高考英语二轮复习 专题限时训练(二十六) 说明文型完形填空配套作业（解析版新课标）.doc

专题限时训练(二十六)说明文型完形填空(限时：30分钟)4(一)the findings come from a study of nearly 1,000 us people that looked at diet, calorie intake and body mass index (bmi) a measure of obesity._1_ is found that those who ate chocolate a few times a week were, on _2_， slimmer than those _3_ ate it occasionally. even _4_ chocolate is loaded with calories, it contains ingredients(成分)that may favour weight loss _5_ than fat synthesis, scientists believe._6_ boosting calorie intake, regular chocolate consumption was related to lower bmi in the study, _7_ is published in archives of internal medicine. the link remained even when other factors, like how _8_ exercise individuals did, were taken into _9_.and it appears it is how often you eat chocolate that is important, rather than how much of it you eat. the _10_ found no link with quantity consumed._11_ to the researchers, there is only one chance in a hundred that their findings could be explained by chance alone. lead author dr beatrice golomb, from the university of california at san diego, said: “our findings appear to add to a body of information suggesting that the composition of calories, not just the number of them, matters for determining their ultimate impact on weight.”this is not the first time scientists _12_ that chocolate may be healthy for us. other studies have claimed chocolate may be good for the heart. consumption of certain types of chocolate has been linked to some favourable changes in blood pressure, insulin(胰岛素)sensitivity and cholesterol(胆固醇)level. and chocolate, _13_ dark chocolate, does contain antioxidants(抗氧化剂)which can help to mop up harmful free radicalsunstable chemicals that can damage our cells.dr golomb and her team believe that antioxidant compounds, called catechins(儿茶素), can improve lean muscle mass and reduce weight _14_ studies in rodents would suggest this might be so. mice _15_ for 15 days with epicatechin (present in dark chocolate) had improved exercise performance and observable changes to their muscle composition.they say clinical trials are now needed in humans to see _16_ this is the case.but before you reach _17_ a chocolate bar, there are still lots of unanswered questions. and in the absence of conclusive evidence, experts advise caution.while theres no harm in allowing yourself a treat like _18_ now and again, eating too much might be harmful because it often _19_ a lot of sugar and fat too.and if you are looking to change your diet, you are _20_ to benefit most from eating more fresh fruits and vegetables.1a.as bitcwhich dwhat2a.whole baveragecgeneral dshort3a.who bthat cwhich dwhy4a.though bsocbut dor5a.other brathercless dmore6a.though beven ifcwhen ddespite7a.that bwhichcwhere dwhen8a.much boftenclong dmany9a.thought bmind caccount deffect10a.news breportcstudy dbook11a.according bbasedcreply dresponse12a.had suggested bsuggestedchave suggested dsuggest13a.specially bparticularlycluckily dunfortunately14a.at least bat mostcin fact dby accident15a.feeding bfedcto feed dfeed16a.if bwhat cwhy dthat17a.out bforcwith dinto18a.noodles bchocolatecrice dnuts19a.includes btakescabsorbs dcontains20a.probable bpossible clikely dabout(二)a survey done by the university of michigan shows a big drop in the number of teenagers who say they smoke cigarettes. in the _1_ ，over 44,000 students in grades 8,10 and 12，from 424 schools across the _2_ were asked about their smoking _3_ . the results show that smoking among 8th graders _4_ from 21 percent in 2002，to 12 percent in 2007. in the same _5_ ，smoking dropped from 30% to 21% among 10th graders and from 37 % to 30 % among 12th graders. antismoking organizations think educating kids about smoking risks is the _6_ of the drop. “these important _7_ in teen smoking did not just happen by chance，” says study director lloyd djohnston. “a lot of _8_ and organizations have been trying to _9_ the high rates of teenagers.” others say the _10_ price of cigarettes is an important reason teens are cutting back. _11_ the reason，the drop in teen smoking is good news to everyone，even cigarettemaking companies who _12_ their product is only for adults，not kids. health experts are _13_ paying attention to teenage smoking habits _14_ lifetime smokers often get hooked on smoking at an early age. but some say that the new figures arent exactly the cause for _15_ . while it is true _16_ teens are smoking today than five years ago，the _17_ of teen smoking is still higher than it was. cigarette smoking is the _18_ cause of preventable death and disease in this country. “our survey _19_ that a lot of teens still do not understand the _20_ of smoking，particularly the younger teens，” johnston said.1a.study bsurveyctalk dchart2a.country bschoolccity duniversity3a.habits bnumberclife dquality4a.went up bcame upcwent down dcame over5a.period bgradecgroup dyear6a.result bcausecplan dexcuse7a.figures bresultschabits ddrops8a.schools bteacherscindividuals dstudents9a.bring down bbring upctake off dget down10a.higher breasonableclower dnormal11a.whichever bwhateverchowever dwherever12a.ask bdoubtcwarn dknow13a.hardly bearlyceagerly dparticularly14a.unless buntilcbecause dbefore15a.celebration bideacattention dstudy16a.more bfewercno dyounger17a.hope bspeedcrate drisk18a.leading bpartcbad dgood19a.thinks bdemandsctells dsuggests20a.dangers bhabitsccosts dconditions专题限时训练(二十六)(一)【解题导语】文章讲述的是一项研究发现经常摄入巧克力有助于提高人们的身体素质。1b固定句型。it is found thatit作形式主语，指代后面的that从句。2bon average平均。3a根据句意可知此处为定语从句。those指人。4a5brather than 而不是。6d句意理解。此句意为“尽管吸收更多卡路里，经常吃巧克力与低的身体质量指数是有关的”。7b非限制性定语从句，指代前面的一句话。8a因为exercise作锻炼讲时是不可数名词，所以选择much。9c固定短语。take sth into account/consideration 考虑。10c根据文章第一段第一句话可知，文章讲述的是该研究的结果，所以此处是研究没有发现与巧克力的摄入量的关系。11a句意理解。according to 根据。12c固定用法。this is not the first time是现在完成时的标志。13b句意理解。巧克力，尤其是黑巧克力，含有抗氧化剂。14a词组辨析。at least 至少；at most至多；in fact事实上；by accident偶然，意外地。15bmice和feed之间是被动关系，此处作mice的定语，相当于which were fed。16a句意理解。此处意为他们说还需要人体的临床试验来看是否是这样的。17b词组reach for a chocolate bar伸手去拿巧克力棒。18b文章主要在讲巧克力。19d动词辨析。contain意为包含某种物质，此处意为巧克力含有大量的糖和脂肪。20c当主语是人的时候，只能选择likely 意为：某人很可能做某事。 (二)【解题导语】全文是一项关于青少年吸烟问题的调查。调查显示，青少年吸烟的人数在过去的五年里呈下降趋势，但也有人对此数据表示怀疑。1. b联系第一段我们知道，本文讲述的是调查，因此答案为b。2. a联系后文cigarette smoking is the cause of preventable death and disease in this country.我们知道，这里是对全国424个学校的调查。3. a联系空后的内容，我们知道，这是对吸烟习惯的调查。4. c联系空后from 21 percent in 2002, to 12 percent in 2007我们知道，数量在下降。5. ain the same period 指从2002到2007。6. b对于青少年关于吸烟危害的教育导致了数量的下降。