Unit 3 Diverse Cultures Discovering Useful Structures 课件-2025-2026学年高中英语人教版（2019）必修第三册

该高中英语课件聚焦“省略”语法点，通过“语法探究”环节的对话实例（如“Me, too.”）引导学生发现省略现象，搭建从语境感知到规则归纳的学习支架，系统梳理简单句、并列句、复合句中的省略类型及用法。 其亮点在于融合语言能力与思维品质培养，采用中英文对照例句（如宾语从句省略“I think so”）和“合作探究”归纳状语从句省略条件，结合“即学即用”练习与表格化固定短语小结（如if possible），帮助学生提升语法应用能力，也为教师提供结构化教学资源，提高课堂效率。

Unit 3 Diverse Cultures Section Ⅱ　Discovering Useful Structures 英 语 内容索引 走近新课 语法探究 随堂练习 走近新课 先翻开课本，完成第一题，再看视频 3 Read the following sentences and find the words that have been omitted to avoid repetition. 1 A: Oh, I just love nachos! Mexican corn chips covered in cheese! B: Me, too. (I love nachos, too.) 2 A: So it's the food of many different cultures, all in one dish? B: Exactly. (It is exactly the food…) 3 A real mix of cultures here! (There is/It is) a real mix of cultures here! 4 Can't wait! (I) can't wait (to go there / for that)! (They are) (and they are) 自己写，请同学来回答 4 Ellipsis What is Ellipsis? Why should we use Ellipsis? Ellipsis：省略 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 语法探究 语法讲解 知识脉络 先介绍英语三种句型 8 省　略 在英语句子中,常见的省略情况有以下几种: 一、简单句中的省略 1.省略主语 (It) Sounds good to me. (这)对我来说听起来不错。 (I) Don’t know. (我)不知道。 (You)Go down the street, turn right and you’ll find the hospital. (你)沿着这条街走，右转，就能找到医院。 2.省略谓语或谓语的一部分 (Sit) In your own chair. (坐)在你自己的椅子上。 (Is) Anybody here?有人吗? 3.省略宾语 —Do you know Henry? —No, I don’ t know (Henry/him). ——你认识亨利吗? ——不,我不认识(亨利/他)。 —How can I start the machine? —Sorry, I don’ t know (how to start the machine). ——这个机器怎么启动? ——对不起,我不知道(怎么启动这个机器)。 4.省略主语和谓语,或主语和谓语的一部分 (I am) Coming. (我)来啦。 (Do you want) Any drink? (你想要)喝点什么吗? —What do you suggest? —(I suggest) Going fishing on Sunday. ——你有什么建议? ——(我建议)周日去钓鱼。 5.不定式to后省略动词(不限于简单句) 通常为了避免重复，在语意明确的语境中，做宾语或宾语补足语的不定式to后可省略动词。该用法常用于would like、love、hope、wish、expect、refuse、mean、try、forget、prefer等动词或短语之后。 —Will you go with me? —Well, I’d like to (go with you). ——你愿意跟我去吗? ——哦，我愿意。 二、并列句中的省略 在并列句中，如果后面分句中有内容和前面分句中的内容相同,有时可以省略,以避免重复。 His advice made me happy, but (his advice made) Jim angry. 他的建议使我高兴,却使吉姆生气。 Jack must have been playing football and Mary (must have been) doing her homework. 杰克肯定一直在踢足球,玛丽肯定一直在写作业。 三、复合句中的省略 1.宾语从句中的省略 (1)在由which、when、where、how和why等词引导的宾语从句中，若有与前面重复的内容,则可将重复内容省略。 You have solved the problem. Can you tell me how (you solved the problem)? 你已经把问题解决了。你能告诉我你怎样解决的吗? (2)在宾语从句中常省略连词that，但当及物动词之后接两个或两个以上的宾语从句时，只有第一个连词that可省略。 The manager explained (that) the task was difficult and that the weather was bad. 经理解释说任务艰巨而且天气糟糕。 (3)当答句中含有I’m afraid、I think、I believe、I hope、I guess时,后面常用省略形式。so表示赞同前述的事实,not表示不赞同前述的事实。 —Do you think our team will win? —I think so.(=I think our team will win.) ——你认为我们队会赢吗? ——我认为会赢。 —Is it going to rain this afternoon? —I hope not.(=I hope it is not going to rain this afternoon.) ——今天下午会下雨吗? ——我希望不会下雨。 2.定语从句中的省略 在限制性定语从句中,做宾语的关系代词whom、which、that可省略(但whom、which紧跟在介词后时不能省略)。 The book (that/which) I borrowed from the library is very interesting. 我从图书馆借的那本书非常有趣。 He is the man (whom/that) we met at the party last night. 他就是我们昨晚在派对上遇到的那个人。 This is the teacher to whom I sent the letter. 这就是我寄信给他的那位老师。 The company in which he works is very famous. 