1、单元语法聚焦(十),supposed的用法 1be supposed to do意为“应该；被期望”。主语是物时，意为“本应；本该”，指“某事本应该发生而没有发生”。 to是不定式符号，后接动词原形。be supposed to常用来表示劝告、建议、告知义务或责任等，相当于should。eg： You are supposed to shake hands when you meet someone for the first time in China. 在中国与他人第一次见面时，你应该握手。 The plane was supposed to arrive at 6：00. 飞机本应该6点
2、钟到。,2在口语中，常用否定结构“be not supposed to do”，意为“不允许/不应该做某事”，相当于shouldnt。eg： You are not supposed to smoke on the bus. 你不应该在公共汽车上吸烟。 3be supposed to have done sth.意为“本应做某事而实际上没做”。eg： You are supposed to have finished the work. 你们本应完成这项工作的。,4supposethat从句，当变为否定句时，否定词应该前移。类似的词还有think，believe等。eg： I dont sup
3、pose he will tell you about it.我认为他不会告诉你这件事。 5suppose还有“猜想”的意思，suppose sb to do sth意为“猜想某人去做某事”。eg： I supposed him to stay at home.我猜他待在家。,be expected to do的用法 be expected to do表示一种可能性，意为“被期许(预期)会做某事”。eg： He is expected to do well in the test. 他有望在考试中取得好成绩。 She is expected to arrive at noon. 预期她将会在正
4、午抵达。,“It isadj.to do sth.”的用法 it作形式主语，真正的主语是动词不定式。eg： It was wrong for you not to help her. 你不帮助她是错误的。,一、单项选择。 ( )1.You_arrive at 6：00 am.，but you arrived at 7：00 am.today.Dont be late next time. Asupposed to Bwere supposed to Care supposed Dare supposed to,B,( )2.This disabled girl needs our help.W
5、e are_to do something for her. Astopped Binvited Csupposed Dhelped ( )3.Students are_to speak loudly in the reading room. Atold Bsupposed Cnot supposed Dallowed,C,C,( )4.When_you supposed_the meeting yesterday? Awere；had Bwas；had Cwere；to have Dwere；having,C,( )5.Let me help you carry the box，Granny
6、. Thank you，Li Lei.Its very nice_you_me. Aof；to help Bfor；to help Cof；helping Dfor；helping,A,二、根据汉语意思完成句子。 6你们应该穿校服。 You _ _ _ _ school uniforms. 7约翰应该会出席今晚的宴会。 John _ _ _ attend the party tonight. 8每天喝足够的水是重要的。 _ _ _ _ _ enough water every day.,are supposed to wear,is supposed/expected to,It is important to drink,9她有望成为一名好医生。 She _ _ _ _ a good doctor. 10他应该一个小时前就到那了。 He is _ _ _ _ there an hour ago.,is expected to be,supposed to have got,
