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(2) 当从句的主语与主句的主语不一致，且that从句是否定式时，常用too…for sb. to do sth.转换。如： The work is so difficult that we can’t finish it on time. =The work is too difficult for us to finish it on time. 这份工作太难，我们不能按时完成。
(3) 当从句的主语与主句的主语一致，且that从句是肯定式时，常用…enough to do sth.转换。 He is so strong that he can lift the heavy box. =He is strong enough to lift the heavy box. 他强壮得足以举起那个重箱子。
(4) 当从句的主语与主句的主语不一致，且that从句是肯定式时，常用…enough for sb. to do sth.转换。如：
He spoke so clearly that I could hear. =He spoke clearly enough for me to hear him. 他说得很清楚，我能听明白。
让步状语从句
· 定义
让步状语从句一般翻译为“尽管……”或“即使……”，就是我们日常生活中用的“退一步说……”的感觉。常用 的引导词有：though/although（尽管），even if/even though（即使）， no matter+who/what/where/when/how（无论谁/什么/什么地方/什么时间/怎样） who/what/where/when/how+-ever等引导。 · 用法
1. though/although的用法
though和although意义一样，都意为“虽然；即使”讲，表示让步，一般情况下可互换使用。但although语气
强，多置于句首。though/although引导让步状语从句时，主句中不可以出现but，但可以用yet, still等。如：
Though/Although tea wasn't brought to the Western world until 1610, this beverage was discovered over
three thousand years before that.
虽然茶叶直到1610年才被带到西方国家，但这种饮料在那之前的三千多年被发现了。 The article is very important though/although it is short. 那篇文章虽然很短，但很重要。 2. even though/even if的用法
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这两个短语表示语气更强的让步，意为“即使”。如：
She insisted on her own opinion even though/even if she was wrong. 即使她错了，她依然坚持她自己的观点。
We’ll make a trip even though/even if the weather is bad. 即使天气不好，我们也要去旅行。
3. when/where/who/what/how/which+-ever的用法
“疑问词+-ever”引导让步状语从句时，可换成“no matter+疑问词”。如： Whatever/No matter what happens, he will help you. 无论发生什么，他都会帮你的。
Whenever/No matter when she comes, she brings a friend. 她不论什么时候来都要带一个朋友。
However/No matter how cold it is, she always goes swimming. 不管天气有多冷，她总是去游泳。
Whoever/No matter who you are, you must keep the law. 不管你是谁，你都要遵纪守法。
结果状语从句
· 定义
结果状语从句是指在复合句中表示主句动作所导致结果的状语从句，引导词主要有：so that, so…that, such...that等。
1. so …that … 与such … that…的用法区别： so..that结构为：so + 形容词或副词 + that + 从句
such..that 结构为：such + 形容词+a(an) + 单数可数名词 + that +从句 这两种句型往往可以互换。
My grandfather is so kind that everyone likes talking with him.
= My grandfather is such a kind person that everyone likes talking with him. 我爷爷心地善良，大家都喜欢和他聊天。 It is so cold that I have to wear warm clothes.
It is such cold weather that I have to wear warm clothes.) 天气如此的冷，以至于我不得不穿上暖和的衣服。
2. so…that句型的否定形式可用简单句too…to…或not…enough to代替。
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(1) 当从句的主语与主句的主语一致，且that从句是否定式时，常用too…to转换。如：
The little girl was so tired that she couldn’t walk farther.=The little girl was too tired to walk farther. 这个小孩太累了，她不能再走路了。
(2) 当从句的主语与主句的主语不一致，且that从句是否定式时，常用too…for sb. to do sth.转换。如： The work is so difficult that we can’t finish it on time.=The work is too difficult for us to finish it on time. 这份工作太难，我们不能按时完成。
(3) 当从句的主语与主句的主语一致，且that从句是肯定式时，常用…enough to do sth.转换。 He is so strong that he can lift the heavy box.=He is strong enough to lift the heavy box. 他强壮得足以举起那个重箱子。
(4) 当从句的主语与主句的主语不一致，且that从句是肯定式时，常用…enough for sb. to do sth.转换。如：
He spoke so clearly that I could hear.=He spoke clearly enough for me to hear him. 他说得很清楚，我能听明白。
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