Part 1: 虛擬語氣的語法概念

1. 真實條件句：主將從現(xiàn)

If it rains tomorrow, I will stay at home preparing for my IELTS test.

If time permits tomorrow, we’ll go shopping together.

2. 虛擬語氣：明知不可而假設(shè)，從句時態(tài)退一格。

從句對現(xiàn)在虛擬：If I were you, I would marry him without any hesitation.

從句對過去虛擬：If you had come yesterday, you would have met that famous movie star. 

從句對將來虛擬：If it should rain, the crops would be saved. 

語法規(guī)則：

If 從句時態(tài)退一格，

主句用would/could等+動詞原形V（對現(xiàn)在和將來的虛擬）， 

或者主句用would/could have done(對過去的虛擬）。

3.簡化版的雅思寫作虛擬語氣

Without...,

Without the prevalence of long-distance flight, it would not be possible for us to study in a foreign country so easily.

Part 2： 正反論證的邏輯概念

1.論點：電給我們的生活帶來了便利。

  有了電，真方便...

  沒了電，看不見...

1.論點： 我對你的愛，那么真。

你是我的太陽，你是我的月亮，你是我生命中最重要的那一個。

沒有你跟我在一起的話，我無法呼吸無法生活...

1.劍橋雅思8分官方范文中的虛擬語氣正反論證范例

Research indicates that the characteristics we were born with have much more influence on our personality and development than experiences we have had in our life. Which do you think is the major influence?

The traits we inherit from our parents and the situation and experiences that we encounter in life are constantly interacting. It is the interaction of the two that shapes a person's personality and dictates how that personality develops. If this were not true, we would be able to predict the behavior and character of a person from the moment they were born.

Part 3： 虛擬語氣與正反論證在雅思寫作中的完美結(jié)合

1. 犯罪話題：

On the one hand, fixed punishments will have a deterring effect on crimes.... Without these fixed penalties for the crimes people are convicted with, they would be less afraid of the legal consequences of their wrongdoing, thus resulting in a much higher crime rate.

2. 慈善援助話題

Charity is not to gain profit or benefits, but to help others selflessly. If a charity organization did nothing to give a hand to people crying for help with bleeding legs just because they are not living next door, I would not donate a penny to them.