首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In my neighborhood in the early 1980s, we spent the summer playing kickball. Our front lawns were a constant. We took their soft
In my neighborhood in the early 1980s, we spent the summer playing kickball. Our front lawns were a constant. We took their soft
admin
2012-08-05
49
问题
In my neighborhood in the early 1980s, we spent the summer playing kickball. Our front lawns were a constant. We took their soft, grassy goodness for granted, until the lawn service arrived. Now and then, a tanker truck pulled up, and two men in coveralls sprayed who knows what all over our grass. Before they left, they put up little flags reminding us to keep off the lawn for 24 hours. For emphasis—or the pre-literate—the signs featured a skull and crossbones. In part because of those tanker trucks, grass has taken a major public relations hit. Its constant need for fertilizer and herbicides is supposed to make it an environmental disaster.
Grass is now the biggest crop in the Chesaeake Bay area, and will soon surpass all crops combined. Excess chemicals placed on lawns at the wrong time or carelessly scattered on impermeable surfaces can end up in the fragile bay. Excess fertilizer, to take just one example, contributes to eutrophication, which occurs when too many phosphates and nitrates build up in a body of water, feeding an explosion of algae. When the algae decompose in the bay, they use up much of the available oxygen, choking off crabs and other marine life.
So is it possible to be environmentally sensitive and have a good lawn? Yes, according to Frank Rossi, an associate professor of horticulture at Cornell University. It’s simple, he says. Once your grass gets going, here comes the really hard part if you’re trying to maintain a healthy lawn without chemical intervention; Leave it alone.
You read that right. According to Rossi, the biggest mistake people make is failing to control their impulse to intervene. They mow too short and too often. They water too much. They fertilize too frequently.
And, when things go bad, they break out massive amounts of chemicals to try to control the advancing weeds.
You should mow your grass to a height of three inches. And don’t mow it again for 10 days. Two weeks if you can stand it. As for fertilizer, do it twice a year, at most. But don’t even think about doing it in the early spring. As for watering, do it only once or twice a week. If mushrooms develop, you’re watering way too much—and wasting water. It’s better to give your lawn a good weekly soaking than to water a little every day.
One last tip: You don’t need perfectly uniform grass all the time. " This is a lot easier if you don’t try to make your lawn look like the center field at Nationals Stadium," cautions Rossi. In other words, if you can roll a kickball on it, you can be content.
Which of the following is the INCORRECT way to maintain a lawn healthy?
选项
A、Mow the grass when it is three-inch high.
B、Fertilize the lawn once a year.
C、Soak the lawn every week.
D、Suspend watering if mushrooms are found.
答案
A
解析
细节题。有关保养草坪的建议主要集中在第五段。作者建议大家割草的时候要留三英寸,而不是在草长到三英寸的时候就割,因此A是对原文的曲解,为本题答案。
转载请注明原文地址:https://kaotiyun.com/show/8KmK777K
0
专业英语四级
相关试题推荐
Weareflyingata(an)______of20,000feet.
Today,theworldwidewebcanbeusedbothto【C1】______informationandtomakeit【C2】______toothers.Information【C3】_____
Whatisthebesttitleofthepassage?
Stressisawordcommonlyfoundintoday’svocabulary,andisoftenusedtodescribemodernworkingandlivingpatterns,especia
TheUnitedStatesiswell-knownforits【C1】______ofmajorhigherhighwaysdesignedtohelpa【C2】______getfromoneplaceto
Janethaseventuallydecidedtogoona
Ifsustainablecompetitiveadvantagedependsonworkforce,skills,Americanfirmshaveaproblem.Human-resourcemanagementis
TheUnitedStatesConstitutionprovidesforacountofthepopulation______acensus,everytenyears.
Despitetechnicalprogress,somefoodproductionisstillcompletely______onweather.
All______atthepresenttimeisanurgentandrationaldecisionotherthanendlessdispute.
随机试题
属于常见甘油磷脂结构成分的物质
A.超极化慢电位B.去极化慢电位C.去极化快电位D.动作电位神经节细胞可产生
对于一级评价项目,下列哪些情况应绘制等声级线图?()
按所处的地位分,()属于从热源至热力站的供回水管网。
《统计法》规定的内容包括()。
信用申请者获得企业提供信用所必须达到的最低信用水平是()。
下列行为中,涉嫌违反我国《反垄断法》的是()。
Theauditoriumislargeenoughto______2,000peopleatleast.
在很多竞技体育项目中,运动员坚强的意志、顽强的精神是取得胜利的基础,只要顽强地拼搏,即使失败,也会赢得人们的尊敬。从哲学角度看,这种意志和精神体现了()。
TheobviousbeautyofsymmetryhaslongbeenanimportantconsiderationtoartistsandartisansworkingintheWesterntradition
最新回复
(
0
)