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课件网) Unit 2 Keeping Healthy Topic 1 You should brush your teeth twice a day. 1. 学习如何询问他人身体状况、怎样描述病情及提建议的表达； 2. 掌握情态动词should/shouldn't/had better, had better not 的用法； Grammar 1. should的基本用法： ①作为情态动词，“应当，应该”，表示劝告、提出建议。没有人称和数的变化，后接动词原形,表现在或将来的义务或责任。 ②肯定：主语+should+动词原形+其他 你应该...... 否定：主语+should+not+动词原形+其他 你不应该...... Eg: You should be polite to your teachers. You shouldn't waste any time. 拓展：should 表推测，意为“想必一定；照说应该; 估计” Eg: They should be home by now. You should see a dentist. 你应该去看牙医。 see a dentist/doctor 表示提建议，还可以用shall, shall 通常用于第一人称。 ①请求给予建议 How shall I make cakes ②主动提供帮助 Shall I help you ③提建议 Shall we go swimming 2. had better的用法 had better “最好，应该”, 后接动词原形, 没有人称和数的变化；表示对别人的劝告、建议或表示一种愿望。should比had better语气要强一点 否定：主语+had better not do sth. 疑问：Had+主语+better+do sth. ？ Eg: We had better go before it rains. I'd better not disturb him. What had we better do You'd better take some medicine. 你最好服些药 Eg: 你最好和你爸爸一起去那儿。 You'd better go there with your father. 你最好不要在阳光下读书。 You'd better not read in the sun. 3. You don't look well. ①look是系动词，后跟形容词well作表语 拓展：类似的连系动词: smell, taste, look, feel, be, seem, keep, sound, turn, get, become(表示变化)等 Eg: The sky is becomimg darker and darker. The music sounds sweet. ②well形容词，“身体好的”，“健康的”相当于fine, healthy Eg: Take this medicine and you will get well soon. 4. —What’s wrong with you —I have a toothache. ①What’s wrong with you 一般用于询问对方的病情或其他不适状况;也可用来询问某人生气或不高兴的原因。 Eg: What's the matter/trouble with her ②have a +症状 得了......病 have the flu have a cold/fever/cough/toothache/headache/backache/ stomachache 感冒/发烧/咳嗽/牙疼/头痛/背痛/胃痛 have a sore throat 咽喉痛 have sore eyes 眼痛 have“有；吃” have a big dinner =What’s the matter/trouble with... =Is there anything wrong with... 5. I am sorry to hear that. I'm sorry +to do sth. 或that+从句，是对所做错事的一种歉意或听到不好消息及令人不愉快的事情时的一种关心、遗憾、惋惜或感到难过的委婉表达。 Eg: I'm sorry to be late. I'm sorry (that) you are ill. 拓展：如果听到的是好消息，用I am so gald to hear that. 6. Betty suggests that Kangkang should see a dentist. ① “suggest +名词” Eg: He suggested a walk. ② “suggest doing sth.” Eg: I suggest putting the meeting off. ③ “suggest (that) +从句” Eg: He suggested (that) we (should) come another day. 7. How long have you been like this have been 现在完成时态； 现在完成时态表示过去发生或已经完成的动作对现在造成的影响或结果；也可以用来表示发生在过去某一时刻的，持续到现在的动作。 构成：主语+have/has+动词的过去分词 Eg: 我已经学英语一年多了。 I have learned English for over one year. Practice 1. I have a ... ...
