Unit 3 Trees and us-Section 2 Exploring and applying rules (Grammar) 教学设计 2024-2025学年沪教版英语七年级下册

Unit 3 Trees and us-Section 2 Exploring and applying rules (Grammar) This section focuses on the grammar of the present continuous tense. In the context of "Trees and us", students will learn to use the present continuous tense to describe actions that are happening now or in the current period. Through various examples related to trees, such as people planting trees, trees growing, and animals living in trees, students can better understand and apply this grammar point. The content also includes the formation rules of the present continuous tense, such as how to change verbs into the -ing form, and the differences in its usage compared with the simple present tense. 教学目标 Students can understand the concept and usage of the present continuous tense. Master the formation rules of the present continuous tense, including the correct form of be verbs (am/is/are) and the transformation of verbs into -ing form. Recognize the common time adverbs and phrases used in the present continuous tense, such as now, at the moment, right now, these days, etc. 教学重难点 1 Key Points The formation and basic usage of the present continuous tense. The transformation rules of verbs into -ing form, especially for some special cases, such as verbs ending with -e, 重读闭音节 verbs, and verbs ending with -ie. How to use the present continuous tense to describe pictures, actions, and ongoing events related to trees. 2 Difficult Points Distinguishing the subtle differences between the present continuous tense and the simple present tense in meaning and usage, and using them correctly in different contexts. Applying the present continuous tense flexibly in real - life communication and writing, and avoiding common mistakes in grammar usage. 1 The Definition of the Present Continuous Tense The present continuous tense is used to express an action that is happening at the present moment or an action that is in progress during a current period. 2 The Formation of the Present Continuous Tense Structure: Subject + be (am/is/are) + verb - ing + other elements. For the first - person singular "I", use "am". For example: I am reading a book about trees now. For the third - person singular (he/she/it and singular nouns), use "is". For example: She is planting a small tree in the garden. The bird is flying in the sky above the trees. For the second - person singular and plural (you), and the first - person and third - person plural (we/they and plural nouns), use "are". For example: You are watering the trees. They are discussing how to protect the forest. The formation rules of verb - ing: General rule: Add -ing directly to the verb. For example: play - playing, read - reading, listen - listening. For verbs ending with a silent -e, remove the -e and add -ing. For example: write - writing, dance - dancing, make - making. For verbs in a 重读闭音节 (a single - vowel letter followed by a single - consonant letter at the end of the word), double the final consonant and add -ing. For example: run - running, swim - swimming, sit - sitting. For verbs ending with -ie, change -ie to -y and add -ing. For example: lie - lying, die - dying. 3 Time Adverbs and Phrases Commonly Used in the Present Continuous Tense Now: It indicates that the action is happening exactly at the moment of speaking. For example: The wind is blowing the leaves of the trees now. At the moment: It has a similar meaning to "now", emphasizing the present time. For example: They are taking care of the young trees at the moment. Right now: Also means "at this very moment". For example: I am thinking about how important trees are right now. These days: It is used to describe an action that is happening during a current period, not necessarily at the exact moment of speaking. For example: We are learning a lot about trees these days. 教学过程 1 Lead - in (5 minutes) Show some pictures of people and trees, such as people planting trees, pruning trees, and trees growing. Ask students: "Look at these pictures. What can you see? What are the people doing? What are the trees doing?" Encourage students to answer in simple sentences. For example, students may answer: "People are planting trees." "The trees are growing." Through this activity, introduce the topic of the present continuous tense and arouse students' interest. 2 Presentation (12 minutes) Write some sentences on the blackboard, such as: I am reading a book. She is singing a song. They are playing football. Analyze the structure of these sentences with students, explain that the present continuous tense is formed by "be + verb - ing", and introduce the correct form of be verbs according to different subjects. Then, show some verbs and ask students to change them into the -ing form, and explain the transformation rules one by one with examples. For example, show "write", ask students how to change it, and then explain the rule of removing -e and adding -ing. Do the same for other types of verbs, such as "run" (double the final consonant and add -ing) and "lie" (change -ie to -y and add -ing). Present some common time adverbs and phrases used in the present continuous tense, such as "now", "at the moment", "right now", "these days", and give examples to illustrate their usage in sentences. For example: "I am doing my homework now." "They are working on a project about trees these days." 3 Practice (15 minutes) Oral Practice: Divide students into pairs. Provide each pair with a set of pictures related to trees and people's actions around trees. One student describes what is happening in the picture using the present continuous tense, and the other student listens and repeats. Then they switch roles. For example, one picture shows a man climbing a tree, and the student may say: "The man is climbing the tree." Conduct a "Quick Response" activity. Show some action pictures on the PPT quickly, and ask students to stand up and describe the actions in the pictures using the present continuous tense as soon as possible. The one who answers correctly and quickly gets a small reward. Written Practice: Hand out a worksheet with some fill - in - the - blanks exercises. The exercises are designed to practice the formation of the present continuous tense. For example: Look! The children ____ (play) near the trees. She ____ (not read) a book now. She ____ (watch) TV. What ____ you ____ (do) at the moment? After students finish the exercises, check the answers together, and explain the reasons for each answer. 4 Production (8 minutes) Group Work: Divide students into groups of four. Each group is required to create a short dialogue about an activity in a forest park. The dialogue should use the present continuous tense as much as possible. For example, they can talk about people having a picnic, children flying kites, and workers cutting grass in the park. After the groups finish creating the dialogues, ask some groups to come to the front of the class and act out their dialogues. The other students listen and pay attention to whether they use the present continuous tense correctly. Writing Task: Ask students to write a short passage about what they are doing to protect trees these days. They can include actions like planting trees, saving paper, and persuading others to protect trees. After they finish writing, ask several students to read their passages aloud in class, and give some simple comments and suggestions on their writing, focusing on grammar usage and content. 5 Summary and Homework (5 minutes) Summary: Summarize the key points of the present continuous tense with students, including its structure, the formation of verb - ing, and common time adverbs and phrases. Ask students to recall and share what they have learned in this class. Homework: Ask students to write a short diary about their activities after school today, using the present continuous tense at least three times. Let students find some English articles or stories about trees in newspapers, magazines, or online, and mark the sentences using the present continuous tense in them. 教学反思 After this class, it is necessary to reflect on the teaching process. Firstly, in the lead - in part, the pictures used can arouse students' interest, but maybe more interactive ways can be adopted to make students more involved. During the presentation, although the rules are explained in detail, some students may still have difficulty understanding the special cases of verb - ing transformation. More vivid examples and more practice opportunities could be provided. In the practice part, students seem to be more active in oral practice, but in written practice, some students still make mistakes in the form of be verbs and verb - ing. This indicates that more targeted exercises are needed. In the production part, group work and writing tasks can effectively improve students' ability to use the present continuous tense in context, but some groups may need more guidance in the process of creating dialogues. For future teaching, it is necessary to adjust the teaching methods according to students' learning situations, strengthen the practice of difficult points, and provide more real - life - like contexts to help students better master the present continuous tense. 2 / 37 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$