Some people think they have right to use as much fresh water as they want, others, otherwise believes governments should strictly control the use of fresh water as it is limited resource. Discuss both views and give your own opinion.
Some languages are increasing in use, while many others are declining. Do you think this is a positive or negative development?
比如可以上下分的电玩软件说在剑桥7 Test1 Passage1中，文章的标题捕鱼电玩上下分是Making every drop count, 说的就是要节约用水，有很多词汇可以摘抄：manipulate water resource/ innovative layout of pipes and well-built sewers/ despite our progress, half of the world’s population still suffer/ more than one billion people lack access to clean drinking water/ some two and a half billion do not have adequate sanitation services/ the consequence of our water policies extend beyond jeopardizing human health/ more than 20% of all fresh water fish species are now threatened or endangered because dam and water withdrawals have destroyed the free-flowing river system
异样，针对第二道标题，剑桥4 Test2 Passage1也可认为烤鸭们供给很多有效的词汇：the native language is dying/ most of speakers are mid-aged or elderly/ Navajo is far from alone./ half of the world’s 6800 languages are likely to vanish within two generations/ never before has the planet’s linguistic diversity shrunk at such a pace / it was a mass extinction/ Navajo is considered endangered despite having 150,000 speakers
缘由：Navajo is considered endangered despite having 150,000 speakers. What makes a language endangered is not just the number of speakers, but how old they are. If it is spoken by children, it is relatively safe. The critically endangered languages are those that are only spoken by the director of the …/ why do people reject the languages of their parents? It begins with a crisis of confidence when a small group finds itself alongside a larger, wealthier society/ people lose faith in their culture/ they can not refuse to speak English if most commercial activity is in English…
消极影响：Language is also bound up with culture, so it is difficult to preserve one without the other. /the loss of diversity may also deprive us of different ways of looking at the world.
保护它们：Preservation can bring a language back from the dead/ they are examples of languages that have survived in written form and then been revived by later generations.
请看所带来的成绩：yet there is a dark picture/ more than one billion people lack access to clean drinking water/ preventable water-related disease kill an estimated 10,000 children every day/ more than 20% of all fresh water fish species are threatened or endangered because dams and reservoirs have destroyed the free-flowing river system where they thrive/ groundwater aquifers are being pumped down faster than they are naturally replenished
相干办法：people have figured out how to use water efficiently/ thanks to a range of technologies that help to conserve water in homes and industry/ communities are rethinking their priorities for water use