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
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths
admin
2010-06-30
48
问题
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths than any other types of cancer. A major cause of the disease is not 【21】______ known; there is no 【22】______ evidence that screening is much help; and treatment 【23】______ in about 90 percent of all cases, at present, therefore, the main strategy must be 【24】______ . This may not always be true, of course, as for some other types of cancer, research 【25】______ the past few decades, has suggested some importance in prevention, screening or treatment. 【26】______ , however, we consider not what research may one day offer but what today’s knowledge could already deliver that is not being delivered, then the most practicable and cost-effective opportunities for 【27】______ premature death from cancer, especially lung cancer, probably involve neither screening nor improved treatment, 【28】______ prevention.
This conclusion does not depend on the unrealistic assumption that we can 【29】______ tobacco. It merely assumes that we can reduce cigarette sales by raising prices or by 【30】______ on the type of education that already appears to have a 【31】______ effect 【32】______ cigarette assumption by white collar workers and that we can substantially reduce the amount of tar 【33】______ per cigarette.
The practicability of preventing cancer by such measures applies not only in those countries, such as, the United States of America, because cigarette smoking has been common for decades, 25 to 30 percent of all cancer deaths now involves lung cancer, but also in those where it has become 【34】______ only recently. China is a good example. Countries where cigarette smoking is only becoming widespread can expect enormous increase in lung cancer during the 1990’s or early in the next century, 【35】______ prompt effective action is taken 【36】______ the habit.
There are three reasons 【37】______ the prevention of lung cancer is of such overwhelming importance: first, the disease is extremely common, causing more deaths than any other type of cancer now 【38】______ ; secondly, it is generally incurable; and finally, 【39】______ tobacco consumption will also have a substantial 【40】______ on many other diseases.
【35】
选项
A、though
B、when
C、unless
D、if
答案
C
解析
unless意为“除非,如果不”。本句意为:如果对于吸烟这一习惯不及时采取有效措施,患肺癌的人数会有很大的增加。故应选C。
转载请注明原文地址:https://kaotiyun.com/show/paPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somepeoplebelievethatinternationalsportcreatesgoodwill(31)______thenationsandthatifcountriesplay(32)______toge
Mostexpertsbelievethatanever-increasingnumberofcountriesandterroristgroupswillgainthetechnicalcapabilitytoacqu
Thefollowingpassageisdividedintothreesections.Youareaskedtofindoutinwhichsectionsthe10statementsarediscusse
Themostobviouspurposeofadvertisingistoinformtheconsumerofavailableproductsorservices.Thesecond(31)______ist
In1959theaverageAmericanfamilypaid$989forayear’ssupplyoffood.In1972thefamilypaid$1,311.Thatwasaprice
A=HydropowerB=NuclearpowerC=SolarpowerD=WindpowerWhichpower(power’s)...wasdevelopedtoprovideelectricity
Youhavereadanarticleinamagazinewhichstates,"SomepeoplecriticizethemainOlympicstadiumBirdNestinBeijing,sayi
SpecialOlympicsisorganizedfor______.
EmilyDickinsonwasanineteenth-centuryAmericanwomanwholivedherlifecompletelyunknowntoanyoneexceptherfamilyanda
Whatisthewomandoingwhenthemaninterruptsher?
随机试题
以下灭火剂中,()不具有化学抑制的作用。
在感染性休克的治疗中,哪项是最基本的
若该患者同时出现下列哪项应疑是嗜铬细胞瘤如为老年患者,伴剧烈呛咳则应考虑
A.咪康唑B.甲硝唑C.庆大霉素D.聚甲酚磺醛E.曲古霉素滴虫性阴道炎宜选用()。
材料和设备供应方的项目管理工作主要在建设工程项目的( )进行。
课堂里某种占优势的态度与情感的综合表现被称为()。
2018年5月2日,习近平总书记在北京大学师生座谈会上的讲话中指出,评价教师队伍素质的第一标准应该是()。
关于宇宙起源的科学发现——1998年英译汉及详解Theywere,byfar,thelargestandmostdistantobjectsthatscientistshadeverdetected:astripof
Inthefuturetradethekeydevelopmenttowatchistherelationshipbetweentheindustrializedandthedevelopingnations.The【
A、Robotswilltakeplaceofhumanworkers.B、Millionsofjobswilldisappear.C、Thefifthindustrialrevolutionwillhappen.D、A
最新回复
(
0
)