Unit 1 Period 2 Grammar activity（课件）英语沪教版2020选择性必修第一册

Grammar activity Unit 1 Feeling good 沪教版2020选择性必修第一册 Contents 01. Lead in 02. Knowledge explanation 03. Practice 04. Team work 05. Summary 06. Assessment 07. Homework 01. Lead in What’s the function of past tense? lead I played football yesterday. Time：yesterday It’s used to talk about past actions. If there are two past actions, how to show which one happened earlier? She the party before I ​​ . arrived​​ had left​​ the past perfect 02. Knowledge explanation What is The past perfect tense ? I suddenly realized that I had left my mobile phone at home. The past perfect tense: When we talk about the past, we can use the past perfect to refer to an even earlier point in time “过去的过去” —— 即一个动作在另一个过去动作 / 时间之前已经发生。 一般过去时（过去的动作） 在 realized 之前就已经发生的动作 ★Learning language--- Observation + Comparison: Look at the sentences from the text and answer the questions. Sentence ¹: For years, people had linked the two, but it was only in the 1960s that solid scientific evidence started appearing. Sentence ³:The students who had exercised did 10% better... than those who hadn’t stepped on the treadmill 1.What is the form of the past perfect tense? had + past participle ★Learning language--- Observation + Comparison: Look at the sentences from the text and answer the questions. Sentence ¹: For years, people had linked the two, but it was only in the 1960s that solid scientific evidence started appearing. Sentence ³:The students who had exercised did 10% better... than those who hadn’t stepped on the treadmill 2.What is the time relationship of the past perfect tense? The past perfect tense describes an action that occurred earlier in the past than another past event or time (often expressed by the simple past tense). ★Learning language--- Observation + Comparison: Look at the sentences from the text and answer the questions. a In the decades that followed, study after study confirmed what the ancient poet had already known b She went to bed after she finished her homework. 3.What is the difference between the two sentences? Sentence a uses the past perfect because there’s no conjunction to clarify the earlier past action.Sentence b uses simple past because the conjunction after already makes the time order clear. ★Learning language---Discovery and Summary: The past perfect is often used together with the simple past. a The past perfect verb shows what happened __________ (before / after) the event or action in the simple past. b We don’t need to use the past perfect form of the verb if the order is clear. In that case, we can use for both events. before the simple past 03. Practice 1.By the time we arrived at the theater, the actor (acknowledge) the audience’s applause. 2.By the end of last year, he (accumulate) a large collection of rare stamps. 3.The committee (approve) the plan before the manager announced it at the meeting. 4.When the truth came out, everyone realized that he (deserve) the prize all along. ★Practice1：用所给此的适当形式填空 had accumulated had acknowledged had approved had deserved 1.当我们到达机场时，飞机已经起飞了。 By the time we got to the airport, the plane ________________. 2.她发现自己把钥匙落在办公室了。 She found that she ________________ her keys in the office. 3.截止到上周末，他们已经完成了项目的 80%。 By last weekend, they ________________ 80% of the project. 4.当他到达派对时，所有的食物都已经准备好了。 When he arrived at the party, all the food ________________. ★Practice 2：根据汉语补全句子 had taken off had left had completed had been prepared 1.When I arrived at the party, most guests ________ (leave). 2.By the time he was ten, he (learn) to play the piano. 3.She realized she (forget) to lock the door after she left home. 4.The project (finish) before the deadline, so we had a celebration. 5.He said he (never visit) such a beautiful place before. 6.By the end of last month, they (plant) over 1,000 trees. 7.After he ________ (do) his homework, he went to bed. 8.When the police arrived, the thief (escape). ★Practice 3：单句语法填空 had left had learnt had forgotten had been finished had never visited had planted had done had escaped 04. Team work Task 1: In groups, find past perfect and simple past sentences in the text. Record them in a table to analyze which action happened first. 过去完成时句子 一般过去时句子 谁先发生？ Task 2: Work together to summarize the past perfect + simple past pattern. 提供公式填空： 过去完成时（动作 A，______发生） + 一般过去时（动作 B，______发生） → 明确 “过去的过去” 逻辑。 对比分析文章例句，讨论 “为何动作 A 要用过去完成时，动作 B 用一般过去时？” Task 3: Use it to write sentences about health, exercise, or learning (like the text’s theme). Task 4:Present your sentences/scenes. Peers evaluate grammar, time logic, and creativity. 提供公式： By the time our school __________ (hold) the sports day, we __________ (train) for months. When the doctor __________ (advise) a diet change, she realized she __________ (ignore) health warnings. Category Criteria Example (Correct/Incorrect) Grammar Correct past perfect structure √ They had exercised before the exam. × They have exercised before the exam. Time Logic Clear “past of the past”order √ After he had practiced, he won the race. Creativity About the health/exercise (text theme) √ By the time we changed habits, our energy had improved. 05. Summary The past perfect tense 过去完成时 更早的过去 较近的过去 现在 动作一完成点：action 1 动作二发生点：action 2 当前时间点：now 06. Assessment Learning Objectives Score(1-5) 1.After learning, I am able to identify the structure of the past perfectand distinguish it from the simple past. 2.After learning, I am able to summarize rules for past perfect usage. 3.After learning, I am able to strengthen teamwork through group tasks , improving communication and cooperation. 5-完全能；4-基本能；3-不确定；2不太能；1-完全不能 07. Homework ★Compulsory work： Use these passage-related verbs (link, confirm, exercise, improve, abandon) to write 5 sentences with the past perfect, focusing on health/exercise. ★Optional work ： Interview friends about their health habits. Ask questions like: “Before you started [a habit, e.g., jogging], had you tried other ways to stay healthy?” Record 3 sentences with the past perfect from their answers. Share your sentences with them to check accuracy. 1. By the time the new research confirmed the benefits of exercise, scientists had already linked physical activity to mental health. 2. Before the experiment confirmed that exercise boosts memory, researchers had analyzed thousands of data points. 3. By the time the athlete competed in the marathon, she had exercised rigorously for six months. 4. By the time Tom noticed his energy levels rise, he had already improved his diet and exercise routine for weeks. 5. Before the doctor advised him to quit smoking, he had already abandoned the harmful habit on his own. Thank you for your listening $$