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f time. 5. 1) It + be + for sb. + to do sth. 做某事對(duì)于某人來說怎么樣 如果不定式的邏輯主語是由 for引起,主句中的形容詞通常是表示重要性,緊迫性,頻繁程度,難易度等情況的形容詞,常見的有:important, safe, mon, difficult等。 做 這項(xiàng) 工作 對(duì) 我 來說 很 難 。 It’s difficult for me to do this work. 5. 2) It + be + of sb. + to do 人做某事某人怎么樣 如果不定式的邏輯主語是由 of引起,主句中的形容詞必須是能表示主語特征的形容詞。常見的有: bad。 brave。 careless。 clever。 foolish 等,這個(gè)句型可以改寫為: sb. + be + adj. + to do. 你這么說太好了。 It’s kind of you to say so. =You are kind to say so. C Write a sentence using it and a toinfinitive under each picture below. It’s important to stay calm in a fire. 2. forest/ start/ fire/ dangerous It’s dangerous to start fire in the forest. C Write a sentence using it and a toinfinitive under each picture below. 3. take/ umbrella/ good idea It’s a good idea to take an umbrella. 4. have/ park/ piic/ nice It’s nice to have a piic in a park. D Put the words in brackets in the correct order to plete the conversations. : Look at the sky. There are many dark clouds, and the wind is blowing strongly. S2: (it/ seems/a typhoon/ that/ ing/ is) 2. S1: Is your father going to Beijing today? S2: No. (it/ appears/ has been cancelled/ the flight/ that) It seems tha