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①It is thoughtful of Andy to play his CDs for us.
②It is clever of Amy to make the birthday cards.
同学们明白上述两个句子的意思吗?这可是在牛津9A Unit1中所学过的句型哟!这两个句子均使用了一个很重要的句型:“It is adj. of... to-infinitive”。下面就该句型的用法特点阐述如下:
[个性展示]
“It is adj. of... (not)to-infinitive”句型是中考命题热点之一,通常用来表示人的内在品质,常用形容词通常有:clever, kind, generous, good, thoughtful, silly等。如:
It is very kind of you to help me with my English. 你帮助我学英语,真是太好了!
It’s wrong of you not to send her an e-mail. 你不给她发封电子邮件,是错误的。
[相似句型]
牛津8B Unit6中还学过与上述句型相似的一个句型,即“It is adj. for... to-infinitive”,该句型中的形容词不表示人的内在品质,通常表示客观情况,即表示 to-infinitive的情况特征。如:
It’s important for us to keep the water clean.对我们而言,保持水清洁是重要的。
It was impossible for him to finish the homework in an hour. 对他来说,在一小时内完成家庭作业是不可能的。
[比较鉴别]
在实际运用过程中,是用of...to-infinitive还是用for...to-infinitive呢?请看:
1. of...to-infinitive 做主语时,只能接形容词作表语;for...to-infinitive在句中做主语时,其表语可以是形容词也可以是名词。如:
It was too foolish of you to do so. 你那么做真是太愚蠢了。
It is impossible for you to get there in such a short time. 你在这么短的时间内到达那儿是不可能的。
It will be a mistake for you to miss the chance.你错过那个机会将是个错误。
2. 在of...to-infinitive结构中,of后面的名词或代词与前面的形容词(kind, clever,foolish,selfish,polite,right,wrong,careful等)有逻辑上的主表关系;而for...to-infinitive结构中,for后面的名词或代词与前面的形容词(easy,hard,difficult,possible,necessary,important,heavy等)没有逻辑上的主表关系。如:
It is kind of you to lend me so much money. 你心肠真好,借给我这么多钱。
It is hard for you to translate the sentence into English. 把这个句子翻译成英语对你来说是有困难的。
3. 有些形容词(如nice, right, wrong, good, wise等)既可用于of...to-infinitive结构,也可用于for...to-infinitive结构。但两者强调的重点不同,意义也有区别。试比较:
It is wise of them to turn down the suggestion. 他们很明智,拒绝了这个建议。(强调“他们”是明智的)
It is wise for them to turn down the suggestion. 他们拒绝这个建议是明智的。(强调“拒绝建议”这一行为是明智的)
【链接中考】
1. It’s very nice ______ you to give me the chance.(2005年天津)
A. ofB. for
C. toD. at
解析:you与nice可构成逻辑上的主表关系,即You’re nice,且符合“of... to-infinitive”句型表示人的内在品质这一条件,所以答案选A。
2. It’s important ______ the piano well.(2006年天津)
A. of him to play
B. for him to play
C. of him playing
D. for him playing
解析:him与important不可构成逻辑上的主表关系,且符合“for… to-infinitive”句型结构,用以表示客观情况,所以答案选B.
【练一练】
()1. It is very kind ______ you to help me water the flowers.
A. ofB. toC. forD. on
()2. It’s important ______ you to learn English very well.
A. ofB. onC. toD. for
()3. It’s stupid of you ______ think you are always right.
A. forB. inC. toD. by
()4. It is very difficult ______ the girl ______ out the problem.
A. to;work B. of;to work
C. for;to work D. with;working
()5. ______ is generous of David to lend me his bike.
A. ThereB. ItC. HereD. He
Keys: ADCCB
②It is clever of Amy to make the birthday cards.
同学们明白上述两个句子的意思吗?这可是在牛津9A Unit1中所学过的句型哟!这两个句子均使用了一个很重要的句型:“It is adj. of... to-infinitive”。下面就该句型的用法特点阐述如下:
[个性展示]
“It is adj. of... (not)to-infinitive”句型是中考命题热点之一,通常用来表示人的内在品质,常用形容词通常有:clever, kind, generous, good, thoughtful, silly等。如:
It is very kind of you to help me with my English. 你帮助我学英语,真是太好了!
It’s wrong of you not to send her an e-mail. 你不给她发封电子邮件,是错误的。
[相似句型]
牛津8B Unit6中还学过与上述句型相似的一个句型,即“It is adj. for... to-infinitive”,该句型中的形容词不表示人的内在品质,通常表示客观情况,即表示 to-infinitive的情况特征。如:
It’s important for us to keep the water clean.对我们而言,保持水清洁是重要的。
It was impossible for him to finish the homework in an hour. 对他来说,在一小时内完成家庭作业是不可能的。
[比较鉴别]
在实际运用过程中,是用of...to-infinitive还是用for...to-infinitive呢?请看:
1. of...to-infinitive 做主语时,只能接形容词作表语;for...to-infinitive在句中做主语时,其表语可以是形容词也可以是名词。如:
It was too foolish of you to do so. 你那么做真是太愚蠢了。
It is impossible for you to get there in such a short time. 你在这么短的时间内到达那儿是不可能的。
It will be a mistake for you to miss the chance.你错过那个机会将是个错误。
2. 在of...to-infinitive结构中,of后面的名词或代词与前面的形容词(kind, clever,foolish,selfish,polite,right,wrong,careful等)有逻辑上的主表关系;而for...to-infinitive结构中,for后面的名词或代词与前面的形容词(easy,hard,difficult,possible,necessary,important,heavy等)没有逻辑上的主表关系。如:
It is kind of you to lend me so much money. 你心肠真好,借给我这么多钱。
It is hard for you to translate the sentence into English. 把这个句子翻译成英语对你来说是有困难的。
3. 有些形容词(如nice, right, wrong, good, wise等)既可用于of...to-infinitive结构,也可用于for...to-infinitive结构。但两者强调的重点不同,意义也有区别。试比较:
It is wise of them to turn down the suggestion. 他们很明智,拒绝了这个建议。(强调“他们”是明智的)
It is wise for them to turn down the suggestion. 他们拒绝这个建议是明智的。(强调“拒绝建议”这一行为是明智的)
【链接中考】
1. It’s very nice ______ you to give me the chance.(2005年天津)
A. ofB. for
C. toD. at
解析:you与nice可构成逻辑上的主表关系,即You’re nice,且符合“of... to-infinitive”句型表示人的内在品质这一条件,所以答案选A。
2. It’s important ______ the piano well.(2006年天津)
A. of him to play
B. for him to play
C. of him playing
D. for him playing
解析:him与important不可构成逻辑上的主表关系,且符合“for… to-infinitive”句型结构,用以表示客观情况,所以答案选B.
【练一练】
()1. It is very kind ______ you to help me water the flowers.
A. ofB. toC. forD. on
()2. It’s important ______ you to learn English very well.
A. ofB. onC. toD. for
()3. It’s stupid of you ______ think you are always right.
A. forB. inC. toD. by
()4. It is very difficult ______ the girl ______ out the problem.
A. to;work B. of;to work
C. for;to work D. with;working
()5. ______ is generous of David to lend me his bike.
A. ThereB. ItC. HereD. He
Keys: ADCCB