他工作的那家公司很有名。 3.状语从句中的省略 在时间、地点、条件、方式或让步等状语从句中,若从句中的主语是it或与主句的主语相同且从句的谓语中含有be时,常省略从句的主语和be。 Look out for cars when (you are) crossing the street. 当你穿越街道时要当心车辆。 Please make a mark where (it is) necessary. 请在必要的地方做个标记。 Though (they are) reduced in numbers, they are still strong. 虽然人数减少了,但他们仍然强大。 Lucy hurriedly left the room as if (she was) very angry. 露西急匆匆地离开房间,好像很生气的样子。 3.状语从句中的省略 在时间、地点、条件、方式或让步等状语从句中,若从句中的主语是it或与主句的主语相同且从句的谓语中含有be时,常省略从句的主语和be。 Look out for cars when (you are) crossing the street. 当你穿越街道时要当心车辆。 Please make a mark where (it is) necessary. 请在必要的地方做个标记。 Though (they are) reduced in numbers, they are still strong. 虽然人数减少了,但他们仍然强大。 Lucy hurriedly left the room as if (she was) very angry. 露西急匆匆地离开房间,好像很生气的样子。 3.状语从句中的省略 在由than、as引导的比较状语从句中，常常省略与主句相同的部分（主语、谓语、宾语等），只保留对比的核心成分。 Tom is taller than (he was) before. 汤姆比以前高了。 They gave him more money than (they gave) his brother. 他们给他的钱比给他哥哥的还多。 I trust you as much as (I trust) him. 我信任你如同信任他一样。 The result was better than (it was) expected. 结果比预期要好。 【合作探究】 说一说·勤归纳　 状语从句(除比较状语从句)的省略须符合两个条件: ①从句的主语是it或从句的主语和主句的主语一致。 ②从句中的谓语动词中含有系动词be。 (2)在than，as等引导的比较状语从句中常省略某些成分。 They don't use more water than (it is) necessary. 他们使用的水没有超出所需量。 He runs as fast as Bob (runs). 他和鲍勃跑得一样快。 【补充】 [点津]　并非所有的状语从句都可以省略主语和be动词，由after，before，because等词引导的状语从句一般要改写成介词短语、分词短语等，用动名词代替be动词。 Because he was ill，he didn't attend the meeting. →Because of being ill，he didn't attend the meeting.(正) →Being ill，he didn't attend the meeting.(正) →Because ill，he didn't attend the meeting.(误) 状语从句中的省略 练习： 1). 放烟花时你要小心。 You should be careful fireworks. 2). 必要时我会向你求助。 　　　　　　　　, I will turn to you for help. 3). 除非修理，否则这台机器是没有用的。 　　　　 　　　　, the machine is of no use. 4). 如果有任何问题，你可以问我。 You can ask me questions if 　　　　. when setting off When necessary Unless repaired any 状语从句中的省略 【即学即用】 句型转换 (1)If it is possible,I will attend the meeting. →　　　　　　 　　　　　　,I will attend the meeting.  (2)To the problem,he gave the same answer as he had given before. →To the problem,he gave the same answer 　　　　　　　　　　　.  (3)When the ice is heated,the ice in the kettle will turn into water. →　　　　　　 　　　　　,the ice in the kettle will turn into water.  (4)Nothing can stop you from doing it if you want to do it. →Nothing can stop you from doing it if you 　　　　　　　　　　　　.  (5)Peter ate an egg and he also drank a glass of milk. →Peter ate an egg 　　　　　　　　　　　　a glass of milk.  If possible　 as before　 When heated want to and drank 完成句子 1.希望不久能收到你的来信。 　　　　 　　　　　　hear from you soon.  答案：Hope to 2.正如计划的一样,他们按时出席了会议。 They attended the meeting on time 　　　　　　　　　　　　.  答案：as planned/scheduled 3.他比预料的晚回了三天。 He came back three days later 　　　　　　　　　　　　.  答案：than expected 4.——明天天气会放晴吗? ——我希望这样。 —Will it clear up tomorrow? —I 　　　　　　　　　　　　.  答案：hope so 5.当被提供帮助时,人们常说“谢谢”或“你太好了”。 When 　　　　　　　　　　　　, one often says “Thank you” or “It’s kind of you”.  