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Unit 3 Fit for life
Grammar and usage（教學設計）
I. Learning objectives
By the end of the lesson, students will be able to:
1. learn about the definition and verb form of the present perfect continuous tense;
2. summarize the general rules of present perfect continuous tense;
3. apply the rules in new situations appropriately.
II. Key competence focus
Develop the thinking ability by analyzing and summarizing the general rules of present perfect continuous tense.
III. Predicted area of difficulty
1. Use present perfect continuous tense freely and properly in their writing and speaking.
2. Explore the rules of present perfect continuous tense.
IV. Teaching procedures
Step 1 Warming up
T asks Ss to read part A on page 34 and answer the following questions.
(1) How did the girl feel at the beginning when she was equipped with an artificial hand
Suggested answer: She felt it did not feel like part of her.
(2) What has the girl been doing since she got her new hand
Suggested answer: She has been cooking for her family again.
(3) What does the girl feel about the robotic hand in the end
Suggested answer: She is so grateful for all the new possibilities her robotic hand has opened up.
【設計意圖: 老師首先通過分享一位佩戴機械手的殘疾女孩的自述，設置回答問題的練習，讓學生在具體的情境中提前感知本節課的語法知識，很自然地引入本堂課的語法內容，同時引入了話題，也為本堂課的終極任務做好了鋪墊。】
Step 2 Exploring and working out the rules
T asks Ss to finish the table in part A.
Scientists have been making great progress in robotic technology in recent years, ...
Over the past three months I have been testing out the limits of what I can do with my new hand, ...
..., I have been cooking for my family again since I got my new hand.
T asks Ss to finish “Working out the rules” of part A on page 34.
We use the present perfect continuous tense to talk about an action that started in the past and is
still continuing now, or an action that has just finished but is still connected with (1) __________ (the past/the present/the future) in some way.
The verb form of the present perfect continuous tense is “(2) ______________”.
3. T asks Ss to go through “Grammar notes” on page 99. Give explanations if necessary.
【設計意圖：通過練習觀察讓學生體會現在完成進行時在語境中的用法，粗略理解現在完成進行時的概念以及它的謂語結構。并借鑒課本后面的語法筆記，對學生觀察、探究、理解該語法知識點有一定的幫助。】
Step 3 Applying the rules
T asks Ss to finish part B1.
B1 Complete the sentences with the correct forms of the verbs in the brackets.
(1) I ______________ (reflect) on the article I read about ancient medicine all day.
(2) I ______________ (wait) for two hours to see the doctor but it is still not my turn yet.
(3) My mother ______________ (write) a report on the new treatment all morning. She hopes to finish it tonight.
(4) The company ______________ (make) herbal medicines for more than 100 years.
(5) Scientists ______________ (do) research on the disease since it was first discovered in the early 20th century.
T asks the Ss to finish part B2.
B2 Below is an article about robotic limbs. Circle the correct expressions to complete it.
has been estimated (2) have been hoping for (3) have been developing
have only served (5) have been doing
After finishing B2, T asks Ss to answer the following questions:
(1) What were some of the earliest artificial limbs like
Suggested answer: They were made of wood and leather, and served only basic functions.
(2) With the advancement in robotic technology, what can artificial limbs do
Suggested answer: Artificial limbs can now perform much more complex tasks and come closer to real human life.
(3) Why did David Jones say they would not take out a patent on the technology of robotic limbs
Suggested answer: Because they hoped more and more people in need of robotic limbs would be equipped with the limbs and enjoy a higher quality of life.
【設計意圖：這個步驟是這堂課的核心部分，將語法知識和語境相結合，在語境中學習語法知識。學生通過更正句子中的錯誤時態，進一步理解和把握了現在完成進行時的概念以及謂語結構。通過自主學習、自主探究和合作學習的方式，了解這一語法知識在英語語言中的運用，讓學生在語言實踐中去探索現在完成進行時這一時態，通過句子、語篇兩個層面的鞏固練習，內化新知，從而能夠準確、恰當、得體地使用目標語法。】
Step 4 Role-play interviewing
T asks the Ss to make interview according the article about robotic limbs.
B3 A student is interviewing David Jones about the research his team has been doing. In pairs, role-play the interview using the present perfect continuous tense. The beginning has been given.
Student: What have you been doing, Dr Jones
David Jones: We have been developing ...
【設計意圖：學生根據和上一篇文章相關的話題，以角色扮演的方式運用目標與法進行采訪對話，進一步鞏固本節課的核心知識，將現在完成進行時的用法融入到真實語言中，鼓勵學生學習理解、應用實踐、遷移創新，達到學以致用的目的。這不僅能培養學生的批判性思維能力，而且能幫助學生提升語言表達能力，為寫作打好語言基礎。】
V. Homework
1. Search the information related to the robotic things online.
2. Complete part C of the workbook on page 70.
3

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