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1、Section Warming up & ReadingPrereading Step One：Warming up .Do you know other scientists？The following is a quiz and lets find out who knows the most.1Which scientist discovered that objects in water are lifted up by a force that helps them float?答案：B2. Who wrote a book explaining how animals and pl
2、ants developed as the environment changed?答案：C3Who invent the first steam engine?答案：A4. Who used peas to show how physical characteristics are passed from parents to their children?答案：B5Who was the painter that studied dead bodies to improve his painting of people?答案：B6Who put forward a theory about
3、 black holes?答案：A.Do you know how to prove a new idea in scientific research？There are seven stages.Put them in the right order.() Make a question() Analyse the results() Draw a conclusion() Collect results () Find a problem() Think of a method() Find supporting evidence答案：2,5,7,4,1,3,6Step Two：Fast
4、 Reading .Whats the main idea?The text is mainly about how John Snow defeated a deadly disease_.答案：cholera.Read the text and match each paragraph with its main idea.Para.1()AJohn Snows suggestions for preventing choleraPara.2() BAn analysis of John Snows mapPara.3() CExtra evidence showing that poll
5、uted water carried the virusPara.4() DTwo theories possibly explaining how cholera killed peoplePara.5() EA brief introduction to John Snow and choleraPara.6() FJohn Snow found the cause of the disease.Para.7() GJohn Snow began to gather information to prove the second theory was correct.答案：1.E2.D3.
6、G4.B5.F6.C7.AStep Three：Careful reading Read the text and choose the best answer according to the text.1What inspired John Snow according to the first paragraph?ABeing Queen Victorias personal physician.BFinding where cholera happened.CHelping ordinary people who suffered from cholera.DHe was an exp
7、ert.答案：C2Whats the use of John Snows map in his research?ATo help him find the number of dead people.BTo help him not lose his way.CTo help him find the reason of the cholera outbreak.DTo help him where the cholera happened.答案：C3Another title of the text might be_.AJohn Snow and choleraBThe discover
8、y of choleraCJohn Snow：a great scientist DThe reason of cholera答案：A4From the first paragraph，we can learn that John Snow_.Awas the only doctor to be interested in medical researchBliked to make friends with famous peopleCshowed much concern for ordinary peoples safetyDdidnt hold much hope for findin
9、g out the cause of the disease答案：C5According to the passage，we can learn that_will play a great part in carrying out research successfully.Apeoples supportBthe previous experienceCmoney Dproper methods答案：DStep Four：Summary Read the text (P2 & P3) carefully and fill in the blanks.Stage 1Find a proble
10、mA large number of people died of cholera，but neither its 1._nor its 2._was understood.Stage 2Make a questionTheory one：Cholera 3._in the air and floated around until it found its 4._.Theory two：When people absorbed cholera into their bodies with food，their bodies were 5._.Stage 3Think of a methodJo
11、hn Snow began to gather information to prove that the 6._theory was correct.Stage 4Collect resultsJohn Snow marked locations of the dead people on a map.Stage 5Analyse the resultsJohn Snow looked into the cause of the disease to see if the cause was the 7._from the pump.Stage 6Find supporting evidencePeople 8._cholera after drinking the polluted water.Stage 7Draw a conclusion Polluted water carried the 9._.The source of all the water supplies should be 10._.谢谢观看！谢谢观看！
