Unit 3 Diverse Cultures Section Ⅱ Discovering Useful Structures（Word教参）-【优化指导】2022-2023学年新教材高中英语必修第三册（人教版2019）

Section Ⅱ　Discovering Useful Structures 省略结构 [对应学生用书P74] [观察] 1．A: Oh，I just love nachos! Mexican corn chips covered with cheese. B：Me，too. 2．A: So it's the food of many different cultures，all in one dish? B：Exactly. 3．A real mix of cultures here! 4．Can't wait! [归纳] 将上述的每个省略句补充完整。 1．I love nachos，too! 2．Exactly，it's the food of many different cultures all in one dish. 3．There is a real mix of cultures here! 4．I can't wait to go there! [对应学生用书P74] 为了避免重复，将句子中的一个或几个成分省去，这种语法现象叫省略。省略是避免重复、突出新信息并使上下文紧密连接的一种语法手段。英语中的省略结构有下列几种情况。 简单句中的省略 ①省略主语 ②省略谓语或谓语的一部分 ③省略宾语 ④省略主语和谓语，或主语和谓语的一部分 ⑤不定式to后省略动词 并列句中的省略 复合句中的省略 ①宾语从句中的省略 ②定语从句中的省略 ③状语从句中的省略 1．并列句和复合句中某些相同成分的省略。 This beeper works well，but that one doesn't (work well). 这个寻呼机工作正常，但那个不行。 Some books are to be tasted，others (are) to be swallowed，and some few (are) to be chewed and digested. 有些书浅尝即可，有些书浏览即可，而有少量的书则需要咀嚼消化。 2．在when，while，if，as if，though(或although)，as，until，once，whether，unless，where等连词连接的状语从句中，常省略跟主句相同的主语和be动词。 When (water is) pure，water is a colorless liquid. 水纯净时，是无色的液体。 When (I am) in trouble，I always turn to her for help. 我困难时总是找她帮助。 Correct errors，if (there are) any. 如果有错误，就应当改正。 Wood gives much smoke while (wood is) burning. 木头燃烧时放出很多烟。 The letter is to be left here until (it is) called for. 这封信留在这里待领。 Henry looked about as if (he were) in search of something. 亨利向四周环视，似乎在寻找什么。 She studies very hard though (she is) still rather weak. 她尽管很虚弱，但学习仍十分努力。 3．当见到“when/if/where/wherever/whenever/as soon as/as fast as/than ...＋possible/necessary ...”时，可理解中间省略了it is/was。 Answer these questions，if (it is) possible without referring to the book. 如果有可能，请不看书回答这些问题。 When (it is) necessary you can help us to do something. 必要时你可以帮助我们做些事。 4．当it作形式主语时，主语从句可省略that。 It seems (that) Joe is out，not Jack. 外出不在的似乎是乔，不是杰克。 It is an honor (that) I was invited to your birthday party. 我很荣幸被邀请参加你的生日聚会。 It's a pity (that) you can't operate a computer. 很遗憾，你不会操作计算机。 It is the third time (that) I have come to China. 这是我第三次来中国。 5．在限制性定语