Unit3 The world of Science Using language 课件 2023-2024学年高中英语外研版（2019）必修第三册

Unit 3 The World of Science Using Language: Present Perfect Passive Class begins,good afternoon class. Sit down please. Today we are going to have a grammar lesson. Lead in What can robots do in the video? To conclude, robots have been designed to help people in many fields. Using language . First please watch a video clip and find out what can robots do? Build cars fit in small place and do some dangerous things Hospital robots delivery robots Help clean the house So we can conclude that robots have been designed to help people in many fields Identify the tense 1.Fill in the blanks. In the last decade, robots have been employed (employ) across various industries. They have been designed (design) to perform tasks more efficiently and accurately than humans. With advancements in technology, these robots have been programmed (programme) to operate autonomously, minimizing human error. As a result, many jobs that were previously done by people are now being done by machines. Despite concerns over job displacement, the integration of robots has been seen (see) as a necessary step towards improving productivity. Using language Now,please look at your paper sheet,read more information about robots and fill in the blanks. You can discuss with your partner. You have two minutes Ok let’s read it together Identify the tense 2.What is the structure of the tense? In the last decade, robots have been employed across various industries. They have been designed to perform tasks more efficiently and accurately than humans. These robots have been programmed to operate autonomously, minimizing human error. The integration of robots has been seen as a necessary step towards improving productivity and efficiency. Using language has /have been done Now,please look at these four sentences, do you find some similar structure? Pay attention to the word in green. Yes they are in the same structure has have been done. Well done, Understand the tense 1.What is the tense made up of? Present perfect passive have/has been done Present perfect Present passive have/has done be done Using language Actually we call this tense present perfect passive(现在完成时的被动语态), Now can you guess what is the tense made up of ? Actually we can divide the tense in to two part, first is the have/ has been is present perfect, and be done is the present passive. So present perfect passive is a combination of present perfect and present passive Understand the tense 2.Compare the sentences and finish the boxes. Using language Robots have employed across various industries. Robots are employed across various industries. In the last decade, robots have been employed across various industries. State of action Voice(语态) Focus When started? When ended? active passive result or effect Sentence1 Sentence2 sentence3 in the past in the past now now active passive passive result or effect result or effect After knowing the form ,let’s learn the meaning of the tense. Please compare the sentences and finish the boxes. 2mins go. Any volunteers, in sentense1 when the action started ?when ended? The voice is …does it focus on result or result? So now we now, present perfect passive is tense that started in the past and ended now, voice is passive, and focus on result or effect. Understand the tense Using language 3.What adverbial of time are often applied in the tense? 1) The machine hasn’t been sent for yet. 2) The technological problem has already been solved. 3) Technological problems of the robots have been discussed for nearly two hours. Now, let’s learn when we should use the tense Please look the three sentences, find out the adverbial of time Using language Present perfect passive adverbial of time : 标志词 词义 already 已经 yet 还 just 刚刚;正好 never 从未;从来没有 since then 自从那时起 since+过去时态 时间状语 自从...... recently 最近 during/over/in the past/last +时间段 在过去的......一段 时间 for+时间段 一段时间 Here are some common adverbial of time to apply the present perfect passive tense. Read it together. Using language Rewrite the underlined parts using the present perfect passive. Within the next 80 years, our lives may be changed beyond recognition by 3D printing. It has already affected many things in our lives, right down to the food we eat. For instance, some restaurants in London have served 3D-printed hamburgers to customers. But perhaps the most significant success that people have achieved to date is in medicine. They have made human body parts, including a beating heart, with 3D printing technology. And it is not just humans who are benefiting- in Brazil, people have given a new 3D-printed shell to a turtle injured in a forest fire. Practice the tense Lets practice the tense. Please rewrite the underlined sentences by using the present perfect passive. Four minutes for you Let’s check the answer. Using language Rewrite the underlined parts using the present perfect passive. Practice the tense It has already affected many things in our lives, right down to the food we eat. For instance, some restaurants in London have served 3D-printed hamburgers to customers. Many things in our lives have already been affected. 3D-printed hamburgers have been served to customers in some restaurants in London. Using language Rewrite the underlined parts using the present perfect passive. But perhaps the most significant success that people have achieved to date is in medicine. They have made human body parts, including a beating heart, with 3D printing technology. But perhaps the most significant success that has been achieved to date is in medicine. Human body parts, including a beating heart, has been made with 3D-printing techonology. Practice the tense Using language Rewrite the underlined parts using the present perfect passive. And it is not just humans who are benefiting- in Brazil, people have given a new 3D-printed shell to a turtle injured in a forest fire. A new 3D-printed shell has been given to a turtle injured in a forest fire. Practice the tense Using language Make a conversation: Imagine you are Dr Moore, your partner is the police. Look at the pictures and tell the police about the damage and loss to your lab. Use the present perfect passive where appropriate. Apply the tense Useful expressions: A: What can I do for you? B: I want to report a burglary(入室盗窃) in my lab. A: What’s your name? Your telephone number and address, please? B:I’m Dr Moore. My number is…My lab is.. A: OK, what's the matter? B: I just came back to find my lab in a mess Please look the three pictures Make a conversation: Imagine you are Dr Moore, your partner is the police. Look at the pictures and tell the police about the damage and loss to your lab. Use the present perfect passive where appropriate. You can use the useful expressions: 4 min for you to prepare. Using language The lock on the door has been unlocked. The window has been broken. Apply the tense Using language My two laptops have been stolen. Beakers and test tubes have been destroyed. Apply the tense Using language Present perfect passive The book case has been openend, and some files have taken away while others have been thrown everywhere. The robot has been damaged. Using language Homework 1.Exchange the roles and polish your conversation. 2.Write a diary to describe burglary that happened in your lab. Thanks for listening! Lavf58.20.100 $$