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
71
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.
According to the context, "it" in Paragraph One refers to
选项
A、public relations hit.
B、need for fertilizer and herbicides.
C、grass.
D、environmental disaster.
答案
C
解析
语义题。对指代关系的理解,应结合代词所在句的前后文,代词it所在句的上一句,叙述的中心词是grass,故本句中的its也是指grass,其间中心语并没有转换,因此代词it仍然是指grass,故C为答案。
转载请注明原文地址:https://kaotiyun.com/show/5KmK777K
0
专业英语四级
相关试题推荐
Accordingtothenews,whatareDefenseDepartmentofficialsexpectedtodoonFriday?
ThestatisticsI’vecitedandthelivingexamplesarealltoofamiliartoyou.Butwhatmaynotbesofamiliarwillbetheincre
Dr.Jonescheckedthepatient’s______carefullybeforemakinghistreatment.
ThefollowingdetailsarethereactionstothehugeincreasesinoilcompanyprofitsEXCEPT
Theyacceptthatwhatyouaredoingis______totheirproblems.
It’ssaidthemostexcitingkindofeducationisalsothemostpersonal.Nothingcan【C1】______thejoyofdiscoveringsomethin
Nowherebutinthecontinuousresearchwork______findthemeaningofhislife.
ManydeathsduringchildbirthcouldbepreventedbythefollowingmethodsEXCEPT
Inspiteof"endlesstalkofdifference,"Americansocietyisanamazingmachineforhomogenizingpeople.Thereis"thedemocrat
______Iamafraidofistheirtakinghimtosuchdangerousplace.
随机试题
医务人员正确的功利观不包括
机体调节酸碱平衡最迅速的途径是()。
分泌促胃液素的主要部位是
丁香药材的分泌组织是
[背景资料]某水库枢纽工程由大坝、溢洪道、引水洞和水电站组成。水库大坝为黏土心墙土石坝,最大坝高为70m。在工程施工过程中发生以下事件:事件一:为加强工程施工安全生产管理,施工单位根据《水利工程建设安全生产监督检查导则》(水安监[2011]475号),
关于极差,下列说法正确的有()。
甲公司从其控股股东处以现金4200万元收购乙公司60%股权,合并日乙公司可辨认净资产账面价值6000万元,公允价值8000万元,合并日甲、乙公司简要财务报表如下,其中甲公司资本公积2500万均为股本溢价,假定甲乙公司之间未发生内部交易,则甲公司合并日编制的
给定材料材料1正确对待来自组织、来自社会、来自群众的监督,习惯在“放大镜”和“聚光灯”下工作和生活,是对党员干部党性修养和组织观念的检验,也是新时代党员干部干事创业的内在要求。移动互联网时代,工作的一点一滴、生活的一言一行,都
下面是有关公开审理的一些说法,正确的是()。
设a0,a1,…,an-1是n个实数,方阵若λ是A的特征值,证明:ξ=[1,λ,λ2,…,λ]T是A的对应于特征值λ的特征向量;
最新回复
(
0
)