选择性必修 第二册Unit 1 Science and Scientists示范课ppt课件

这是一份选择性必修 第二册Unit 1 Science and Scientists示范课ppt课件，共19页。PPT课件主要包含了单词检测，Para 1，Para 2，Para 3，Para 4，Para 5等内容，欢迎下载使用。

n.霍乱adj.极为恶劣的;十分严重的n.腹泻n.脱水adj.懊恼的;沮丧的;失意的adj.相互矛盾的;对立的
chleraseverediarrheadehydratinfrustratedcntradictry
n.感染;传染vt.使感染;传染n.微生物;细菌;病菌vi.认购(股份);定期订购n.证据;证明;检验adj.数量多的;多种多样的
infectininfectgermsubscribeprfmultiple
n.泵;抽水机;打气筒水泵n.一家人;家庭v.怀疑;疑有 n.犯罪嫌疑人vt.把…归咎于;责怪 n.责备n.把手;拉手 vt.处理;搬动
pumpwater pumphusehldsuspectblamehandle
n.介入;出面;干涉n.联系;纽带 vt.把…接起来adj.未煮的;生的;未经处理的adj.干净的;纯的;纯粹的adj.大量的;价值巨大的n.减少;降低;减少量 v.减少
interventinlinkrawpuresubstantialdecrease
n.[pl.]统计数字;统计资料vt.使改观 vi.改变;转变n.流行病学n.显微镜
statistictransfrmepidemilgymicrscpe
Chlera used t be ne f the mst feared diseases in the wrld, until aBritish dctr, Jhn Snw, shwed hw it culd be vercme. This illness causes severe diarrhea , dehydratin, and even death. In the early 19th century, when an utbreak f chlera hit Eurpe, millins f peple died frm the disease. As a yung dctr, Jhn Snw became frustrated because n ne knew hw t prevent r treat chlera. In time, he rse t becme a famus dctr, and even attended t Queen Victria when she gave birth. Hwever, he never lst his desire t destry chlera nce and fr all.
1. used t be2. an utbreak f3. die frm 4. becme frustrated5. attended t6. in time7. give birth8. lse desire t9. nce and fr all
过去常常是...的爆发死于变得沮丧照顾，护理经过一段时间之后，迟早生孩子失去做某事的希望最终地，彻底地
Para 1 phrases
In general, dctrs in thse days had tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. It was crrect, but he still needed prf . Cnsequently, when an utbreakf chlera hit Lndn in I854, Shw began t investigate. He discvered that in tw particular streets the chlera utbreak was s severe that mre than 500 peple died in ten days. He was determined t find ut why.
1. In general2. tw cntradictry theries3. germs in fd r water 4. subscribe t5. be determined t d6. need prf7. began t investigate8. find ut why9. in tw particular street
总的来说，大体上两种相矛盾的观点食物或水中的细菌同意决定做某事需要证据开始调查查明原因在两条特定的街道
Para 2 phrases
Snw began by marking n a map the exact places where all thse wh died had lived. There were multiple deaths near the water pump in Brad Street (especially huse numbers I6, 37. 38, and 40). Hwever, sme husehlds (such as 20 and 21 Brad Street, and 8 and 9 Cambridge Street) had had n deaths. These peple wrked in the pub at 7 Cambridge Street. They had been given free beer. and s had nt drunk the water frm the pump. Snw suspected that the water pump was t blame.
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. As a result f this evidence, Jhn Snw was able t annunce that the pump water carried chlera germs. Accrdingly, he had the handle f the pump remved s that it culd nt be used. Thrugh this interventin, the disease was stpped in its tracks.
1. mark n a map the exact place2. multiple deaths3. be t blame 4. as a result f this evidence5. be stpped in its track6. free beer7. mve away frm8. it seemed that
在地图上标出特定的位置数量多的死亡应受责备由于这个证据在它的传播轨道上被停止免费的啤酒从..离开、搬离似乎
Para 3 phrases
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. Sme cmpanies sld water frm the River Thames that was plluted by raw waste. The peple wh drank this water were much mre likely t get chlera than thse wh drank pure r biled water.
事实是宽街水泵的水被废弃物污染了。此外，斯诺后来还证明了其他霍乱病例与伦敦自来水公司有关。一些公司出售的来自泰晤士河的未经处理的废弃物污染的水。喝这水的人，比喝纯净水或白开水的人，更容易感染霍乱。
1. be infected by waste2. be plluted by raw waste3. drink pure r biled water 4. water cmpanies5. ther cases f chlera6. be likely t d
被废弃物感染被未经处理的废物污染喝纯净水或未煮沸的水供水公司另外的霍乱案例可能做某事
Para 4 phrases
Thrugh Snw's tireless effrts, water cmpanies began t sell clean water, and the threat f chlera arund the wrld saw a substantial decrease. Hwever, chlera is still a prblem. Each year, millins f peple arund the wrld get chlera and many die frm it. Frtunately, we nw knw hw t prevent chlera, thanks t the wrk f Jhn Snw. Mrever, in his use f maps and statistics, Snw transfrmed the way scientists study diseases. Fr this reasn, Snw is cnsidered the father f mdem epidemilgy