Unit 10 Section A(Grammar Focus～4c) ——单元语法精讲精练-【四清导航•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　Section A(Grammar Focus～4c) ——单元语法精讲精练 英语 九年级下册 人教版 四清导航 be supposed to 意为“应该做某事”，其中to是动词不定式符号，其后要接动词原形。be动词有人称和时态的变化，其否定形式要在be动词后加not。当be supposed to 的主语是“人”时，意为“应该……”，用来表示劝告、建议、义务、责任等，相当于情态动词should。当be supposed to的主语是“物”时，表示“本应；本该”，用于表示“某事本应该发生而没有发生”。 Everyone is supposed to wear a seat belt in a car.每个人在坐车时都应该系安全带。 The train was supposed to arrive half an hour ago.火车本该在半小时之前到达。 2 be expected to意为“被期望……”，表示一种可能性。其中to是动词不定式符号，其后要接动词原形。be动词有人称和时态的变化，其否定形式要在be动词后加not。 She is expected to be a good doctor.她有望成为一名好医生。 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do之间是逻辑上的主谓关系。该句型中的for也可改为of，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，impossible，possible等。 It's hard for me to answer your question.回答你的问题对我来说很难。 2．若形容词是描述不定式行为者的性格或品质，如kind，good，nice，right，wrong，clever，careless，polite，foolish等，用of sb.。 It's very kind of you to help me with my English.你帮助我学习英语真是太好了。 一、按要求完成下列句子。 1．Parents should tell their children some good manners.(改为同义句) Parents tell their children some good manners. 2．To hand in our homework on time is necessary.(改为同义句) in our homework on time. 3．You aren't supposed to look at your cellphone while walking down the street.(改为同义句) You at your cellphone while walking down the street. 4．Students are supposed to greet the teachers when classes begin.(对画线部分提问) students when classes begin? are supposed to It's necessary to hand shouldn't look What are supposed to do 5 二、根据汉语意思完成下列句子。 5．你应该找份兼职工作多赚点钱。 You find a part­time job to make more money. 6．期望你更努力地学习。 You study harder. 7．对我来说，学好化学很困难。 hard me chemistry well. 8．犯这样的错误你真是太粗心了。 It's too careless you such mistakes. 9．人们不应该在公交车