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1、should,用 should 可以表示“劝说”或“督促”, should 语气比较肯定一些, 说话人的主观信心要强烈一些。 You should mind your own business. You should not put so many books on the shelf.,had better (常缩写为d better) ,是一固定词组, 表示“最好”, 用于表示对别人的劝告、建议或表示一种愿望。 had better 后面加动词原形,即 had better do sth.。不论主语是第几人称, 句子无论是何种时态,had better 形式不变。,had better 的

2、否定形式为had better not do sth. 表示“最好不要做”。 Youd better not miss the last bus. Youd better not play on the road. Its dangerous.,1. Albert is too fat. She _ not eat too much sweet. had better B. ought to C. had to D. should to 2. You _ mind your own business. A. could B. can C. should D. shall 3. You look

3、 tired. Youd better _ to bed earlier. A. to go B. go C. went D. going,Exercises,A,C,B,4. Susan _ better not be lazy, _ she? had, had B. hadnt, had C. hadnt, hadnt D. had, hadnt 5. You had better _ football near the street. not to play B. dont play C. not play D. not to play 6. Kathy is talking to her classmate in the class. She _ to others in the class. A. should is talking B. should be talking

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