九年级下册 Unit 4 课时3 语法-【宝典训练】2025-2026学年九年级全一册英语高效课堂教学课件（沪教牛津版 广州深圳沈阳通用）

该初中英语课件聚焦“it用法小结”，涵盖it作代词（指代物或不明身份的人）、形式主语（时间/天气/固定句型等8类）及形式宾语的核心语法点，通过“基础情境例句（如‘It is raining’）→ 句型分类讲解（如‘It is + adj + to do sth’）→ 综合运用练习”的脉络，搭建从具体到抽象的学习支架。 其亮点在于“课时精讲+过关”双模块设计，讲解分点清晰（如形式主语8种句型系统分类），练习多样（选择填空、指代分析、语法填空等）。结合语言能力（理解运用it的不同功能）、思维品质（分析it指代关系与语法结构），例如让学生指出it指代的具体内容，培养逻辑分析能力。学生可系统掌握语法，教师能直接用讲解框架与练习题，提升教学效率。

天骄出品 必属精品 深圳天骄文化传播有公司 宝典训练 配套教学课件 高效课堂 课时3　语法 Unit 4　Natural disasters 目录 CONTENTS 2 课时过关 1 课时精讲 Ⅰ.1—5　CABCC 6—12　CACBBCA Ⅱ.1.get to the top of the Himalayas　 2. the poor man doesn’t want to get others’ help　 3. read a book on rainy days　 4. the dog is sick　 5. watch the same movie again and again　 Ⅲ.1.months’ 2.it 3.to help 4.suggestions5.experienced 6. which 7.will make 8.for 9.a 10.more enjoyable　 Ⅳ.1—5　ADFBC 课时过关 返回 目录 课时精讲 单元语法讲解：it用法小结 一、it用作代词，指代物，指前面提到过的同一事物 Yesterday I bought a new bike and it was very expensive. You mustn’t play with the knife.It is too dangerous. 二、it也可指代人，一般指不明身份的人 Whose baby may it be？ Last midnight， someone broke into my room.It must be a thief. — Who is knocking at the door， Sarah？ — It may be Kate. I invited her here. 课时过关 返回 目录 课时精讲 三、it作形式主语 1. it指时间、季节、天气、距离等 It is 8：50. It is autumn now. It is raining cats and dogs outside. It is about a ten-minute ride from my home to the school. ＝It is about ten minutes’ ride from my home to the school. 课时过关 返回 目录 课时精讲 2. 用于固定句型“It is/was/will be＋形容词＋（for/of sb.）＋to do sth.” It is exciting to read comics. ＝Comics are exciting to read. It is warm-hearted of you to help me a lot. ＝You are warm-hearted to help me a lot. It must be very difficult for you to complete the work alone. ＝To complete the work alone must be very difficult for you. 课时过关 返回 目录 课时精讲 3. 用于固定句型“It is no good （no use， no fun） doing sth.”或“It is （great） fun doing sth.”，注意这里的good、 use和fun都是名词 It is great fun walking and cycling in Guilin. It is no good drinking too much alcohol. It is no use speaking loudly now. He is out. 课时过关 返回 目录 课时精讲 4. 用于句型“It is/has been＋时间段＋since…（从句用一般过 去式）” It is two years since Kate left here. It has been two years since Kate left here. 5. 用于句型“It’s time to do sth.”或“It’s time for sth.” It is time to have class now. ＝It is time for class now. 课时过关 返回 目录 课时精讲 6. 用于句型“It takes/took/will take （sb.）…to do sth.” It took a long time to build the wall. ＝To build the wall took a long time. It will take me two hours to complete the homework. ＝I will spend two hours （in） completing the homework. 7. 用于句型“It’s one’s turn/duty to do sth.” It is my turn to give you a talk. It is everybody’s duty to care for the old. 课时过关 返回 目录 课时精讲 8. 用于句型“It seems/seemed/appears/appeared that＋从句”或 “It is said/reported that＋从句” It seems that you are sad. ＝You seem to be sad. It is said that Jack left for the USA yesterday. 课时过关 返回 目录 课时精讲 四、it作形式宾语 在初中阶段，it作形式宾语一般用于句型“find/think等＋it＋形 容词＋to do sth.”。 I found it difficult to help them out.（it在此句中作形式宾语） ＝I found （that） it was difficult to help them out.（it在从句中 作形式主语） I think it necessary for us to learn English well.（it在此句中作形 式宾语） ＝I think （that） it is necessary for us to learn English well.（it 在从句中作形式主语） 课时过关 返回 目录 课时精讲 Ⅰ.选择填空 （　C　）1. Is  　　　　necessary to complete the design before New Year？ A. that B. this C. it D. these （　A　）2. It’s necessary  　　　　notes in class. A. to take B. taking C. takes D. took C A 课时过关 返回 目录 课时精讲 （　B　）3. I think  　　　　not difficult  　　　　English every morning. A. that； keep reading B. it’s； to keep reading C. that； to keep reading D. it；kept （　C　）4. My mom often tells me  　　　　is good for my health to go to bed early and get up early. A. this B. that C. it D. these B C 课时过关 返回 目录 课时精讲 （　C　）5. Tim， stop talking.  　　　　is not allowed to talk loudly in the library. A. This B. That C. It D. These （　C　）6. —Do you like English？ —Yes， but I think  　　　　is a great challenge to learn the language well. A. that B. this C. it D. / C C 课时过关 返回 目录 课时精讲 （　A　）7. I like comedies.  　　　　relaxing to watch them after a day’s hard work. A. It’s B. They’re C. I’m D. We’re （　C　）8.  　　　　 