Unit 3The wrld f science
T knw smething abut Alzheimer’s diseaseT learn sme listening skills t get useful infrmatinT tell a stry abut an inventin
View a vide t find ut what is Alzheimer’s disease (AD) (阿爾茨海默病，老年癡呆癥).
Inventin stries
Alzheimer’s disease is a brain disrder that causes prblems with memry, thinking and behaviur.The majrity f peple with Alzheimer’s are 65 and abve. It is recgnised as the mst cmmn mental disease amng lder peple, and the number f sufferers is grwing. Currently, there's n cure fr Alzheimer's, but scientists are researching ways t imprve the quality f life fr peple living with the disease.
If ne f yur clse relative has the Alzheimer’s disease, what can yu d t help him r her?
Listen t the cnversatin and number the pictures in the crrect rder.
Listen again and cmplete the ntes.
What is it?
Wh was it invented by?
It’s___________________________________________________________.
It was invented by_________________________called Kenneth.
a pair f scks designed fr peple with Alzheimer’s disease
a student frm New Yrk
Wh inspired the inventin?
__________________, wh has Alzheimer's.
Hw des it wrk?
__________________ is sent t a mbile phne like an alarm when the persn with it ____________________.
His grandfather
gets ut f bed
Nw talk abut hw the speakers describe the stry behind an inventin. Listen again if necessary.
Learning t learn
Exclamatry sentences express strng emtins, such as surprise, shck, jy, emphasis and excitement. These are usually frmed with what r hw, and in written frm usually end with an exclamatin mark.
Wrk in pairs. Act ut the cnversatin abut the inventin f the telephne.
Yu are ging t give a presentatin abut the inventin f the telephne. As part f yur research, yu speak t Student B wh has just read a bk abut it. Ask him/her questins t find ut mre infrmatin.
Infrmatin yu’d like t knw:the inventr year f inventinthe inventing prcessthe first phne callther interesting things abut the inventin
Wh was… invented?Hw was … invented?What was the first phne call abut?What ther interesting things…?
Useful expressins
Yu've just read a bk abut the inventin f the telephne.Student A, wh is ging t give a presentatin n the same tpic, asks yu fr infrmatin.
Inventr: Alexander Graham BellInventin created in: 1876
Backgrund: Bell was a teacher at a schl fr the deaf. He tried t invent a machine t send messages ver an electrnic wire. This eventually led t the idea f a telephne. Later, with his assistant, he created a device t prduce and receive sund waves using electrical signals.
First phne call: On 10 March 1876, Bell made the first clear and cmplete phne call t his assistant, saying, “Mr Watsn- cme here-I want t see yu.”
Other infrmatin: Bell never had a telephne in his study, where he wanted t be alne with his thughts and wrk.
The telephne was invented by… in…When…h(huán)e…He later… and finally…The first phne call was abut…It is interesting that…
Wrk in pairs. Chse anther stry f an inventin yu knw and have a similar cnversatin.
D yu knw hw were the smart phnes first invented? Wh invented them? Write a shrt passage abut it. Yu can surf the Internet fr necessary infrmatin.

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Unit 3 The world of science

版本： 外研版 (2019)

年級(jí)： 必修 第三冊(cè)

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