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课件网) B2U1 Food for Thought Understanding idea A Child of Two Cuisines Lead-in How many Chinese cuisines are mentioned in the video Eight Categories of Chinese Cuisines 2. Have you ever tried any of the food in the video What did you think of it Fast-reading Read the passage quickly and determine whether the following sentences are true, false or not mentioned. Mum comes from Sichuan Province, and often cooks spicy dishes. Dad has been used to eating almost all Chinese dishes. Dad is a person who is particular about food. Now I’m fond of all Chinese dishes, even stinky tofu. True False False Not mentioned be able to后接动词原形，表示某人做某事的能力，可用于大多数时态。用于过去时态时，还可以表示“某人过去或当时成功地做了某事”。例如： I will be able to speak Japanese in another few months. 再过几个月，我就能讲日语了。 They were able to escape from the building when the fire broke out. 火灾发生时，他们设法从那栋建筑里逃了出去。 1. be able to be able to表示“能力”时，和can的用法相似。但也有区别： be able to有多种时态，如: was / were able to, will / shall be able to, have / has been able to等, 而can只有两种时态，即can和could。 be able to强调通过努力而获得的能力，而can则强调自身已具有的能力。如： She can sing the song in English. 她能用英语唱这首歌。 He will be able to sing this song in English in a few minutes, too. 几小时之后，他也能用英语唱这首歌。 【be able to 与can的辨析】 be able to 强调一种结果，而can只强调一种可能。如: Luckily, he was able to escape from the big fire in the end. 幸运的是，他终于逃出了大火。 If he got here a few hours earlier, I could save him. 要是他早几小时来，我还能救他。 be able to的否定形式是在be后面直接加not，即be not able to，如： The kid is not able to write. 这孩子不会写字。 But we may not be able to do this for every scenario. 但是我们不能每一种场景下都这么做。 dare作情态动词时，主要用于否定句、疑问句和条件从句中，一般不用在肯定句中。 如：How dare you say I'm unfair 你怎么敢说我不公平？ 情态动词dare可以有过去式dared，但也可以直接用dare表示过去式，或后接动词完成式，如： Mother dare(d) not tell father she'd given away his old jacket. 母亲不敢告诉父亲她把他的旧上衣送人了。 2. dare ＆ need dare用作实义动词，有时态、人称和数的变化。所不同的是，作实义动词时，在肯定句中dare后面通常接带to的不定式；在否定句和疑问句中，dare后可接带to或不带to的不定式。如： a. I wonder how he dares (to) say such things. 我纳闷他怎么竟敢说出这样的话来。 b. He does not dare (to) answer. 他不敢回答。 need表示“需要”或“必须”，作情态动词时，用于否定句和疑问句中，在肯定句中一般用must, have to, ought to或should代替。如： You needn’t come so early. 你不用这么早来。 dare & need How dare you say I’m unfair 你怎么敢说我不公平？ You needn’t come so early. 你不用这么早来。 I dare to swim across this river. 我敢游过河去。 He does not dare (to) answer. 他不敢回答。 have to have to 的含义与 must 相似，两者往往可以互换使用，但 have to 有各种时态，且强调客观需要，意为“不得不”。 I have to leave be ... ...
