Unit 5 A delicate world Using language 课件-2025-2026学年高中英语外研版选择性必修第二册

该高中英语课件聚焦“it作形式宾语”语法点，通过原句观察与“八戒帮你秒懂”趣味标签导入，从含义、结构到用法（含不定式、动名词、从句及特殊结构）逐步展开，结合形式主语对比辨析，构建递进式学习支架。 其亮点在于系统拆解“动词+it+宾补+真正宾语”结构，用对比表格明晰易混点，搭配真题体验与分层习题（填空、翻译、改写）。融入语言能力（翻译与真题提升表达）、思维品质（结构分析与对比辨析），如“区分形式主语和形式宾语”练习。助力学生系统掌握语法，提升解题能力，教师可直接用于教学，提高效率。

Unit 5　A delicate world It as an empty object （it作形式宾语） Grammar 1.语法原句再现 ①No visitor would think it surprising that the island is a UNESCO World Heritage Site. ②Experts felt it necessary to come up with a plan to remove all the rabbits from the island. ③This incident made it clear that the rat,mouse and rabbit problem needed solving once and for all. 通过观察上面3个句子可知,句中的it充当了形式宾语。 1. Meaning (含义) 3.Usage (用法) 5. Exercises (习题) Teaching Objectives of Past perfect passive 2.Structure (结构) It as an empty object 4.易混点辨析 当不定式(短语)、动名词(短语)或从句在句中作宾语时，为使句子结构平衡，常用it作形式宾语，将真正的宾语后置。以平衡句子结构。 Experts felt it necessary to come up with a plan to remove all the rabits from the sland. 一. Meaning (含义) 二.Structure (结构) 动词+it+宾语补足语+真正的宾语 不定式（to do) 动名词(doing) 从句(that/.....) 三.Usage (用法) 1.sb + 动词 + it+ 宾语补足语 + 真正的宾语(to do) think, believe, make, find, consider, feel, take, make... 形容词 名词 1. I find it pleasant ____________________. 我觉得和他一起工作很愉快。 2. He makes it a rule never _______________________. 他的规矩是从不向别人借钱。 Translate to work with him. to borrow money from others. 2.sb + 动词 + it + no good + 真正的宾语( doing) think believe make find consider feel take make... no use no value a waste of time hard work worthwhile Translate 1. He thought it no use ______________________. 他认为企图说服他们是没有用的。 2. I think it no good __________________________. 我认为花太多时间看电视是没有好处的。 spending too much time watching TV. trying to convince them 3.sb + 动词 + it+ 宾语补足语 + 真正的宾语(that从句) think, believe, make, find, consider, feel, take, make... 形容词 名词 Translate 1. I find it strange ________ she doesn’t want to go. 她竟然不想去，我觉得奇怪。 2. We make it a rule/point _______we should visit the old every weekend. 我们规定/坚持每个周末都去拜访那些老人。 that that 四.特殊结构 1.sb + 动词 + it + when/if 从句. appreciate enjoy like dislike love hate prefer等少数表示情感态度的动词之后。 He hates it when people use his bike. I enjoy it that everyone had a good time. Translate 他讨厌别人用他的自行车。 每个人都玩得高兴我很开心。 He will appreciate it if they assist him to tackle the problem. 如果他们帮他解决这个难题，他将非常感激。 2. sb + 动词 ＋介词 + it + that (从句） depend on rely on see to（处理；照料；负责） stick to（坚持；信守；坚守（原则/计划/承诺等） take ...for granted（认为……理所当然） owe ...to sb（把……归功于某人；欠某人（人情/钱）） 1.Would you see to it that she gets home early？ 你负责保证她早到家，好吗？ 2.You can`t depend on it that he will keep his promise that he will mount the top of the mountain. 你不能指望他会遵守他登上山顶的诺言。 3.He owes it to his friend`s help that he has made great progress in English. 他把在英语方面取得的巨大进步归功于朋友的帮助。 Translate it 作形式宾语 (Object) 核心结构：主语 + 谓语 + it + 宾补 + 真正宾语 位置特征：it 位于谓语动词之后 核心目的：避免宾语过长，保持句子平衡 We find it important to protect animals. it 作形式主语 (Subject) 核心结构：It + 谓语 + 真正主语 (to do/that) 位置特征：it 位于句子开头 核心目的：避免主语过长，突出核心内容 It is important to protect wild animals. 辨析小技巧： 看 it 的位置 + 是否有宾补（形容词/名词）。 有宾补则为形式宾语，无则大概率为形式主语。 4.易混点辨析 it作形式宾语 与 it作形式主语 1.7.2013 在学习it的用法时，很多同学会混淆形式宾语和形式主语。这张表格清晰地展示了它们的区别。首先看位置，形式宾语it在谓语动词后面，而形式主语it在句子开头。其次看结构，形式宾语后面通常会有一个宾语补足语，也就是形容词或名词，而形式主语后面直接跟真正的主语。记住这个小技巧，就能轻松区分它们了。 ‹#› I think it a responsibility to leave a green planet for our future. We find it important to live in harmony with nature. It is widely believed that every small action counts. It seems necessary to reduce pollution immediately. 5. Modern society makes it possible to use clean energy. 6. It is our duty to protect this delicate world. 区分it做形式主语(S)和形式宾语(O) O O O S S S 句子语法填空 ①We all regard 　　　　 our duty to help those in need.  ②I think it very interesting 　　 　　 (learn) English.  it to learn 5. Exercises (习题) 3. I'd appreciate  ______if you could let me know in advance whether or not you will come. 4.Susan made ____clear to me that she wished to make a new life for herself. 5.We feel it our duty _________  (make) our country a better place. 6.I find it hard ________ me to get on well with my classmates. 7.I think it no use_______  (talk) about it with them. 8.We find it essential_________  we should learn to spend money wisely.  it     it to make  for    talking  that 1.Mexicans consider 　　　 inappropriate to eat with utensils.  2.That was why none of the children thought ________ unusual that David had decided to join the cross-country team.  3.We see 　 as a chance to try to break the growing disconnect between people and nature.  4. Jeff felt 　　 hard to turn off the gas quickly enough.  it 第1组：真题体验 it it it Ⅰ.句子语法填空 1.Foreigners found it interesting 　　　 　 (watch) crosstalk in a traditional theatre.  2. I think it no use 　　　 　 (complain).  