题目内容
5.New research has found that even if you give up smoking,the damage it has done to your genes(基因)will stay there for a much longer time.In the research,a team of US scientists studied the blood of 16,000 people.Among them,some were smokers,some used to smoke,and the rest were non-smokers.Scientists compared their genes and found that more than 7,000 genes of smokers had changed-a number that is one-third of known human genes.
According to NBC News,both heart disease and cancer are caused by genetic changes.Some people may have had the changes when they were born,but most people get them in their day-to-day lives while doing things like smoking.
When you stop smoking,a lot of these genes will return to normal within five years.This means your body is trying to heal(治愈)itself of the harmful effects of smoking.But the changes in some of the genes stay for longer.They can stay for as long as 30 years.It's almost like leaving a footprint on wet cement(水泥)一it will always be there,even when you've walked away and when the cement becomes dry.
Although the study results may make people unhappy,there is a bright side:the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer ricks.
59.The function of Paragraph 1 is toB.
A.give an example
B.introduce the topic of the passage
C.make an argument
D.show the main idea of the passage
60.Most genetic changes happen because ofC.
A.people's condition at birth
B.environmental pollution
C.people's bad living habits
D.heart disease and cancer
61.The underlined word"it"in Paragraph 6refers toB.
A.the cement B.the footprint C.the harmful D.the genetic change
62.Which of the following statements is true?D
A.The findings are the fruit of more than three years'research.
B.The findings have prevented more people from starting smoking.
C.The findings offer evidence that a damaged gene can heal itself.
D.The findings help to find cures for genetic damage caused by smoking.
分析 本文是一篇科教类阅读,属于说明文,新的研究发现,即使你放弃吸烟,它对你的基因造成的伤害将会持续更长时间.本文以此展开,主要介绍了这项发现有助于找到由吸烟引起的遗传损伤的治疗方法.
解答 59.B.段落大意题.根据New research has found that even if you give up smoking,the damage it has done to your genes(基因)will stay there for a much longer time.可知,新的研究发现,即使你放弃吸烟,它对你的基因造成的伤害将会持续更长时间.故本段是为了介绍主题.故选B.
60.C.细节理解题.根据Some people may have had the changes when they were born,but most people get them in their day-to-day lives while doing things like smoking.可知,人们不好的生活习惯会造成基因的改变,故选C.
61.B.词义猜测题.根据It's almost like leaving a footprint on wet cement(水泥)一it will always be there,even when you've walked away and when the cement becomes dry.可知,it代指的是footprint.故选B.
62.D.细节理解题.根据Although the study results may make people unhappy,there is a bright side:the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer ricks.可知,这个发现有助于找到由吸烟引起的遗传损伤的治疗方法.
点评 本文是一篇科教类阅读,题目涉及多道主旨大意题,细节理解题,推理判断题.做题时学生应仔细阅读原文,把握文章主要内容,联系文章上下文内容并结合所给选项含义,从中选出正确答案,一定要做到有理有据,切忌胡乱猜测.
A. | in | B. | with | C. | on | D. | from |
A. | as | B. | like | C. | for | D. | at |
(23)Bhave the extremely hard task of getting their young athletes to learn how to play the sport and become disciplined,and ready to play the sport to the best of their ability.(24)C,I was at my younger brother's baseball game the other night and his team was(25)Aby five runs in the last part of the game.While most teams in ths situation would be desperately trying to regain their(26)Cfor bravery and will to fight,his team just seemed to slowly walk around,(27)Asunflower seeds,and laugh at jokes made by teammates.I asked my brother after the game why everybody was so(28)Dabout the loss and he said it was because some kid's mom brought really good snacks.
Some parents have a(29)Cwith coaches shouting at their child,as they hold the view that if a child makes a mistake,it is the coach's (30)Dto correct the problem.When parents get involved in telling the coach how to(31)Dthe team,problems(32)A.Some parents feel if they pay their money,they should have an equal(33)Aon how to coach the team.In order to have a successful learning experience,the coach needs to feel like he can control his team and(34)Dthe parents from having the last say.Without that,the coach feels as if he needs to(35)Bthe parents by giving more playing time to their kids who actually don't(36)Bit.
With youth sport programs becoming less competitive,club teams are on the(37)C.More teens can get an easier access to them.Club teams(38)Amore of what high school and junior high coaches are looking for,the competitive edge(优势)that is absolutely necessary in(39)D.While having fun is important,skills nd a(40)Amentality is worth more in the world of sports.
21.A.courage | B.dignity | C.fun | D.patience |
22.A.social | B.responsible | C.healthy | D.competitive |
23.A.Parents | B.Coaches | C.Experts | D.Headmasters |
24.A.As a result | B.In addition | C.For example | D.On the contrary |
25.A.behind | B.before | C.above | D.below |
26.A.scores | B.goals | C.spirits | D.dreams |
27.A.spit | B.chew | C.count | D.swallow |
28.A.worried | B.happy | C.serious | D.casual |
29.A.joke | B.contact | C.problem | D.compromise |
30.A.turn | B.experience | C.awareness | D.duty |
31.A.dismiss | B.unite | C.assess | D.handle |
32.A.come out | B.break out | C.work out | D.stand out |
33.A.say | B.guidance | C.response | D.reward |
34.A.protect | B.encourage | C.excuse | D.discourage |
35.A.assist | B.please | C.motivate | D.blame |
36.A.want | B.deserve | C.value | D.appreciate |
37.A.way | B.decline | C.rise | D.go |
38.A.offer | B.require | C.seek | D.preserve |
39.A.competitions | B.academics | C.exams | D.sports |
40.A.winning | B.controlling | C.risking | D.cooperating |