is unhealthy for us to go to school without eating breakfast in the morning. A. That B. This C. It D. These （　B　）9.  　　　　 is quite easy for people to find any place in the world with the help of online maps. A. That B. It C. One D. Someone A C B 课时过关 返回 目录 课时精讲 （　B　）10. When we got to the park yesterday，  　　　　 started raining. A. that B. it C. this D. them （　C　）11. —There are dark clouds， and the wind is blowing strongly. —It  　　　　that a typhoon is coming. A. feels B. hears C. seems D. smells B C 课时过关 返回 目录 课时精讲 （　A　）12. —How far is your home from here？ — 　　　　 me 30 minutes to get here on foot. A. It will take B. It will spend C. I will spend D. I will took A 课时过关 返回 目录 课时精讲 Ⅱ.请在横线上写出句子中画线的It指代的是哪一部分 1. It is impossible for you to get to the top of the Himalayas. ⁠ 2. It seems that the poor man doesn’t want to get others’ help. ⁠ 3. It is nice to read a book on rainy days. ⁠ 4. It appears that the dog is sick. ⁠ get to the top of the Himalayas the poor man doesn’t want to get others’ help read a book on rainy days the dog is sick 5. It is boring to watch the same movie again and again. ⁠ watch the same movie again and again 课时过关 返回 目录 课时精讲 Ⅲ.语法填空 　　After more than two 1. （month） online studying， I find that 2. （itself） is extremely important for the school to produce some excellent online courses 3. ⁠ （help） more students learn better at home.Here are some 4. （suggest） on how to produce good ones. months’　 it　 to help　 suggestions　 课时过关 返回 目录 课时精讲 　　First， I suggest that the school select some 5. . （experience） and talkative teachers to present the lessons.This will make the online courses more welcome. 　　Second， teachers need to improve their online communication and interaction （互动） skills 6. are quite different from common classes.Good interaction 7. （make） students get involved a lot. experienced　 which　 will make　 课时过关 返回 目录 课时精讲 　　Finally， the school should provide a good Internet channel 8. students， through which students will have 9. ⁠ better view experience. 　　With these tips， I believe that online courses will be 10. （enjoy） for students to study and review at home. for　 a　 more enjoyable　 课时过关 返回 目录 课时精讲 Ⅳ.短文填空 　　阅读下面短文，并从方框里的六个句子中选择五个还原到 原文中，使原文的意思完整、连贯。 A. But others do not have many. B. Sometimes they break more buildings than the earthquake itself. C. What kind of building stays up best in an earthquake？ D. There is often a great noise during an earthquake. E. The inside of the volcano is very hot and rocks flow like water. F. Some people say that earthquakes often happen near volcanoes， but it is not true. 课时过关 返回 目录 课时精讲 　　Some countries have a large number of earthquakes. Japan is one of them. 1. For instance， there are few earthquakes in Britain. A 　 　　2. The ground vibrates （颤动）. Houses fall down. Railways are broken， which causes trains to turn over. An earthquake can also cause a tsunami. On March 11th， 2011， a deadly earthquake struck Japan， causing tens of thousands of casualties （遇难者）and damaging buildings. A massive tsunami， triggered （引起） by the earthquake， caused massive casualties and the leakage accident of the Fukushima Nuclear Power Plant. D 　 课时过关 返回 目录 课时精讲 　　3. The centres of some earthquakes are under the sea. The bottom of the sea suddenly moves. The powerful forces inside the Earth break the rocks. The coast is shaken and great waves appear. These waves travel long distances and rush over the land when they reach it， breaking down houses and other buildings. 4. ⁠ F 　 B 　 课时过关 返回 目录 课时精讲 　　A terrible earthquake happened in Assam， India， in 1897. The land near Shillong suddenly moved 1.5 feet to one side， and then back again. It continued to act like this 200 times a minute. Few buildings could stand what was happening and the great stones flew four feet up into the air. 5. The Americans carefully studied the results of the earthquake at San Francisco （1906） and believed it best for buildings to be made with concrete （混凝土） walls together by steel frames. Such are the buildings that can’t burn or fall easily. C 　 课时过关 返回 目录 课时精讲 $