A. It + be + adj. + of sb to do sth.

It + be + adj. + for sb. to do sth.

Use the words in brackets to rewrite the sentences:

• 1. Jim took the homeless cat to the Animal’s Center.

• 2. Sam ate up the whole cake himself.(selfish)

(kind)

It’s kind of Jim to take the homeless cat to the Animal’s Center.

It’s selfish of Sam to eat up the whole cake himself.

It is + adj. + of sb.+ (not) to do sth. • 3. Mary told her teacher that a mistake

in her paper hadn’t been found out.

• 4. Tom seldom changes his mind.

(honest)It’s honest of Mary to tell her teacher that a mistake in her paper hadn’t been found out.

It’s stubborn of Tom not to change his mind.

(stubborn)

We use “It is +adj. + of sb. + to do sth.” to express what we think of sb.

It’s kind of Jim to take the homeless cat to the Animal’s Center.

It’s selfish of Sam to eat up the whole cake himself.

It’s honest of Mary to tell her teacher that a mistake in her paper hadn’t been found out.

It’s stubborn of Tom not to change his mind.

句型 句型特点 常用形容词 可替换句型

It +be + adj. + of sb. to do sth.

这里形容词是对人的品质、特征等的修饰、说明

good, kind, nice, clever, wise,foolish, silly, right, wrong, careful, careless,selfish, generous,politethoughtful

sb. is +adj. to do sth.

.

句型 句型特点 常用形容词

可替换句型

It +be + adj. + for sb. to do sth.

这里形容词是对动词不定式to do 这件事的好坏等性质的修饰、说明

hard,good, difficult, easy, important, interesting, necessary, possible, impossible etc.

doing/ to do sth. is + adj.

• It’s very silly of you to make such a mistake.

• It’s creative of her to think of the idea.

• It’s impossible for you to finish the task today.

• It’s not easy for you to be a top student in such a short time.

You are silly to mske such a mistake.

Being/To be a top student in such a short time is

not easy for you.

She is creative to think of the idea.

Finishing/To finish the task today is impossible.

1. It is kind of you to help me with my work.

___________________________

2. It is necessary for you to bring an umbrella with you.

________________________

你在工作上帮助我真是太好了。

对你来说带上雨伞是必要的。

I. 翻译

Ⅱ. 选择1. It is not good ____ (of, for) you to read

in the sun.

2. It is silly ____ (of, for) Simon to make

such a mess.

3. It is necessary ____ (of, for ) them to

support and help each other during the

event.

for

of

for

Ⅲ. 同义句改写1. My sister is very kind. She likes to

take care of others.

It is very _____ ____ my sister _____

____ care of others.

kind of to

take

2. They are very generous to give each of us a gift.It is ________ ______ them _______ _____each of us a gift.

generous of to give

3. Donating money for the elderly is very

meaningful for us.

It is __________ ____ us______

______money for the elderly.

4. It is very important for us to pay

attention to every detail.

_______ attention to every detail is very

important for us.

meaningful for todonate

Paying

B. be + adj. + enough to do sth.

Combine the two sentences into one:

• Simon is kind. Simon helps his teachers a lot.

It is kind of Simon to help his teachers a lot.

Simon is so kind that he helps his teachers a lot.

Simon is kind enough to help his teachers

a lot.

Subject( 主语 )+be +adj.+enough + to do sth.

We use this pattern to describe a person’s personality and ability.

• Andy is energetic enough to be a leader.

• Amy is outgoing enough to make friends easily.

• Peter is creative enough to be a writer.

• Simon is generous enough to buy gifts for all of us.

1. He was so lucky that he got Jay Zhou’s signature.

He is ______ ________ _____ ______ Jay Zhou’s signature.

It is _______ ____ him _____ ______ Jay Zhou’s signature.

2. He is too young to join the army.

He is ______ _______ ________ to join the army.

He is ______ _______ ________ he can’t join the army.

lucky enough to get

lucky of to get

not old enough

so young that

3. Tina is so kind that she always helps her friends in need.

Tina is ______ ________ ____ _______ her friends in need.

It is _______ ____ Tina _____ _______ her friends in need.

4. Peter is too weak to carry that heavy box.

Peter is _____ weak ______ he can’t carry that heavy box.

Peter is _____ _______ _______ ____ carry that heavy box.

kind enough to help

kind of to help

so that

not strong enough to

5. My grandmother is practical enough to make all kinds of paper-cuttings.

My grandmother is ______ _________ _______ she can make all kinds of paper-cuttings.

It is __________ ____ my grandmother _____ ________ all kinds of paper-cuttings.

so practicalthat

practical of tomake

6. Andy is too short to reach the apples.

Andy is ___ _____ _______ to reach the

apples.

Andy is ___ ______ ____ he______

reach the apples.

not tall enough

so short that can’t

7. It’s very kind of you to tell me this

news.

You are _____ ______ to tell me this

news.

kind enough

8. David is curious. He asks his parents

many questions every day.

David is ______ ______ ____

___ his parents many questions

every day.

9. Kitty is clever enough to make all

kinds of kites.

Kitty is ___ ______ _____ she

____ ____ all kinds of kites.

curious enough to

ask

so clever that

can make

1. Sandy is enough patient to wait for us for two hours.

2. It is good of you to take this medicine.

3. The stars are not near enough to see them.

______________

patient enough__for

_____

去 them