三、这样记句式

先背熟 再悟通 后仿用 1.There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming ...

毫无疑问，地球在变暖。而全球变暖正是人类活动导致的...... There is no doubt that ..."毫无疑问......"，that引导同位语从句。 There is no doubt that the trip along the Yangtze River will be a better choice. (2017·北京高考书面表达)

毫无疑问，沿着长江的旅行将是一个更好的选择。 2.Without the "greenhouse effect"， the earth would be about thirty­three degrees Celsius cooler than it is.

如果没有这种"温室效应"，地球的温度将比现在的温度还要低33摄氏度左右。 without的介词短语在句中引导含蓄条件的虚拟语气。 Without your help, I couldn't have won the first place in the English Speaking Competition.

要是没有你的帮助，我不可能在英语演讲比赛中获得第一名。 3.They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.

他们还赞同下述观点：正是燃烧越来越多的化石燃料导致了二氧化碳的增加。 这是一个强调句结构，强调句中的主语"the burning of more and more fossil fuels"。 The passage indicates that it is human activity that has resulted in the environmental destruction to the village.

文章表明是人类活动对村庄造成了环境破坏。 4.Even if we start reducing the amount of carbon dioxide and other greenhouse gases ...

即使我们开始减少二氧化碳和其他温室气体的含量...... even if＝even though引导让步状语从句，意为"即使；尽管"。 Dean still refused to join in the game, even if/though we all did our best to persuade him.　

尽管我们都尽最大的努力去说服Dean，但是他依然拒绝参加这场比赛。