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
专升本
Trees are useful to man 【B1】______ three very important ways: they provide him 【B2】______ wood and other produces; they help to
Trees are useful to man 【B1】______ three very important ways: they provide him 【B2】______ wood and other produces; they help to
admin
2008-12-30
80
问题
Trees are useful to man 【B1】______ three very important ways: they provide him 【B2】______ wood and other produces; they help to check soil erosion and they help to 【B3】______ drought and floods.
【B4】______ , in many parts of the world, man has not realized that the 【B5】______ of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large 【B6】______ , only to find that 【B7】______ them he has lost the best friend he had.
Two 【B8】______ years ago a rich and powerful country cut down its trees to build warships 【B9】______ to gain itself an empire. It gained the empire, but without its trees, its soil became hard and poor. When the empire 【B10】______ to pieces, the home country found itself faced by floods and starvation.
【B11】______ a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this ,the villager wants wood to cook his food 【B12】______ ; and he can earn money by making charcoal or selling wood to the townsman. He is usually too lazy or too 【B13】______ to plant and look after new trees. So, 【B14】______ the government has a good system of control, or can educate the people, the forests slowly disappear.
This does not only mean that the villagers’ sons and grandsons have 【B15】______ trees. The results are even more serious; for where there are trees their roots break the soil up allowing the rain to sink in and also bind the soil, thus preventing 【B16】______ washed away on the surface, causing floods and carrying 【B17】______ ground away 【B18】______ it the rich top-soil, in which crops grow so well. When all the top-soil is 【B19】______ , nothing remains 【B20】______ worthless desert.
选项
A、although
B、once
C、until
D、unless
答案
D
解析
根据句子意思和逻辑可知这里含有条件意味,参见后面的or。
转载请注明原文地址:https://kaotiyun.com/show/TCLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
In1917,Russiawasinchaos.Theeconomywascollapsing,therewerefoodshortagesandthecountrywassufferingheavylossesi
Thefirstatomicbomb______.TheAmericansdroppedanatomicbomb______.
Whichofthefollowingisthemainpsychologicalsymptomofsmokerswhoquit?______.Whydoestheauthoroffertheexampleof
Historianscan’ttelluswhen,whereor【71】thefirstfoodwascooked.Inearliest【72】whenpeoplehadeatentheirfood【73】,
American【B1】______aresimilartoothercities【B2】______theworld.Ineverycountry,citiesreflectthevaluesofthe【B3】___
American【B1】______aresimilartoothercities【B2】______theworld.Ineverycountry,citiesreflectthevaluesofthe【B3】___
ThefollowingisthecontentsofabooknamedPublicRelations.Afterreadingit,youarerequiredtofindtheitemsequivalent
WashingtonIrvingwasAmerica’sfirstmanofletterstobeknowninternationally.Hisworkswerereceivedenthusiasticallyboth
Normallyastudentmustattendacertainnumberofcoursesinordertograduate,andeachcoursethatheattendsgiveshimacre
Thetaskofbeingacceptedandenrolled(招收)inauniversitybeginsearlyforsomestudents.Long【C1】______theygraduatefromhigh
随机试题
自发性气胸的最常见症状是
凝血酶的作用有
SMW挡土墙的特点主要表现在()。
矿业工程招标的工程量清单由措施项目清单、其他项目清单、规费项目清单、税金项目清单和()组成。
二手车是指从办理完机动车注册登记手续到规定报废年限()进行所有权变更并依法办理过户手续的汽车。
2016年8月,张某在杂志上发表一篇文章,取得稿酬5000元。下列关于张某发表文章应缴纳个人所得税税额的计算列式中,正确的是()。
CEEB分数是美国大学入学考试委员会使用的标准分数,其平均数和标准差分别为
Jonny:Hey!I’mjustpracticingTaiChi(太极).Wouldyouliketojoinme?Peter:Iknownothingaboutit.Isitdifficult?Jonny:
BossesSay"Yes"toHomeWorkA)Risingcostsofofficespace,timelosttostressfulcommuting,andaslowrecognitionthat
A、Shethinkswereallyneedtogivemoneytocharities.B、Shethinksthedonatedmoneyshouldbeadministered.C、Sheoftengives
最新回复
(
0
)