C Read a student's blog entry about helping children with ASD. Rewrite the underlined sentences using “it is + adjective + (for/of ... +) to - infinitive”.
Last weekend, I spent an afternoon with children with ASD. People with ASD usually have difficulty with language and social skills. $^{(1)}$
Communicating with other people is often hard for them.
This volunteer event took place in the art room of a community centre. Volunteers, children and their grandparents all took part. $^{(2)}$
Being part of such a caring group
of people was great.
I worked with a boy named Max and his grandma, Mrs Wang. We were supposed to create a painting together. At first, Max didn’t talk much. $^{(3)}$
Knowing how to start our paintin
g was di
ffi
cult f
or me.
But soon, Max painted a tree. Then, he offered me a brush, and I did the same. When he noticed my tree, he gave me a big smile. $^{(
4)}$
Conn
ecting with him like that
wa
s wonderful! Finally, we painted a whole forest together!
After the event, Mrs Wang shook my hand and said, “$^{(5)}$
You are so thoughtful to volunteer today.” But I thought, “$^{(6)}$
Max is kind enough to spend his afternoon with me!” It was a great event and a great afternoon.
(1)
It is often hard for them to communicate with other people.
(2)
It was great to be part of such a caring group of people.
(3)
It was difficult for me to know how to start our painting.
(4)
It was wonderful to connect with him like that!
(5)
It is thoughtful of you to volunteer today.
(6)
It is kind of Max to spend his afternoon with me!
解析：
【分析】
首先要明确“it is +形容词+(for/of...+)to-infinitive”这个句型的用法：当形容词描述事物的性质（如hard, difficult, great等）时，用“it is +形容词+for sb.+to do”结构；当形容词描述人的品质（如thoughtful, kind等）时，用“it is +形容词+of sb.+to do”结构。解题时，先找出原句中的形容词，判断用for还是of，再把原句中的动名词短语转换成不定式短语，用it作形式主语，将不定式短语后置。
1. 原句形容词是hard，描述“和他人交流”这件事的难度，所以用for them，把Communicating换成to communicate；
2. 原句形容词是great，描述“加入这个有爱的群体”这件事，直接把Being part of换成to be part of，it作形式主语；
3. 原句形容词是difficult，描述“知道如何开始画画”这件事，用for me，把Knowing换成to know；
4. 原句形容词是wonderful，描述“和他那样交流”这件事，把Connecting换成to connect；
5. 原句形容词是thoughtful，描述人的品质（你很体贴），所以用of you，把You are so thoughtful换成It is thoughtful of you；
6. 原句形容词是kind，描述Max的品质，用of Max，把Max is kind enough换成It is kind of Max。
【解析】
(1) 原句动名词短语作主语，转换为it作形式主语，形容词hard表事物性质，用for sb.结构，将Communicating改为to communicate，得到：It is often hard for them to communicate with other people.
(2) 原句动名词短语作主语，转换为it作形式主语，形容词great表事物性质，将Being part of改为to be part of，得到：It was great to be part of such a caring group of people.
(3) 原句动名词短语作主语，转换为it作形式主语，形容词difficult表事物性质，用for sb.结构，将Knowing改为to know，得到：It was difficult for me to know how to start our painting.
(4) 原句动名词短语作主语，转换为it作形式主语，形容词wonderful表事物性质，将Connecting改为to connect，得到：It was wonderful to connect with him like that!
(5) 原句形容词thoughtful表人的品质，用of sb.结构，将You are so thoughtful转换为It is thoughtful of you，得到：It is thoughtful of you to volunteer today.
(6) 原句形容词kind表人的品质，用of sb.结构，将Max is kind enough转换为It is kind of Max，得到：It is kind of Max to spend his afternoon with me!
【答案】
(1) It is often hard for them to communicate with other people.
(2) It was great to be part of such a caring group of people.
(3) It was difficult for me to know how to start our painting.
(4) It was wonderful to connect with him like that!
(5) It is thoughtful of you to volunteer today.
(6) It is kind of Max to spend his afternoon with me!
【知识点】
it作形式主语句型；不定式用法；形容词与for/of搭配
【点评】
本题主要考查“it is +形容词+(for/of...+)to-infinitive”句型的转换，需要准确区分形容词描述的是事物性质还是人的品质，从而正确选用for或of，同时掌握动名词短语与不定式短语在该句型中的转换，帮助学生熟练运用这个常用的主语从句结构。
【难度系数】
0.6
