce/ descend/ shrink to/decline 10 稳定：Remain stable / stabilize / level off/ remain unchanged 11 It can be seen from the table that 由表格我们可以看出 12 The table shows the changes in the number of… over the period from…to…该表格展示了从…到…数据的变化 13 The table provides some data of 该表格提供了有关…的数据 14 As can be seen clearly from the table, 从表格中我们可以清楚地看出， 15 As can be seen from the table, great changes have taken place in... 从表格中可以看出，...发生了巨大变化 16 This table illustrates the changing proportion of A and B from...to... 该表格描述了...年到...年间a与b的比例关系 17 急剧地sharply, steeply, dramatically, drastically, suddenly 18 显著地,considerably, significantly, noticeably, remarkably, rapidly 19 稳步地, 逐渐地steadily, moderately, gradually, smoothly 20 轻微地, 缓慢地slightly, slowly, mildly, moderately 21 The following diagram shows the structure of...... 以下的图展示了...的结构 22 The picture illustrates...... 该图展示了... 23 It mainly consists of following steps. 它主要包括以下步骤 24 The whole procedure can be divided into...stages. 整个的过程可以分为...步 25 The first step is to 第一步是...
xx英语作文万能模板及万能句型汇总 作文万能模板 一、阐述主题题型 要求从一句话或一个主题出发，按照提纲的要求进行论述． １．阐述名言或主题所蕴涵的意义．２．分析并举例使其更充实．二、解决方法题型 要求考生列举出解决问题的多种途径 １．问题现状２．怎样解决（解决方案的优缺点）Confronted with A，we should take a series of effective measures to cope with the situation. For one thing，---------------（解决方法一）。For another -------------（解决方法二）。Finally，--------------（解决方法三）。Personally，I believe that -------------（我的解决方法）。Consequently，I'm confident that a bright future isawaiting us because --------------（带来的好处）。 三、说明利弊题型 这种题型往往要求先说明一下现状，再对比事物本身的利弊，有时也会单从一个角度（利或弊）出发，最后往往要求考生表明自己的态度（或对事物前景提出预测） １.说明事物现状２.事物本身的优缺点（或一方面）３.你对现状
（或前景）的看法 Nowadays many people prefer A because it has a significant role in our daily life. Generally，its advantages can be seen as follows. First ----------------（Ａ的优点之一）。Besides -------------------（Ａ的优点之二）。 1 / 13 But every coin has two sides. The negative aspects are also apparent. One of the important disadvantages is that ----------------（Ａ的第一个缺点）．To make matters worse，------------------（Ａ的第二个缺点）． 四、议论文的框架 （1）不同观点列举型（选择型） There is a widespread concern over the issue that __作文题目_____. But it is well known that the opinion concerning this hot topic varies from person to person. A majority of people think that _ 观点一________. In their views there are 2 factors contributing to this attitude as follows：in the first place，___原因一_______.Furthermore，in the second place，___原因二_____. So it
英语六级图表作文常用句型总结 为了帮助考生们更好地复习六级考试, 网为各位考生整理了英语六级图表作文常用句型,供考生们参考使用。 以下是图表作文常用的表达法： 1. According to the figures shown in the table/graph we can see/conclude that... 例句：According to the figures shown in the table, we can see that great changes have been taking place in people's diet over the period from 1988 to 1998. 2. We can see/We have noted/It can be seen from the table/chart/graph that... 例句：We have noted from the graph that there is a wide gap between the top ten universities both of China and of the world. 3. The graph/table/chart shows/indicates/reveals/points out that... 例句：The chart reveals that the number of road accidents is spiraling upward every year as more and more highways are constructed all over China. 4. As is shown/can be seen in the chart/graph/diagram
中考英语作文万能模板及万能句型汇总 作文万能模板 一、阐述主题题型 要求从一句话或一个主题出发，按照提纲的要求进行论述． １．阐述名言或主题所蕴涵的意义．２．分析并举例使其更充实． 二、解决方法题型 要求考生列举出解决问题的多种途径 １．问题现状２．怎样解决（解决方案的优缺点） In recent days，we have to face a problem-----A，which is becoming more and more serious. First，------------（说明Ａ的现状）．Second，---------------（举例进一步说明现状）Confronted with A，we should take a series of effective measures to cope with the situation. For one thing，---------------（解决方法一）。For another -------------（解决方法二）。Finally，--------------（解决方法三）。 Personally，I believe that -------------（我的解决方法）。Consequently，I’m confident that a bright future isawaiting us because --------------（带来的好处）。 三、说明利弊题型 这种题型往往要求先说明一下现状，再对比事物本身的利弊，有时也会单从一个角度（利或弊）出发，最后往往要求考生表明自己的态度（或对事物前景提出预测） １.说明事物现状２.事物本身的优缺点（或一方面）３.你对现状（或前景）的看法Nowadays many people prefer A because it has a significant role in our daily life. Generally，its advantages can be seen as follows. First ----------------（Ａ的优点之一）。Besides -------------------（Ａ的优点之二）。 But every coin has two sides. The negative aspects are also apparent. One of the important disadvantages is that ----------------（Ａ的第一个缺点）．To make matters worse，------------------（Ａ的第二个缺点）． Through the above analysis，I believe that the positive aspects overweigh the negative ones. Therefore，I would like to ---------------（我的看法）．（From the comparison between these positive and negative effects of A，we should take it reasonably and do it according to the circumstances we are in. Only by this way，---------------（对前景的预测）．）