Unit 10 第三课时 (Grammar Focus 4c)——单元同步语法精讲精练-【原创新课堂•河南专版】2022-2023学年九年级英语下册作业课件(人教版)

第三课时 (Grammar Focus­4c)—单元同步语法精讲精练 英语 九年级下册 人教版 原创新课堂 ►suppose动词，意为“想；认为；猜测；猜想”。 ①suppose＋(that)从句 eg：I suppose that he is a doctor.我猜想他是位医生。 【注意】变否定句时，suppose同think，believe一样，否定要前移。 ②suppose sb. to do sth.意为“猜想某人做某事”。 eg：I supposed him to stay at home.我猜他待在家里。 ③在表示同意或不同意别人的观点时，常用“I suppose so./I don't suppose so.” eg：—Will he be back this weekend？他这周会回来吗？ —Yes，I suppose so.是的，我想他会回来。 2 ►be supposed to do sth.意为“应该/应当做某事”。 ①be supposed to...中的to为动词不定式符号，其后跟动词原形。当be supposed to...的主语是“人”时，意为“应该……；被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。 eg：You are supposed to ask the teacher if you want to leave the classroom.如果你想离开教室，你应该问问老师。 You were supposed to be here an hour ago！你本该在一个小时之前就在这儿！ ②当be supposed to...的主语是“物”时，意为“本应；本该”，用于表示“某事本应该发生而没有发生”。 eg：The train was supposed to arrive ten minutes ago.火车本应在十分钟之前到达。 3 ③be supposed to还可意为“被认为是；被相信是”。 eg：I haven't seen it myself，but it's supposed to be a great movie.这部电影我没看过，不过人们普遍认为是很不错的电影。 ④be supposed to...的否定结构为be not supposed to...，常用于口语，意为“不被许可；不应当” 。 eg：You are not supposed to smoke on the bus.你不应该在公共汽车上吸烟。 ⑤be supposed to＋have done意为“本应做某事而没做”。 eg：You are supposed to have finished the work so far.到目前为止你们本应完成此项工作。 ►It's ＋adj.(＋for sb.)＋(not) to do sth.意为“做某事是……的”，其中it是形式主语，真正的主语是后面的(not) to do sth.，其中sb.与to之间是逻辑上的主谓关系。该句型中的for也可改为of，究竟用of sb. 还是用for sb.，取决于前面的形容词。 ①若形容词仅仅是描述事物，用for sb.，这类形容词有difficult，easy，hard，important，dangerous，(im)possible等。 eg：It is possible for him to pass the exam.对于他来说通过考试是可能的。 ②若形容词是描述不定式行为者的性格、品质的，如：kind，good，nice，right，wrong，clever，careless，polite，foolish等，用of sb.。 eg：It's kind of you to help me.你帮我真是太好了。 一、根据要求完成下列句子。每空一词。 1．Parents should let their children know some good manners.(改为同义句) Parents ______ ___________ _____ let their children know some good manners. 2．She is supposed to dress up for the evening party.(改为否定句) She _________ ___________ to dress up for the evening party. 3．Eating healthily is very important for us.(改为同义句) ______ very important _______ ______ ______ ________ healthi