下列各组溶液中的两个反应,可用同一离子方程式表示的是( ) A . CaCO3和HCl、Na2CO3和HCl B . BaCl2和H2SO4、Ba(OH)2和H2SO4 C . HNO3和K2CO3、HCl和NaHCO3 D . KOH和H2SO4、Ba(OH)2和HNO3 答案:D7、Downing the last drop of an expensive famous brand H2O
as well as remembering to throw the empty bottle in the recycling bin, makes
you feel pretty good about yourself, right? It shouldn’t. Even when the bottles are recycled,
there are all kinds of other consequences of swallowing bottled water, says
Melissa Peffers, the air-quality program manager for Environmental Defense.
The containers are often filled in
faraway lands, then shipped from abroad, and stored in refrigerators at your
local store. Compare that with the influence on environment of turning on your
tap, filling a glass, and drinking up!
Anyone who is choosing bottled
water for health reasons is misguided, says Peffers, “Most bottled water is just tap
water.” And what comes out of your tap is carefully
monitored to follow the strict rules. Consider another fact that bottled water
is surprisingly expensive, especially when compared with the alternative, which
is almost free, and it is astonishing that America’s
desire for bottled water seems impossible to satisfy, reaching nearly 30
billion bottles a year.
“My parents’ generation never had bottled water,” says
Isabelle Silverman, an Environmental Defense legal adviser. She has made a
commitment to going bottle free. “You don’t need to fetch it home from the store, and it’s cheaper,” she adds.
Bottled water’s role as a status symbol needs to
change, Peffers points out. So when a waiter at an expensive restaurant offers “And what’s your drink?” that’s no reason to forget your conviction(信念). “Don’t be afraid
to say, ‘I’ll have tap.’ Say it loud enough that the other tables nearby can hear you,” Peffers says. “And then spend that money on
a dessert.”
1.In the first paragraph, the underlined sentence “It shouldn’t.”
suggests that people _______.
A.shouldn’t
feel pleased with finishing the water in the bottle
B.shouldn’t feel good about drinking an expensive brand H2O
C.shouldn’t be content with just recycling empty bottles
D.shouldn’t be satisfied with drinking only bottled water
2.According to the author, tap water is _______.
A.as safe as bottled
water
B.morel likely to be
polluted
C.healthier than bottled
water
D.less convenient than
bottled water
3.The underlined part “going
bottle free” (in Para.4) means “_______”.
A.making bottled water
free
B.abandoning bottled
water
C.recycling used water
bottles
D.providing free water
containers
4.Why does Peffers ask people to say “I’ll have tap.”
loudly?
A.To encourage them to set an example
for others to follow.
B.To advise them to save
the money for one more dessert.
C.To remind them to be
aware of their social status.
D.To persuade them to
speak confidently in public.