500吨日本沼虾养殖项目可行性研究报告(编辑修改稿)

500吨日本沼虾养殖项目可行性研究报告(编辑修改稿)内容摘要：

thei r pl ans i n advance can get the group adm i si on. For anyone i ng from out of town, Futuroscope has m any excel ent hotel s nearby, m ost of whi ch provi de a shutl e servi ce to the park. If dri ving, Futuroscope i s withi n easy reach of freway. Plan your tri p wel l before starti ng, si nce Futuroscope i has so m any shows, acti vi ti es and great souveni r shops that i t i s di ffi cul t to see them al l. Com e ready to wal k a l ot – be sure to wear som e fortabl e sneakers or other wal ki ng shoes. The Pol ynesi an Cul t ural Cent er Som e them e parks are not onl y am usi ng but al so educati onal . Take the Pol ynesi an Cul tural Center (PCC) i n H awai i for exam ple. It not onl y shows vi sitors the Pol ynesian way of li fe but al so protects thei r skil ls and cul ture for the future. Pol ynesi a i s the nam e gi ven to m any groups of smal i slands that are spread about the Paci fi c O cean. The PCC i s set i n 42 acres of beauti ful countrysi de where visi tors can see seven di fferent tradi tional Pol ynesi an i sl and vil lages. Vi l agers from many i sl and m uni ti es e to show visi tors thei r styl es of dress and di ferent customs. For exam pl e, you can see di fferent skil l s of the vil lagers. You can l earn how they m ake clothes from bark and how they cl im b very tal l trees with thei r bare feet or see what ki nd of weddi ng cerem oni es they have. They also tel you about thei r soci al custom s and show you thei r cooki ng m ethods and thei r dances. Thei r m ost i mportant ski l i s boatbuil ding, whi ch al l owed the i sl anders to expl ore al the i sl ands i n the Polynesian Tri angl e. We know that i n thei r hi story they were sea travel l ers m ovi ng from i sland to i sland. They were abl e to fi nd thei r way usi ng the sm el of the wi n, the m ovem ents of the fi sh and seaweed, and the hei ght and di rection of the waves. They were very cl ever sai l ors. Now they use those boatbui l di ng skil ls to m ake l ong boats and show the races and the battl es that they took part in l ong ago. Al thi s hel ps keep the skil l s and the technol ogy of the i sl and peopl e al i ve. 必修五 Uni t 1 JOH N SNOW DEFEATS “KING CHOLERA John Snow was a fam ous doctor i n London—so expert, i ndeed, that he atended Queen Victori a as her personal physi ci an. But he becam e i nspi red when he thought about hel pi ng ordi nary peopl e exposed to chol era. Thi s was the deadl y di sease of i ts day. N ei ther its cause nor i ts cure was understood. So many thousands of teri fi ed peopl e di ed every tim e there was an outbreak. John Snow wanted to face the chal enge and solve thi s probl em. H e knew that chol era woul d never be control ed until i ts cause was found. H e becam e i nterested i n two theori es that possi bl y expl ai ned how chol era kil ed peopl e. The fi rst suggested that chol era m ul tipli ed i n the ai r. A cl oud of dangerous gas fl oated around unti l it found i ts victim s. The second sugested that peopl e absorbed thi s di sease i nto their bodi es wi th thei r m eal s. From the stom ach the di sease qui ckl y attacked the body and soon the affected person di ed. John Snow suspected that the second theory was corect but he needed evi dence. So when another outbreak hi t London i n 1845, he was ready to begi n his enqui ry. As the disease spread qui ckl y through poor nei ghborhoods, he began to gather i nform ati on. In two parti cul ar streets, the cholera outbreak was so severe that m ore than 500 peopl e di ed i n ten days. H e was determ i ned to fi nd out why. Fi rst he m arked on a m ap the exact pl aces where al l the dead peopl e had li ved. Thi s gave him a val uabl e cl ue about the cause of the di sease. Many of the deaths were near the water pump i n Broad Street (especi al l y num bers 16, 37, 38 and 40) . He al so noti ced that som e houses (such as 20 and 21 Broad Street and 8 and 9 Cam bri dge Street) had had no deaths. H e had not foreseen thi s, so he m ade further i nvesti gati ons. H e di scovered that these peopl e worked i n the pub at 7 Cam bri dge Street. They had been gi ven free beer and so had not drunk the water from the pum p. It seem ed that the water was to bl ame. N ext, John Snow l oked i nto the source of the water for these two streets. He found that i t cam e from the river pol uted by the di rty water from London. H e im medi atel y tol d the astoni shed peopl e i n Broad Street to rem ove the handle from the pum p so that i t coul d not be used. Soon afterwards the di sease sl owed down. H e had shown that chol era was spread by germ s and not i n a cl oud of gas. In another part of London, he found supporti ng evi dence from two other deaths that were li nked to the Broad Street outbreak. A wom an, who had m oved away from Broad Street, li ked the water from the pum p so m uch that she had i t deli vered to her house every day. Both she and her daughter di ed of chol era after dri nki ng the water. Wi th thi s extra evi dence John Snow was abl e to anounce wi th certai nty that pol uted water carri ed the vi rus. To prevent this from happeni ng agai n, John Snow suggested that the source of al the water suppli es be exami ned. The water pani es were i nstructed not to expose peopl e to pol l uted water any m ore. Fi nal l y ―Ki ng Chol era‖ was defeated. COPERNICUS’ REVOLUTIONARY TH EORY Ni col aus Coperni cus was fri ghtened and hi s mi nd was confused. Al though he had tri ed to i gnore them, al hi s m athem ati cal cal cul ati ons led to the sam e conclusi on: that the earth was not the centre of the sol ar system . O nl y i f you put the sun there di d the m ovem ents of the other pl as i n the sky m ake sense. Yet he coul d not tel anyone about hi s theory as the powerful Christi an Church woul d have puni shed hi m for even suggesti ng such an i dea. They beli eved God had made the worl d and for that。