3. How would you like 　　　　 if you were watching your favourite TV programme and someone came into the room and just shut it off without asking you?  to watch complaining it 第2组： 4.We make it 　 　 rule that each of us cleans the bedroom one day a week.  5.Why don`t you bring it to his attention 　　　　 you`re too ill to work on?  6.I consider it a priority 　　　 　 (maintain) a healthy work-life balance.  7.When you leave,you must see to 　　　 that the window is closed.  a that to maintain it 8.He made it 　　　　 (know) to everyone that he was right.  9.I hate it 　　　　 people talk over me or interrupt me when I`m trying to speak.  10.Some people take 　　 for granted that their friends will always be there for them,but loyalty is earned,not automatic.  known when it I think it a responsibility to leave a green planet for our future. We find it important to live in harmony with nature. It is widely believed that every small action counts. It seems necessary to reduce pollution immediately. 5. Modern society makes it possible to use clean energy. 6. It is our duty to protect this delicate world. 区分it做形式主语(S)和形式宾语(O) O O O S S S 1.I think it my honor （invite） to speak here. 2. The noises made it impossible for me （go） on with the work. 3.I find it no use （advise） him to change his mind. 4.I feel it hard work （persuade） him into doing it. to be invited　 to go　 advising　 persuading　 5.He disliked it she behaved badly before his mother. 6.See to that you’re ready on time. 7.She can’t stand when she is kept waiting. 8.I took for granted that he would believe in us. when　 it　 it　 it　 第3组： ADD YOUR TITLE HERE Let’s practice 1. I consider it no use ___________(talk) with him about it . 2. I don’t think _______ possible to master a foreign language without much memory work. 3. I would appreciate _______ if you would like to teach me how to use the computer. 4. The Internet makes it possible _________(share ) the latest news. 5. I think _______ my duty to help her. talking it it to share it 27 I. 选词填空 1. She thought it no good ___________ (to worry/ worrying) about him. 2. I think it necessary for you ________ (to tell/telling) the truth to the boss. 3. The public may find it surprising _________ (whether/ that) the 7-year-old girl can speak more than 3 languages. 4. They found it pleasant ________ (that/why) they had worked with those scientists from China. 5. I hate it __________ (why/when) someone comes in without knocking at the door. worrying to tell that that when II. 用适当的内容或括号中所给单词的适当形式填空。 1. They felt _________ difficult to finish the work in such a short time. 2. I’d appreciate it _______ I didn’t have to do so much work. 3. Some people may think _______ a waste of money repairing the ancient building. 4. They have made it a rule ______________ (not smoke) in the room. 5. We all consider it important _________ (put) theory into practice. it not to smoke if it to put III. 用适当的内容或括号中所给单词的适当形式完成短文。 Some students may take it for granted that their parents should send them to school, so they think 1. _______ unnecessary for them 2. ________ (thank) their parents for what they have done. In fact, their thought is wrong. In my opinion, our parents’ hard work and efforts make 3. ______ possible for us to get a good education and live a happy life. Every student should believe 4. ____ very important to study hard. They also should realize it is a waste of time and money 5. ________ (play) video games often and focus all their attention on their studies. it to thank it playing it 1. I would appreciate ______ if you could let me know in advance whether or not you will come. 2. Susan made _____ clear to me that she wished to make a new life for herself. 3. We feel it our duty ________(make) our country a better place. 4. I find it hard ______ me to get on well with my classmates. 5. I think it no use ________ (talk) about it with them. 6. We find it essential ______ we should learn to spend money wisely. 7. The right level of background noise may interrupt our normal patterns of thinking just enough to allow our imaginations to wander, without making it impossible ________(focus). it it to make for talking that to focus Task 1: Fill in the blanks. Many people think it a good idea to keep this turtle as a pet. believe it no big issue to release them into the wild people have found it a threat to other species to release these turtles into the wild Expects consider it important for owners to keep theirs pets in an enclosed area. 课本p70(2) I saw it as impossible to grow anything in the 1960s, but now I find it amazing to see the forest. We considered it unrealistic to plant trees in the desert, but the workers proved it likely to succeed. Historians call it a breakthrough to investigate how they managed to transform the land. 课本p71(3) $