题目内容
19.Known as GC-1,the drug reportedly speeds up metabolism(新陈代谢),or burning off,of fat cells."GC-1dramatically increases the metabolic rate,essentially transforming white fat,which stores extra calories and is associated with obesity and metabolic disease,into a fat like calorie-burning brown fat,"said Kevin Phillips,a researcher in Houston.
Until several years ago,scientists thought that only animals and human babies have energy-burning,"good"brown fat."It is now clear,"Phillips said,"that human adults do have brown fat,but appear to lose its calorie-burning activity over time."
White fat has a bad effect on people when the body has too much of it.Some published research shows that people who have more brown fat have a reduced risk of obesity.Researchers are now working on ways to"brown"white fat,or change it into brown fat.
GC-1works,according to Phillips.He said he and other researchers have tested the drug in hundreds of mice.Obese mice,both genetically obese and those with diet-induced obesity,received GC-1treatment daily.
Genetically obese mice lost weight and more than 50percent of their fat mass in approximately two weeks,Phillips reported.He said mice with diet-induced obesity experienced similar improvements.
The drug also caused adaptive thermogenes(适应性发热) in fat cells from mice.Cells grown in a dish,as well as tissue samples taken from obese mice,showed evidence of white-fat browning.
"Our data prove that GC-1is a novel fat-browning agent that may have use in the treatment of obesity and metabolic disease,"Phillips said.
The drug has not yet been tested for weight loss in humans.However,Phillips said it wouldn't be long before it was used as a way of losing weight.
32.What is the writer's purpose of writing this passage?D
A.To prove the harm of a a new drug.
B.To inform people of some health knowledge.
C.To introduce a new drug to people.
D.To explain the development of a new drug.
33.It is often thought thatA.
A.human babies have brown fat
B.brown fat may lose its activity over time
C.only human adults have brown fat
D.animals don't have brown fat
34.What can we know about GC-1?C
A.It is a drug intended for mice.
B.It is a cure for heart disease.
C.It can be used to treat obesity.
D.It has been sold in the drug store.
35.Which of the following can make people lose weight?B
A.Increasing more white fat.
B.Changing white fat into brown fat.
C.Burning off more brown fat.
D.Slowing down the activity of brown fat.
分析 短文主要介绍了一种实验性药物GC-1,其可能成为一种新的减肥方法.
解答 32.D,主旨大意题,根据第一段the drug reportedly speeds up metabolism(新陈代谢),or burning off,of fat cells介绍了药物GC-1可以加速机体脂肪燃烧和文章最后一句The drug has not yet been tested for weight loss in humans.However,Phillips said it wouldn't be long before it was used as a way of losing weight.可知作者写这一篇文章的目的在于解释一种新药物的发展情况,故答案为D.
33.A,细节理解题,根据句子scientists thought that only animals and human babies have energy-burning,"good"brown fat可知之前科学家认为只有动物和婴儿才有褐色脂肪,故答案为A.
34.C,推理判断题,短文主要介绍了药物GC-1在老鼠身上的测试,并由句子Genetically obese mice lost weight and more than 50percent of their fat mass in approximately two weeks可知它能在大约两周的时间减掉超出一半的重量,故答案为C.
35.B,推理判断题,根据句子Some published research shows that people who have more brown fat have a reduced risk of obesity.Researchers are now working on ways to"brown"white fat,or change it into brown fat可知褐色脂肪会有更小几率得肥胖症,因此把白色脂肪转为褐色脂肪能让人减肥,故答案为B.
点评 解答任务型阅读理解题,首先对原文材料迅速浏览,掌握全文的主旨大意.因为阅读理解题一般没有标题,所以,速读全文,抓住中心主旨很有必要,在速读的过程中,应尽可能多地捕获信息材料.其次,细读题材,各个击破.掌握全文的大意之后,细细阅读每篇材料后的问题,弄清每题要求后,带着问题,再回到原文中去寻找、捕获有关信息.最后,要善于抓住每段的主题句,阅读时,要有较强的针对性.对于捕获到的信息,要做认真分析,仔细推敲,理解透彻,只有这样,针对题目要求,才能做到稳、准.
A. | one | B. | it | C. | this | D. | such |
A. | swims | B. | swim | C. | swimming | D. | to swim |
A. | in expectation of | B. | in celebration of | ||
C. | in explanation of | D. | in possession of |
-Why ___________ it rain on Sunday?( )
A. | must | B. | shall | C. | should | D. | may |
I got up,went to the (39)Dand dragged the boxes into the room.The garland (花环) was the first to (40)A.I took the large ornaments (装饰物) off next.They (41)Ba large pile on our bed.An hour later,our bed was covered with Christmas memories.
I prepared the boxes and (42)Aplaced ornaments in their protective packaging,pausing every few minutes to (43)Da favorite."Hey,little Santa!"I held the Santa from my childhood."Thanks for being my friend for almost fifty years."He was a little (44)Abut still gives me a flood of wonderful memories.
