高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教学演示课件ppt

这是一份高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教学演示课件ppt，共31页。PPT课件主要包含了Review ，Warm up ，SP 主系表 ，Summary 1，Summary 2 ，what，as if ，that，whether，whichwhat等内容，欢迎下载使用。

Learning bjectives
In this class, yu will1. identify and summarize the frm f the predicative clause;2. get t knw the meaning f the predicative clause;3. use the predicative clause t talk abut science and scientists.
What kind f persn is Jhn Snw? Jhn Snw is smart. Jhn Snw is determined. Jhn Snw is cmmitted. …
1. Jhn Snw is determined. 2. One thery was that bad air caused the disease.
predicative (表语)
predicative clause (表语从句)
SP 主(系)表
Find and underline the predicative clauses.
It seems that science is all arund us. Understanding science and pushing the bundaries f science is what makes me satisfied.

Linking verbs 状态类：be 动词, seem, appear, keep, remain, stay …感官类：lk, smell, taste, sund, feel …变化类：becme, get, turn, grw, fall, cme, g …
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 2 In general, dctrs in thse days had tw cntradictry theries … One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. …
……空气污染引发霍乱。
……食物或饮用水中的细菌感染导致霍乱。
Para. 3 … What is mre, in anther part f Lndn, a wman and her daughter had died f chlera after mving away frm Brad Street. It seemed that the wman liked the water frm the pump s much that she had it delivered t her huse every day.
该女士似乎非常喜欢从水泵抽上来的水，每天都让人从那里打水运到家里来。
Para. 4 The truth was that the water frm the Brad Street pump had been infected by waste. Mrever, Snw was later able t shw a link between ther cases f chlera and the different water cmpanies in Lndn. …
……宽街水泵抽上来的水被废弃物污染了。
Activity 2: Answer the fllwing questins using the infrmatin frm the reading passage as well as the predicative clauses.
Example What was it that Jhn Snw shwed t the wrld? What Jhn Snw shwed t the wrld was __________________________.
hw chlera culd be vercme
hw 意思为“如何”，在表语从句中充当状语
1. What was Snw’s discvery in tw particular streets in Lndn? Snw’s discvery in tw particular streets in Lndn was _____________________________________________ _____________________________________________
that the chlera utbreak was s severe that mre than 500 peple died in ten days.
that 无意义，在表语从句中不充当成分, 起连接作用，不能省略
2. What was Snw determined t find ut during the 1854 utbreak f chlera in Lndn? What Snw was determined t find ut was ____________________________________________ ____________________________________________
why the utbreak f chlera had caused ver500 deaths within ten days.
why 意思为“……的原因”，在表语从句中充当状语
3. What were the exact places Snw marked n the map? The exact places Snw marked n the map were ______________________________
where all thse wh died had lived.
where 意思为“……的地点”，在表语从句中充当状语
4. What was the finding that Snw annunced? Snw’s finding was ____________________________________
that the pump water carried chlera germs.
1. What Jhn Snw shwed t the wrld was hw chlera culd be vercme.2. The exact places Snw marked n the map were where all thse wh died had lived.3. Snw’s finding was that the pump water carried chlera germs.
Activity 3: Cmplete David’s lines (A-E), using the wrds in the bx.
as if that what wh when hw why whse which whether
A Abslutely. Yu may nt believe it, but that was _____ happened at the initial stage f ur grup’s research n develping a vaccine fr malaria.
B Yes, it is. And it seemed _____ all the theries were useful, but the fact was _____ we culdn’t persuade ne anther that ne thery was better than anther. C Exactly. The prblem was nt abut ________ all ur theries were equally gd, but in deciding ________________ thery t depend upn.
which/what/whse
D We realised that what we cared abut was nt _________ aspect we needed t develp a thery in, but rather _____ we can reduce the cst f a vaccine withut reducing its effect! E Yu’re right. At last, we became fcused n the key issue, which was _______ we had t carry ut the research in the first place.
Activity 3 : Put David’s lines in the crrect rder and practise the cnversatin.
Maria: This mix f thery and data is ne f the key characteristics f what we call science. David: ________________________________________
A (Abslutely. Yu may nt believe it, but that was what happened at the initial stage f ur grup’s research n develping a vaccine fr malaria.)
Maria: With yur theretical framewrk? David: ________________________________________
C (Exactly. The prblem was nt abut whether all ur theries were equally gd, but in deciding which/what/whse thery t depend upn.)
Maria: Deciding n a thery is definitely f critical imprtance. David: ________________________________________
B (Yes, it is. And it seemed as if all the theries were useful, but the fact was that we culdn’t persuade ne anther that ne thery was better than anther.)
Maria: This was when yu shuld have calmed dwn and gt dwn t ding sme slid wrk.David: ________________________________________
E (Yu’re right. At last, we became fcused n the key issue, which was why we had t carry ut the research in the first place.)
Maria: S what happened in the end? David: ________________________________________
D (We realised that what we cared abut was nt which/what aspect we needed t develp a thery in, but rather hw we can reduce the cst f a vaccine withut reducing its effect!)
Activity 4 : Fill in each blank with a wrd r expressin that intrduces a predicative clause. (page 10)
What is the passage abut? It is abut science and scientist.
Science is simply _______ yu can d. And ding science makes yu a scientist! S, what d scientists d? Actually, what matters is nt nly _______ they bserve in the wrld arund them and what questins they ask, but als _______ they use evidence r data t answer the questins. They identify useful data and take new measurements. Sme f the key issues that scientists face are _______ calculatins
they d and _______ they analyse their data t draw cnclusins abut the questins they ask. The final issue, which many believe t be the mst imprtant, is _______ they need t cmmunicate their results. This is _______ they want everyne t benefit frm their wrk! It seems _______ science is all arund us. Yu see, by ding science, scientists get a better understanding f the wrld arund them and share that understanding with the whle wrld.
1. Finish Activity 1 n page 62.2. Finish Activity 2 n page 62.