Unit 6 Sunshine for all
单元语法专练
“Itis+adj.(+ofsb)+todosth”句型
此句型意为“某人做某事真是/太……了”,其中It是形式主语,没有具体的意义,真正的主语是后面的动词不定式短语。该句型中的形容词描述的是人的特征、品质等。常用于此句型的形容词有good,kind,clever,right,nice,rude,wise,wrong,honest,generous,careful,careless,silly等。例如:
It’s really very kind of you to help me with the housework on Sundays.你在星期天帮我做家务真的太好了。
注意:
1.在“It is+adj.(+of sb)+to do sth”句型中,of后的宾语与动词不定式之间存在逻辑上的主谓关系,一般都可以转换成一个以of后的宾语为主语的句子。例如:
It is foolish of them to do so.
→They are foolish to do so.他们这样做真是愚蠢。
2.该句型在表示不定式的否定意义时,需要在不定式前加not,即“It is+adj.(+of sb)+not to do sth”。例如:
It’s rude of you not to be polite to the old.你对老人不礼貌真是粗鲁。
“Itis+adj.(+forsb)+todosth”句型
此句型意为“对某人来说做某事是……的”,其中It是形式主语,没有具体的意义,真正的主语是后面的动词不定式短语,介词for后面的人作动词不定式短语的逻辑主语。该句型中的形容词说明要做的事情本身的特点,如可能性、必然性或难易程度等。常用于此句型的形容词有important,necessary,possible,impossible,dangerous,safe,easy,hard,difficult,meaningful等。例如:
It’s necessary for him to do so.他有必要这么做。
It’s impossible for the children to finish the homework in such a short time.孩子们不可能在这么短的时间内完成作业。
3
Ⅰ.单项填空
(A)1.It was carelessJack to makemistakes.
A.of;a number of B.of;a plenty of
C.for;an amount of D.for;a lot of
(C)2.It’s necessary for us to our parents when we have problems.
A.talk B.talking
C.to talk D.to talking
(D)3.It’s dangerous the children to play on the street.
A.of B.by
C.with D.for
(D)4.It’s meaningful money the children in need.
A.to raise;support
B.raise;to support
C.raise;support
D.to raise;to support
(A)5.It is easy for a stranger in a big city.
A.to get lost B.got lost
C.get lost D.to getting lost
Ⅱ.根据句意用介词for或of填空
1.It is necessary for us students to improve the listening ability.
2.It was kind of you to give me your seat on the bus.
3.It is dangerous for children to swim in the river alone.
3
4.It is not wise of the mother to give her son so much money.
5.It is really hard for them to climb such a high mountain.
Ⅲ.同义句转换,每空一词
1.To keep our classroom clean is very important.
It’s very important to keep our classroom clean.
2.She is very generous to give each of us a gift.
It’s very generous of her to give each of us a gift.
3.Donating money to the elderly is meaningful for us.
It’s meaningful for us to donate money to the elderly.
4.Suzy is very kind and she likes to take care of others.
It’s very kind of Suzy to take care of others.
5.To think before you speak is always wise.
It’s always wise to think before you speak.
3
微信/支付宝扫码支付