答案：offered help 25 提分技巧 先做课本2、3题，再做随堂练习 26 When she heard the sharp scream, she froze with fear in the dark room. Although he was worn out after a whole day’s search, he still refused to give up finding the lost child. If it is necessary, I will stay here with you until your family comes to pick you up. If I had known you were suffering so much, I would have come to accompany you earlier. Because he was deeply moved by the old man’s words, he made up his mind to change himself. = Hearing the sharp scream =Worn out after a whole day’s search = If necessary = Had I known you were suffering so much 虚拟语气，用倒装句 = Deeply moved by the old man’s words 27 6. She sat quietly on the bench and she was absorbed in the beautiful sunset glow. 7. As soon as he saw the big wolf in the woods, he turned around and ran away quickly. 8. Unless it is treated properly, the small wound on your hand may get infected. 9.If it were not for the warm smile of the stranger, I wouldn’t have the courage to step forward. 10. When he was faced with such an unexpected situation, he didn’t know how he should react. = Sitting on / , absorbed in = Seeing the big wolf in the woods, = Unless treated properly, = Were it not for the warm smile of the stranger, = Faced with such an unexpected situation， 28 When ____ (wander) along the street, she came across an old friend. Once ____ (publish), the book will become a bestseller among young readers. If ____ (convenience), please send me the latest version of the report this afternoon. The teacher noticed the student ____ (slip) out of the classroom quietly during the break. There was nothing they could do but ____ (wait) for the rescue team to arrive. ~ing ~ed convenient If it is convenient slip notice sb. do sth. wait but 前有实义动词 do，后面不需要to 29 “有 do 无 to” ：but/except/besides 介词结构 有实义动词 do He did nothing but sleep all day. I have nothing to do but wait for the result. We could do nothing but keep trying. 没有实义动词 do He had no choice but to accept the fact. There is no way out but to keep moving forward. except /besides 同规则 She does everything except cook. I had nothing to do besides read books. 30 1. 表 “偏好、宁愿” 的平行结构 would rather do sth. than do sth. 宁愿做…… 也不愿做…… would sooner do sth. than do sth. 宁愿做…… 也不愿做…… prefer to do sth. rather than do sth. 宁愿做…… 而不愿做…… 2. 表 “不得不、只能” 的固定结构 cannot but do sth. =can't help but do sth. 不得不；忍不住做某事 can't help doing sth. 情不自禁做某事 3. had better (not) do sth. 最好（不）做某事 4. Why (not) do sth.? 为什么（不）做某事？ 31 6、The performance was far more wonderful than ____ (imagine) by the audience. 7、Though ____ (shock) at the bad news, she managed to keep calm in front of others. 8、You can speak a little louder if ____ (need) so that everyone in the back can hear you. 9、The boy wanted to ride his bike in the yard, but his mother told him not ____. 10、Unless ____ (invite), I won’t attend the party. ~d ~ed needed If it is needed to tell sb. not to do sth. ~d 32 短语 含义 例句 if possible 如果可能的话 If possible, I’d like to leave a day earlier. if necessary 如果有必要的话 You can ask for leave if necessary. if so 如果是这样的话 You may have passed the exam. If so, congratulations! if not 如果不这样的话；否则 Hurry up, if not, we’ll be late. if any 如果有的话（表数量极少） Correct the mistakes in the passage, if any. if ever 如果曾经有的话（表频率极低） He seldom goes out, if ever. 33 Class is Over. Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 省略 $