Unit 2 Strong mind Grammar：情态动词need和had better（同步课件）英语沪教版五四学制2024七年级上册

语法单元 Unit2 Strong mind 教师______ 学校______ 情态动词need 何为 情态动词？ 情态 + 动词 用于 【动词】 前，表达 情感、语气 状态 Tom goes to school today. Tom must go to school today. 1 2 何为 情态动词？ 情态动词本身有意义，表示说话人的某种语气、态度或看法。情态动词不能单独作谓语，要同行为动词或连系动词一起构成谓语。 情态 + 动词 用于 【动词】 前，表达 情感、语气 状态 情态动词 need 情态动词 答语 实义动词 Yes. Would you like to go with us? 是的。你愿意和我们一起去吗？ I hear that we’ll go to the nursing home this weekend. Is it true? 我听说周末去敬老院。真的吗？ You needn't worry. We’ll have a discussion after school. 你不必担心。放学后我们讨论一下。 I’d like to. But how can we go there? 好啊。我们如何去呢？ need 作情态动词，没有人称或数的变化， 后接动词原形。 No，we needn’t. We’ll have lunch there. 不必。我们中午在那里吃饭。 Need we take something to eat there? 我们需要带些吃的东西去吗？ Yes，we must. You know, the New Year is coming. 是的。因为新年临近了。 Need we buy some presents for the elderly? 我们需要给老人买些礼物吗？ need 多用于否定句和疑问句中。由 need 引出的一般疑问句，肯定回答常用 must；否定答语常用 needn’t 或 don’t have to。 OK. I’ll tell you what you need to do after the discussion. 好的。讨论后我会告诉你需要做什么。 If you need anything for me to do, just tell me. 如果需要我做什么，尽管告诉我。 need 用作实义动词，后面接名词或代词，或 者带 to 的不定式。 典型例题 1,After lunch, I always need a good rest. 解析：need sth. 需要某物； need to do sth. need do sth. 行为动词 用法，需要做某事 情态动词用法，意思也是需要做某事 ( ) 2.Tom to go far if he some help .Our house is next to his. A doesn`t need; need B needn`t ; deeds C doesn`t need; needs D needn`t; need C 典型例题 ( ) 3.Tom go far if he some help .Our house is next to his. A doesn`t need; need B needn`t ; needs C doesn`t need; needs D needn`t; need B 4 I don`t need to go to school by bike any more. = I don`t need to to school any more ride 典型例题 （ ）5 You to the meeting this afternoon if you have something important to do . A needn`t to come B don`t need come C don`t need coming D needn`t come D 解析：A 用法，need 后多了to; B 用法need 后少了to ； C need doing 意思是 。 情态动词 行为动词 某事需要被做 情态动词had better We had better do morning exercise to keep healthy. You had better switch off the lights when you leave. You had better be careful when you cross the street. You had better not leave your money on your desk . Read ＆ summarize We had better do morning exercise to keep healthy. You had better switch off the lights when you leave. You had better be careful when you cross the street. You had better not leave your money on your desk. We can use had better to give strong advice in a particular situation. had better 应该；最好 had better=’d better had better not = ’d better not 最好不（做某事） Read ＆ summarize We had better do morning exercise to keep healthy. You had better switch off the lights when you leave. You had better be careful when you cross thee street. You had better not leave your money on your desk . We use had better with (the base form/the -ing form/the -ed form ) of a verb. had better + do(动词原形) had better not + do(动词原形) 1. 你最好在下雨前回家。 ___________________ before the rain starts. 2. 现在你最好别打棒球了。 _____________________ baseball now. 3. We had better go skiing next winter holiday. (改为否定句) We ________ ________ ________ go skiing next winter holiday. You'd better go home You had better not play 典型例题 had better not see you again $$