First/firstly/first of all/ to begin with/to start with/ in the first place,
First and foremost;For one thing(… for another);On the one hand(…on the other)
Second/secondly;Third/thirdly;Besides/in addition/ in addition to…;Furthermore/what is more/moreover;Namely/ in other words;In the same way/similarly/likewise;Afterwards/ after that/ after a while;Consequently/as a consequence/as a result
But/yet;However/Nonetheless/Nevertheless;On the contrary/conversely;Though/although/even though/even if;Unlike…. ,A…;Different from… , A….;In fact/ as a matter of fact,
Finally/eventually/in the final analysis;In conclusion/to conclude;In short/In brief;In summary/ to sum up/in sum;As I have said/as has been noted;Given the fact that…., we can come to the conclusion that…
In some countries, many more people are choosing to live alone nowadays than in the past. Do you think this is a positive or negative development?
In recent years it has become far more normal for people to live alone,particularly in large cities in the developed world.
(句型结构：It adj. for sb. to do sth. 后置状语补充，注意完成时has become;注意particularly的用法，举特例方便直接，类似especially但语气更强; in the developed world比in developed countries更地道;far more修饰normal代入感强)
In my opinion, this trend could have both positive and negative consequences in equal measure.
(句型结构：简单句 后置状语;虚拟语气could have;consequences高分词;in equal measure高分搭配)
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The rise in one-person households can be seen as positive for both personal and broader economic reasons.
(句型结构：被动 后置状语并列;主语the rise in one-person households替换more people choose to live alone，地道高分搭配准确;seen as语法得分点;personal & broader economic词汇得分点)
On an individual level, people who choose to live alone may become more independent and self-reliant than those who live with family members.
(句型结构：前置状语 主语who从句 谓语比较级 宾语who从句，高分复合句;self-reliant高分词，展示词汇量)
A young adult who lives alone, for example, will need to learn to cook, clean, pay bills and manage his or her budget, all of which are valuable life skills; an increase in the number of such individuals can certainly be seen as a positive development.
(句型结构：主语从句 插入语 不定式并列 宾语all of which从句;简单分句 被动;valuable得分词;an increase语法得分点;such individuals指代准确，语法和词汇得分点)
From an economic perspective, the trend towards living alone will result ingreater demand for housing.
(句型结构：前置状语 后置定语 简单句;trend towards living搭配准确，词汇和语法得分点;result in学术搭配，词汇得分点;demand for housing词汇得分点)
This is likely to benefit the construction industry, estate agents and a whole host of other companies that rely on homeowners to buy their products or services.
(句型结构：简单句 宾语并列 宾语that从句;likely to benefit学术搭配，词汇得分点;construction industry & estate agents展示词汇量;rely on homeowners词汇得分点)
Main Paragraph 2
However, the personal and economic arguments given above can be considered from the opposite angle.
(句型结构：转折 简单句被动;given above非谓语修饰，语法得分点;be considered from学术搭配，词汇语法得分点;the opposite angle词汇得分点)
Firstly, rather than the positive feeling of increased independence, people who live alone may experience feelings of loneliness, isolation and worry.
(句型结构：前置状语 主语从句 宾语并列;rather than无痕迹对比，语法和CC得分点;loneliness & isolation高分词)
They miss out on the emotional support and daily conversation that family or flatmates can provide, and they must bear the weight of all household bills and responsibilities; in this sense, perhaps the trend towards living alone is a negative one.
(句型结构：简单句并列 宾语从句 简单分句;miss out on地道搭配;emotional support, daily conversation & flatmates词汇加分点;bear the weight of高分搭配，词汇得分点;a negative one指代准确避免重复，语法得分点)
Secondly, from the financial point of view, a rise in demand for housing is likely to push up property prices and rents.
(句式结构:前置状语 简单句;the financial point of view替换an economic perspective;likely to push up学术搭配;property prices & rents词汇得分点)
While this may benefit some businesses, the general population, including those who live alone, will be faced with rising living costs.
(句式结构：让步句 插入语补充 被动;be faced with地道搭配;rising living costs词汇得分点)
In conclusion, the increase in one-person households will have both beneficial and detrimental effects on individuals and on the economy.
(句式结构：总结 简单句 宾补;detrimental不利的，高分词，beneficial & detrimental替换positive & negative;两个on介词短语并列，语法得分点)