There was a collection of handmade ones my children made in their first years of school more than twenty years ago.They are (45)Bperfect in design,but every year they go on my memory tree.
A few hours after I started,the (46)Cboxes were back in the garage,the room was (47)Band I sat staring at the corner.It took me two days of work to (48)Cmy tree,but only a few hours to take it apart.
My tree is a good marriage or a great friendship.(49)Bthe tree,they take a long time to decorate with memories,but can be torn down (50)A.What once stood proudly in the glow of love comes tumbling down and all it (51)Dis an unkind word or a thoughtless act.
Every year I have to put my tree away,but not my marriage or friendships.They get to glow in the corner of my life for (52)BI live.I get to analyze my tree and find memories for a few weeks every year.I can do the same with the loves in my life every day.When I held the Santa,a flood of wonderful memories (53)B.The same happens when I hold my wife or see the smile of a friend across the room.
(54)Cyour friendships and your marriage.Once they come down,they aren't as easy to put back together as a Christmas tree,if (55)C.Stand them in that special spot in the corner of your heart and admire their glow.
36.A.already | B.even | C.still | D.yet |
37.A.maintained | B.displayed | C.collected | D.located |
38.A.complained | B.suffered | C.postponed | D.missed |
39.A.courtyard | B.basement | C.storehouse | D.garage |
40.A.come down | B.break up | C.fade away | D.stand out |
41.A.covered | B.made | C.lay | D.occupied |
42.A.cautiously | B.casually | C.randomly | D.desperately |
43.A.spot | B.witness | C.evaluate | D.admire |
44.A.ragged | B.ugly | C.dull | D.rigid |
45.A.free of | B.far from | C.away from | D.close to |
46.A.abandoned | B.aged | C.filled | D.increased |
47.A.clean | B.empty | C.orderly | D.quiet |
48.A.choose | B.equip | C.decorate | D.furnish |
49.A.As for | B.Similar to | C.Contrary to | D.Along with |
50.A.quickly | B.carelessly | C.directly | D.suddenly |
51.A.proves | B.lacks | C.means | D.takes |
52.A.as far as | B.as long as | C.as soon as | D.as much as |
53.A.recovered | B.returned | C.remained | D.repeated |
54.A.Share | B.Preserve | C.Cherish | D.Pursue |
55.A.in all | B.above all | C.at all | D.after all |
I was going to Marblehead with my sailboat team.The team was racing down the highway at 85 mph (42)Dwe realized we were (43)C.Luckily,we saw a rest area ahead.I had a brand-new 20 bill.I was so(44)Abecause I had never had that kind of cash before.But spending it on (45)B seemed like throwing it away.We all rushed into the pizza line.(46)B I got a pizza and a drink,and walked to my table.About halfway through the meal,I (47)DI had not actually handed any money to the cashier.I had just (48)A out,and nobody had noticed.I felt terrible.
My conscience (良心) opened its mouth and swallowed me in one big bite.I couldn't(49)B over it.I just couldn't go back to the cashier and(50)B for my stolen pizza.I was so upset that I(51)A to give myself the pleasure of an ice cream for(52)D that someone would say,"Hey,Jeff,why not you use the change (53)D the pizza instead of that nice,new $20 bill?"I was not so (54)C of my cash now.For the next two years,whenever I was (55)B of the"pizza incident",I would say to myself,"Don't think about it…"
I have learned two things from this (56)A.Maybe I was a fool for (57)D in to my conscience,and being too stupid to appreciate a(58)A pizza.But the real lesson is that even if you get away with what you have done,your conscience will(59)C up with you.
This reflects the saying,"Coward (懦夫) dies a thousand deaths,a hero dies one."I was a coward and have felt terrible about that incident at least a thousand times.If I had been a"(60)D"and gone back to pay for the pizza,I would have felt a little uncomfortable about it only one,or maybe twice.
41.A.say | B.talk | C.share | D.explain |
42.A.as | B.while | C.then | D.when |
43.A.lost | B.tired | C.hungry | D.angry |
44.A.excited | B.eager | C.glad | D.anxious |
45.A.rest | B.food | C.travel | D.drink |
46.A.Luckily | B.Finally | C.Immediately | D.Actually |
47.A.thought | B.recognized | C.noticed | D.realized |
48.A.walked | B.left | C.worked | D.found |
49.A.look | B.get | C.turn | D.think |
50.A.ask | B.pay | C.apologize | D.send |
51.A.refused | B.wanted | C.hoped | D.meant |
52.A.hope | B.surprise | C.anger | D.fear |
53.A.into | B.with | C.for | D.from |
54.A.sure | B.upset | C.proud | D.pleased |
55.A.warned | B.reminded | C.thought | D.told |
56.A.experience | B.experiment | C.story | D.talking |
57.A.turning | B.talking | C.handing | D.giving |
58.A.free | B.cheap | C.plain | D.delicious |
59.A.make | B.wake | C.catch | D.put |
60.A.coward | B.fool | C.loser | D.hero |
A. | meets | B. | met | C. | has met | D. | would meet |