Ⅱ.重点句型详解

1．Even_if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.即使我们开始减少二氧化碳和其他温室气体的含量，在(未来)几十年或几个世纪内，气候仍会持续转暖。

even if＝even though引导让步状语从句，意为“即使，纵使”。

①Even if we achieve great success in our work, we should not be conceited.

即使我们在工作中取得了巨大的成功，也不应该自满。

②Even if some foreigners speak ill of our Shenzhou Ⅶ spaceship, we still stick to the route of peaceful exploration of the space.

即便某些外国人对中国“神舟”七号说三道四，但我们仍将坚持和平探索太空的路线不动摇。

[即境活用1]　(1)Jack felt grateful to his teacher ______ he couldn’t find words to express it.

A．as if　　B．even though       C．so that       D．now that

解析：句意：尽管无法用言语表达，但Jack仍对老师感激不尽。只有even though符合句意要求。

答案：B

(2)The government should protect the old valuable buildings ______ they are not in harmony with the modern ones nearby.

A．even though         B．as if        C．so that         D．now that

解析：句意为：虽然这些古建筑与附近现代化建筑物不协调，但政府有必要保护它们。只有even though表示让步的意义。

答案：A

2．It is OK to leave an electrical appliance on so_long_as you are using it—if not, turn it off! 在使用电器设备时你可以把它一直开着，如果不用把它关掉！

as/so long as 意为“只要”，用来引导条件状语从句。

①As long as you can be back before 10 o‘clock, you can go out.

只要你10点钟前能回来，你可以外出。

②As long as you accept our conditions, we‘ll start working immediately.

只要你答应我们的条件，我们就立即开始工作。

归纳拓展：as far as “到达某个提及的地方”和“在……范围内；就……而言”。

as many as “多达……”“达到……之多”。与可数名词复数连用。

as much as “多达……”“达到……之多”。与不可数名词连用。

as soon as 作“一……就”解，引导时间状语从句。

as well as 不仅后者，前者也……；除……之外

as good as 和……一样好，实际上相当于……

[即境活用2]　(2008•全国Ⅰ)—Have you got any idea for the summer vacation?

—I don't mind where we go ______ there's sun, sea and beach.

A．as if           B．as long as        C．now that           D．in order that

解析：as long as “只要”，引导条件状语从句。

答案：B