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Unit 6 Sunshine for all 單元語(yǔ)法專(zhuān)練 “Itis+adj.(+ofsb)+todosth”句型 此句型意為“某人做某事真是/太……了”,其中It是形式主語(yǔ),沒(méi)有具體的意義,真正的主語(yǔ)是后面的動(dòng)詞不定式短語(yǔ)。該句型中的形容詞描述的是人的特征、品質(zhì)等。常用于此句型的形容詞有g(shù)ood,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.你在星期天幫我做家務(wù)真的太好了。 注意: 1.在“It is+adj.(+of sb)+to do sth”句型中,of后的賓語(yǔ)與動(dòng)詞不定式之間存在邏輯上的主謂關(guān)系,一般都可以轉(zhuǎn)換成一個(gè)以of后的賓語(yǔ)為主語(yǔ)的句子。例如: It is foolish of them to do so. →They are foolish to do so.他們這樣做真是愚蠢。 2.該句型在表示不定式的否定意義時(shí),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.你對(duì)老人不禮貌真是粗魯。 “Itis+adj.(+forsb)+todosth”句型 此句型意為“對(duì)某人來(lái)說(shuō)做某事是……的”,其中It是形式主語(yǔ),沒(méi)有具體的意義,真正的主語(yǔ)是后面的動(dòng)詞不定式短語(yǔ),介詞for后面的人作動(dòng)詞不定式短語(yǔ)的邏輯主語(yǔ)。該句型中的形容詞說(shuō)明要做的事情本身的特點(diǎn),如可能性、必然性或難易程度等。常用于此句型的形容詞有important,necessary,possible,impossible,dangerous,safe,easy,hard,difficult,meaningful等。例如: It’s necessary for him to do so.他有必要這么做。 It’s impossible for the children to finish the homework in such a short time.孩子們不可能在這么短的時(shí)間內(nèi)完成作業(yè)。 Ⅰ.單項(xiàng)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.根據(jù)句意用介詞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. 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.同義句轉(zhuǎn)換,每空一詞 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.