Unit1课文笔记以及答案课件2023-2024学年高中英语人教版2019选择性必修二

海海专 SCIENCE AND UNIT 1 SCIENTISTS 教折(2019) 选修第母Unit 1 Discuss the following stages of scientific research in groups.What order would you put them in? 分析结果 提出问题 得出结论 4 收集数挹 5 analyse the results ask a question draw a conclusion collect data find a problem 6 find supporting evidence 3 think of a method 材题及用乃一服 发现问题 找到证摇 想方法 现存时，表酮越 n the passage to see if the order you decided in Activity 1 was correct. 是个客观事笑， 药翰：斯诺战脏“置凯王 不名显疑 -JOHN SNOW DEFEATS "KING CHOLERA" Cholera used to be one of the most feared diseases in the world.until a British doctor.John Snow.showed how it could be overcome ness causes seyere.dehydration and even death.In 19th cehtun Youtbred cholero hit Europe.millions of people died from the disease.octor John Snow became because no one knew how to prevent or treat cholera.g time become a famous doctor,and even attegded to gave birth.However,he never lost his dee 那信destroy choleron 生 互相质 闹底地 doctors in those days had two contradicfory theories to explain how 肌6ood.0ne that bad air caused the disease.The other was that表语从问 cholera was caused bya Kiection tom germs in food or water.Snow subscribed to the second theory.It was correct.ne needed proot yently.when an outbreak of cholera hit London in 1854.Snow began to discovered[th司寰话从问 in two particular streets the cholera outbreak was so severethat than 500 people died in ten days,He was determined to find out why.."so-that.”导结果状话从句 头足 Snow began by marking on a map the exact where blcthose who died had lived.There eeawog装mpn Broad Strder especially house numr6.37. 38.and 40).However.some households (such as 20 and 21 Broad Street.andCambridge Street)hadhad no deaths.These people worked in the pub at 7 Cambridge Street.They had been given free beec and so had not drunk the water from the pump.Snow suspected that Part of Snow's Cholera Map 1 the water pump was to blame wW花more Note:-1 death PH:public house in another part of识克话oman and her 30.31...:numbers of houses 以平 daughter had died of cholera after m