1、 Unit 3 The World of Science Period 2 Using LanguagesFor instance of great significance=very importantInjury nInjured adj accuracy n minority n original adj in theory in practice physical mentally illLearning aims:1.Review the grammar:the Present Perfect Passive and can use it correctly in different
2、 contexts.2.Learn about some careers and some famous scientists.3.Learn how to describe a story behind an invention according to listening materials.step 1Original sentences:现在完成时被动用法总结：现在完成时的被动语态强调过去的动作对现在造成的影响或结果现在完成时的被动语态强调过去的动作对现在造成的影响或结果,但主语为但主语为动作的承受者动作的承受者,表示表示“已经被已经被”。现在完成时被动语态的结构就是现。现在完成时被动
3、语态的结构就是现在完成时态和被动语态结构的叠合在完成时态和被动语态结构的叠合,即即“have/has been done”。1.They _(tell)many times not to make noises.他们被多次告知不要喧哗。他们被多次告知不要喧哗。2._ his bike _ _?他的自行车修好了吗他的自行车修好了吗?3.The books _ _ _ _by the students.那些书还没有被学生那些书还没有被学生们借走。们借走。part 1 Present Perfect Passivea I guess you have been asked about the tit
4、le of your book before.b New inventions like 3D printers have been used to make replacement hearts and bone parts.have been toldHasbeen repairedhave not been borrowed 拓展练习拓展练习1.The bridge _(build)last year.2.Great changes _(take)place in my hometown.3.So far,many villages _(visit).4.The party _ _ _(
5、plan)since the New Year.5.With the help of high technology,more and more new substances _(find)in the past few years.was builthave takenhave been visitedhas been plannedhave been foundstep 2Activity 2:Rewrite the underlined parts using the present perfect passive.part 1 Present Perfect Passive1.Many
6、 things in our lives have already been affected.2.For instance,3D-printed hamburgers have been served to customers in some restaurants in London.3.But perhaps the most significant success that has been achieved to date is in medicine.4.Human body parts,including a beating heart,have been made with 3
7、D printing technology.5.In Brazil,a new 3D-printed shell has been given to a turtle injured in a forest fire!1.The lock on the door has been broken.2.The window has been broken.3.My two laptops have been stolen.4.Beakers and test tubes have been destroyed.5.The book case has been opened,and some fil
8、es have been taken away while others have been thrown everywhere.6.The robot has been damaged.Activity 3:Imagine you are Dr Moore.Look at the pictures and tell the police about the damage and loss to your lab.Use the present perfect passive where appropriate.part 1 Present Perfect PassiveMy lab has
9、been broken into!My.Dr Moorepart 2 Careers in sciencephysicistmathematician chemistastronomer geographerbiologistLook at the pictures and answer the questions1.What do you know about these careers?A physicist is a person who does research connected with physics or who studies physics.A mathematician
10、 is a person who is trained in the study of numbers and calculations.A chemist is a person who does research connected with chemistry or who studies chemistry.An astronomer is a scientist who studies the stars,planets,and other natural objects in space.A geographer is a person who studies geography
11、or is an expert in it.A biologist is a person who studies or works in the field of biology.2.What famous scientists can you name in these fields?Activity 5:Complete the introductions about different scientists with the words in Activity 4.Pay attention to the language that describes their careerspar
12、t 2 Careers in science1.astronomer2.biologist 3.geographer4.physicist5.chemist6.mathematicians1.accurate:adj.准确的，精确的2.minor/planet3.name after:以.命名1.origin-original-originally2.species3.due to/natural selection1.do field research 做实地调研2.stream 溪流/along with3.surrounding adj.-surroundings1.award n.奖/
13、v.授予.奖2.work on 从事/be regarded as被认为.3.isolation n.-v.isolate隔离，分离1.theorem rm 数学定理2.make an advance towards 在.取得进展3.unsolved adj.未解的 theory 理论step 1:Leading inpart 3 Invention storiespart 3 Invention storiesstep 2Activity 7 Listen to the conversation and number the pictures in the correct order.abc
14、de43512part 3 Invention storiesstep 3Activity 8:Listen again and complete the notes.4.A warning5.gets out of bed1.a pair of socks designed for people with Alzheimers disease2.a student from New York3.His grandfatherMike:Hey,look!Ive read about a cool invention in this magazine!Anna:A pair of socks?M
15、ike:Yes,but theyre not ordinary socks.This is a product designed for people with Alzheimers disease.Anna:Oh yes,I saw a TV show about that.It was invented by a student from New York called Kenneth.He even won an award for it at a science fair!Mike:Wow!How did he come up with the idea?Anna:Well,his g
16、randfather has Alzheimers.He forgets things and gets lost easily.Once he got lost in the city and it took a whole day to find him!The family was always worrying about him leaving the house and had to keep an eye on him even at night!Kenneth had been trying to find a solution.Then one night,he was lo
17、oking after his grandfather and saw him get out of bed and step on the floor.That moment inspired him,and a good idea came to his mind.Mike:I didnt know that!How did that moment inspire him?Anna:Well,it made him think of putting a device into a pair of socks to sense pressure.He started by drawing h
18、is ideas,and then he thought about how to power the device.Eventually,he created a device the size of a coin!Mike:Like a coin?So how does it work?Anna:He got his grandfather to wear the socks.When his feet touched the floor,the device sensed an increase of pressure,and a warning was sent to the boys
19、 mobile phone like an alarm.That way,he could know his grandfather was getting out of bed without staying up all night.Mike:How amazing!What a useful invention and caring grandson!Anna:Yes,you are quite right.1.Review the usage of the Present Perfect Passive2.Review some careers in science and learn about some scientists.3.Review how to describe a story behind an invention according to listening materials4.Review important language pointspart 4 Conclusion
