2020高考英语二轮说明文型完形填空专题限时训练专题限时训练(无答案)

1、专题限时训练（二十六）说明文型完形填空（限时：30分钟）（一）The findings come from a study of nearly 1,000 US people that looked at diet, calorie intake and bodymass 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 chocol

2、ate is loaded with calories, it contains ingredients（成分）that may favour weight loss5 than fat synthesis, scientistsbelieve._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 ot

3、her factors, like how _8_ exercise individuals did, were taken into9.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

4、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

5、on weight. " This is not the first time scientists_12_ thatchocolate may be healthy for us. Other studies have claimed chocolate may be good for the heart. Consumption of certain types of chocolate has beenlinked to some favourable changes in blood pressure, insulin（ 胰岛 素）sensitivity and choles

6、terol（胆固醇）level. And chocolate, _13_ darkchocolate, does contain antioxidants（抗氧化齐J ）which can help to mop upharmful free radicals unstable 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 we

7、ight 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

8、 you reach _17a chocolate bar, there are still lots ofunanswered questions. And in the absence of conclusive evidence, experts advise caution.While there's 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

9、too.And if you are looking to change your diet, you are 20 to benefit most from eating more fresh fruits and vegetables.1. A.As B . ItC. Which D . What2. A.whole B . averageC. general D . short3. A.who B . thatC. which D . why4. A.though B . soC. but D . or5. A.other B . ratherC. less D . more6. A.T

10、hough B . Even ifC. When D. Despite8. A.much B . oftenC long D . many9. A.thought B . mindC account D . effect10. A.news B . reportC study D . book11. A.According B . BasedC Reply D . Response12. A.had suggested B . suggestedC have suggested D. suggest13. A.specially B . particularlyC luckily D . un

11、fortunately14. A.at least B . at mostC in fact D . by accident15. A.feeding B . fedC to feed D . feed16. A.if B . whatC why D . that17. A.out B . forC with D . into18. A.noodles B . chocolateC rice D . nuts19. A.includes B . takesC absorbs D . contains20. A.probable B . possibleC likely D（二）.aboutA

12、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 424schools across the _2 were asked about their smoking _3_ . The _results showthat smoking among8th graders _4_ from 21 pe

13、rcent in 2002, to 12 percent in 2020. In the same _5_ , smoking dropped from 30%to 21% among 10th graders and from 37 % to 30 % among 12th graders.Anti-smoking organizations think educating kids about smoking risks is the _6of the drop. “These important _7_inteen smoking didnot justhappen by chance,

14、" says study directorLloydD.Johnston. "A lotof _8_ and organizations have been trying to _9_ the high rates of teenagers. ”Others say the _10 price of cigarettes is an important reasonteens are cutting back.11 the reason , the drop in teen smoking is good news to everyone , even cigarette-

15、making companies who _12 their product is only foradults , not kids. Health experts are _13_ _ paying attention to teenage smoking ha bits _14 lifetime smokers often get hooked on smoking atan early age.But some say that the new figuresaren' t exactly the cause for15 . While it is true _16_ teen

16、sare smoking today than five yearsago, the _17_ of teen smoking is still higherthan it was.Cigarette smoking is the _18_ cause of preventable death anddisease in this country. “Our survey _ 19_ that a lot of teens still do not understand the _20_ of smoking, particularly the youngerteens , " Jo

17、hnston sai d.C. talk Dr. chart2. A.country B . schoolC. city D . university3. A.habits B . numberC. life D. quality4. A.went up B . came upC. went down D . came over5. A.period B . gradeC. group D . year6. A.result B . causeC. plan D . excuse7. A.figures B . resultsC. habits D . drops8. A.schools B . teachersC. individuals D . students9. A.bring down B . bring upC. take off D . get down10. A.higher B . reasonableC. lower D . normal11. A.Whichever B . WhateverC. However D. Wherever12. A.ask B . doubtC. warn D . know13. A.hardly B . earlyC. eagerly D . particularly15. A.cele