Question

2．Bottled water has become the choice for people who are healthy and thirsty．Bottled water is all over the world．But some say the planet's health，and people's health may be suffering from it．
The idea that bottled water is safer for humans may not be true．The Natural Resources Defense Council of America said，"There is no promise that because water comes out of a bottle，it is cleaner or safer than water from the tap．"Another New York City-based action group added that some bottled water is"really just tap water in a bottle-sometimes more clean，sometimes not．"

It is not proven that bottled water is better than tap water．Nick Reeves from the Chartered Institution of Water and Environmental Management said，"The high mineral content （含量） of some bottled water makes them not good for feeding babies and young children．"Also，most bottled water doesn't have fluoride （氟化物），which can make teeth stronger．Kids are drinking more bottled water and less fluoridated tap water，and some say that's behind the recent rise in bad teeth．
Storing is another problem．Placed near heat，the plastic bottles can produce bad chemicals （化學物質(zhì)） into the water．
According to the Environmental Protection Agency，some 2.7 million tons of plastic are used worldwide to bottle water each year．The plastic can take between 400 and 1，000 years to break down．
In terms of energy use，plastic bottles are also not cheap．One report said that if water and soft drink bottlers had used 10 percent recycled materials in their plastic bottles，they would have saved about 72 million gallons of gas．
So，if you are worried about the effect of bottled water on the Earth，you can take the following steps．
●Drink from your tap．Unless your government warns against this，it should be fine．
●Get a container （容器）．Carry your tap water in a steel or a lined drinking container，and clean it between uses．
●Keep it cool．Don't drink from a bottle that has been sitting in the sun，don't store it near chemicals，and don't reuse plastic bottles．
●Choose glass containers over plastic if possible．When finished，recycle!
48．What is the main idea of the article？D
A．Drinking tap water is the only choice for people．
B．Glass containers are better than plastic bottles．
C．Plastic bottles are harmful to the environment．
D．Bottled water may not be as good as we think．
49．What can we learn about plastic bottles from the article？C
A．They break down in less than 300 years．
B．They can be used for many other things．
C．They are a risk to the environment．
D．They are cheap to make．
50．According to the article，we can know that bottled water isB
A．no problem for the environment       
B．more expensive than tap water
C．a(chǎn)lways safer than tap water           
D．better for babies
51．Which of the following about tap water is NOT mentioned in the article？A
A．There are a lot of problems storing tap water．
B．Bottled water can be just tap water in a bottle．
C．It may be better for your teeth．
D．It may contain fluoride．

Answer 1

分析 本文所以說明文閱讀，作者通過這篇文章向我們主要講述了如今全世界都在使用瓶裝水，但是瓶裝水給我們來了方便的同時，也給我們健康和地球的環(huán)境帶來了許多的問題．

解答 48．D  主旨大意題．文章主要講述瓶裝水所給地球帶來的各種環(huán)境上的問題，瓶裝水并非我們所想象得那么的好，故選D．
49．C  細節(jié)理解題．根據(jù)文章第五段According to the Environmental Protection Agency，some 2.7 million tons of plastic are used worldwide to bottle water each year．The plastic can take between 400 and 1，000 years to break down．可知塑料瓶對環(huán)境有害．故選C．
50．B  細節(jié)理解題．根據(jù)文章第六段In terms of energy use，plastic bottles are also not cheap．可知瓶裝水并不便宜．故選B．
51．A  細節(jié)理解題．根據(jù)文章倒數(shù)幾段可知自來水的好處，B、C、D符合文章的敘述，而文中并沒有提到自來水儲存的問題，故選A．

點評 考查學生的細節(jié)理解和推理判斷能力．做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確選擇．在做推理判斷題時不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．