6．As a well-known doctor in London.John Snow was willing to help ordinary people(61)exposed to chole——青夏教育精英家教网——

6．As a well-known doctor in London，John Snow was willing to help ordinary people（61）exposed （expose） to cholera（霍乱）．He knew that only when （62）the cause of it was found could the （63）deadly（dead） disease be controlled．He has two theories in mind explaining how cholera killed people．（64）Onewas that cholera multiplied in the air without reason； the other was（65）that people absorbed it into their bodies （66）with their meals．After many
（67）failures（fail），he succeeded in finding that the drinking water was to blame because the river （68）had been polluted（pollute）．Without delay John Snow told the people to remove the handle from the water pump （69）so that it could not be used．Soon the disease began to slow down．To prevent the disease from （70）happening（happen） again，the water companies were instructed not to expose people to polluted water any more．Finally"King Cholera"was defeated．

5．Fabien Cousteau was born with deep love for the ocean．His grandfather and his father were ocean （41）explorers （explorer） and documentary filmmakers．Today，Fabien follows in his family's footstep to protect the planet's （42）endangered （danger） ocean life and tries （43）to strike （strike） a balance between environmental problems and market economies．
Fabien is well known for his study of sharks．During 2000-2002，he created a TV special based on the shark attacks that （44）occurred（ occurr） along the New Jersey shoreline in 1916．Then in 2003-2006，（45）with the help of a large crew，Fabien created a shark submarine that enabled（ 46）him（he） to put himself inside the shark world，providing people with a rare view of the mysterious and often misunderstood creatures．
For the next four years，Fabien was part of a series called Ocean Adventures，（47）which offered a rare look into some of the most fantastic ocean species and environments．
In 2010，Fabien started a nonprofit project to help restore water ecosystems by replanting key ocean species．From June 1to July 2，2014，Fabien and his team spent 31days underwater to discover （48）how climate change and pollution are affecting the oceans．Fabien's Mission 31broke new ground by going deeper，longer and farther．
Fabine is （49）currently（ current） working on a documentary film about the adventures of Mission 31，as well as （50）building （build） an Ocean Learning Center to provide children around the world with the opportunity to learn about oceans．

4．她下定决心之后会告诉我们她的选择的．
She will tell us about her choiceafter she makes up her mind．

3．我和我的同学们相处得很好，我们已经成为好朋友了．
I'mgettingalongwell/Igetalongwellwithmyclassmates and we have become good friends．

2．Tom问这本书是属于谁的．
Tom askswho/whomthisbookbelongsto/whosebookitis．

1．我们老师总是让我们使用字典．
Our teacher alwaysasks/tells usto makeuseof dictionaries．

20．救援人员为那些家园被毁的幸存者盖起了避难所．
Rescue workers built shelters for survivorswhose homes had been destroyed．

19．Mary是一个总是愿意帮助他人的热心女孩儿．
Mary is a warm-hearted girlwho/thatisalwayswillingto/wouldliketohelpothers．

18．Nowadays many singers and bands have little to do with good music．They know little about（61）what good music means．What is the cause？
So far most of these singers have （62）seen（see） music as a"job"because it is a good source of making money．And if you have a good appearance and expensive clothes to show off at your concerts then your voice is not （63）as/so important as it should be．The public will prefer to admire more the most interesting parts of your body and even forget that you are there to （64）show（show） your music skills，not your dancing，which is important too，but not at such （65）a high level．
Therefore，many young girls on TV choose to wear the most provocative （挑逗性的） clothes to catch attention，（66）but when it comes to （67）singing（sing），they are in a complete mess and one doesn't need to have an ear for music to notice their lack （68）oftalent．
However，the young generation should understand talent and a good voice matter more in their musical career．All the performances（69）that have little to do with good music fail to be welcomed on stage．If a young man has a great voice and wants to become a （70）successful （success） singer，he should take some special courses in this area because they will help him improve singing abilities．

17．Polar bears are suffering in a （61）warmer （warm） world．
Polar bears live in environments too cold for most animals．（62）For/Duringmuch of the year，they live and hunt on the frozen Arctic sea ice．Nature has prepared（63）themfor the cold conditions．But nothing has prepared the bears for the danger that（64）threatens（threat） the only home they know．
The polar bears'world is melting．Studies show that the polar ice has reduced by 9.8% every 10 years（65）since1978．Now about 20，000to 25，000polar bears live in the Arctic．Polar bears depend on the sea ice for their（66）survial（survive）．"The sea ice is more than just this platform that the bears walk over，"says Andrew Derocher，（67）ascientist who studies North American polar bear populations．"（68）Withoutit，they can't exist．"
Some melting and refreezing of the polar ice is natural．（69）Butin a warmer world，these cycles speed up，and bears have less time to hunt．Normally，they have three months in the spring when they gain more weight．The extra fat is used later，（70）whenthe bears are not actively hunting．

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